plate ui changelog entrypoint

Objective: Implement Plate UI changelog as a human and agent entrypoint; done when /docs/components/changelog renders generated changelog events, public /registry/changelog index/component/event JSON routes work, latest-10 output still has 3 events and 10 entries, and focused checks pass.

Completion threshold:

• content/docs/components/changelog.mdx uses a generated renderer instead of hand-written changelog prose.
• The generator writes event JSON plus index.json and components.json.
• Public JSON routes serve: /registry/changelog/index.json, /registry/changelog/components.json, and /registry/changelog/{event}.json.
• The docs page includes a human section and an agent section with npx skills add sync-plate-ui and raw JSON links.
• The latest-10 trial still produces 3 events and 10 row entries.
• Focused tests, docs source generation, lint, route/browser proof, and the autogoal checker pass.

Verification surface:

• bun test tooling/scripts/generate-ui-changelog-entries.test.mjs
• pnpm --filter www exec bun test src/app/registry/changelog/index.json/route.test.ts src/app/registry/changelog/components.json/route.test.ts 'src/app/registry/changelog/[event]/route.test.ts'
• node tooling/scripts/generate-ui-changelog-entries.mjs --limit 10 --write
• node tooling/scripts/generate-ui-changelog-entries.mjs --limit 10
• Structural audit over apps/www/src/registry/changelog
• pnpm --filter www build:source
• pnpm lint:fix
• Browser proof for /docs/components/changelog and public JSON routes when a dev server can run.
• node .agents/skills/autogoal/scripts/check-complete.mjs docs/plans/2026-06-03-plate-ui-changelog-entrypoint.md

Constraints:

• Keep /docs/releases as package-release territory.
• Keep /api/registry-source/[name] internal docs hydration; use explicit public /registry/changelog routes for this contract.
• Do not run build:registry.
• Do not commit, push, or create a PR.
• Do not rerun autoreview unless explicitly requested; the user stopped it.
• Do not flatten shadcn sync policy into this component-changelog work.

Boundaries:

• Expected changes: tooling/scripts/generate-ui-changelog-entries.mjs, tooling/scripts/generate-ui-changelog-entries.test.mjs, apps/www/src/registry/changelog/*.json, apps/www/src/lib/registry-changelog.ts, apps/www/src/components/plate-ui-changelog.tsx, apps/www/src/app/registry/changelog/**, apps/www/src/components/mdx-components.tsx, content/docs/components/changelog.mdx, content/docs/meta.json.
• Non-goals: formal external JSON Schema, full-history generation, CI release wiring, sync-plate-ui implementation, and downstream merge application.

Blocked condition: None currently. The repo has enough generated data, docs routing, and route patterns to implement the slice.

Start Gates:

Gate	Applies	Evidence
Skill analysis before edits	yes	Used task, autogoal, and docs-creator; inspected sync-shadcn because it is the comparison source.
Active goal checked or created	yes	Active goal created for the changelog entrypoint.
Source of truth read before edits	yes	Read existing changelog MDX, generated JSON, release page structure, MDX component map, route patterns, shadcn changelog page, and sync-shadcn status/plan artifacts.
User requirements extracted	yes	Requirements listed in this plan's threshold and constraints.
Tracker comments and attachments read	no	N/A: no tracker.
Video transcript evidence required	no	N/A: no video.
TDD decision before behavior change	yes	Add generator/index tests and JSON route tests; browser proof for rendered docs.
Branch decision for code-changing task	yes	No branch change; user did not request commit or PR.
Release artifact decision	yes	N/A: generated metadata only, no package release artifact.
Browser tool decision for browser surface	yes	Browser proof required because docs UI changes.
PR expectation decision	no	N/A: no PR requested.

Work Checklist:

• Generator writes index.json.
• Generator writes components.json.
• Public JSON loader and routes are implemented.
• JSON route tests are added.
• Docs renderer is implemented.
• MDX changelog page uses renderer.
• Metadata/nav title updated to Plate UI Changelog.
• Latest-10 artifacts regenerated.
• Focused tests pass.
• Docs source generation passes.
• Lint passes.
• Browser proof recorded or blocked honestly.
• Autogoal checker passes.

Completion Gates:

Gate	Applies	Evidence
Named verification threshold	yes	Latest-10 generation writes 3 event JSON files, 10 row entries, index.json, and components.json; HTTP proof shows rendered docs and public JSON routes.
Bug reproduced before fix	no	N/A: feature implementation, not bug reproduction.
Targeted behavior verification	yes	Generator tests, route tests, generator dry run, structural audit, and HTTP proof all passed.
TypeScript or typed config changed	yes	pnpm --filter www typecheck passed after lint formatting.
Package exports or file layout changed	no	N/A: no package exports or barrels.
Package manifests, lockfile, or install graph changed	no	N/A: no install graph changes.
Agent rules or skills changed	no	N/A: no skill implementation in this slice.
Workspace authority proof	yes	Commands run in /Users/zbeyens/git/plate.
Browser surface changed	yes	HTTP proof passed for /docs/components/changelog and JSON routes on localhost:3004; Browser automation blocked because the exposed tool surface only had Node REPL and the Playwright fallback lacked its local browser binary.
CI-controlled template output changed	no	N/A: no templates.
Package behavior or public API changed	no	N/A: app public JSON route, not package API.
Registry-only component work changed	yes	Generated registry changelog artifacts and docs renderer.
Docs or content changed	yes	MDX source generation and docs source parity passed through pnpm --filter www typecheck; HTTP proof confirmed the hidden internal source text is not rendered.
High-risk mini gate	yes	Risk: public route contract drift; proof covers route JSON and visible docs links.
Agent-native review for agent/tooling changes	no	N/A: references a skill command but does not edit agent tooling.
Local install corruption suspected	no	N/A unless verification shows env-rot signals.
Autoreview for non-trivial implementation changes	no	Skipped because user stopped autoreview.
PR create or update	no	N/A: no PR requested.
Tracker sync-back	no	N/A: no tracker.
Final handoff contract	yes	Pending final response with paths and proof.
Final lint	yes	Pending final pnpm lint:fix.
Goal plan complete	yes	Pending checker.

Phase / pass table:

Phase	Status	Evidence	Next
Source audit	complete	Existing docs/router/generator/shadcn references read.	done
Implementation	complete	Generator, public JSON routes, docs renderer, MDX wiring, nav title, and latest-10 JSON artifacts implemented.	done
Verification	complete	Generator tests, route tests, generator dry run, structural audit, typecheck, and final lint passed.	done
Browser proof	complete	HTTP proof passed; Browser automation blocker recorded.	done
Closeout	complete	Goal plan updated for checker and final handoff.	done

Verification evidence:

• node tooling/scripts/generate-ui-changelog-entries.mjs --limit 10 --write: wrote 3 event files plus index.json and components.json.
• Structural audit over apps/www/src/registry/changelog: 3 events, 10 row entries, 15 component keys, PRs 4989/4987/4941, releases unreleased/v53.0.7/v53.0.0, no old top-level pr/commit/provenance/warnings fields.
• bun test tooling/scripts/generate-ui-changelog-entries.test.mjs: 7 pass, 0 fail.
• pnpm --filter www exec bun test src/app/registry/changelog/index.json/route.test.ts src/app/registry/changelog/components.json/route.test.ts 'src/app/registry/changelog/[event]/route.test.ts': 5 pass, 0 fail.
• pnpm --filter www typecheck: passed after build:source, docs source parity, registry source check, and TypeScript checks.
• pnpm lint:fix: final pass checked 3254 files with no fixes applied.
• node tooling/scripts/generate-ui-changelog-entries.mjs --limit 10: would write 3 registry changelog events from 10 source rows.
• HTTP proof on http://localhost:3004/docs/components/changelog: 200, title present, npx skills add sync-plate-ui present, latest event present, internal source text absent.
• HTTP proof on http://localhost:3004/registry/changelog/index.json, components.json, and latest event JSON: 3 events, 15 component keys, latest PR 4989, latest release unreleased.
• Browser automation: blocked because tool discovery exposed Node REPL only, and Playwright fallback failed earlier with missing local Chromium executable.
• node .agents/skills/autogoal/scripts/check-complete.mjs docs/plans/2026-06-03-plate-ui-changelog-entrypoint.md: [autogoal] complete.

Open risks:

• Formal JSON Schema remains future work.
• sync-plate-ui itself is not implemented in this slice.
• Full-history generation may need more provenance cleanup.

Reboot status:

Question	Answer
Active goal	Plate UI changelog human and agent entrypoint.
Current state	Implementation and verification complete.
Next command	Run autogoal checker, then close the active goal.