Cold adversarial review found two false factual claims written into the new decision records by the change whose whole purpose is to make such records authoritative. Both are corrected; the code was sound. 1. The Id exemption. Its written reason was "the PUT replaces the item set, so B's rows are new rows with new ids". The request forwards each Id, so the handler takes its id-based reconcile path and updates rows in place. Removing the exemption leaves the test green, so Id is now compared and the exemption set is empty. The inherited "ignoring regenerated row ids" comment above the round trip said the same false thing and is corrected too. The reviewer's proposed replacement rationale — that comparing Id now pins #252's id-preservation invariant — is ALSO an overclaim, and the check is cheap: replacing the forwarded r.Id with null, which sends the handler down the create-new-rows path, leaves this test GREEN, because a fresh database reassigns the same ids once the old rows are deleted. Measured, not assumed. The comment now says what the assertion does not establish, and points at ReplaceProgramScheduleItemsReconcileTests, which does pin it. 2. The second clause's negative — "no persisted child state is keyed to those item ids" — is false. PlayoutItem.SchedulingContext serializes a BlockSchedulingContext carrying BlockItemId, and its consumer falls back to (id, null, null) once ReplaceBlockItemsHandler renumbers those ids, so the troubleshooting view silently loses collection type and name. GuideGroup is set to TemplateItemId and persisted while ReplaceTemplateItemsHandler renumbers it. Restated narrowly and dated: no PROGRESSION state is keyed to those ids; two diagnostic/grouping fields are, and are orphaned. Degradation, not data loss. Also from the review: - the anti-vacuity check is a PIN (ShouldBe(55)) rather than a >= floor, which was the one-sided version of the both-directions rule the record invokes; its message interpolates the expectation instead of a stale literal - the record now states that a complete COMPARER is not a complete FIXTURE: the seed builder is still hand-written, so a new nullable field is compared null-against-null until someone seeds it - ProviderWith appends the WriteKey entry LAST so a caller cannot override it to empty and send a unit test into the live config volume - the elementwise-comparison comment no longer implies value equality is intrinsic; it holds because those elements are records Mutation proofs re-witnessed after the clauses changed: pin 55->60 reddens, a bogus exemption name reddens, and the r.Id->null mutation is recorded as NOT reddening, which is why the Id claim is stated as it is. Refs #779 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
docs/ — task-signal map
Purpose: route a fresh contributor/agent to the minimal set of docs for the task at hand, instead of a mandatory front-to-back read. Update this doc in the same PR that adds, removes, or retitles a doc below, or that changes which sections a task signal points to.
Start here, always
CLAUDE.md(repo root) — project intro: architecture, layout, dev commands, conventions, Task Completion Protocol.docs/contributing.md— established code patterns (CQRS/MediatR, LanguageExt, the ChicoryTV SPA, EF Core dual-provider migrations, FFmpeg pipeline, analyzers, testing). Read before any non-trivial change.
Task signal → minimal sections
| Signal | Read |
|---|---|
| Session startup / "what's next" (no issue named) | docs/handoffs/chicorytv-issue-queue.md (standing kickoff — two concurrent tracks: orientation ‖ scripts/select-queue.sh 5) |
| Named-issue pickup | Skip queue selection; go straight to focused retrieval — see "Knowledge retrieval" below, then the issue body |
Adding/changing a /api/* endpoint |
docs/api-conventions.md checklist + docs/endpoint-index.md |
| Adding a ChicoryTV SPA screen | docs/spa-conventions.md |
| Scheduling / playout engine work | docs/domain-model.md + decisions catalog rows keyed sched.* (docs/decisions/README.md) |
| Concurrency / optimistic-locking work | docs/api-conventions.md §7a/b/c + docs/decisions/optimistic-concurrency.md |
| Auth / security-surface work | docs/decisions/api-auth-security.md |
| CI / release pipeline work | docs/ci-cd.md + docs/decisions/release-ci-governance.md |
| Proposing a new guard / CI check / regression test convention | docs/defect-shapes-773.md §4 (detector menu + the classes where no detector is plausible), then the two rules every guard must satisfy: docs/decisions/records/testing/guard-derives-population-from-source.md and …/guard-ships-with-mutation-proof.md |
| Testing a surface gated by config / an env var / a credential | docs/decisions/records/testing/deny-path-at-production-config-value.md — cover the setting absent, at its production value, and each opt-out, and assert the DENY branch |
| Touching a full-replace write path or a hand-built request object | docs/decisions/records/testing/full-replace-asserts-field-list.md — derive the field list from the DTO and assert set equality; reconcile by id where child state exists |
| Adding / changing / deleting a guard file | docs/guard-inventory.md — every guard's row is machine-checked by scripts/tests/test_guard_inventory.py, so a new guard must acquire a row before the suite goes green |
| Writing code that reads live Gitea/remote state and then acts on it | docs/decisions/records/process/check-and-use-pins-a-version.md, then docs/remote-state-inventory.md — a new executable under scripts/ (excluding scripts/tests/), .claude/hooks/, .husky/ or .gitea/workflows/ must acquire a row there before scripts/tests/test_remote_state_inventory.py goes green |
| Finding every site that references a symbol (multi-site fix/sweep) | docs/local-lsp-tooling.md — which surface answers, and why a delegated agent must be pointed at the csharp-lsp MCP tools rather than the LSP tool |
| Live local run / Playwright-MCP verification | docs/e2e-local.md + scripts/e2e-local.sh |
| Adding/changing a UI-E2E browser flow | docs/e2e-local.md → "UI-E2E harness" + scripts/e2e-ui.sh |
| What does a test suite cover | docs/testing.md |
| Legacy Blazor route lookup | docs/blazor-route-parity.md (historical #91 phase (b) inventory) |
| "Why do we do X this way" / challenging a convention | Catalog-first: docs/decisions/README.md (active rows) → follow the row's link to docs/decisions/records/<area>/<topic>.md for full rationale. docs/decisions/archive/<area>/ only for "what did the rule used to be." |
Knowledge retrieval (MemPalace + catalog + Gitea)
These four rules are the seam agreed with server-management#642 (the Gitea→MemPalace exporter). They apply whether the question comes up via MemPalace, a grep, or a stale comment:
- Current conventions/decisions → catalog-first. Start at
docs/decisions/README.md; discover via theErsatzTV-Decisionswing (active) /ErsatzTV-Decisions-Archive(superseded/retired). Resolve by topic/key, never by chasing a file path. - Issue history → evidence, not authority. The
Gitea-ErsatzTVwing is historical narrative that may be stale; it never overrides current Markdown. - The breadcrumb rule (the crux behavior change). A file path named inside a historical issue
comment (e.g. "grep
docs/decisions.md2026-07-17", "see …") is a breadcrumb, not a live pointer. Find the current rule via the catalog / active wing by concept; do not treat the named path as current. (Why it's safe: still-current → in the active wing, breadcrumb resolves; superseded → the active wing returns the successor and a literal follow lands on a record that announces its ownstatus: superseded; retired → the active wing returns nothing, which is itself the signal. The validator-enforced move-to-archive/is what prevents the catastrophic "superseded rule read as current" case.) - Fallback when MemPalace is stale/down:
docs/decisions/README.mdcatalog, thenrg '^`key: <dotted.key>`' docs/decisions/. MemPalace is never authority nor sole fallback.
MemPalace is candidate discovery only — every passage is verified against its cited Markdown/Gitea
source before use. Never derive live queue state from MemPalace, #237, or historical comments; queue
state is live Gitea state, retrieved via scripts/select-queue.sh (see
docs/handoffs/chicorytv-issue-queue.md). Full retrieval contract (altitude/precedence, staleness
bounds, what's mined per issue): docs/handoffs/chicorytv-issue-queue.md → "Knowledge retrieval".
Also present in docs/
docs/domain-model.md— what the app IS: entity glossary, channel→playout→schedule/block concept map, where each concept is edited in the SPA.docs/api-conventions.md— checklist for adding/changing a/api/*endpoint (controllers, DTOs, error mapping, auth, OpenAPI regen, tests).docs/spa-conventions.md— playbook for adding a screen to the ChicoryTV React SPA.docs/e2e-local.md(+scripts/e2e-local.sh) — how to run a live local instance for manual or Playwright-MCP verification.docs/local-lsp-tooling.md— the code-intelligence surfaces (theLSPtool's three servers and thecsharp-lspMCP server): how each is configured, which one a subagent can actually reach, the traps (a cold server answers the first query with a confidently partial result), andscripts/check-local-lsp.shto verify the preconditions. Read before briefing an agent to find every site referencing a symbol.docs/testing.md— testing map: what each*.Testsproject /websuite covers, golden-file nets, the timezone-independence rule, how to run subsets, the per-PR verification gate.docs/blazor-route-parity.md— historical record of the completed #91 phase (b) cutover: the Blazor Server UI is removed and every legacy route now 302-redirects to its SPA equivalent (or falls through to the catch-all →/app). Read it for the full legacy→SPA route inventory.docs/decisions/records/<area>/<topic>.md— one active decision record per file, YAML frontmatter (key/title/status/since/supersedes/superseded-by, plus optionalstale-after/sources— ersatztv#603), rationale prose in the body. The filename is the key, so one-active-record-per-key is a filesystem property (ersatztv#610).docs/decisions.mdand the topic files remain as the lifecycle-schema narrative plus a "Records formerly in this file" index, which is what keeps older date-based pointers resolvable. Generated active view:docs/decisions/README.md(catalog / task router) — start there. Superseded/retired records live indocs/decisions/archive/and are read only for history, never for "what is the current rule."docs/ci-cd.md— build/test/release pipeline, versioning, dependency management.docs/rest-api.md— REST API design doc for ersatztv#2 (goals, conventions, per-slice plan). Largely superseded day-to-day bydocs/api-conventions.md; read this for the original rationale.docs/mcp.md— theErsatzTV.Mcpstdio JSON-RPC MCP server (#58): how it wraps/api/v1as read + cautious-write tools, its config/env vars, auth, security posture, and the tool catalog.docs/channels.md— Channel entity field reference.docs/m3u-xmltv.md— M3U/XMLTV generation overview (ChannelPlaylist,GetChannelGuideHandler).docs/fork-strategy.md— divergence policy vs upstream ErsatzTV.docs/design-sync.md— Claude Design ↔ repo screen workflow (#92).docs/endpoint-index.md— generated REST endpoint index (method/path/operationId/summary per OpenAPI tag). Do not edit by hand; regenerated byscripts/generate-endpoint-index.py/scripts/update-openapi.sh.docs/handoffs/chicorytv-issue-queue.md— static session kickoff prompt + workflow lore. Queue state is live Gitea state, retrieved each session viascripts/select-queue.sh— see that file's standing kickoff for the two concurrent tracks (orientation ‖ selection). ersatztv#237 is a closed, archival historical tracker (superseded bystartup.parallel-orientationindocs/decisions.md) — not a live pointer.docs/defect-shapes-773.md— root-cause analysis of the recurring defect shapes across the whole closed-issue corpus (#773): the measured class ranking, the four families they consolidate into, the cheapest mechanical detector per class, the classes where no detector is plausible, and an audit of which configured hooks/MCP servers/LSPs are actually invoked. Read it before proposing a new guard or CI check — §4 is the detector menu, and it argues against enumerating cases one incident at a time.docs/remote-state-inventory.md— every executable inscripts/(excludingscripts/tests/),.claude/hooks/,.husky/and.gitea/workflows/that reads live remote state and acts on that read, classifiedPINNED/CAS/UNSAFE-KNOWN/N/Awith the window and what bounds it. Code outside those directories — C#/TypeScript guards,web/, and the test suites themselves — is out of scope, and the doc states that rather than implying coverage. The population is derived fromgit ls-filesand compared for set equality byscripts/tests/test_remote_state_inventory.py, so a new script that talks to a remote service cannot ship unclassified. Read it withprocess.check-and-use-pins-a-version; it is that record's detector, since the class has no plausible linter (docs/defect-shapes-773.md§4 detector D).docs/guard-inventory.md— every executable guard file, what it blocks, whether it is aGUARDorTOOLING, and whether it ships a mutation proof (MUTATION/BEHAVIOUR-ONLY/NONE) with afile::functionref. The population is derived from the filesystem and the workflow/hook call sites and compared for set equality byscripts/tests/test_guard_inventory.py, so a new guard cannot ship unclassified and a renamed test cannot leave a row claiming coverage it has lost. Guards implemented inline in workflow YAML are deliberately outside that population — the doc states the limit rather than implying coverage.docs/tracker-retrofit-triage-237.md— audit trail for the #524 triage of ersatztv#237's 111 comments (method, per-comment classification, totals). Evidence for thedocs.tracker-comment-retrofitdecision; read it only when triaging another over-cap tracker.docs/handoffs/rest-api.md— original handoff prompt for kicking off the REST API work (#2).