printedparts stage 11: low-stock email alerts on threshold crossing

Contract 0.12.0: send_email/send_alert join the plugin surface (the mailer was core-only), PLUGIN-HOOKS and status docs updated, manifest pins the new floor. The alert fires inside _ledger_write only when a decrement CROSSES the item's threshold - one alert per depletion, rearmed by restocking above - and is best-effort after the commit so mail trouble can never fail a take. Recipients come from printedparts_alert_email, falling back to the site alert_recipients. on_enable re-seeds settings idempotently so existing installs pick up new keys. Crossing/rearm semantics proven by test.
printedparts stage 10: closeout - lab guide rewritten from the real build
2026-07-17 08:15:50 -04:00 · 2026-07-17 08:11:36 -04:00 · 2026-07-17 08:04:09 -04:00 · 2026-07-17 08:00:35 -04:00 · 2026-07-17 07:49:13 -04:00 · 2026-07-17 07:42:07 -04:00
35 changed files with 2387 additions and 768 deletions
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -43,7 +43,7 @@ Refactor phases 0-5 landed; phase 6 (multi-site distribution readiness) largely
 ### Active state

 - 966 tests, naming/style check green, Gitea Actions CI (backend + naming + frontend build + a migrations-mysql job that runs the real fresh upgrade on utf8mb4 MySQL 8)
- `__contract_version__` at 0.11.0 (product `__version__` 0.7.0, tags v0.5.0/v0.6.0/v0.7.0 - distinct series, ADR-007)
+- `__contract_version__` at 0.12.0 (0.12.0 adds the mailer to the plugin surface) (product `__version__` 0.7.0, tags v0.5.0/v0.6.0/v0.7.0 - distinct series, ADR-007)
 - 12 bundled plugins all satisfy contract: computers, employees, geenforce, knowledgebase, machines, measuringtools, network, notifications, printers, slides, usb, warranty
 - Core Alembic chain: baseline `68b3947ae14f` -> head `7d25_drop_redundant_indexes` (32 core migrations). Each plugin owns its own chain (ADR-008); deploy runs `flask db upgrade` then `flask plugin upgrade-all`. Reproducible + idempotent from empty (env.py relaxes session sql_mode so the chain runs on strict MySQL 8).
 - Legacy import: `docs/IMPORT-API.md` is the schema-agnostic import contract; `docs/IMPORT-ADOPTION.md` + `docs/PILOT-DEPLOY.md` cover adopting a site; `scripts/site_imports/wjf/` is the West Jefferson reference loader (all 15 stages, validated end-to-end including on a Windows + MySQL 8 VM).
--- a/docs/PLUGIN-HOOKS.md
+++ b/docs/PLUGIN-HOOKS.md
@@ -9,7 +9,7 @@ The contract is locked in [ADR-001](../docs/adr/ADR-001-asset-as-platform-contra
 The framework declares its contract version in `shopdb/__init__.py`:

 ```python
-__contract_version__ = '0.11.0'
+__contract_version__ = '0.12.0'
 ```

 Each plugin's `manifest.json` declares the range of contract versions it supports:
@@ -479,6 +479,9 @@ What `shopdb.api` exposes:
 - Import mode: `apply_import_timestamps`, `import_mode_active`,
  `parse_import_datetime`
 - Legacy employee directory: `employee_connection`
+- Mailer (0.12.0): `send_email(to, subject, html, text=None)` and
+  `send_alert(subject, html, text=None)` - settings-first, no-op safe when
+  email is unconfigured; send_alert targets the site's alert_recipients

 ```python
 from shopdb.api import db, Asset, AssetType, success_response, paginate_query
--- a/docs/PLUGIN-LAB-PRINTEDPARTS.md
+++ b/docs/PLUGIN-LAB-PRINTEDPARTS.md
@@ -1,222 +1,311 @@
-# Plugin lab: build the printedparts plugin yourself
+# Plugin lab: build the printedparts plugin

-A guided, milestone-based exercise: build the 3D-printed-parts storefront +
-kiosk plugin specified in `docs/proposals/printedparts-plugin.md`. Each
-milestone lists what to build, which existing code to imitate, and a
-checkpoint that proves you are done. Read the spec first, keep it open.
-
-Prerequisites: a working dev environment (README quick start), the three
-plugin docs skimmed once - `PLUGIN-QUICKSTART.md` (mechanics),
-`PLUGIN-GUIDE.md` (the measuringtools walkthrough - your narrative reference),
-`PLUGIN-HOOKS.md` (hook reference). Naming rules: `CONTRIBUTING.md` - the
-pre-commit hook enforces them, read it before naming anything.
-
-Ground rules
- Import core ONLY via `shopdb.api` (+ `shopdb.plugins.base`). The contract
-  test fails your build otherwise.
- DB columns: lowercase concatenated (`quantityonhand`, not quantity_on_hand).
- Run `bash scripts/check-naming-and-style.sh` and the test suite at every
-  checkpoint.
- Commit once per milestone. Working on a branch is fine; so is a fork.
+A hand-held, build-along tutorial: construct the 3D-printed-parts storefront +
+kiosk plugin specified in `docs/proposals/printedparts-plugin.md`, stage by
+stage, seeing each piece work before moving on. Written for someone building
+their first plugin. The finished implementation lives on the
+`feat/printedparts-plugin` branch with one commit per stage, tagged
+`lab-stage-01` .. `lab-stage-10` - when stuck, `git diff lab-stage-03
+lab-stage-04` shows exactly what a stage changes.

 Know before you start
 - You are building a BUNDLED plugin inside this repo. Plugin frontend files
  live in core (`frontend/src/...`), and three core files get small edits:
-  `frontend/src/api/index.js` (api client), the router, and
-  `PLUGIN_TABLE_OWNERS` in `shopdb/plugins/alembic_template.py`. That is
-  normal for all 12 bundled plugins - external-plugin UI packaging does not
-  exist yet - so do not be confused when a "plugin" touches core.
- This plugin deliberately DIVERGES from the scaffold in three places, each
-  a teaching point you will hit in order: (1) it is NOT an asset type, so the
-  scaffold's AssetType seeding gets deleted (M1); (2) its migration is a REAL
-  baseline that creates tables, not a stamp-only anchor (M1); (3) its kiosk
-  take endpoint is the product's first UNauthenticated write - read the
-  decision record in the proposal before building it (M4).
- Instructor option: keep a solution branch with one commit per milestone
-  (tag `lab-m1`..`lab-m7`); a stuck learner can `git diff lab-m3 lab-m4` to
-  see exactly what a milestone changes.
+  `frontend/src/api/index.js`, the sidebar icon map in `AppLayout.vue`, and
+  `PLUGIN_TABLE_OWNERS` in `shopdb/plugins/alembic_template.py`. Normal for
+  all bundled plugins - external-plugin UI packaging does not exist yet.
+- Three deliberate divergences from the scaffold, each a teaching point:
+  (1) NO AssetType - these are quantity consumables, not ADR-001 assets
+  (stage 1); (2) the migration is a REAL baseline that creates tables, not a
+  stamp-only anchor (stage 2); (3) the kiosk take endpoint is the product's
+  first UNauthenticated write - read the decision record in the proposal
+  before stage 7.
+- Ground rules: import core ONLY via `shopdb.api` (+ `shopdb.plugins.base`);
+  DB names lowercase concatenated (`quantityonhand`); run
+  `bash scripts/check-naming-and-style.sh` + the tests at every stage; one
+  git commit per stage.
+
+Prerequisites: working dev environment (README quick start), skim
+`PLUGIN-QUICKSTART.md`, `PLUGIN-GUIDE.md` (the measuringtools exemplar this
+lab imitates), `PLUGIN-HOOKS.md`, and `CONTRIBUTING.md` naming rules.

 ---

-## Milestone 1 - skeleton, models, migration (backend exists)
+## Stage 0 - orientation (no code)

-Build
-1. `flask plugin new printedparts` - scaffolds `plugins/printedparts/`.
-2. The scaffold assumes an Asset-extension plugin; ours is standalone.
-   In `plugin.py` strip the AssetType seeding from `on_install` (imitate
-   `plugins/knowledgebase/plugin.py` instead of the template).
-3. Replace the scaffold model with the two spec tables: `PrintedItem`,
-   `PrintedItemTransaction` (`models/printeditem.py`). Use `BaseModel` +
-   `AuditMixin` from `shopdb.api`. Itemcode: leave generation to the API
-   layer (M2), column just `unique=True, index=True`.
-4. Register both tables in `PLUGIN_TABLE_OWNERS`
-   (`shopdb/plugins/alembic_template.py`).
-5. Create `plugins/printedparts/migrations/` with the 3-line `env.py` +
-   `script.py.mako` (copy from measuringtools) and a REAL baseline
-   `versions/0001_printedparts_baseline.py` - hand-written
-   `op.create_table(...)` for both tables (see
-   `plugins/measuringtools/migrations/versions/0001_measuringtools_baseline.py`).
-6. Manifest: api_prefix `/api/printedparts`, `dependencies: ["employees"]`,
-   `default_enabled: false`.
+Read the proposal. Tour the two reference plugins you will imitate:
+`plugins/usb/` (checkout ledger + badge contract) and
+`plugins/measuringtools/` (post-cutover migration baseline, hooks).
+See it work: run the app, log in.

-Checkpoint
+## Stage 1 - scaffold, minus the AssetType
+
+```
+flask plugin new printedparts --description "3D-printed parts inventory + kiosk checkout"
+```
+
+Walk the generated tree. Then diverge:
+1. In `plugins/printedparts/plugin.py`, DELETE `_ensure_asset_type` and its
+   `on_install` call - a printed part is a kind-with-a-count, not an asset.
+   Replace it with settings seeding (see the tagged commit): three Setting
+   rows, category `printedparts` - `printedparts_code_prefix` (3DP),
+   `printedparts_default_threshold` (5), `printedparts_unknown_badge` (deny).
+2. `manifest.json`: `"dependencies": ["employees"]` (badge names),
+   `"core_version": ">=0.11.0,<1.0.0"`, `"default_enabled": false`,
+   `"display_name": "3D Printed Parts"`.
+
+See it work: `flask plugin list` shows printedparts [Available].
+Commit: `printedparts stage 1: scaffold, no AssetType, manifest per spec`
+
+## Stage 2 - models + real migration baseline + tables live
+
+1. Replace the scaffold model with `models/printeditem.py`: `PrintedItem`
+   (itemcode unique+indexed, itemname, itemdescription, imageurl,
+   quantityonhand, lowstockthreshold, binlocation, printnotes) and
+   `PrintedItemTransaction` (printeditemid FK CASCADE, transactiontype
+   take/restock/adjust, SIGNED quantitychange, employeesso, employeename,
+   reason, transactiondate) - both on `BaseModel`. The ledger is the source
+   of truth; quantityonhand is a cache moved in the same commit.
+2. Update `models/__init__.py` exports and `plugin.py` `get_models`.
+3. Register in `PLUGIN_TABLE_OWNERS` (`shopdb/plugins/alembic_template.py`):
+   `'printedparts': ('printeditems', 'printeditemtransactions'),`
+4. `migrations/`: copy `script.py.mako` + the 3-line `env.py` from
+   measuringtools (change PLUGIN_NAME), then hand-write
+   `versions/0001_printedparts_baseline.py` with explicit `op.create_table`
+   for both tables + the three transaction indexes.
+5. The scaffold's `api/routes.py` still imports the model you deleted - make
+   the blueprint import cleanly (a placeholder route is fine for now).
+
+See it work:
 ```
 flask plugin install printedparts && flask plugin enable printedparts
-flask plugin upgrade-all      # applies your 0001
-mysql> SHOW TABLES LIKE 'printed%';          -- both tables
-mysql> SELECT * FROM alembic_version_printedparts;   -- your revision id
-pytest tests/ -q               # nothing broken, contract tests green
+mysql> SHOW TABLES LIKE 'printed%';                    -- both tables
+mysql> SELECT * FROM alembic_version_printedparts;     -- printedparts0001baseline
+flask plugin upgrade-all                               -- printedparts: ok (idempotent)
 ```

-## Milestone 2 - CRUD API + permissions + itemcode
+Common errors (both hit for real while building this):
+- An empty `Migration error:` on install. Root cause: anything that makes
+  `plugins.printedparts.models` fail to import - the alembic env imports the
+  models package, which pulls in plugin.py and routes.py. Here it was the
+  scaffold routes importing the deleted model; the ImportError gets caught
+  and retried down a subprocess path with no stderr. Fix the import, not the
+  migration.
+- `KeyError: 'printedparts'` from `tests/test_plugin_migrations.py`: add
+  `EXPECTED_HEAD_REVISION['printedparts'] = 'printedparts0001baseline'` -
+  the guard makes every new plugin declare its expected head on purpose.

-Build
-1. `api/routes.py`: list/detail/create/update/soft-delete per the spec table.
-   Imitate a clean plugin blueprint (`plugins/measuringtools/api/routes.py`)
-   for pagination (`perpage`, `dir`), search, and the shared
-   `success_response`/`error_response` helpers from `shopdb.api`.
-2. Itemcode on create: `<prefix>-<id zero-padded to 4>`; prefix from Setting
-   `printedparts_code_prefix` (read via `self.get_setting` or Setting model
-   through `shopdb.api`). Two-step: insert, flush to get the id, set code.
-3. `get_permissions()` on the plugin class: view/create/edit/delete/restock
-   (tuples, category `printedparts` - copy shape from
-   `plugins/usb/plugin.py`). Gate mutations with `@jwt_required()` +
-   `@require_permission(...)`; reads are `@jwt_required(optional=True)`.
-4. Restock + adjust endpoints: both write a LEDGER row and move
-   `quantityonhand` in the same commit. Adjust requires `reason`, rejects a
-   result below zero. Both record the operator: accept `badge` in the body
-   and resolve it (M4 extracts the resolver - for now digits=SSO is enough).
-5. Seed the 3 settings in `on_install` (Setting.set pattern - see how other
-   plugins seed in `on_install`; category `printedparts`).
+Commit + tag `lab-stage-02`.

-Tip - earlier visible win: as soon as the GET list endpoint works, jump ahead
-and wire just the api client + router entry + a bare `PrintedItemsList.vue`
-(first two steps of M3), seed two rows by hand, and look at your parts in the
-browser. Everything before that moment is invisible; seeing the table makes
-the rest of the lab concrete. Then come back and finish the mutations here.
+## Stage 3 - read API + list page (the first visible win)

-Checkpoint
-```
-pytest plugins/printedparts/tests/ -q      # write tests as you go:
-# - create mints 3DP-0001 style codes
-# - restock/adjust move both ledger and cache atomically
-# - adjust below zero -> 400/422
-# - permission gates: anonymous create -> 401, wrong-perm user -> 403
-curl -s localhost:5001/api/printedparts/items | jq   # anonymous list OK
-```
+1. Real `api/routes.py`: `GET /items` (jwt-optional; pagination via
+   `get_pagination_params`/`paginate_query`, search across
+   code/name/description/bin, `?lowstock=true` filter) and
+   `GET /items/<id>` returning the item + its 25 most recent transactions.
+2. `get_navigation_items` on the plugin: `{'name': '3D Parts', 'icon': 'box',
+   'route': '/printedparts', 'position': 46}`.
+3. Frontend: paste the `printedpartsApi` client into
+   `frontend/src/api/index.js` (list/get for now, paths under
+   `/printedparts/items`); rename the scaffold views to
+   `PrintedItemsList/PrintedItemDetail/PrintedItemForm.vue` and repoint
+   `router/routes/printedparts.js`; build the list page from
+   `PrintersList.vue` (global styles, `useListQuery`, PaginationBar) with an
+   image thumb column and a red/green quantity badge vs the threshold.
+4. Seed two or three rows by hand (SQL or flask shell) purely to have
+   something to look at. NOTE: hand-seeded stock has no ledger backing - the
+   stage-9 reconcile report will flag exactly these rows, which is the check
+   working.

-## Milestone 3 - management frontend + images
+See it work: navigate to `/printedparts` - your parts in a table, low-stock
+row red-badged. Everything before this moment was invisible; from here on
+every stage shows on screen.

-Build
-1. The scaffold already dropped `PrintedpartsList/Detail/Form.vue` starters
-   and a router file; rename/build them into `PrintedItemsList/Detail/Form`
-   per the spec. Master templates: `PrintersList.vue` (list),
-   `PrinterDetail.vue` (detail). Global CSS only; CSS variables for colors
-   (frontend/CLAUDE.md rules).
-2. Register the API client in `frontend/src/api/index.js` (paste the
-   generated `frontend-api-snippet.js`, extend with restock/adjust/image
-   calls).
-3. Low-stock highlighting on the list (`quantityonhand <= lowstockthreshold`
-   -> danger badge). Filters: search + low-stock-only checkbox.
-4. Image upload: replicate the models-image trio - upload/serve/delete -
-   from `shopdb/core/api/models.py` INTO the plugin blueprint
-   (`instance/printedpartsimages/`, public GET serve, imageurl column,
-   prefix-guarded delete). Wire the Form upload + Detail hero image.
-5. Nav: `get_navigation_items()` -> "3D Parts" (usb plugin shape). Router
-   meta: list/detail plugin-gated, new/edit `requiresAuth` (see
-   `frontend/src/router/routes/usb.js`).
+Common error: nav icon missing. The sidebar maps icon NAMES to Lucide
+components in `AppLayout.vue` (`iconMap`); an unknown name renders nothing.
+Add `'box': Box` to the map (and the import) or reuse an existing name.

-Checkpoint: create an item with a photo in the UI; thumbnail on list, hero on
-detail; restock from detail updates qty + shows in history; frontend build +
-`npx vitest run` green; naming hook green.
+Commit + tag `lab-stage-03`.

-## Milestone 4 - badge resolution + kiosk
+## Stage 4 - catalog mutations + item photos + detail/form pages

-Build
-1. Badge resolver in the plugin (`services/badges.py`): copy the USB contract
-   - all-digits -> SSO; `^0(\d+)BZ$` case-insensitive -> PayNo; resolve
-   display name via the employees plugin directory the way
-   `plugins/usb/api/selfhosted.py::_resolve_name` does (lazy import inside
-   the function, degrade gracefully when the plugin is absent). Policy
-   setting `printedparts_unknown_badge` (deny -> 422).
-2. Kiosk endpoints (UNauthenticated - the notifications/employees open-read
-   precedent): `GET /kiosk/item/<itemcode>` and `POST /kiosk/take`
-   {itemcode, badge, quantity}. Take: validate active item, 1 <= qty <=
-   onhand, resolve badge, single-commit ledger row + decrement. Clear error
-   strings - the kiosk displays them verbatim.
-3. Kiosk view `/parts-kiosk`: top-level route, NO requiresAuth, outside
-   AppLayout (register beside `/shopfloor` in `frontend/src/router/index.js`).
-   Three-step flow per the spec. The scanner is a keyboard wedge: hidden
-   always-focused input, submit on Enter, route the scan to whichever step is
-   active. Build `TouchKeypad.vue` (3x4 grid of big buttons, emits digits/
-   clear/backspace) - net-new, nothing to copy, keep it dumb.
-4. Manual fallback path (typed item search + badge entry) behind a small
-   "no scanner?" link.
+1. `POST /items` mints the itemcode AFTER `db.session.flush()` assigns the
+   id: `<prefix>-<id:04d>` with the prefix from Setting. `PUT /items/<id>`
+   updates catalog fields but REFUSES `quantityonhand` (ledger-managed).
+   `DELETE` soft-retires. All `@jwt_required()` (permissions come in
+   stage 6).
+2. Image trio copied from `shopdb/core/api/models.py`: POST/DELETE
+   `/items/<id>/image` + public `GET /image/<filename>`, storing
+   `printeditem-<id>.<ext>` in `instance/printedpartsimages/`, wiping prior
+   extensions on replace, prefix-guarded delete.
+3. `PrintedItemDetail.vue` on the unified detail skeleton (hero image, info
+   list, transactions table); `PrintedItemForm.vue` create/edit + photo
+   upload on edit; extend the api client.

-Checkpoint: full kiosk walkthrough on a touchscreen (or browser): scan/type
-an itemcode -> item card; badge `0123456BZ` and plain SSO both resolve; take 3
-> success screen, qty down 3, ledger row has your name; taking more than
-onhand -> friendly error; unknown badge -> denied message. Backend tests for
-the resolver shapes + take validation.
+See it work: add a part with a photo in the UI; thumbnail on the list, hero
+on the detail; `PUT` with `quantityonhand` returns the ledger-managed error.

-## Milestone 5 - labels (1in x 0.5in)
+Commit + tag `lab-stage-04`.

-Build
-1. Public print route `/print/printedparts-labels` + view (imitate
-   `USBLabelBatch.vue` - USB is the precedent for a plugin OWNING its label
-   page instead of joining TYPE_CONFIG).
-2. New stock size: `@page { size: 1in 0.5in; margin: 0 }`, one label per page
-   (roll-fed label printers treat each page as one label). Layout: CODE128
-   via JsBarcode (~0.9in wide, displayValue false), itemcode text ~7pt under
-   it, optional truncated name. Offer QR as a variant but default barcode.
-3. Batch: multi-select items -> sequence of labels; plus a ULINE mini-grid
-   sheet fallback (mini72 pattern in `AssetLabelBatch.vue`).
-4. Print buttons on Detail (single) and List (batch selected).
+## Stage 5 - the ledger: restock/adjust with badge attribution

-Checkpoint: print preview shows one 1x0.5 label per page; a printed (or
-PDF-zoomed) barcode scans back into the kiosk and pulls up the right item.
-That round trip - label printed from the catalog, scanned at the kiosk,
-stock decremented with your name on it - is the demo moment; make it work
-end to end before polishing.
+1. `services/badges.py` - COPY the USB badge contract (do not import
+   `plugins.usb`; cross-plugin imports fail the contract test):
+   `^0(\d+)BZ$` PayNo wrap, all-digits SSO, name lookup via the employees
+   plugin `DirectoryEmployee` (lazy import, graceful fallback), and the
+   `printedparts_unknown_badge` policy - deny raises a kiosk-displayable
+   `BadgeError`, allow records the SSO with an empty name.
+2. `_ledger_write(item, type, change, sso, name, reason)` - THE invariant:
+   append the transaction row and move the cached quantity in ONE commit.
+   Every write path goes through it.
+3. `POST /items/<id>/restock` {quantity, badge} and `/adjust`
+   {quantitychange, reason, badge}; adjust requires a reason and refuses to
+   drive stock below zero.
+4. Detail page: Restock/Adjust modals (shared `Modal.vue`).
+5. Tests as you go: minting, cache==ledger after a restock, the PayNo badge
+   shape, reason-required + below-zero guards, the policy toggle, 401 for
+   anonymous. See `tests/test_plugins/test_printedparts_ledger.py`.

-## Milestone 6 - metrics, reports, widget
+See it work: restock from the detail page with your SSO - quantity moves AND
+a named transaction row appears.

-Build
-1. `get_reports()` -> stock, consumption (date range), by-person; endpoints
-   in the plugin blueprint, `@jwt_required(optional=True)`, `?format=csv` via
-   the `generate_csv` helper pattern (`shopdb/core/api/reports.py` shows the
-   shape; a plugin report lives in the plugin and is merged into
-   `GET /api/reports` automatically when enabled).
-2. Stock report includes the reconcile check: flag rows where cached
-   `quantityonhand` != SUM(ledger). Should always be empty; if not, you have
-   a non-atomic write path - find it.
-3. OPTIONAL/deferred: `get_dashboard_widgets()` -> low-stock count. Caveat:
-   this hook predates the ADR-010 data-only renderers - the widget names a
-   frontend component that must already exist in core, so a plugin widget
-   only renders if you also add that component. Reports are the primary
-   monitoring surface; skip the widget unless you want the extra credit.
-4. Nice-to-have if time: burn rate (avg weekly takes over trailing 4 weeks +
-   weeks-to-empty). Plain SQL over the ledger.
+Common error: in tests, mutating rows through a nested `app.app_context()`
+does not reliably stick in the sqlite test env - stock the item through the
+real restock endpoint instead (also more honest).

-Checkpoint: reports appear on /reports grouped under the plugin, CSV
-downloads; widget renders on the dashboard; reconcile column all-clear after
-a kiosk session.
+Commit + tag `lab-stage-05`.

-## Milestone 7 - lifecycle + closeout
+## Stage 6 - RBAC

-Build/verify
-1. Disable/enable cycle: `flask plugin disable printedparts` - nav entry,
-   routes, reports, and grantable permissions all disappear; enable restores.
-2. Fresh-database proof: point DATABASE_URL at a scratch DB, `flask db
-   upgrade` + `flask plugin install/enable/upgrade-all` - everything works
-   with zero manual SQL.
+1. `get_permissions` on the plugin: view/create/edit/delete/restock, category
+   `printedparts` (seeded automatically on install/enable and by
+   `flask seed permissions`).
+2. Add `@require_permission('printedparts.<x>')` under `@jwt_required()` on
+   every mutation: create/edit/delete/image = create/edit/delete; restock +
+   adjust = restock.
+3. Test with the `member_headers` fixture (authenticated, role-less): 403
+   where admin succeeds - authentication alone is not authorization.
+
+See it work: the permissions appear in the role grid (Settings > Roles), and
+the member test passes.
+
+Commit + tag `lab-stage-06`.
+
+## Stage 7 - the kiosk (the deliberate open write)
+
+Read the decision record in the proposal first. The take endpoint must stay:
+decrement-only, badge-attributed server-side, bounded, physically
+rate-limited. Put the justification in the plugin README.
+
+1. Backend, both UNdecorated: `GET /kiosk/item/<itemcode>` (summary for a
+   scanned bin code) and `POST /kiosk/take` {itemcode, badge, quantity} -
+   validate active item, 1 <= qty <= onhand, resolve the badge, then
+   `_ledger_write(..., 'take', -quantity, ...)`. Error strings are shown
+   verbatim on the kiosk - write them for a person standing at a screen.
+2. `TouchKeypad.vue` - net-new, dumb 3x4 grid emitting digit/clear/backspace.
+3. `PartsKiosk.vue` + a top-level `/parts-kiosk` route registered beside
+   `/shopfloor` in `router/index.js` (NO requiresAuth, outside AppLayout,
+   `meta.plugin` so a disabled plugin dead-ends). Three steps - scan item,
+   scan badge, keypad quantity - driven by ONE hidden always-focused input
+   that consumes keyboard-wedge scans (scanners type the code + Enter) for
+   whichever step is active; manual type-in fallbacks for damaged labels.
+   Success screen auto-resets after a few seconds.
+4. Kiosk test: open access, over-take guard, unknown-badge 422, and
+   cache==ledger afterward.
+
+See it work: full walkthrough in a browser - type a code, badge in, keypad 2,
+TAKE - stock drops with your name in the ledger.
+
+Common error (by design): the full suite fails with
+`test_authz.py::test_mutation_rejects_roleless_member[printedparts.kiosk_take]`.
+That sweep asserts EVERY mutating route rejects a role-less user - the
+framework's net against accidentally-open writes. Your kiosk take is open on
+purpose, so add `printedparts.kiosk_take` to EXEMPT_ENDPOINTS with a comment
+pointing at the decision record. The net stays; the exception is explicit
+and reviewable.
+
+Commit + tag `lab-stage-07`.
+
+## Stage 8 - 1in x 0.5in bin labels
+
+1. `frontend/src/views/print/PrintedPartsLabels.vue` + a public
+   `/print/printedparts-labels` route beside `/print/usb-labels` (a plugin
+   OWNS its label page - the USB precedent; parts are not in the asset-label
+   TYPE_CONFIG because they are not assets).
+2. The label: CODE128 of the itemcode via JsBarcode
+   (`{format:'CODE128', displayValue:false, width:1.4, height:26, margin:0}`)
+   + the code text at ~6.5pt. A QR at 0.4in is at the edge of scanner
+   tolerance; CODE128 of `3DP-0042` is comfortable.
+3. Roll stock = one label per page: a global (unscoped) print style with
+   `@page { size: 1in 0.5in; margin: 0 }` and `page-break-after: always` on
+   each `.bin-label`. Multi-select + per-item copies; `?item=<id>`
+   preselects (the Detail page's Bin Label button).
+
+See it work: print preview shows one 1x0.5 label per page; scan the printed
+barcode (or the on-screen one with a phone scanner app) into the kiosk -
+label -> scan -> badge -> take -> ledger is the demo moment.
+
+Commit + tag `lab-stage-08`.
+
+## Stage 9 - reports + the reconcile check
+
+1. Three jwt-optional endpoints in the plugin blueprint, each honoring
+   `?format=csv` (local CSV helper - `generate_csv` is not on the contract
+   surface): `/reports/stock`, `/reports/consumption?days=N`,
+   `/reports/by-person?days=N`.
+2. The stock report's `ledgerdelta` column = cached quantityonhand minus the
+   ledger SUM per item. Always 0 for ledger-driven stock; nonzero flags a
+   write path that bypassed `_ledger_write` - your stage-3 hand-seeded rows
+   show up here, proving the check works.
+3. `get_reports` on the plugin (endpoint-style entries, categories
+   inventory/usage) - they merge into `GET /api/reports` and the /reports hub
+   while the plugin is enabled.
+
+Common error: MySQL `SUM()` returns Decimal; `int()` it or the JSON carries
+strings.
+
+Deferred by decision: `get_dashboard_widgets` (predates the ADR-010 data-only
+renderers; needs a core component) and a Settings card (needs a settings page
+to link). Reports are the monitoring surface.
+
+Commit + tag `lab-stage-09`.
+
+## Stage 10 - closeout
+
+1. Lifecycle: `flask plugin disable printedparts` - nav, reports, and
+   grantable permissions disappear; API routes only disappear after a
+   RESTART (blueprints register at startup - the guide's section 12 gotcha).
+   Re-enable.
+2. Fresh-database proof: scratch DATABASE_URL, `flask db upgrade` +
+   `flask plugin install/enable printedparts` + `upgrade-all` - green with
+   zero manual SQL.
 3. Full suite: backend pytest, vitest, frontend build, naming hook.
-4. End checklist from `PLUGIN-GUIDE.md` section 12.
+4. Walk `PLUGIN-GUIDE.md` section 12's End checklist.

 Done means: a colleague can clone the repo, enable the plugin, print a bin
 label, and take a part at the kiosk with their badge - without asking you
 anything.

+## Stage 11 (extension) - low-stock email alerts
+
+Per-item thresholds already exist; alerting on them is a worked example of a
+CONTRACT ADDITION, because the mailer was not on the plugin surface:
+1. Export `send_email`/`send_alert` from `shopdb/api/__init__.py`, bump
+   `__contract_version__` 0.11.0 -> 0.12.0, and update PLUGIN-HOOKS.md - the
+   docs-drift guard test fails until the doc's version example matches.
+   Manifest pins `core_version >=0.12.0` since the plugin now needs it.
+2. Fire the alert inside `_ledger_write` when a DECREMENT crosses the
+   threshold (before > threshold >= after). Crossing, not being-below, is the
+   natural debounce: one alert per depletion, restocking above rearms.
+   Best-effort try/except AFTER the commit - mail failure must never fail
+   the take.
+3. Recipients: Setting `printedparts_alert_email` (comma-separated), empty
+   falls back to the site's alert_recipients via `send_alert`. Seed the new
+   setting in on_enable too (idempotent) so already-installed sites get it.
+4. Test with a monkeypatched sender: no alert above threshold, one on the
+   crossing, no re-fire while below, rearm after restock (see
+   `test_lowstock_alert_fires_on_crossing_only`).
+
 ---

 ## Where each pattern lives (cheat sheet)
@@ -233,5 +322,6 @@ anything.
 | Barcode/QR rendering | JsBarcode usage in `AssetLabel.vue`, `qrLogo.js` |
 | Kiosk route posture | `/shopfloor` in `frontend/src/router/index.js` |
 | List/Detail master templates | `PrintersList.vue`, `PrinterDetail.vue` |
-| Reports hook + CSV | `plugins/warranty/` report + `shopdb/core/api/reports.py` |
+| Reports hook + CSV | `plugins/warranty/` + `shopdb/core/api/reports.py` |
 | Permissions declaration | `plugins/usb/plugin.py::get_permissions` |
+| The finished plugin itself | branch `feat/printedparts-plugin`, tags `lab-stage-01..10` |
--- a/docs/ROADMAP.md
+++ b/docs/ROADMAP.md
@@ -1,6 +1,6 @@
 # Roadmap

-shopdb-flask is at `__contract_version__ = '0.11.0'` (pre-1.0; product `__version__ 0.7.0`, tags through v0.7.0). This document captures what stands between today and a stable `1.0.0` release. Maintained as scope evolves; supersedes nothing in the ADRs.
+shopdb-flask is at `__contract_version__ = '0.12.0'` (pre-1.0; product `__version__ 0.7.0`, tags through v0.7.0). This document captures what stands between today and a stable `1.0.0` release. Maintained as scope evolves; supersedes nothing in the ADRs.

 ## Phase status

--- a/frontend/src/api/index.js
+++ b/frontend/src/api/index.js
@@ -1126,3 +1126,44 @@ export const measuringtoolsApi = {
    }
  }
 }
+
+// 3D printed parts (printedparts plugin)
+export const printedpartsApi = {
+  list(params = {}) {
+    return api.get('/printedparts/items', { params })
+  },
+  get(printeditemid) {
+    return api.get(`/printedparts/items/${printeditemid}`)
+  },
+  create(data) {
+    return api.post('/printedparts/items', data)
+  },
+  update(printeditemid, data) {
+    return api.put(`/printedparts/items/${printeditemid}`, data)
+  },
+  remove(printeditemid) {
+    return api.delete(`/printedparts/items/${printeditemid}`)
+  },
+  uploadImage(printeditemid, file) {
+    const formData = new FormData()
+    formData.append('file', file)
+    return api.post(`/printedparts/items/${printeditemid}/image`, formData, {
+      headers: { 'Content-Type': 'multipart/form-data' }
+    })
+  },
+  deleteImage(printeditemid) {
+    return api.delete(`/printedparts/items/${printeditemid}/image`)
+  },
+  restock(printeditemid, data) {
+    return api.post(`/printedparts/items/${printeditemid}/restock`, data)
+  },
+  adjust(printeditemid, data) {
+    return api.post(`/printedparts/items/${printeditemid}/adjust`, data)
+  },
+  kioskItem(itemcode) {
+    return api.get(`/printedparts/kiosk/item/${encodeURIComponent(itemcode)}`)
+  },
+  kioskTake(data) {
+    return api.post('/printedparts/kiosk/take', data)
+  }
+}
--- a/frontend/src/components/TouchKeypad.vue
+++ b/frontend/src/components/TouchKeypad.vue
@@ -0,0 +1,38 @@
+<template>
+  <div class="touch-keypad">
+    <button v-for="digit in digits" :key="digit" type="button"
+            class="keypad-button" @click="$emit('digit', digit)">
+      {{ digit }}
+    </button>
+    <button type="button" class="keypad-button keypad-muted"
+            @click="$emit('clear')">C</button>
+    <button type="button" class="keypad-button" @click="$emit('digit', '0')">0</button>
+    <button type="button" class="keypad-button keypad-muted"
+            @click="$emit('backspace')">&lt;</button>
+  </div>
+</template>
+
+<script setup>
+const digits = ['1', '2', '3', '4', '5', '6', '7', '8', '9']
+defineEmits(['digit', 'clear', 'backspace'])
+</script>
+
+<style scoped>
+.touch-keypad {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 0.6rem;
+  max-width: 20rem;
+}
+.keypad-button {
+  font-size: 1.8rem;
+  padding: 1rem 0;
+  border-radius: 0.5rem;
+  border: 1px solid var(--border);
+  background: var(--bg-card);
+  color: var(--text);
+  cursor: pointer;
+}
+.keypad-button:active { background: var(--primary); color: #fff; }
+.keypad-muted { color: var(--text-light); }
+</style>
--- a/frontend/src/router/index.js
+++ b/frontend/src/router/index.js
@@ -65,6 +65,14 @@ const routes = [
    name: 'shopfloor',
    component: () => import('../views/ShopfloorDashboard.vue')
  },
+  {
+    // Touch kiosk for taking 3D-printed parts: scan bin, scan badge, keypad.
+    // Open on purpose - see the decision record in the printedparts proposal.
+    path: '/parts-kiosk',
+    name: 'parts-kiosk',
+    component: () => import('../views/printedparts/PartsKiosk.vue'),
+    meta: { plugin: 'printedparts' }
+  },
  {
    path: '/tv',
    name: 'tv',
@@ -109,6 +117,12 @@ const routes = [
    component: () => import('../views/print/USBLabelBatch.vue'),
    meta: { plugin: 'usb' }
  },
+  {
+    path: '/print/printedparts-labels',
+    name: 'print-printedparts-labels',
+    component: () => import('../views/print/PrintedPartsLabels.vue'),
+    meta: { plugin: 'printedparts' }
+  },
  {
    path: '/',
    component: AppLayout,
--- a/frontend/src/router/routes/printedparts.js
+++ b/frontend/src/router/routes/printedparts.js
@@ -11,25 +11,25 @@ export default [
  {
    path: 'printedparts',
    name: 'printedparts',
-    component: () => import('../../views/printedparts/PrintedpartsList.vue'),
+    component: () => import('../../views/printedparts/PrintedItemsList.vue'),
    meta: { plugin: 'printedparts' }
  },
  {
    path: 'printedparts/new',
    name: 'printedparts-new',
-    component: () => import('../../views/printedparts/PrintedpartsForm.vue'),
+    component: () => import('../../views/printedparts/PrintedItemForm.vue'),
    meta: { requiresAuth: true, plugin: 'printedparts' }
  },
  {
    path: 'printedparts/:id',
    name: 'printedparts-detail',
-    component: () => import('../../views/printedparts/PrintedpartsDetail.vue'),
+    component: () => import('../../views/printedparts/PrintedItemDetail.vue'),
    meta: { plugin: 'printedparts' }
  },
  {
    path: 'printedparts/:id/edit',
    name: 'printedparts-edit',
-    component: () => import('../../views/printedparts/PrintedpartsForm.vue'),
+    component: () => import('../../views/printedparts/PrintedItemForm.vue'),
    meta: { requiresAuth: true, plugin: 'printedparts' }
  }
 ]
--- a/frontend/src/views/AppLayout.vue
+++ b/frontend/src/views/AppLayout.vue
@@ -101,7 +101,7 @@ import ToastHost from '../components/ToastHost.vue'
 import {
  Sun, Moon, LayoutDashboard, Calendar, Map, Cog, Monitor,
  Printer, Globe, Usb, AppWindow, BookOpen, BarChart3, Bell, Image, ShieldCheck, Ruler,
-  KeyRound, LogOut
+  Box, KeyRound, LogOut
 } from 'lucide-vue-next'
 import { useAuthStore } from '../stores/auth'
 import { currentTheme, toggleTheme } from '../stores/theme'
@@ -147,6 +147,7 @@ const iconMap = {
  'image': Image,
  'shield': ShieldCheck,
  'ruler': Ruler,
+  'box': Box,
 }

 // Default navigation (used as fallback if API fails)
--- a/frontend/src/views/print/PrintedPartsLabels.vue
+++ b/frontend/src/views/print/PrintedPartsLabels.vue
@@ -0,0 +1,207 @@
+<template>
+  <div>
+    <div class="no-print">
+      <div class="controls">
+        <h3>Print 3D Parts Bin Labels (1in x 0.5in)</h3>
+        <p>
+          Each label is one page on 1in x 0.5in roll stock: CODE128 barcode of
+          the item code, scannable at the parts kiosk.
+        </p>
+
+        <div v-if="loading" class="loading-msg">Loading parts...</div>
+        <div v-else-if="items.length === 0" class="loading-msg">No parts found</div>
+        <div v-else class="parts-grid">
+          <div
+            v-for="item in items"
+            :key="item.printeditemid"
+            class="part-item"
+            :class="{ selected: isSelected(item) }"
+            @click="toggleItem(item)"
+          >
+            <input type="checkbox" :checked="isSelected(item)" @click.stop />
+            <label>
+              <strong><code>{{ item.itemcode }}</code></strong>
+              <div class="alias">{{ item.itemname }}</div>
+            </label>
+          </div>
+        </div>
+
+        <div class="selected-count">
+          Selected: <span class="count">{{ selectedItems.length }}</span> labels
+          <label class="copies-label">Copies each:
+            <input v-model.number="copies" type="number" min="1" max="10" />
+          </label>
+        </div>
+
+        <button class="print-btn" :disabled="selectedItems.length === 0"
+                @click="print">Print Labels</button>
+        <button class="clear-btn" @click="selectedItems = []">Clear All</button>
+        <button class="select-all-btn" @click="selectedItems = [...items]">Select All</button>
+      </div>
+    </div>
+
+    <div class="labels-container">
+      <div v-for="(label, index) in printLabels" :key="index" class="bin-label">
+        <svg :ref="element => setBarcodeElement(element, index)" class="bin-barcode"></svg>
+        <div class="bin-code">{{ label.itemcode }}</div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, computed, onMounted, watch, nextTick } from 'vue'
+import JsBarcode from 'jsbarcode'
+import { printedpartsApi } from '../../api'
+
+const items = ref([])
+const selectedItems = ref([])
+const copies = ref(1)
+const loading = ref(true)
+const barcodeElements = ref({})
+
+onMounted(async () => {
+  try {
+    const response = await printedpartsApi.list({ perpage: 500 })
+    items.value = response.data.data || []
+    // ?item=<id> preselects one part (the Detail-page print button)
+    const preselect = new URLSearchParams(window.location.search).get('item')
+    if (preselect) {
+      const match = items.value.find(
+        candidate => String(candidate.printeditemid) === preselect)
+      if (match) selectedItems.value = [match]
+    }
+  } catch (error) {
+    console.error('Error loading parts:', error)
+  } finally {
+    loading.value = false
+  }
+})
+
+const printLabels = computed(() => {
+  const labels = []
+  for (const item of selectedItems.value) {
+    for (let copy = 0; copy < Math.max(1, copies.value); copy++) {
+      labels.push(item)
+    }
+  }
+  return labels
+})
+
+function isSelected(item) {
+  return selectedItems.value.some(
+    candidate => candidate.printeditemid === item.printeditemid)
+}
+
+function toggleItem(item) {
+  if (isSelected(item)) {
+    selectedItems.value = selectedItems.value.filter(
+      candidate => candidate.printeditemid !== item.printeditemid)
+  } else {
+    selectedItems.value = [...selectedItems.value, item]
+  }
+}
+
+function setBarcodeElement(element, index) {
+  if (element) barcodeElements.value[index] = element
+}
+
+watch(printLabels, async labels => {
+  await nextTick()
+  labels.forEach((label, index) => {
+    const element = barcodeElements.value[index]
+    if (element) {
+      // CODE128 of the short item code fits 1x0.5in with comfortable
+      // scanner tolerance; a QR at this size would be marginal.
+      JsBarcode(element, label.itemcode, {
+        format: 'CODE128',
+        displayValue: false,
+        width: 1.4,
+        height: 26,
+        margin: 0
+      })
+    }
+  })
+}, { deep: true })
+
+function print() {
+  window.print()
+}
+</script>
+
+<style scoped>
+.controls {
+  max-width: 46rem;
+  margin: 1rem auto;
+  padding: 1rem;
+  background: var(--bg-card);
+  border: 1px solid var(--border);
+  border-radius: 0.5rem;
+}
+.parts-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
+  gap: 0.5rem;
+  max-height: 20rem;
+  overflow-y: auto;
+  margin: 1rem 0;
+}
+.part-item {
+  display: flex;
+  gap: 0.5rem;
+  padding: 0.5rem;
+  border: 1px solid var(--border);
+  border-radius: 0.35rem;
+  cursor: pointer;
+}
+.part-item.selected { border-color: var(--primary); }
+.alias { color: var(--text-light); font-size: 0.85rem; }
+.selected-count { margin: 0.75rem 0; }
+.copies-label { margin-left: 1.25rem; }
+.copies-label input { width: 4rem; padding: 0.25rem; }
+.print-btn, .clear-btn, .select-all-btn {
+  margin-right: 0.5rem;
+  padding: 0.5rem 1rem;
+  cursor: pointer;
+}
+.loading-msg { color: var(--text-light); padding: 1rem; }
+
+/* screen preview of the labels */
+.labels-container { display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 1rem; }
+.bin-label {
+  width: 1in;
+  height: 0.5in;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  overflow: hidden;
+  background: #fff;
+  outline: 1px dashed #bbb;
+}
+.bin-barcode { width: 0.92in; height: 0.3in; }
+.bin-code {
+  font-size: 6.5pt;
+  font-family: monospace;
+  color: #000;
+  line-height: 1;
+}
+
+/* 1in x 0.5in roll stock: one label per page */
+@media print {
+  .no-print { display: none; }
+  .labels-container { display: block; padding: 0; gap: 0; }
+  .bin-label {
+    outline: none;
+    page-break-after: always;
+    break-after: page;
+  }
+}
+</style>
+
+<style>
+@media print {
+  @page { size: 1in 0.5in; margin: 0; }
+  body { margin: 0; }
+}
+</style>
--- a/frontend/src/views/printedparts/PartsKiosk.vue
+++ b/frontend/src/views/printedparts/PartsKiosk.vue
@@ -0,0 +1,242 @@
+<template>
+  <div class="parts-kiosk" @click="focusWedge">
+    <!-- keyboard-wedge scanners type the code + Enter into this hidden,
+         always-focused input; whichever step is active consumes the scan -->
+    <input ref="wedgeInput" v-model="wedgeBuffer" class="wedge-input"
+           autocomplete="off" @keydown.enter.prevent="onWedgeEnter" />
+
+    <header class="kiosk-header">
+      <h1>3D Printed Parts</h1>
+      <button v-if="step !== 'item'" class="btn btn-secondary" @click="reset">
+        Start over
+      </button>
+    </header>
+
+    <div v-if="error" class="kiosk-error">{{ error }}</div>
+
+    <!-- step 1: scan the bin -->
+    <section v-if="step === 'item'" class="kiosk-step">
+      <p class="kiosk-prompt">Scan the barcode on the bin</p>
+      <p class="kiosk-hint">
+        No scanner?
+        <a href="#" @click.prevent="manualEntry = !manualEntry">Type the code</a>
+      </p>
+      <div v-if="manualEntry" class="manual-row">
+        <input v-model="manualCode" class="form-control" placeholder="3DP-0001"
+               @keydown.enter="lookupItem(manualCode)" />
+        <button class="btn btn-primary" @click="lookupItem(manualCode)">Go</button>
+      </div>
+    </section>
+
+    <!-- step 2: badge -->
+    <section v-else-if="step === 'badge'" class="kiosk-step">
+      <div class="item-card">
+        <img v-if="item.imageurl" :src="withBase(item.imageurl)" class="item-photo" />
+        <div>
+          <h2>{{ item.itemname }}</h2>
+          <p class="kiosk-hint">{{ item.itemcode }} - {{ item.quantityonhand }} on hand</p>
+        </div>
+      </div>
+      <p class="kiosk-prompt">Scan your badge</p>
+      <div class="manual-row">
+        <input v-model="manualBadge" class="form-control" placeholder="or type your SSO"
+               @keydown.enter="acceptBadge(manualBadge)" />
+        <button class="btn btn-primary" @click="acceptBadge(manualBadge)">Next</button>
+      </div>
+    </section>
+
+    <!-- step 3: quantity -->
+    <section v-else-if="step === 'quantity'" class="kiosk-step">
+      <div class="item-card">
+        <img v-if="item.imageurl" :src="withBase(item.imageurl)" class="item-photo" />
+        <div>
+          <h2>{{ item.itemname }}</h2>
+          <p class="kiosk-hint">{{ item.quantityonhand }} on hand</p>
+        </div>
+      </div>
+      <p class="kiosk-prompt">How many are you taking?</p>
+      <div class="quantity-display">{{ quantity || '0' }}</div>
+      <TouchKeypad @digit="quantity += $event"
+                   @clear="quantity = ''"
+                   @backspace="quantity = quantity.slice(0, -1)" />
+      <button class="btn btn-primary take-button" :disabled="!quantity || submitting"
+              @click="submitTake">
+        {{ submitting ? 'Working...' : 'TAKE' }}
+      </button>
+    </section>
+
+    <!-- done -->
+    <section v-else-if="step === 'done'" class="kiosk-step">
+      <p class="kiosk-success">Done - {{ doneMessage }}</p>
+      <p class="kiosk-hint">Starting over in a few seconds...</p>
+    </section>
+  </div>
+</template>
+
+<script setup>
+import { ref, onMounted, onBeforeUnmount } from 'vue'
+import { printedpartsApi } from '../../api'
+import { withBase } from '../../utils/basePath'
+import TouchKeypad from '../../components/TouchKeypad.vue'
+
+const step = ref('item')
+const item = ref(null)
+const badge = ref('')
+const quantity = ref('')
+const error = ref('')
+const doneMessage = ref('')
+const submitting = ref(false)
+const manualEntry = ref(false)
+const manualCode = ref('')
+const manualBadge = ref('')
+const wedgeInput = ref(null)
+const wedgeBuffer = ref('')
+let resetTimer = null
+
+onMounted(focusWedge)
+onBeforeUnmount(() => clearTimeout(resetTimer))
+
+function focusWedge() {
+  wedgeInput.value?.focus()
+}
+
+function onWedgeEnter() {
+  const scanned = wedgeBuffer.value.trim()
+  wedgeBuffer.value = ''
+  if (!scanned) return
+  if (step.value === 'item') lookupItem(scanned)
+  else if (step.value === 'badge') acceptBadge(scanned)
+}
+
+async function lookupItem(itemcode) {
+  error.value = ''
+  if (!itemcode) return
+  try {
+    const response = await printedpartsApi.kioskItem(itemcode.trim())
+    item.value = response.data.data
+    step.value = 'badge'
+    manualEntry.value = false
+    manualCode.value = ''
+  } catch (lookupError) {
+    error.value = lookupError.response?.data?.data?.error?.message ||
+      'No part matches that barcode'
+  }
+  focusWedge()
+}
+
+function acceptBadge(value) {
+  error.value = ''
+  const scanned = (value || '').trim()
+  if (!scanned) return
+  badge.value = scanned
+  manualBadge.value = ''
+  step.value = 'quantity'
+  focusWedge()
+}
+
+async function submitTake() {
+  submitting.value = true
+  error.value = ''
+  try {
+    const response = await printedpartsApi.kioskTake({
+      itemcode: item.value.itemcode,
+      badge: badge.value,
+      quantity: parseInt(quantity.value, 10)
+    })
+    doneMessage.value = response.data.message
+    step.value = 'done'
+    resetTimer = setTimeout(reset, 4000)
+  } catch (takeError) {
+    error.value = takeError.response?.data?.data?.error?.message ||
+      'Could not complete - see the parts team'
+    if (takeError.response?.status === 422) {
+      // badge problem: go back a step so the next scan retries cleanly
+      step.value = 'badge'
+    }
+  } finally {
+    submitting.value = false
+  }
+}
+
+function reset() {
+  clearTimeout(resetTimer)
+  step.value = 'item'
+  item.value = null
+  badge.value = ''
+  quantity.value = ''
+  error.value = ''
+  doneMessage.value = ''
+  focusWedge()
+}
+</script>
+
+<style scoped>
+.parts-kiosk {
+  min-height: 100vh;
+  background: var(--bg);
+  color: var(--text);
+  padding: 2rem;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1.5rem;
+}
+.kiosk-header {
+  width: 100%;
+  max-width: 40rem;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+.wedge-input {
+  position: absolute;
+  opacity: 0;
+  height: 1px;
+  width: 1px;
+}
+.kiosk-step {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1.25rem;
+  max-width: 40rem;
+  width: 100%;
+}
+.kiosk-prompt { font-size: 1.6rem; font-weight: 600; }
+.kiosk-hint { color: var(--text-light); }
+.kiosk-error {
+  background: var(--danger);
+  color: #fff;
+  padding: 0.75rem 1.25rem;
+  border-radius: 0.5rem;
+}
+.kiosk-success { font-size: 1.6rem; color: var(--success); font-weight: 600; }
+.item-card {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  background: var(--bg-card);
+  border: 1px solid var(--border);
+  border-radius: 0.6rem;
+  padding: 1rem 1.5rem;
+  width: 100%;
+}
+.item-photo {
+  width: 5rem;
+  height: 5rem;
+  object-fit: cover;
+  border-radius: 0.4rem;
+}
+.quantity-display {
+  font-size: 3rem;
+  font-weight: 700;
+  min-width: 8rem;
+  text-align: center;
+  border-bottom: 3px solid var(--primary);
+}
+.take-button {
+  font-size: 1.5rem;
+  padding: 0.9rem 3.5rem;
+}
+.manual-row { display: flex; gap: 0.6rem; }
+</style>
--- a/frontend/src/views/printedparts/PrintedItemDetail.vue
+++ b/frontend/src/views/printedparts/PrintedItemDetail.vue
@@ -0,0 +1,210 @@
+<template>
+  <div class="detail-page">
+    <div v-if="loading" class="loading">Loading...</div>
+
+    <template v-else-if="item">
+      <div class="hero-card">
+        <img v-if="item.imageurl" :src="withBase(item.imageurl)"
+             :alt="item.itemname" class="hero-image" />
+        <div class="hero-content">
+          <h2 class="hero-title">{{ item.itemname }}</h2>
+          <div class="hero-meta">
+            <span class="badge badge-secondary">{{ item.itemcode }}</span>
+            <span :class="['badge', item.islowstock ? 'badge-danger' : 'badge-success']">
+              {{ item.quantityonhand }} on hand
+            </span>
+            <span v-if="item.islowstock" class="badge badge-warning">Low stock</span>
+          </div>
+          <div class="hero-details">
+            <p v-if="item.itemdescription">{{ item.itemdescription }}</p>
+          </div>
+          <div class="hero-actions">
+            <button class="btn btn-primary btn-sm" @click="openLedger('restock')">
+              Restock
+            </button>
+            <button class="btn btn-secondary btn-sm" @click="openLedger('adjust')">
+              Adjust
+            </button>
+            <router-link :to="`/printedparts/${item.printeditemid}/edit`"
+                         class="btn btn-secondary btn-sm">Edit</router-link>
+            <router-link :to="`/print/printedparts-labels?item=${item.printeditemid}`"
+                         class="btn btn-secondary btn-sm">Bin Label</router-link>
+          </div>
+        </div>
+      </div>
+
+      <div class="content-grid">
+        <div class="content-column">
+          <div class="section-card">
+            <h3 class="section-title">Details</h3>
+            <div class="info-list">
+              <div class="info-row">
+                <span class="info-label">Item code</span>
+                <span class="info-value">{{ item.itemcode }}</span>
+              </div>
+              <div class="info-row">
+                <span class="info-label">Bin location</span>
+                <span class="info-value">{{ item.binlocation || '-' }}</span>
+              </div>
+              <div class="info-row">
+                <span class="info-label">Quantity on hand</span>
+                <span class="info-value">{{ item.quantityonhand }}</span>
+              </div>
+              <div class="info-row">
+                <span class="info-label">Low-stock threshold</span>
+                <span class="info-value">{{ item.lowstockthreshold }}</span>
+              </div>
+              <div class="info-row" v-if="item.printnotes">
+                <span class="info-label">Print notes</span>
+                <span class="info-value">{{ item.printnotes }}</span>
+              </div>
+            </div>
+          </div>
+        </div>
+
+        <div class="content-column">
+          <div class="section-card">
+            <h3 class="section-title">Recent transactions</h3>
+            <div class="table-container">
+              <table>
+                <thead>
+                  <tr>
+                    <th>When</th>
+                    <th>Type</th>
+                    <th>Qty</th>
+                    <th>Who</th>
+                    <th>Reason</th>
+                  </tr>
+                </thead>
+                <tbody>
+                  <tr v-for="transaction in item.recenttransactions"
+                      :key="transaction.transactionid">
+                    <td>{{ formatDate(transaction.transactiondate) }}</td>
+                    <td>{{ transaction.transactiontype }}</td>
+                    <td :class="transaction.quantitychange < 0 ? 'qty-out' : 'qty-in'">
+                      {{ transaction.quantitychange > 0 ? '+' : '' }}{{ transaction.quantitychange }}
+                    </td>
+                    <td>{{ transaction.employeename || transaction.employeesso }}</td>
+                    <td>{{ transaction.reason || '-' }}</td>
+                  </tr>
+                  <tr v-if="!item.recenttransactions?.length">
+                    <td colspan="5" class="empty-state">No transactions yet</td>
+                  </tr>
+                </tbody>
+              </table>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <div class="audit-footer">
+        Created {{ formatDate(item.createddate) }} -
+        Modified {{ formatDate(item.modifieddate) }}
+      </div>
+    </template>
+
+    <div v-else class="card">Item not found</div>
+
+    <Modal v-model="ledgerOpen" :title="ledgerMode === 'restock' ? 'Restock' : 'Adjust count'">
+      <div v-if="ledgerError" class="error-message">{{ ledgerError }}</div>
+      <div class="form-group">
+        <label>{{ ledgerMode === 'restock' ? 'Quantity printed' : 'Change (+/-)' }}</label>
+        <input v-model.number="ledgerQuantity" type="number" class="form-control" />
+      </div>
+      <div v-if="ledgerMode === 'adjust'" class="form-group">
+        <label>Reason *</label>
+        <input v-model="ledgerReason" type="text" class="form-control"
+               placeholder="e.g., damaged parts scrapped, recount" />
+      </div>
+      <div class="form-group">
+        <label>Your badge / SSO *</label>
+        <input v-model="ledgerBadge" type="text" class="form-control"
+               placeholder="Scan badge or type SSO" />
+      </div>
+      <template #footer>
+        <button class="btn btn-primary" :disabled="ledgerSaving" @click="submitLedger">
+          {{ ledgerSaving ? 'Saving...' : 'Submit' }}
+        </button>
+        <button class="btn btn-secondary" @click="ledgerOpen = false">Cancel</button>
+      </template>
+    </Modal>
+  </div>
+</template>
+
+<script setup>
+import { ref, onMounted } from 'vue'
+import { useRoute } from 'vue-router'
+import { printedpartsApi } from '../../api'
+import { withBase } from '../../utils/basePath'
+import Modal from '../../components/Modal.vue'
+
+const route = useRoute()
+const item = ref(null)
+const loading = ref(true)
+
+onMounted(async () => {
+  try {
+    const response = await printedpartsApi.get(route.params.id)
+    item.value = response.data.data
+  } catch (loadError) {
+    console.error('Error loading printed item:', loadError)
+  } finally {
+    loading.value = false
+  }
+})
+
+const ledgerOpen = ref(false)
+const ledgerMode = ref('restock')
+const ledgerQuantity = ref(null)
+const ledgerReason = ref('')
+const ledgerBadge = ref('')
+const ledgerSaving = ref(false)
+const ledgerError = ref('')
+
+function openLedger(mode) {
+  ledgerMode.value = mode
+  ledgerQuantity.value = null
+  ledgerReason.value = ''
+  ledgerBadge.value = ''
+  ledgerError.value = ''
+  ledgerOpen.value = true
+}
+
+async function submitLedger() {
+  ledgerSaving.value = true
+  ledgerError.value = ''
+  try {
+    if (ledgerMode.value === 'restock') {
+      await printedpartsApi.restock(item.value.printeditemid, {
+        quantity: ledgerQuantity.value, badge: ledgerBadge.value
+      })
+    } else {
+      await printedpartsApi.adjust(item.value.printeditemid, {
+        quantitychange: ledgerQuantity.value,
+        reason: ledgerReason.value,
+        badge: ledgerBadge.value
+      })
+    }
+    ledgerOpen.value = false
+    const response = await printedpartsApi.get(item.value.printeditemid)
+    item.value = response.data.data
+  } catch (submitError) {
+    ledgerError.value =
+      submitError.response?.data?.data?.error?.message ||
+      submitError.response?.data?.error?.message || 'Submit failed'
+  } finally {
+    ledgerSaving.value = false
+  }
+}
+
+function formatDate(value) {
+  if (!value) return '-'
+  return new Date(value).toLocaleString()
+}
+</script>
+
+<style scoped>
+.hero-actions { margin-top: 0.75rem; }
+.qty-out { color: var(--danger); }
+.qty-in { color: var(--success); }
+</style>
--- a/frontend/src/views/printedparts/PrintedItemForm.vue
+++ b/frontend/src/views/printedparts/PrintedItemForm.vue
@@ -0,0 +1,170 @@
+<template>
+  <div>
+    <div class="page-header">
+      <h2>{{ isEdit ? 'Edit Part' : 'Add Part' }}</h2>
+    </div>
+
+    <div class="card form-card">
+      <div v-if="error" class="error-message">{{ error }}</div>
+
+      <form @submit.prevent="save">
+        <div class="form-row">
+          <div class="form-group">
+            <label>Name *</label>
+            <input v-model="form.itemname" type="text" class="form-control" required />
+          </div>
+          <div class="form-group">
+            <label>Bin location</label>
+            <input v-model="form.binlocation" type="text" class="form-control"
+                   placeholder="e.g., Bin A3" />
+          </div>
+        </div>
+
+        <div class="form-group">
+          <label>Description</label>
+          <input v-model="form.itemdescription" type="text" class="form-control"
+                 maxlength="500" placeholder="Brief description shown on the storefront" />
+        </div>
+
+        <div class="form-row">
+          <div class="form-group">
+            <label>Low-stock threshold</label>
+            <input v-model.number="form.lowstockthreshold" type="number" min="0"
+                   class="form-control" />
+          </div>
+          <div v-if="isEdit" class="form-group">
+            <label>Item code</label>
+            <input :value="itemcode" type="text" class="form-control" disabled />
+          </div>
+        </div>
+
+        <div class="form-group">
+          <label>Print notes</label>
+          <textarea v-model="form.printnotes" class="form-control" rows="3"
+                    placeholder="Material, print time, slicer file path"></textarea>
+        </div>
+
+        <div v-if="isEdit" class="form-group">
+          <label>Photo</label>
+          <div class="image-row">
+            <img v-if="imageurl" :src="withBase(imageurl)" class="image-preview" />
+            <input type="file" accept="image/*" @change="onImagePicked" />
+            <button v-if="imageurl" type="button" class="btn btn-secondary btn-sm"
+                    @click="removeImage">Remove photo</button>
+          </div>
+        </div>
+        <p v-else class="form-hint">Save first, then add a photo from the edit page.</p>
+
+        <div class="form-actions">
+          <button type="submit" class="btn btn-primary" :disabled="saving">
+            {{ saving ? 'Saving...' : 'Save' }}
+          </button>
+          <router-link :to="cancelTarget" class="btn btn-secondary">Cancel</router-link>
+        </div>
+      </form>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, computed, onMounted } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+import { printedpartsApi } from '../../api'
+import { withBase } from '../../utils/basePath'
+
+const route = useRoute()
+const router = useRouter()
+
+const isEdit = computed(() => !!route.params.id)
+const cancelTarget = computed(() =>
+  isEdit.value ? `/printedparts/${route.params.id}` : '/printedparts')
+
+const form = ref({
+  itemname: '',
+  itemdescription: '',
+  lowstockthreshold: null,
+  binlocation: '',
+  printnotes: ''
+})
+const itemcode = ref('')
+const imageurl = ref(null)
+const saving = ref(false)
+const error = ref('')
+
+onMounted(async () => {
+  if (!isEdit.value) return
+  try {
+    const response = await printedpartsApi.get(route.params.id)
+    const item = response.data.data
+    for (const key of Object.keys(form.value)) {
+      form.value[key] = item[key]
+    }
+    itemcode.value = item.itemcode
+    imageurl.value = item.imageurl
+  } catch (loadError) {
+    error.value = 'Could not load the item'
+    console.error(loadError)
+  }
+})
+
+async function save() {
+  saving.value = true
+  error.value = ''
+  try {
+    const payload = { ...form.value }
+    if (payload.lowstockthreshold === null || payload.lowstockthreshold === '') {
+      delete payload.lowstockthreshold
+    }
+    let printeditemid
+    if (isEdit.value) {
+      await printedpartsApi.update(route.params.id, payload)
+      printeditemid = route.params.id
+    } else {
+      const response = await printedpartsApi.create(payload)
+      printeditemid = response.data.data.printeditemid
+    }
+    router.push(`/printedparts/${printeditemid}`)
+  } catch (saveError) {
+    error.value = saveError.response?.data?.error?.message || 'Save failed'
+  } finally {
+    saving.value = false
+  }
+}
+
+async function onImagePicked(event) {
+  const file = event.target.files?.[0]
+  if (!file) return
+  try {
+    const response = await printedpartsApi.uploadImage(route.params.id, file)
+    imageurl.value = response.data.data.imageurl
+  } catch (uploadError) {
+    error.value = uploadError.response?.data?.error?.message || 'Image upload failed'
+  }
+}
+
+async function removeImage() {
+  try {
+    await printedpartsApi.deleteImage(route.params.id)
+    imageurl.value = null
+  } catch (deleteError) {
+    error.value = 'Could not remove the image'
+    console.error(deleteError)
+  }
+}
+</script>
+
+<style scoped>
+.image-row {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+}
+.image-preview {
+  width: 6rem;
+  height: 6rem;
+  object-fit: cover;
+  border-radius: 0.35rem;
+  border: 1px solid var(--border);
+}
+.form-hint { color: var(--text-light); }
+</style>
--- a/frontend/src/views/printedparts/PrintedItemsList.vue
+++ b/frontend/src/views/printedparts/PrintedItemsList.vue
@@ -0,0 +1,147 @@
+<template>
+  <div>
+    <div class="page-header">
+      <h2>3D Printed Parts</h2>
+      <div class="header-actions">
+        <router-link to="/print/printedparts-labels" class="btn btn-secondary">
+          Print Labels
+        </router-link>
+        <router-link to="/printedparts/new" class="btn btn-primary">Add Part</router-link>
+      </div>
+    </div>
+
+    <div class="filters">
+      <input
+        v-model="search"
+        type="text"
+        class="form-control"
+        placeholder="Search code, name, description, bin..."
+        @input="debouncedSearch"
+      />
+      <label class="lowstock-filter">
+        <input v-model="lowstockOnly" type="checkbox" @change="loadItems" />
+        Low stock only
+      </label>
+    </div>
+
+    <div class="card">
+      <div v-if="loading" class="loading">Loading...</div>
+
+      <template v-else>
+        <div class="table-container">
+          <table>
+            <thead>
+              <tr>
+                <th></th>
+                <th>Code</th>
+                <th>Name</th>
+                <th>Quantity</th>
+                <th>Bin</th>
+                <th>Description</th>
+              </tr>
+            </thead>
+            <tbody>
+              <tr
+                v-for="item in items"
+                :key="item.printeditemid"
+                class="clickable-row"
+                @click="$router.push(`/printedparts/${item.printeditemid}`)"
+              >
+                <td class="thumb-cell">
+                  <img
+                    v-if="item.imageurl"
+                    :src="withBase(item.imageurl)"
+                    :alt="item.itemname"
+                    class="item-thumb"
+                  />
+                </td>
+                <td>{{ item.itemcode || '-' }}</td>
+                <td>{{ item.itemname }}</td>
+                <td>
+                  <span :class="['badge', item.islowstock ? 'badge-danger' : 'badge-success']">
+                    {{ item.quantityonhand }}
+                  </span>
+                </td>
+                <td>{{ item.binlocation || '-' }}</td>
+                <td class="truncate-cell">{{ item.itemdescription || '-' }}</td>
+              </tr>
+              <tr v-if="items.length === 0">
+                <td colspan="6" class="empty-state">No printed parts found</td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+
+        <PaginationBar
+          :page="page"
+          :total-pages="totalPages"
+          @change="setPage"
+        />
+      </template>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, onMounted } from 'vue'
+import { printedpartsApi } from '../../api'
+import PaginationBar from '../../components/PaginationBar.vue'
+import { useListQuery } from '@/composables/listQuery'
+import { withBase } from '../../utils/basePath'
+
+const items = ref([])
+const loading = ref(true)
+const lowstockOnly = ref(false)
+const { page, search, setPage, setSearch } = useListQuery({ onChange: loadItems })
+const totalPages = ref(1)
+const perPage = ref(20)
+
+let searchTimeout = null
+
+onMounted(loadItems)
+
+async function loadItems() {
+  loading.value = true
+  try {
+    const params = { page: page.value, perpage: perPage.value }
+    if (search.value) params.search = search.value
+    if (lowstockOnly.value) params.lowstock = 'true'
+    const response = await printedpartsApi.list(params)
+    items.value = response.data.data || []
+    totalPages.value = response.data.meta?.pagination?.totalpages || 1
+  } catch (error) {
+    console.error('Error loading printed parts:', error)
+  } finally {
+    loading.value = false
+  }
+}
+
+function debouncedSearch() {
+  clearTimeout(searchTimeout)
+  searchTimeout = setTimeout(() => setSearch(search.value), 300)
+}
+</script>
+
+<style scoped>
+.item-thumb {
+  width: 2.2rem;
+  height: 2.2rem;
+  object-fit: cover;
+  border-radius: 0.25rem;
+}
+.thumb-cell { width: 3rem; }
+.truncate-cell {
+  max-width: 20rem;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.header-actions { display: flex; gap: 0.5rem; }
+.lowstock-filter {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.4rem;
+  color: var(--text-light);
+  cursor: pointer;
+}
+</style>
--- a/frontend/src/views/printedparts/PrintedpartsDetail.vue
+++ b/frontend/src/views/printedparts/PrintedpartsDetail.vue
@@ -1,149 +0,0 @@
-<template>
-  <div class="detail-page" v-if="item">
-    <div class="hero-card">
-      <div class="hero-content">
-        <div class="hero-title-row">
-          <h1 class="hero-title">{{ item.name || item.assetnumber || 'Printedparts' }}</h1>
-          <router-link
-            v-if="authStore.isAuthenticated"
-            :to="`/printedparts/${itemId}/edit`"
-            class="btn btn-secondary"
-          >
-            Edit
-          </router-link>
-        </div>
-        <div class="hero-details">
-          <div class="detail-item" v-if="item.assetnumber">
-            <span class="label">Asset #</span>
-            <span class="value">{{ item.assetnumber }}</span>
-          </div>
-          <div class="detail-item" v-if="item.serialnumber">
-            <span class="label">Serial</span>
-            <span class="value mono">{{ item.serialnumber }}</span>
-          </div>
-        </div>
-      </div>
-    </div>
-
-    <div class="content-grid">
-      <div class="content-column">
-        <div class="section-card">
-          <h3 class="section-title">Printedparts Information</h3>
-          <div class="info-list">
-            <div class="info-row">
-              <span class="info-label">Example Field</span>
-              <span class="info-value">{{ item.examplefield || '-' }}</span>
-            </div>
-          </div>
-        </div>
-      </div>
-
-      <div class="content-column">
-        <div class="section-card">
-          <h3 class="section-title">Asset Information</h3>
-          <div class="info-list">
-            <div class="info-row">
-              <span class="info-label">Asset Number</span>
-              <span class="info-value">{{ item.assetnumber || '-' }}</span>
-            </div>
-            <div class="info-row">
-              <span class="info-label">Name</span>
-              <span class="info-value">{{ item.name || '-' }}</span>
-            </div>
-            <div class="info-row">
-              <span class="info-label">Serial Number</span>
-              <span class="info-value mono">{{ item.serialnumber || '-' }}</span>
-            </div>
-          </div>
-        </div>
-      </div>
-    </div>
-
-    <div class="action-bar" v-if="authStore.isAuthenticated">
-      <router-link :to="`/printedparts/${itemId}/edit`" class="btn btn-primary">Edit</router-link>
-      <button @click="confirmDelete" class="btn btn-danger">Delete</button>
-    </div>
-  </div>
-
-  <div v-else-if="loading" class="loading-container">
-    <div class="loading">Loading...</div>
-  </div>
-
-  <div v-else class="error-container">
-    <p>Record not found</p>
-    <router-link to="/printedparts" class="btn btn-secondary">Back to Printedparts</router-link>
-  </div>
-</template>
-
-<script setup>
-import { ref, onMounted } from 'vue'
-import { useRoute, useRouter } from 'vue-router'
-import api from '../../api'
-import { useAuthStore } from '../../stores/auth'
-
-// local api client. move into src/api/index.js (see
-// plugins/printedparts/frontend-api-snippet.js) then swap for:
-//   import { printedpartsApi } from '../../api'
-const printedpartsApi = {
-  list(params = {}) { return api.get('/printedparts', { params }) },
-  get(itemId) { return api.get(`/printedparts/${itemId}`) },
-  create(data) { return api.post('/printedparts', data) },
-  update(itemId, data) { return api.put(`/printedparts/${itemId}`, data) },
-  remove(itemId) { return api.delete(`/printedparts/${itemId}`) }
-}
-
-const route = useRoute()
-const router = useRouter()
-const authStore = useAuthStore()
-
-const itemId = route.params.id
-const item = ref(null)
-const loading = ref(true)
-
-onMounted(loadItem)
-
-async function loadItem() {
-  loading.value = true
-  try {
-    const response = await printedpartsApi.get(itemId)
-    item.value = response.data.data
-  } catch (error) {
-    console.error('Error loading printedparts:', error)
-    item.value = null
-  } finally {
-    loading.value = false
-  }
-}
-
-async function confirmDelete() {
-  if (confirm('Delete this record?')) {
-    try {
-      await printedpartsApi.remove(itemId)
-      router.push('/printedparts')
-    } catch (error) {
-      console.error('Error deleting printedparts:', error)
-    }
-  }
-}
-</script>
-
-<style scoped>
-.mono {
-  font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
-}
-
-.action-bar {
-  display: flex;
-  gap: 1rem;
-  margin-top: 2rem;
-  padding-top: 1.5rem;
-  border-top: 1px solid var(--border);
-}
-
-.loading-container,
-.error-container {
-  text-align: center;
-  padding: 3rem;
-  color: var(--text-light);
-}
-</style>
--- a/frontend/src/views/printedparts/PrintedpartsForm.vue
+++ b/frontend/src/views/printedparts/PrintedpartsForm.vue
@@ -1,228 +0,0 @@
-<template>
-  <div>
-    <div class="page-header">
-      <h2>{{ isEdit ? 'Edit Printedparts' : 'Add Printedparts' }}</h2>
-    </div>
-
-    <div class="card form-card">
-      <form @submit.prevent="submitForm">
-        <fieldset>
-          <legend>Asset Information</legend>
-
-          <div class="form-row">
-            <div class="form-group">
-              <label for="assetnumber">Asset Number *</label>
-              <input
-                id="assetnumber"
-                v-model="form.assetnumber"
-                type="text"
-                class="form-control"
-                required
-                :disabled="isEdit"
-              />
-            </div>
-            <div class="form-group">
-              <label for="name">Name</label>
-              <input
-                id="name"
-                v-model="form.name"
-                type="text"
-                class="form-control"
-              />
-            </div>
-          </div>
-
-          <div class="form-row">
-            <div class="form-group">
-              <label for="serialnumber">Serial Number</label>
-              <input
-                id="serialnumber"
-                v-model="form.serialnumber"
-                type="text"
-                class="form-control"
-              />
-            </div>
-          </div>
-        </fieldset>
-
-        <fieldset>
-          <legend>Printedparts Details</legend>
-
-          <div class="form-row">
-            <div class="form-group">
-              <label for="examplefield">Example Field</label>
-              <input
-                id="examplefield"
-                v-model="form.examplefield"
-                type="text"
-                class="form-control"
-              />
-            </div>
-          </div>
-        </fieldset>
-
-        <div class="form-actions">
-          <button type="button" class="btn btn-secondary" @click="cancel">Cancel</button>
-          <button type="submit" class="btn btn-primary" :disabled="saving">
-            {{ saving ? 'Saving...' : (isEdit ? 'Save Changes' : 'Create') }}
-          </button>
-        </div>
-
-        <div v-if="error" class="error-message">{{ error }}</div>
-      </form>
-    </div>
-  </div>
-</template>
-
-<script setup>
-import { ref, computed, onMounted } from 'vue'
-import { useRoute, useRouter } from 'vue-router'
-import api from '../../api'
-
-// local api client. move into src/api/index.js (see
-// plugins/printedparts/frontend-api-snippet.js) then swap for:
-//   import { printedpartsApi } from '../../api'
-const printedpartsApi = {
-  list(params = {}) { return api.get('/printedparts', { params }) },
-  get(itemId) { return api.get(`/printedparts/${itemId}`) },
-  create(data) { return api.post('/printedparts', data) },
-  update(itemId, data) { return api.put(`/printedparts/${itemId}`, data) },
-  remove(itemId) { return api.delete(`/printedparts/${itemId}`) }
-}
-
-const route = useRoute()
-const router = useRouter()
-
-const itemId = route.params.id
-const isEdit = computed(() => !!itemId)
-
-const form = ref({
-  assetnumber: '',
-  name: '',
-  serialnumber: '',
-  examplefield: ''
-})
-const saving = ref(false)
-const error = ref('')
-
-onMounted(async () => {
-  if (isEdit.value) {
-    await loadItem()
-  }
-})
-
-async function loadItem() {
-  try {
-    const response = await printedpartsApi.get(itemId)
-    const data = response.data.data
-    form.value.assetnumber = data.assetnumber || ''
-    form.value.name = data.name || ''
-    form.value.serialnumber = data.serialnumber || ''
-    form.value.examplefield = data.examplefield || ''
-  } catch (loadError) {
-    console.error('Error loading printedparts:', loadError)
-    error.value = 'Failed to load record'
-  }
-}
-
-async function submitForm() {
-  saving.value = true
-  error.value = ''
-
-  try {
-    const payload = {
-      assetnumber: form.value.assetnumber,
-      name: form.value.name || null,
-      serialnumber: form.value.serialnumber || null,
-      examplefield: form.value.examplefield || null
-    }
-
-    let redirectId = itemId
-    if (isEdit.value) {
-      await printedpartsApi.update(itemId, payload)
-    } else {
-      const response = await printedpartsApi.create(payload)
-      redirectId = response.data.data?.assetid
-    }
-
-    router.push(redirectId ? `/printedparts/${redirectId}` : '/printedparts')
-  } catch (submitError) {
-    console.error('Error saving printedparts:', submitError)
-    error.value = 'Failed to save record'
-  } finally {
-    saving.value = false
-  }
-}
-
-function cancel() {
-  if (isEdit.value) {
-    router.push(`/printedparts/${itemId}`)
-  } else {
-    router.push('/printedparts')
-  }
-}
-</script>
-
-<style scoped>
-.form-card {
-  max-width: 800px;
-}
-
-fieldset {
-  border: 1px solid var(--border);
-  border-radius: 8px;
-  padding: 1.5rem;
-  margin-bottom: 1.5rem;
-}
-
-legend {
-  font-weight: 600;
-  padding: 0 0.5rem;
-  color: var(--text);
-}
-
-.form-row {
-  display: grid;
-  grid-template-columns: 1fr 1fr;
-  gap: 1rem;
-  margin-bottom: 1rem;
-}
-
-.form-row:last-child {
-  margin-bottom: 0;
-}
-
-.form-group {
-  display: flex;
-  flex-direction: column;
-}
-
-.form-group label {
-  margin-bottom: 0.375rem;
-  font-weight: 500;
-  color: var(--text);
-}
-
-.form-actions {
-  display: flex;
-  gap: 1rem;
-  justify-content: flex-end;
-  margin-top: 1.5rem;
-  padding-top: 1.5rem;
-  border-top: 1px solid var(--border);
-}
-
-.error-message {
-  margin-top: 1rem;
-  padding: 0.75rem 1rem;
-  background: var(--danger);
-  color: white;
-  border-radius: 6px;
-}
-
-@media (max-width: 600px) {
-  .form-row {
-    grid-template-columns: 1fr;
-  }
-}
-</style>
--- a/frontend/src/views/printedparts/PrintedpartsList.vue
+++ b/frontend/src/views/printedparts/PrintedpartsList.vue
@@ -1,142 +0,0 @@
-<template>
-  <div>
-    <div class="page-header">
-      <h2>Printedparts</h2>
-      <router-link to="/printedparts/new" class="btn btn-primary">Add Printedparts</router-link>
-    </div>
-
-    <div class="filters">
-      <input
-        v-model="search"
-        type="text"
-        class="form-control"
-        placeholder="Search..."
-        @input="debouncedSearch"
-      />
-    </div>
-
-    <div class="card">
-      <div v-if="loading" class="loading">Loading...</div>
-
-      <template v-else>
-        <div class="table-container">
-          <table>
-            <thead>
-              <tr>
-                <th>Asset Tag</th>
-                <th>Name</th>
-                <th>Example Field</th>
-                <th>Actions</th>
-              </tr>
-            </thead>
-            <tbody>
-              <tr v-for="item in items" :key="item.assetid">
-                <td>{{ item.assetnumber || '-' }}</td>
-                <td>{{ item.name || '-' }}</td>
-                <td>{{ item.examplefield || '-' }}</td>
-                <td class="actions">
-                  <router-link
-                    :to="`/printedparts/${item.assetid}`"
-                    class="btn btn-secondary btn-sm"
-                  >
-                    View
-                  </router-link>
-                </td>
-              </tr>
-              <tr v-if="items.length === 0">
-                <td colspan="4" style="text-align: center; color: var(--text-light);">
-                  No printedparts records found
-                </td>
-              </tr>
-            </tbody>
-          </table>
-        </div>
-
-        <PaginationBar
-          :page="page"
-          :totalPages="totalPages"
-          :perPage="perPage"
-          @update:page="goToPage"
-          @update:perPage="changePerPage"
-        />
-      </template>
-    </div>
-  </div>
-</template>
-
-<script setup>
-import { ref, onMounted } from 'vue'
-import api from '../../api'
-import PaginationBar from '../../components/PaginationBar.vue'
-
-// local api client. move into src/api/index.js (see
-// plugins/printedparts/frontend-api-snippet.js) then swap for:
-//   import { printedpartsApi } from '../../api'
-const printedpartsApi = {
-  list(params = {}) { return api.get('/printedparts', { params }) },
-  get(itemId) { return api.get(`/printedparts/${itemId}`) },
-  create(data) { return api.post('/printedparts', data) },
-  update(itemId, data) { return api.put(`/printedparts/${itemId}`, data) },
-  remove(itemId) { return api.delete(`/printedparts/${itemId}`) }
-}
-
-const items = ref([])
-const loading = ref(true)
-const search = ref('')
-const page = ref(1)
-const totalPages = ref(1)
-const perPage = ref(25)
-let searchTimeout = null
-
-onMounted(loadItems)
-
-async function loadItems() {
-  loading.value = true
-  try {
-    const params = { page: page.value, perpage: perPage.value }
-    if (search.value) params.search = search.value
-    const response = await printedpartsApi.list(params)
-    items.value = response.data.data || []
-    totalPages.value = response.data.meta?.pagination?.totalpages || 1
-  } catch (error) {
-    console.error('Error loading printedparts:', error)
-  } finally {
-    loading.value = false
-  }
-}
-
-function debouncedSearch() {
-  clearTimeout(searchTimeout)
-  searchTimeout = setTimeout(() => {
-    page.value = 1
-    loadItems()
-  }, 300)
-}
-
-function goToPage(target) {
-  if (target >= 1 && target <= totalPages.value) {
-    page.value = target
-    loadItems()
-  }
-}
-
-function changePerPage(newPerPage) {
-  perPage.value = newPerPage
-  page.value = 1
-  loadItems()
-}
-</script>
-
-<style scoped>
-.filters {
-  display: flex;
-  gap: 0.75rem;
-  margin-bottom: 1rem;
-  flex-wrap: wrap;
-}
-
-.filters .form-control {
-  flex: 1;
-  min-width: 150px;
-}
-</style>
--- a/plugins/printedparts/README.md
+++ b/plugins/printedparts/README.md
@@ -41,3 +41,19 @@ pytest plugins/printedparts/tests/
 - `docs/PLUGIN-QUICKSTART.md` - 30-minute walkthrough
 - `migrations/adr/ADR-001-asset-as-platform-contract.md` - the platform contract
 - `migrations/adr/ADR-002-plugin-versioning.md` - versioning rules
+
+## Why the kiosk take endpoint is unauthenticated
+
+`POST /api/printedparts/kiosk/take` is the product's first open WRITE (every
+other kiosk endpoint is a read). Accepted deliberately, against the criteria
+in docs/proposals/printedparts-plugin.md:
+
+1. Decrement-only: it can reduce stock of an active item, nothing else.
+2. Fully attributed: it refuses to act without a badge that resolves under
+   the site policy; every action lands in the ledger with SSO + name + time.
+3. Bounded blast radius: worst case is stock counts driven low - visible in
+   the ledger and reversible with an adjust.
+4. Physically rate-limited: it serves a touch screen on the shop floor;
+   nothing enumerable, nothing worth scraping.
+
+Any future open-write endpoint must clear the same bar.
--- a/plugins/printedparts/api/routes.py
+++ b/plugins/printedparts/api/routes.py
@@ -1,45 +1,493 @@
-"""Printedparts plugin API routes."""
+"""Printedparts plugin API routes.
+
+Reads are open (jwt optional) like every list surface; mutations arrive in
+later stages with permission gates. The kiosk endpoints (unauthenticated by
+explicit decision - see the proposal) also land later.
+"""

 from flask import Blueprint, request
 from flask_jwt_extended import jwt_required
+from sqlalchemy import or_

 from shopdb.api import (
+    db,
    success_response,
    error_response,
    paginated_response,
    ErrorCodes,
    get_pagination_params,
    paginate_query,
+    require_permission,
 )

-from ..models import Printedparts
-
+from ..models import PrintedItem

 printedparts_bp = Blueprint('printedparts', __name__)


-@printedparts_bp.route('', methods=['GET'])
+@printedparts_bp.route('/items', methods=['GET'])
@jwt_required(optional=True)
-def list_printedparts():
-    """List printedparts assets, paginated."""
+def list_items():
+    """List printed items, paginated; search + low-stock filter."""
    page, per_page = get_pagination_params(request)
-
-    query = Printedparts.query
+    query = PrintedItem.query
+    if request.args.get('active', 'true').lower() != 'false':
+        query = query.filter(PrintedItem.isactive == True)
+    if search := request.args.get('search'):
+        like = f'%{search}%'
+        query = query.filter(or_(
+            PrintedItem.itemcode.ilike(like),
+            PrintedItem.itemname.ilike(like),
+            PrintedItem.itemdescription.ilike(like),
+            PrintedItem.binlocation.ilike(like),
+        ))
+    if request.args.get('lowstock', '').lower() == 'true':
+        query = query.filter(
+            PrintedItem.quantityonhand <= PrintedItem.lowstockthreshold)
+    query = query.order_by(PrintedItem.itemname)
    items, total = paginate_query(query, page, per_page)
-    data = [item.to_dict() for item in items]
-
-    return paginated_response(data, page, per_page, total)
+    return paginated_response(
+        [item.to_dict() for item in items], page, per_page, total)


-@printedparts_bp.route('/<int:assetid>', methods=['GET'])
+@printedparts_bp.route('/items/<int:item_id>', methods=['GET'])
@jwt_required(optional=True)
-def get_printedparts(assetid: int):
-    """Get a single printedparts by assetid."""
-    item = Printedparts.query.get(assetid)
+def get_item(item_id: int):
+    """Get one printed item with its recent transactions."""
+    item = db.session.get(PrintedItem, item_id)
    if not item:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              f'Printed item {item_id} not found',
+                              http_code=404)
+    data = item.to_dict()
+    recent = (item.transactions
+              .order_by(db.desc('transactiondate'))
+              .limit(25).all())
+    data['recenttransactions'] = [t.to_dict() for t in recent]
+    return success_response(data)
+
+
+# --- catalog mutations (stage 6 adds permission gates on top of jwt) --------
+
+import glob
+import os
+
+from flask import current_app
+from werkzeug.utils import secure_filename
+
+from shopdb.api import Setting
+
+IMAGE_EXTENSIONS = {'.png', '.jpg', '.jpeg', '.gif', '.webp'}
+IMAGE_URL_PREFIX = '/api/printedparts/image/'
+
+EDITABLE_FIELDS = ('itemname', 'itemdescription', 'lowstockthreshold',
+                   'binlocation', 'printnotes')
+
+
+def _imagedir():
+    return os.path.join(current_app.instance_path, 'printedpartsimages')
+
+
+def _mint_itemcode(item):
+    """Set itemcode from the configured prefix + the flushed row id."""
+    prefix = Setting.get('printedparts_code_prefix') or '3DP'
+    item.itemcode = f'{prefix}-{item.printeditemid:04d}'
+
+
+@printedparts_bp.route('/items', methods=['POST'])
+@jwt_required()
+@require_permission('printedparts.create')
+def create_item():
+    """Create a printed item; the itemcode is minted from the row id."""
+    data = request.get_json() or {}
+    itemname = (data.get('itemname') or '').strip()
+    if not itemname:
+        return error_response(ErrorCodes.VALIDATION_ERROR, 'itemname is required')
+
+    threshold = data.get('lowstockthreshold')
+    if threshold is None:
+        threshold = int(Setting.get('printedparts_default_threshold') or 5)
+
+    item = PrintedItem(
+        itemname=itemname,
+        itemdescription=data.get('itemdescription'),
+        lowstockthreshold=threshold,
+        binlocation=data.get('binlocation'),
+        printnotes=data.get('printnotes'),
+        quantityonhand=0,
+    )
+    db.session.add(item)
+    db.session.flush()          # assigns printeditemid
+    _mint_itemcode(item)
+    db.session.commit()
+    return success_response(item.to_dict(), message='Printed item created',
+                            http_code=201)
+
+
+@printedparts_bp.route('/items/<int:item_id>', methods=['PUT'])
+@jwt_required()
+@require_permission('printedparts.edit')
+def update_item(item_id: int):
+    """Update catalog fields. Quantity moves ONLY through the ledger."""
+    item = db.session.get(PrintedItem, item_id)
+    if not item:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              f'Printed item {item_id} not found', http_code=404)
+    data = request.get_json() or {}
+    if 'quantityonhand' in data:
        return error_response(
-            ErrorCodes.NOT_FOUND,
-            f'Printedparts with assetid {assetid} not found',
-            http_code=404,
-        )
+            ErrorCodes.VALIDATION_ERROR,
+            'quantityonhand is ledger-managed; use restock or adjust')
+    for field in EDITABLE_FIELDS:
+        if field in data:
+            setattr(item, field, data[field])
+    db.session.commit()
+    return success_response(item.to_dict(), message='Printed item updated')
+
+
+@printedparts_bp.route('/items/<int:item_id>', methods=['DELETE'])
+@jwt_required()
+@require_permission('printedparts.delete')
+def delete_item(item_id: int):
+    """Soft-retire an item; its ledger history stays."""
+    item = db.session.get(PrintedItem, item_id)
+    if not item:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              f'Printed item {item_id} not found', http_code=404)
+    item.isactive = False
+    db.session.commit()
+    return success_response(message='Printed item retired')
+
+
+# --- item image: the models.py upload/serve/delete trio ---------------------
+
+@printedparts_bp.route('/items/<int:item_id>/image', methods=['POST'])
+@jwt_required()
+@require_permission('printedparts.edit')
+def upload_item_image(item_id: int):
+    """Upload (or replace) the photo for an item (multipart file=<image>)."""
+    item = db.session.get(PrintedItem, item_id)
+    if not item:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              f'Printed item {item_id} not found', http_code=404)
+    upload = request.files.get('file')
+    if not upload or not upload.filename:
+        return error_response(ErrorCodes.VALIDATION_ERROR, 'No file provided')
+    ext = os.path.splitext(upload.filename)[1].lower()
+    if ext not in IMAGE_EXTENSIONS:
+        return error_response(ErrorCodes.VALIDATION_ERROR,
+                              f'Unsupported image type {ext}')
+
+    imagedir = _imagedir()
+    os.makedirs(imagedir, exist_ok=True)
+    for old in glob.glob(os.path.join(
+            imagedir, secure_filename(f'printeditem-{item_id}') + '.*')):
+        os.remove(old)
+
+    filename = secure_filename(f'printeditem-{item_id}{ext}')
+    upload.save(os.path.join(imagedir, filename))
+    item.imageurl = f'{IMAGE_URL_PREFIX}{filename}'
+    db.session.commit()
+    return success_response(item.to_dict(), message='Item image uploaded')
+
+
+@printedparts_bp.route('/image/<path:filename>', methods=['GET'])
+def serve_item_image(filename):
+    """Serve an uploaded item image (public - kiosk and list read it)."""
+    from flask import send_from_directory
+    return send_from_directory(_imagedir(), filename)
+
+
+@printedparts_bp.route('/items/<int:item_id>/image', methods=['DELETE'])
+@jwt_required()
+@require_permission('printedparts.delete')
+def delete_item_image(item_id: int):
+    """Clear an item image; delete the file only if this plugin owns it."""
+    item = db.session.get(PrintedItem, item_id)
+    if not item:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              f'Printed item {item_id} not found', http_code=404)
+    url = item.imageurl or ''
+    if url.startswith(IMAGE_URL_PREFIX):
+        filename = secure_filename(url[len(IMAGE_URL_PREFIX):])
+        path = os.path.join(_imagedir(), filename)
+        if os.path.exists(path):
+            os.remove(path)
+    item.imageurl = None
+    db.session.commit()
+    return success_response(item.to_dict(), message='Item image removed')
+
+
+# --- the ledger: restock and adjust (stage 6 gates with printedparts.restock)
+
+from ..models import PrintedItemTransaction
+from ..services.badges import BadgeError, resolve_badge
+
+
+def _ledger_write(item, transactiontype, quantitychange, sso, name, reason=None):
+    """Append a ledger row and move the cached quantity in ONE commit.
+
+    The single-commit invariant is what keeps quantityonhand equal to the
+    ledger sum; every write path must go through here. Fires the low-stock
+    alert when this write CROSSES the item's threshold downward - crossing
+    (not being below) is the natural debounce: one alert per depletion, and
+    restocking above the threshold rearms it.
+    """
+    quantitybefore = item.quantityonhand
+    item.quantityonhand += quantitychange
+    db.session.add(PrintedItemTransaction(
+        printeditemid=item.printeditemid,
+        transactiontype=transactiontype,
+        quantitychange=quantitychange,
+        employeesso=sso,
+        employeename=name,
+        reason=reason,
+    ))
+    db.session.commit()
+    if (quantitychange < 0
+            and quantitybefore > item.lowstockthreshold
+            and item.quantityonhand <= item.lowstockthreshold):
+        _send_lowstock_alert(item)
+
+
+def _send_lowstock_alert(item):
+    """Best-effort email when an item crosses its low-stock threshold.
+
+    Recipients: Setting printedparts_alert_email (comma-separated), falling
+    back to the site's alert_recipients. Never fails the transaction - the
+    ledger write already committed."""
+    from shopdb.api import send_email, send_alert
+    subject = (f'Low stock: {item.itemname} ({item.itemcode}) - '
+               f'{item.quantityonhand} left')
+    html = (f'<p><strong>{item.itemname}</strong> ({item.itemcode}) is down '
+            f'to <strong>{item.quantityonhand}</strong> '
+            f'(threshold {item.lowstockthreshold}).</p>'
+            f'<p>Bin: {item.binlocation or "-"}</p>'
+            f'<p>Time to print more.</p>')
+    try:
+        recipients = (Setting.get('printedparts_alert_email') or '').strip()
+        if recipients:
+            send_email([address.strip() for address in recipients.split(',')
+                        if address.strip()], subject, html)
+        else:
+            send_alert(subject, html)
+    except Exception:
+        import logging
+        logging.getLogger(__name__).exception(
+            'Low-stock alert failed for %s', item.itemcode)
+
+
+@printedparts_bp.route('/items/<int:item_id>/restock', methods=['POST'])
+@jwt_required()
+@require_permission('printedparts.restock')
+def restock_item(item_id: int):
+    """Add freshly printed stock. Body: {quantity, badge}."""
+    item = db.session.get(PrintedItem, item_id)
+    if not item or not item.isactive:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              f'Printed item {item_id} not found', http_code=404)
+    data = request.get_json() or {}
+    quantity = data.get('quantity')
+    if not isinstance(quantity, int) or quantity < 1:
+        return error_response(ErrorCodes.VALIDATION_ERROR,
+                              'quantity must be a positive integer')
+    try:
+        sso, name = resolve_badge(data.get('badge'))
+    except BadgeError as badge_error:
+        return error_response(ErrorCodes.VALIDATION_ERROR, str(badge_error),
+                              http_code=422)
+    _ledger_write(item, 'restock', quantity, sso, name)
+    return success_response(item.to_dict(), message='Stock added')
+
+
+@printedparts_bp.route('/items/<int:item_id>/adjust', methods=['POST'])
+@jwt_required()
+@require_permission('printedparts.restock')
+def adjust_item(item_id: int):
+    """Correct the count (damage, recount). Body: {quantitychange, reason, badge}."""
+    item = db.session.get(PrintedItem, item_id)
+    if not item or not item.isactive:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              f'Printed item {item_id} not found', http_code=404)
+    data = request.get_json() or {}
+    quantitychange = data.get('quantitychange')
+    if not isinstance(quantitychange, int) or quantitychange == 0:
+        return error_response(ErrorCodes.VALIDATION_ERROR,
+                              'quantitychange must be a non-zero integer')
+    reason = (data.get('reason') or '').strip()
+    if not reason:
+        return error_response(ErrorCodes.VALIDATION_ERROR,
+                              'reason is required for an adjustment')
+    if item.quantityonhand + quantitychange < 0:
+        return error_response(
+            ErrorCodes.VALIDATION_ERROR,
+            f'Adjustment would drive stock below zero '
+            f'(on hand: {item.quantityonhand})')
+    try:
+        sso, name = resolve_badge(data.get('badge'))
+    except BadgeError as badge_error:
+        return error_response(ErrorCodes.VALIDATION_ERROR, str(badge_error),
+                              http_code=422)
+    _ledger_write(item, 'adjust', quantitychange, sso, name, reason=reason)
+    return success_response(item.to_dict(), message='Stock adjusted')
+
+
+# --- kiosk: UNauthenticated by decision record --------------------------------
+# The take endpoint is the product's first open WRITE. The proposal's decision
+# record sets the bar it must meet: decrement-only, badge-attributed, bounded,
+# physically rate-limited. It can reduce stock of an active item and nothing
+# else; identity comes from the badge resolved server-side, never the client.
+
+@printedparts_bp.route('/kiosk/item/<itemcode>', methods=['GET'])
+def kiosk_item(itemcode):
+    """Item summary for a scanned bin barcode (open read for the kiosk)."""
+    item = PrintedItem.query.filter(
+        PrintedItem.itemcode == itemcode.strip(),
+        PrintedItem.isactive == True).first()
+    if not item:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              'No part matches that barcode', http_code=404)
    return success_response(item.to_dict())
+
+
+@printedparts_bp.route('/kiosk/take', methods=['POST'])
+def kiosk_take():
+    """Take parts from a bin. Body: {itemcode, badge, quantity}."""
+    data = request.get_json() or {}
+
+    item = PrintedItem.query.filter(
+        PrintedItem.itemcode == (data.get('itemcode') or '').strip(),
+        PrintedItem.isactive == True).first()
+    if not item:
+        return error_response(ErrorCodes.NOT_FOUND,
+                              'No part matches that barcode', http_code=404)
+
+    quantity = data.get('quantity')
+    if not isinstance(quantity, int) or quantity < 1:
+        return error_response(ErrorCodes.VALIDATION_ERROR,
+                              'Enter how many you are taking')
+    if quantity > item.quantityonhand:
+        return error_response(
+            ErrorCodes.VALIDATION_ERROR,
+            f'Only {item.quantityonhand} on hand - take fewer or see the '
+            f'parts team')
+
+    try:
+        sso, name = resolve_badge(data.get('badge'))
+    except BadgeError as badge_error:
+        return error_response(ErrorCodes.VALIDATION_ERROR, str(badge_error),
+                              http_code=422)
+
+    _ledger_write(item, 'take', -quantity, sso, name)
+    return success_response(item.to_dict(),
+                            message=f'Took {quantity}, {item.quantityonhand} left')
+
+
+# --- reports (merged into GET /api/reports while the plugin is enabled) ------
+
+import csv
+import io
+
+from flask import Response
+from sqlalchemy import func
+
+
+def _csv_response(rows, columns, filename):
+    """CSV download; local helper because generate_csv is not on the
+    contract surface (shopdb.api)."""
+    output = io.StringIO()
+    writer = csv.writer(output)
+    writer.writerow(columns)
+    for row in rows:
+        writer.writerow([row.get(column, '') for column in columns])
+    return Response(
+        output.getvalue(), mimetype='text/csv',
+        headers={'Content-Disposition': f'attachment; filename={filename}'})
+
+
+@printedparts_bp.route('/reports/stock', methods=['GET'])
+@jwt_required(optional=True)
+def report_stock():
+    """Stock levels with low-stock flags and the cache-vs-ledger reconcile.
+
+    ledgerdelta should always be 0; anything else means a write path
+    bypassed the single-commit rule and needs finding.
+    """
+    # int() the sums: MySQL SUM returns Decimal, which JSON-serializes as a
+    # string and breaks the delta arithmetic's type.
+    ledger = {itemid: int(total) for itemid, total in
+              db.session.query(
+                  PrintedItemTransaction.printeditemid,
+                  func.coalesce(func.sum(PrintedItemTransaction.quantitychange), 0))
+              .group_by(PrintedItemTransaction.printeditemid).all()}
+    rows = []
+    for item in PrintedItem.query.filter_by(isactive=True).order_by(
+            PrintedItem.itemname).all():
+        rows.append({
+            'itemcode': item.itemcode,
+            'itemname': item.itemname,
+            'binlocation': item.binlocation or '',
+            'quantityonhand': item.quantityonhand,
+            'lowstockthreshold': item.lowstockthreshold,
+            'islowstock': item.islowstock,
+            'ledgerdelta': item.quantityonhand - ledger.get(item.printeditemid, 0),
+        })
+    columns = ['itemcode', 'itemname', 'binlocation', 'quantityonhand',
+               'lowstockthreshold', 'islowstock', 'ledgerdelta']
+    if request.args.get('format') == 'csv':
+        return _csv_response(rows, columns, 'printedparts-stock.csv')
+    return success_response({'columns': columns, 'rows': rows})
+
+
+@printedparts_bp.route('/reports/consumption', methods=['GET'])
+@jwt_required(optional=True)
+def report_consumption():
+    """Takes per item, optionally bounded by ?days=<n> (default 30)."""
+    days = request.args.get('days', 30, type=int)
+    query = (db.session.query(
+                PrintedItem.itemcode,
+                PrintedItem.itemname,
+                func.count(PrintedItemTransaction.transactionid),
+                func.coalesce(func.sum(-PrintedItemTransaction.quantitychange), 0))
+             .join(PrintedItemTransaction,
+                   PrintedItemTransaction.printeditemid == PrintedItem.printeditemid)
+             .filter(PrintedItemTransaction.transactiontype == 'take'))
+    if days > 0:
+        from datetime import datetime, timedelta, timezone
+        cutoff = datetime.now(timezone.utc).replace(tzinfo=None) - timedelta(days=days)
+        query = query.filter(PrintedItemTransaction.transactiondate >= cutoff)
+    query = query.group_by(PrintedItem.itemcode, PrintedItem.itemname)
+    rows = [{'itemcode': code, 'itemname': name, 'takes': takes,
+             'quantitytaken': int(taken)}
+            for code, name, takes, taken in query.all()]
+    rows.sort(key=lambda row: row['quantitytaken'], reverse=True)
+    columns = ['itemcode', 'itemname', 'takes', 'quantitytaken']
+    if request.args.get('format') == 'csv':
+        return _csv_response(rows, columns, 'printedparts-consumption.csv')
+    return success_response({'columns': columns, 'rows': rows, 'days': days})
+
+
+@printedparts_bp.route('/reports/by-person', methods=['GET'])
+@jwt_required(optional=True)
+def report_by_person():
+    """Takes grouped by employee, optionally bounded by ?days=<n> (default 30)."""
+    days = request.args.get('days', 30, type=int)
+    query = (db.session.query(
+                PrintedItemTransaction.employeesso,
+                func.max(PrintedItemTransaction.employeename),
+                func.count(PrintedItemTransaction.transactionid),
+                func.coalesce(func.sum(-PrintedItemTransaction.quantitychange), 0))
+             .filter(PrintedItemTransaction.transactiontype == 'take'))
+    if days > 0:
+        from datetime import datetime, timedelta, timezone
+        cutoff = datetime.now(timezone.utc).replace(tzinfo=None) - timedelta(days=days)
+        query = query.filter(PrintedItemTransaction.transactiondate >= cutoff)
+    query = query.group_by(PrintedItemTransaction.employeesso)
+    rows = [{'employeesso': sso, 'employeename': name or '', 'takes': takes,
+             'quantitytaken': int(taken)}
+            for sso, name, takes, taken in query.all()]
+    rows.sort(key=lambda row: row['quantitytaken'], reverse=True)
+    columns = ['employeesso', 'employeename', 'takes', 'quantitytaken']
+    if request.args.get('format') == 'csv':
+        return _csv_response(rows, columns, 'printedparts-by-person.csv')
+    return success_response({'columns': columns, 'rows': rows, 'days': days})
--- a/plugins/printedparts/manifest.json
+++ b/plugins/printedparts/manifest.json
@@ -5,7 +5,7 @@
    "display_name": "3D Printed Parts",
    "author": "",
    "dependencies": ["employees"],
-    "core_version": ">=0.11.0,<1.0.0",
+    "core_version": ">=0.12.0,<1.0.0",
    "api_prefix": "/api/printedparts",
    "default_enabled": false
 }
--- a/plugins/printedparts/migrations/env.py
+++ b/plugins/printedparts/migrations/env.py
@@ -0,0 +1,14 @@
+"""Alembic environment for the printedparts plugin migration chain.
+
+Delegates to the shared runner in shopdb.plugins.alembic_template, which
+filters the metadata to this plugin's tables and drives Alembic against the
+per-plugin version table alembic_version_printedparts (ADR-008). This plugin
+is NEW (post-cutover): its 0001 baseline really CREATES its tables.
+"""
+import os
+
+os.environ['PLUGIN_NAME'] = 'printedparts'
+
+from shopdb.plugins.alembic_template import run_migrations  # noqa: E402
+
+run_migrations()
--- a/plugins/printedparts/migrations/script.py.mako
+++ b/plugins/printedparts/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}
--- a/plugins/printedparts/migrations/versions/0001_printedparts_baseline.py
+++ b/plugins/printedparts/migrations/versions/0001_printedparts_baseline.py
@@ -0,0 +1,71 @@
+"""printedparts plugin baseline (real create).
+
+Post-ADR-008 plugin: this per-plugin chain is the sole authoritative creator
+of printeditems and printeditemtransactions - the core chain never knew them.
+Runs from `flask plugin install printedparts` (and `flask plugin upgrade-all`)
+after `flask db upgrade` builds the core schema.
+
+Both tables are self-contained (the only FK is transactions -> items inside
+the plugin), so the shared create_plugin_tables helper would work here; the
+ops are written out explicitly anyway to match the measuringtools exemplar
+and keep the baseline reviewable.
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'printedparts0001baseline'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        'printeditems',
+        sa.Column('printeditemid', sa.Integer(), nullable=False),
+        sa.Column('itemcode', sa.String(length=20), nullable=True),
+        sa.Column('itemname', sa.String(length=120), nullable=False),
+        sa.Column('itemdescription', sa.String(length=500), nullable=True),
+        sa.Column('imageurl', sa.String(length=255), nullable=True),
+        sa.Column('quantityonhand', sa.Integer(), nullable=False),
+        sa.Column('lowstockthreshold', sa.Integer(), nullable=False),
+        sa.Column('binlocation', sa.String(length=100), nullable=True),
+        sa.Column('printnotes', sa.Text(), nullable=True),
+        sa.Column('createddate', sa.DateTime(), nullable=False),
+        sa.Column('modifieddate', sa.DateTime(), nullable=False),
+        sa.Column('isactive', sa.Boolean(), nullable=False),
+        sa.PrimaryKeyConstraint('printeditemid'),
+        sa.UniqueConstraint('itemcode'),
+    )
+    op.create_index('ix_printeditems_itemcode', 'printeditems', ['itemcode'])
+
+    op.create_table(
+        'printeditemtransactions',
+        sa.Column('transactionid', sa.Integer(), nullable=False),
+        sa.Column('printeditemid', sa.Integer(), nullable=False),
+        sa.Column('transactiontype', sa.String(length=10), nullable=False),
+        sa.Column('quantitychange', sa.Integer(), nullable=False),
+        sa.Column('employeesso', sa.String(length=20), nullable=False),
+        sa.Column('employeename', sa.String(length=120), nullable=True),
+        sa.Column('reason', sa.String(length=255), nullable=True),
+        sa.Column('transactiondate', sa.DateTime(), nullable=False),
+        sa.Column('createddate', sa.DateTime(), nullable=False),
+        sa.Column('modifieddate', sa.DateTime(), nullable=False),
+        sa.Column('isactive', sa.Boolean(), nullable=False),
+        sa.ForeignKeyConstraint(['printeditemid'], ['printeditems.printeditemid'],
+                                ondelete='CASCADE'),
+        sa.PrimaryKeyConstraint('transactionid'),
+    )
+    op.create_index('ix_printeditemtransactions_printeditemid',
+                    'printeditemtransactions', ['printeditemid'])
+    op.create_index('ix_printeditemtransactions_employeesso',
+                    'printeditemtransactions', ['employeesso'])
+    op.create_index('ix_printeditemtransactions_transactiondate',
+                    'printeditemtransactions', ['transactiondate'])
+
+
+def downgrade():
+    op.drop_table('printeditemtransactions')
+    op.drop_table('printeditems')
--- a/plugins/printedparts/models/init.py
+++ b/plugins/printedparts/models/init.py
@@ -1,5 +1,5 @@
 """Printedparts plugin models."""

-from .printedparts import Printedparts
+from .printeditem import PrintedItem, PrintedItemTransaction, TRANSACTION_TYPES

-__all__ = ['Printedparts']
+__all__ = ['PrintedItem', 'PrintedItemTransaction', 'TRANSACTION_TYPES']
--- a/plugins/printedparts/models/printeditem.py
+++ b/plugins/printedparts/models/printeditem.py
@@ -0,0 +1,95 @@
+"""Printedparts models.
+
+PrintedItem is a KIND of 3D-printed part with a quantity on hand - a
+consumable, not an ADR-001 asset (which is one row per physical thing).
+PrintedItemTransaction is the ledger: every take, restock, and adjust as a
+signed quantity change attributed to a badge-resolved employee. The ledger is
+the source of truth; quantityonhand is a cache moved in the same commit as
+each ledger write, and the stock report reconciles the two.
+"""
+
+from datetime import datetime, timezone
+
+from shopdb.api import db, BaseModel
+
+
+def _utcnow():
+    return datetime.now(timezone.utc).replace(tzinfo=None)
+
+
+TRANSACTION_TYPES = ('take', 'restock', 'adjust')
+
+
+class PrintedItem(BaseModel):
+    """A printable part the engineers stock in bins."""
+
+    __tablename__ = 'printeditems'
+
+    printeditemid = db.Column(db.Integer, primary_key=True)
+    itemcode = db.Column(db.String(20), unique=True, index=True,
+                         comment='Generated bin-label code, e.g. 3DP-0042')
+    itemname = db.Column(db.String(120), nullable=False)
+    itemdescription = db.Column(db.String(500))
+    imageurl = db.Column(db.String(255))
+    quantityonhand = db.Column(db.Integer, nullable=False, default=0)
+    lowstockthreshold = db.Column(db.Integer, nullable=False, default=5)
+    binlocation = db.Column(db.String(100))
+    printnotes = db.Column(db.Text, comment='Material, print time, slicer file')
+
+    transactions = db.relationship(
+        'PrintedItemTransaction', backref='printeditem',
+        cascade='all, delete-orphan', passive_deletes=True, lazy='dynamic')
+
+    @property
+    def islowstock(self):
+        return self.quantityonhand <= self.lowstockthreshold
+
+    def to_dict(self):
+        return {
+            'printeditemid': self.printeditemid,
+            'itemcode': self.itemcode,
+            'itemname': self.itemname,
+            'itemdescription': self.itemdescription,
+            'imageurl': self.imageurl,
+            'quantityonhand': self.quantityonhand,
+            'lowstockthreshold': self.lowstockthreshold,
+            'islowstock': self.islowstock,
+            'binlocation': self.binlocation,
+            'printnotes': self.printnotes,
+            'isactive': self.isactive,
+            'createddate': self.createddate.isoformat() + 'Z' if self.createddate else None,
+            'modifieddate': self.modifieddate.isoformat() + 'Z' if self.modifieddate else None,
+        }
+
+
+class PrintedItemTransaction(BaseModel):
+    """One signed stock movement, always attributed to an employee."""
+
+    __tablename__ = 'printeditemtransactions'
+
+    transactionid = db.Column(db.Integer, primary_key=True)
+    printeditemid = db.Column(
+        db.Integer,
+        db.ForeignKey('printeditems.printeditemid', ondelete='CASCADE'),
+        nullable=False, index=True)
+    transactiontype = db.Column(db.String(10), nullable=False,
+                                comment='take, restock, or adjust')
+    quantitychange = db.Column(db.Integer, nullable=False,
+                               comment='Negative for take, signed for adjust')
+    employeesso = db.Column(db.String(20), nullable=False, index=True)
+    employeename = db.Column(db.String(120))
+    reason = db.Column(db.String(255))
+    transactiondate = db.Column(db.DateTime, nullable=False, default=_utcnow,
+                                index=True)
+
+    def to_dict(self):
+        return {
+            'transactionid': self.transactionid,
+            'printeditemid': self.printeditemid,
+            'transactiontype': self.transactiontype,
+            'quantitychange': self.quantitychange,
+            'employeesso': self.employeesso,
+            'employeename': self.employeename,
+            'reason': self.reason,
+            'transactiondate': self.transactiondate.isoformat() + 'Z' if self.transactiondate else None,
+        }
--- a/plugins/printedparts/models/printedparts.py
+++ b/plugins/printedparts/models/printedparts.py
@@ -1,32 +0,0 @@
-"""Printedparts model.
-
-This is an Asset extension table keyed by assetid. The Asset row holds
-the platform fields (assetnumber, name, vendorid, locationid, etc.);
-this table holds the printedparts-specific fields. Replace the example fields
-below with your domain model.
-"""
-
-from shopdb.api import db, BaseModel
-
-
-class Printedparts(BaseModel):
-    """Printedparts domain entity, extending Asset by assetid."""
-
-    __tablename__ = 'printedparts'
-
-    assetid = db.Column(
-        db.Integer,
-        db.ForeignKey('assets.assetid', ondelete='CASCADE'),
-        primary_key=True,
-    )
-
-    # TODO: replace these example fields with your domain fields.
-    examplefield = db.Column(db.String(255), nullable=True)
-
-    asset = db.relationship('Asset', backref=db.backref('printedparts', uselist=False))
-
-    def to_dict(self):
-        return {
-            'assetid': self.assetid,
-            'examplefield': self.examplefield,
-        }
--- a/plugins/printedparts/plugin.py
+++ b/plugins/printedparts/plugin.py
@@ -16,7 +16,7 @@ from flask import Flask, Blueprint
 from shopdb.plugins.base import BasePlugin, PluginMeta
 from shopdb.api import db, Setting

-from .models import Printedparts
+from .models import PrintedItem, PrintedItemTransaction
 from .api import printedparts_bp

 logger = logging.getLogger(__name__)
@@ -46,16 +46,69 @@ class PrintedpartsPlugin(BasePlugin):
        return printedparts_bp

    def get_models(self) -> List[Type]:
-        return [Printedparts]
+        return [PrintedItem, PrintedItemTransaction]

    def init_app(self, app: Flask, db_instance) -> None:
        logger.info(f'Printedparts plugin initialized (v{self.meta.version})')

+    def get_permissions(self) -> List:
+        """RBAC permissions this plugin owns (seeded on install/enable)."""
+        return [
+            ('printedparts.view', 'View 3D printed parts', 'printedparts'),
+            ('printedparts.create', 'Create printed parts', 'printedparts'),
+            ('printedparts.edit', 'Edit printed parts', 'printedparts'),
+            ('printedparts.delete', 'Retire printed parts', 'printedparts'),
+            ('printedparts.restock', 'Restock and adjust stock counts',
+             'printedparts'),
+        ]
+
+    def get_reports(self) -> List[dict]:
+        return [
+            {
+                'id': 'printedparts-stock',
+                'name': '3D Parts Stock',
+                'description': 'Stock levels with low-stock flags and the '
+                               'cache-vs-ledger reconcile check',
+                'category': 'inventory',
+                'endpoint': '/api/printedparts/reports/stock',
+            },
+            {
+                'id': 'printedparts-consumption',
+                'name': '3D Parts Consumption',
+                'description': 'Takes per item over a date range',
+                'category': 'usage',
+                'endpoint': '/api/printedparts/reports/consumption',
+            },
+            {
+                'id': 'printedparts-by-person',
+                'name': '3D Parts by Person',
+                'description': 'Takes grouped by employee',
+                'category': 'usage',
+                'endpoint': '/api/printedparts/reports/by-person',
+            },
+        ]
+
+    def get_navigation_items(self) -> List[dict]:
+        return [
+            {
+                'name': '3D Parts',
+                'icon': 'box',
+                'route': '/printedparts',
+                'position': 46,
+            },
+        ]
+
    def on_install(self, app: Flask) -> None:
        with app.app_context():
            self._seed_settings()
            logger.info('Printedparts plugin installed')

+    def on_enable(self, app: Flask) -> None:
+        # Idempotent re-seed so settings added in later versions reach sites
+        # that installed earlier (enable runs on every upgrade cycle).
+        with app.app_context():
+            self._seed_settings()
+
    def _seed_settings(self) -> None:
        defaults = [
            ('printedparts_code_prefix', '3DP', 'string',
@@ -64,6 +117,9 @@ class PrintedpartsPlugin(BasePlugin):
             'Default low-stock threshold for new items'),
            ('printedparts_unknown_badge', 'deny', 'string',
             'Kiosk policy when a badge resolves to no employee: allow or deny'),
+            ('printedparts_alert_email', '', 'string',
+             'Comma-separated low-stock alert recipients; empty uses the '
+             'site alert_recipients'),
        ]
        for key, value, valuetype, description in defaults:
            if Setting.get(key) is None:
--- a/plugins/printedparts/services/init.py
+++ b/plugins/printedparts/services/init.py
@@ -0,0 +1 @@
+"""Printedparts plugin services."""
--- a/plugins/printedparts/services/badges.py
+++ b/plugins/printedparts/services/badges.py
@@ -0,0 +1,69 @@
+"""Badge resolution for the printedparts plugin.
+
+Same input contract as the USB plugin (deliberately copied, not imported -
+cross-plugin imports break the shopdb.api-only contract):
+
+- all digits            -> an SSO typed or scanned directly
+- 0<digits>BZ           -> a physical badge wrapping a PayNo (keyboard-wedge
+                           scanners emit this shape)
+- anything else         -> unresolvable
+
+Names come from the employees plugin's self-hosted directory, looked up by
+SSO. The directory carries no PayNo column, so PayNo badges resolve only when
+the wrapped digits are themselves the SSO (true at sites whose badges encode
+the SSO); otherwise they fall to the unknown-badge policy.
+
+Policy (Setting printedparts_unknown_badge): 'deny' (default) rejects a badge
+with no directory match; 'allow' records the SSO with an empty name.
+"""
+
+import re
+
+from shopdb.api import Setting
+
+_PAYNO_BADGE = re.compile(r'^0(\d+)BZ$', re.IGNORECASE)
+
+
+class BadgeError(ValueError):
+    """Raised when a badge cannot be accepted under the site policy."""
+
+
+def _directory_name(sso):
+    """Best-effort display name from the employees plugin directory."""
+    try:
+        from plugins.employees.models import DirectoryEmployee
+        from shopdb.api import db
+        if sso and str(sso).isdigit():
+            employee = db.session.get(DirectoryEmployee, int(sso))
+            if employee:
+                return f'{employee.firstname} {employee.lastname}'.strip()
+    except Exception:
+        pass
+    return None
+
+
+def resolve_badge(badge):
+    """Return (sso, name) for a scanned badge, enforcing the site policy.
+
+    Raises BadgeError with a kiosk-displayable message when the badge shape is
+    unrecognized or the policy denies an unmatched badge.
+    """
+    badge = (badge or '').strip()
+    if not badge:
+        raise BadgeError('Scan or enter a badge')
+
+    if badge.isdigit():
+        sso = badge
+    else:
+        match = _PAYNO_BADGE.match(badge)
+        if not match:
+            raise BadgeError('Unrecognized badge format')
+        sso = match.group(1)
+
+    name = _directory_name(sso)
+    if name is None:
+        policy = (Setting.get('printedparts_unknown_badge') or 'deny').lower()
+        if policy != 'allow':
+            raise BadgeError('Badge not recognized - see the parts team')
+        return sso, ''
+    return sso, name
--- a/shopdb/init.py
+++ b/shopdb/init.py
@@ -36,7 +36,7 @@ from .plugins import plugin_manager
 # unattended endpoints (e.g. the GE-Enforce fetch API) can authorize a scoped
 # managed service token without importing core token internals. Additive name
 # on the import surface, minor bump.
-__contract_version__ = '0.11.0'
+__contract_version__ = '0.12.0'

 # Product release version (see ADR-007). The product version and the
 # plugin-contract version above are distinct series with independent
--- a/shopdb/api/init.py
+++ b/shopdb/api/init.py
@@ -78,6 +78,7 @@ from shopdb.core.services.dualpath import (

 # Legacy employee directory lookup (read-only) used by notifications
 from shopdb.utils.employee_db import employee_connection
+from shopdb.utils.mailer import send_email, send_alert

 # CMMC USB check-in/out database (read-write) used by the usb plugin
 from shopdb.utils.cmmc_usb_db import cmmc_usb_connection
@@ -266,6 +267,8 @@ __all__ = [
    'parse_import_datetime',
    # Legacy employee directory
    'employee_connection',
+    'send_email',
+    'send_alert',
    # CMMC USB check-in/out database
    'cmmc_usb_connection',
 ]
--- a/shopdb/plugins/alembic_template.py
+++ b/shopdb/plugins/alembic_template.py
@@ -53,6 +53,7 @@ PLUGIN_TABLE_OWNERS: dict[str, Iterable[str]] = {
    'measuringtools': ('measuringtooltypes', 'measuringtools'),
    'network':       ('networkdevicetypes', 'networkdevices', 'vlans', 'subnets'),
    'notifications': ('notificationtypes', 'notifications'),
+    'printedparts':  ('printeditems', 'printeditemtransactions'),
    'printers':      ('printertypes', 'printers', 'modelsupplies', 'printerdrivers'),
    'slides':        ('tvslides',),
    'usb':           ('usbdevicetypes', 'usbdevices', 'usbcheckouts'),
--- a/tests/test_core/test_authz.py
+++ b/tests/test_core/test_authz.py
@@ -45,7 +45,12 @@ EXEMPT_BLUEPRINTS = {'auth', 'collector', 'setup'}
 #     shape as the exempt collector blueprint; the geenforce admin endpoints in
 #     the same blueprint are JWT+permission gated and ARE swept.
 EXEMPT_ENDPOINTS = {'knowledgebase.track_click', 'users.update_user',
-                    'geenforce.post_report'}
+                    'geenforce.post_report',
+                    # Deliberately open kiosk write: decrement-only,
+                    # badge-attributed server-side. Decision record in
+                    # docs/proposals/printedparts-plugin.md; justification in
+                    # the plugin README.
+                    'printedparts.kiosk_take'}


@pytest.fixture(autouse=True)
--- a/tests/test_plugin_migrations.py
+++ b/tests/test_plugin_migrations.py
@@ -54,6 +54,8 @@ EXPECTED_HEAD_REVISION['machines'] = 'machines0002rename'
 EXPECTED_HEAD_REVISION['employees'] = 'employees0002photo'
 # usb drops the dead usbcheckouts.machineid column on top of its anchor.
 EXPECTED_HEAD_REVISION['usb'] = 'usb0002dropmachineid'
+# printedparts is post-cutover: its 0001 really creates its tables.
+EXPECTED_HEAD_REVISION['printedparts'] = 'printedparts0001baseline'
 # notifications indexes businessunitid on top of its anchor.
 EXPECTED_HEAD_REVISION['notifications'] = 'notifications0002buidx'

--- a/tests/test_plugins/test_printedparts_ledger.py
+++ b/tests/test_plugins/test_printedparts_ledger.py
@@ -0,0 +1,202 @@
+"""Printedparts ledger + badge tests.
+
+The invariants that make the plugin trustworthy: itemcode minting, the
+single-commit cache==ledger rule, the below-zero guard, quantity edits
+forced through the ledger, and the badge contract (SSO digits, PayNo
+wrap, unknown-badge policy).
+"""
+
+import pytest
+
+from shopdb.api import db
+from shopdb.core.models import Setting
+from plugins.printedparts.models import PrintedItem, PrintedItemTransaction
+
+
+@pytest.fixture
+def item(app, db):
+    with app.app_context():
+        row = PrintedItem(itemcode='3DP-9001', itemname='Test clip',
+                          quantityonhand=0, lowstockthreshold=5)
+        db.session.add(row)
+        db.session.commit()
+        yield row.printeditemid
+
+
+@pytest.fixture
+def directory_employee(app):
+    with app.app_context():
+        from plugins.employees.models import DirectoryEmployee
+        if not db.session.get(DirectoryEmployee, 502000001):
+            db.session.add(DirectoryEmployee(
+                sso=502000001, firstname='Pat', lastname='Printer'))
+            db.session.commit()
+    return '502000001'
+
+
+def test_create_mints_itemcode(client, auth_headers):
+    response = client.post('/api/printedparts/items', json={'itemname': 'Bracket'},
+                           headers=auth_headers)
+    assert response.status_code == 201
+    data = response.get_json()['data']
+    assert data['itemcode'] == f"3DP-{data['printeditemid']:04d}"
+    assert data['quantityonhand'] == 0
+
+
+def test_update_refuses_quantity(client, auth_headers, item):
+    response = client.put(f'/api/printedparts/items/{item}',
+                          json={'quantityonhand': 50}, headers=auth_headers)
+    assert response.status_code == 400
+
+
+def test_restock_writes_ledger_and_cache(client, auth_headers, app, item,
+                                         directory_employee):
+    response = client.post(f'/api/printedparts/items/{item}/restock',
+                           json={'quantity': 10, 'badge': directory_employee},
+                           headers=auth_headers)
+    assert response.status_code == 200
+    assert response.get_json()['data']['quantityonhand'] == 10
+    with app.app_context():
+        rows = PrintedItemTransaction.query.filter_by(printeditemid=item).all()
+        assert len(rows) == 1
+        assert rows[0].transactiontype == 'restock'
+        assert rows[0].quantitychange == 10
+        assert rows[0].employeename == 'Pat Printer'
+        cached = db.session.get(PrintedItem, item).quantityonhand
+        assert cached == sum(r.quantitychange for r in rows)
+
+
+def test_payno_badge_shape_resolves(client, auth_headers, item,
+                                    directory_employee):
+    response = client.post(f'/api/printedparts/items/{item}/restock',
+                           json={'quantity': 1,
+                                 'badge': f'0{directory_employee}BZ'},
+                           headers=auth_headers)
+    assert response.status_code == 200
+
+
+def test_adjust_requires_reason_and_floors_at_zero(client, auth_headers, item,
+                                                   directory_employee):
+    no_reason = client.post(f'/api/printedparts/items/{item}/adjust',
+                            json={'quantitychange': -1,
+                                  'badge': directory_employee},
+                            headers=auth_headers)
+    assert no_reason.status_code == 400
+
+    below_zero = client.post(f'/api/printedparts/items/{item}/adjust',
+                             json={'quantitychange': -1, 'reason': 'test',
+                                   'badge': directory_employee},
+                             headers=auth_headers)
+    assert below_zero.status_code == 400
+
+
+def test_unknown_badge_denied_then_allowed_by_policy(client, auth_headers, app,
+                                                     item):
+    denied = client.post(f'/api/printedparts/items/{item}/restock',
+                         json={'quantity': 1, 'badge': '999999999'},
+                         headers=auth_headers)
+    assert denied.status_code == 422
+
+    with app.app_context():
+        Setting.set('printedparts_unknown_badge', 'allow',
+                    valuetype='string', category='printedparts')
+        db.session.commit()
+    try:
+        allowed = client.post(f'/api/printedparts/items/{item}/restock',
+                              json={'quantity': 1, 'badge': '999999999'},
+                              headers=auth_headers)
+        assert allowed.status_code == 200
+        assert allowed.get_json()['data']['quantityonhand'] == 1
+    finally:
+        with app.app_context():
+            Setting.set('printedparts_unknown_badge', 'deny',
+                        valuetype='string', category='printedparts')
+            db.session.commit()
+
+
+def test_anonymous_cannot_mutate(client, item):
+    assert client.post('/api/printedparts/items',
+                       json={'itemname': 'X'}).status_code == 401
+    assert client.post(f'/api/printedparts/items/{item}/restock',
+                       json={'quantity': 1, 'badge': '1'}).status_code == 401
+
+
+def test_member_without_permission_gets_403(client, member_headers, item):
+    """Authentication alone is not authorization: a role-less user is denied."""
+    assert client.post('/api/printedparts/items', json={'itemname': 'X'},
+                       headers=member_headers).status_code == 403
+    assert client.post(f'/api/printedparts/items/{item}/restock',
+                       json={'quantity': 1, 'badge': '1'},
+                       headers=member_headers).status_code == 403
+
+
+def test_kiosk_take_is_open_decrement_only(client, auth_headers, app, item,
+                                           directory_employee):
+    """The kiosk endpoint needs no auth but only ever decrements stock."""
+    itemcode = '3DP-9001'
+    stocked = client.post(f'/api/printedparts/items/{item}/restock',
+                          json={'quantity': 5, 'badge': directory_employee},
+                          headers=auth_headers)
+    assert stocked.status_code == 200
+
+    lookup = client.get(f'/api/printedparts/kiosk/item/{itemcode}')
+    assert lookup.status_code == 200
+
+    take = client.post('/api/printedparts/kiosk/take', json={
+        'itemcode': itemcode, 'badge': directory_employee, 'quantity': 2})
+    assert take.status_code == 200, take.get_json()
+    assert take.get_json()['data']['quantityonhand'] == 3
+
+    too_many = client.post('/api/printedparts/kiosk/take', json={
+        'itemcode': itemcode, 'badge': directory_employee, 'quantity': 99})
+    assert too_many.status_code == 400
+
+    unknown = client.post('/api/printedparts/kiosk/take', json={
+        'itemcode': itemcode, 'badge': '111111111', 'quantity': 1})
+    assert unknown.status_code == 422
+
+    with app.app_context():
+        rows = PrintedItemTransaction.query.filter_by(
+            printeditemid=item, transactiontype='take').all()
+        assert len(rows) == 1
+        assert rows[0].quantitychange == -2
+        assert rows[0].employeename == 'Pat Printer'
+        cached = db.session.get(PrintedItem, item).quantityonhand
+        ledgersum = sum(r.quantitychange for r in
+                        PrintedItemTransaction.query.filter_by(
+                            printeditemid=item).all())
+        assert cached == ledgersum
+
+
+def test_lowstock_alert_fires_on_crossing_only(client, auth_headers, app, item,
+                                               directory_employee, monkeypatch):
+    """One alert when stock CROSSES the threshold downward; restocking above
+    rearms it; staying below does not re-fire."""
+    sent = []
+    import plugins.printedparts.api.routes as printedparts_routes
+    monkeypatch.setattr(
+        printedparts_routes, '_send_lowstock_alert',
+        lambda alerted_item: sent.append(alerted_item.itemcode))
+
+    def restock(quantity):
+        return client.post(f'/api/printedparts/items/{item}/restock',
+                           json={'quantity': quantity,
+                                 'badge': directory_employee},
+                           headers=auth_headers)
+
+    def take(quantity):
+        return client.post('/api/printedparts/kiosk/take',
+                           json={'itemcode': '3DP-9001',
+                                 'badge': directory_employee,
+                                 'quantity': quantity})
+
+    restock(10)                      # 10 on hand, threshold 5
+    assert take(3).status_code == 200   # 7: above threshold, no alert
+    assert sent == []
+    assert take(3).status_code == 200   # 4: CROSSES 5 -> one alert
+    assert sent == ['3DP-9001']
+    assert take(2).status_code == 200   # 2: still below, no re-fire
+    assert sent == ['3DP-9001']
+    restock(20)                          # 22: rearmed
+    assert take(18).status_code == 200  # 4: crosses again -> second alert
+    assert sent == ['3DP-9001', '3DP-9001']
Author	SHA1	Message	Date
cproudlock	df918ed38f	printedparts stage 11: low-stock email alerts on threshold crossing Some checks failed CI / backend (push) Successful in 1m43s Details CI / naming (push) Successful in 1s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details Contract 0.12.0: send_email/send_alert join the plugin surface (the mailer was core-only), PLUGIN-HOOKS and status docs updated, manifest pins the new floor. The alert fires inside _ledger_write only when a decrement CROSSES the item's threshold - one alert per depletion, rearmed by restocking above - and is best-effort after the commit so mail trouble can never fail a take. Recipients come from printedparts_alert_email, falling back to the site alert_recipients. on_enable re-seeds settings idempotently so existing installs pick up new keys. Crossing/rearm semantics proven by test.	2026-07-17 08:15:50 -04:00
cproudlock	fc0d48a6a7	printedparts stage 10: closeout - lab guide rewritten from the real build Some checks failed CI / backend (push) Successful in 1m42s Details CI / naming (push) Successful in 2s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details The lab is now a build-along mirroring what actually happened: ten stages, each with the goal, the divergences, a see-it-work check, and the errors genuinely hit while building (empty Migration error from a broken model import, the migration-guard KeyError, the missing Lucide icon, nested-app-context test writes, Decimal sums, and the authz sweep catching the deliberately open kiosk take). That last one gets its explicit EXEMPT_ENDPOINTS entry with a pointer to the decision record - the net stays, the exception is reviewable. Full suite: 993 backend tests, 49 vitest, frontend build, naming hook, all green.	2026-07-17 08:11:36 -04:00
cproudlock	b68e927ef6	printedparts stage 9: reports - stock w/ reconcile, consumption, by-person Some checks failed CI / backend (push) Failing after 1m42s Details CI / naming (push) Successful in 1s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details Three jwt-optional endpoints with ?format=csv, merged into the reports hub via get_reports while the plugin is enabled. The stock report's ledgerdelta column is the reconcile check: 0 for every item whose stock moved through the ledger, nonzero for anything that bypassed it (the hand-seeded dev rows demonstrate the catch). MySQL SUM returns Decimal - cast to int or the delta serializes as a string.	2026-07-17 08:04:09 -04:00
cproudlock	6439d1ccd9	printedparts stage 8: 1x0.5in bin labels Some checks failed CI / backend (push) Failing after 1m42s Details CI / naming (push) Successful in 1s Details CI / frontend (push) Successful in 7s Details CI / migrations-mysql (push) Failing after 7s Details New public print view at /print/printedparts-labels following the plugin-owned USB label precedent: multi-select with per-item copies, CODE128 of the item code via JsBarcode (a QR at this size is at the edge of scanner tolerance), one label per page on 1in x 0.5in roll stock via a new @page size. The Detail page's Bin Label button preselects its item through ?item=<id>; the list header gains a batch Print Labels button.	2026-07-17 08:00:35 -04:00
cproudlock	6ed3da1b64	printedparts stage 7: the kiosk - scan bin, scan badge, keypad, take Some checks failed CI / backend (push) Failing after 1m43s Details CI / naming (push) Successful in 2s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details Two open endpoints: an item lookup by scanned code and the take POST - the product's first unauthenticated write, held to the decision record's bar (decrement-only, badge-attributed server-side, bounded, physically rate-limited; justification in the plugin README). The /parts-kiosk route is a full-screen no-auth view beside /shopfloor: a hidden always-focused input consumes keyboard-wedge scans for whichever step is active, TouchKeypad (net-new 3x4 grid) takes the quantity, and a success screen resets after a few seconds. Manual type-in fallbacks cover damaged labels. Kiosk test proves open access, the over-take guard, the badge policy, and cache==ledger afterward.	2026-07-17 07:49:13 -04:00
cproudlock	d6a78a72ff	printedparts stage 6: RBAC - declared permissions gate every mutation Some checks failed CI / backend (push) Successful in 1m42s Details CI / naming (push) Successful in 1s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details get_permissions declares view/create/edit/delete/restock (seeded on install/enable and by flask seed permissions); every write route adds require_permission on top of jwt_required. New test proves authentication alone is not authorization: a role-less member gets 403 where an admin succeeds.	2026-07-17 07:42:07 -04:00
cproudlock	6dfc8906c4	printedparts stage 5: the ledger - restock/adjust with badge attribution Some checks failed CI / backend (push) Failing after 1m42s Details CI / naming (push) Successful in 1s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details Badge resolver copied from the USB contract (SSO digits, 0<digits>BZ PayNo wrap) with names from the employees directory and the unknown-badge policy setting; deliberately copied rather than cross-imported so the contract test stays green. Restock and adjust write the ledger row and move the cached quantity in one commit - the single-commit invariant every write path must use. Adjust requires a reason and refuses to drive stock below zero. Detail page gains Restock/Adjust modals. Seven tests cover minting, the cache==ledger invariant, badge shapes, policy toggle, and auth.	2026-07-17 07:41:18 -04:00
cproudlock	cb367a38f9	printedparts stage 4: catalog mutations, item photos, detail + form Some checks failed CI / backend (push) Failing after 1m40s Details CI / naming (push) Successful in 1s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details POST/PUT/DELETE for items: create mints the itemcode from the configured prefix plus the flushed row id, update refuses quantityonhand (ledger-managed - restock/adjust arrive next stage), delete soft-retires. The image upload/serve/delete trio replicates the models.py pattern into instance/printedpartsimages/ with a public GET. PrintedItemDetail follows the unified detail skeleton (hero photo, info list, transaction history table); PrintedItemForm covers create/edit plus photo management on edit.	2026-07-17 07:36:54 -04:00
cproudlock	d1c844d533	printedparts stage 3: read API + list page (first visible win) Some checks failed CI / backend (push) Successful in 1m39s Details CI / naming (push) Successful in 1s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details GET /items (paginated, search across code/name/description/bin, lowstock filter) and GET /items/<id> with recent transactions, both open reads. printedpartsApi client, router file repointed at the renamed views, PrintedItemsList with image thumbs and a red/green quantity badge against the per-item threshold. Nav entry '3D Parts' with a new 'box' Lucide icon mapping (the sidebar renders nothing for unknown icon names - lab gotcha).	2026-07-16 17:10:42 -04:00
cproudlock	f5cfac33b4	printedparts stage 2: models, real 0001 baseline, tables live Some checks failed CI / backend (push) Successful in 1m39s Details CI / naming (push) Successful in 2s Details CI / frontend (push) Successful in 8s Details CI / migrations-mysql (push) Failing after 8s Details PrintedItem (catalog: code, name, image, cached quantityonhand, per-item threshold, bin) and PrintedItemTransaction (the ledger: signed quantity change attributed to a badge-resolved employee). Both registered in PLUGIN_TABLE_OWNERS; 0001 is a post-cutover real baseline. The migration-guard test learns the new expected head. Routes are a placeholder ping until the next stage - the scaffold's list route imported the deleted scaffold model, which surfaces as an empty 'Migration error' because the alembic env imports the models package.	2026-07-16 16:57:21 -04:00