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fix(812): classify the narrative sites by who-benefits; keep the detector's reach
#784 generalized `docs.no-session-narrative` and REPORTED the leak rather than
remediating it. This is the remediation: 64 dispositions, manifest in the PR body.

THE POPULATION WAS NOT 21. The issue's table is dated at 706674272 (2026-08-21). Since
then 1924 lines have been added to `docs/**/*.md` outside `docs/decisions/` plus
root-level `*.md`, measured against origin/main at 8aeacd534, and every line number in
the issue had drifted. Measured, not assumed:

  - one of the 21 no longer exists — #872 rewrote guard-inventory.md's scope-limit
    section and the autobiography went with it, the *why* surviving. No action.
  - FOUR sites postdate the sweep (ci-cd 1674/1682, remote-state 149 x2).
  - The rest were already in the corpus and missed by BOTH of the sweep's passes.
  - Some are invisible to the detector BY CONSTRUCTION: it is line-based, so
    "an earlier \n draft" wrapped across a newline never matches. A line-based grep
    inherits that blind spot, which is how several sites stayed hidden until the sweep
    was re-run over WHITESPACE-JOINED text.

Auditing exactly the named lines would have repeated the defect the issue is about —
`guard-inventory.md` already records it as "the issue's list of files to assess was a
starting point, not the population".

DISPOSITIONS — 64 sites, one row per site in the PR body. Three kinds, not the issue's
binary, because for most sites the corrected claim and the autobiography sat in ONE
sentence: cutting loses the finding (#542), leaving it keeps the narrative. The rule
already licenses the third — "only the corrected claim enters the doc". 50 sites EDITED
(53 clauses; three sites carried two each), 13 KEPT as carve-outs, 1 ALREADY REMEDIATED.
Phrase-level only — no paragraph was restructured.

NO CLOSURE IS CLAIMED OVER A PHRASING SPACE, and that is the finding rather than a
caveat. One class was swept — a bare attribution of who found a finding, where the
reasons follow in the next clause. SIX review rounds each surfaced another survivor,
every round's grep a locally-correct word-list that never converged; the last found
"(revised after Fable review)" in a file whose SIBLING this change had already edited,
which is the fix-one-path-check-its-twin shape. So the claim is bounded: the manifest's
sites were remediated. NOT that the class is closed — not globally, and not inside the
docs corpus either. #876 carries the same bounded wording for the corpus outside `docs/`.

THE EXEMPTION TEST NEEDED A CLOSED-FORM PROOF, and three finite ones failed first.
`hits(out) == set()` passes when the scan examined NOTHING, so a non-exempt control is
required and that part always held. But proving a sample's absence is due to the PREFIX
rather than its SHAPE defeated a depth-1 control (by a depth-1 rule), a depth-3 control
(by a `count("/") <= 3` cap) and minimal twins (by a directory-NAME rule keyed on the
rename). Each was locally correct; the sequence did not converge. I retracted the claim;
review then showed the RETRACTION was itself premature, because a closed-form proof
exists that is not a fixture: `is_scanned_path` compared against an INDEPENDENT
restatement of the rule — written over path segments, not string prefixes — across every
tracked `*.md` path, plus a cross product of four dimensions a population rule has been
OBSERVED to key on here, since widened with basename, case and dotted directories. That
list enumerates; it is not a universal over the space of rules.

THE RESIDUAL AFTER ALL OF THAT IS THE WIRING, and it is named rather than closed. Every
proof above is about `is_scanned_path`; none establishes that the SCAN consults it. A
`continue` added at either call site re-exempts a path with the function untouched —
measured to drop `--all` from 66 files to 31 while the oracle stays green. A fixture
under `docs/superpowers/` is asserted to reach the OUTPUT so the one re-exemption this
change argues against is witnessed; the general residual stands.

`docs/superpowers/**` IS REACHED BY THE RULE and the detector's population is UNCHANGED.
A wholesale exemption was built, then killed under review: `--diff`, the mode CI runs,
scans ADDED lines and a frozen file contributes none, so it buys nothing where the check
runs; what it WOULD suppress is a plan being written or revised now — 15 of the 35 have
more than one commit. Two dated review SECTIONS there ("## Post-review
revisions (Fable, 2026-07-20)" and "## Fable review fold (2026-07-21)") are kept as stated
snapshot boundaries; the bare parenthetical attributions around them are not.

`--all` goes 9 -> 1. The survivor is the carved-out one: a rejected design kept with the
concrete harm that killed it.

Corrected in review: the sweep had replaced a true attribution at ci-cd.md:1910 with a
FALSE location — the third nil-slice instance was introduced by #622 on 2026-07-25, 12
days before the #751 fix, which does not touch that gate. And two edits had converted
observed defects into hypotheticals (ci-cd.md:982) and one round's yield into a total
(ci-cd.md:951); both are restored.

fixes #812

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019T79beF1Ufid3dXju4yqkF
2026-08-29 21:15:43 +02:00
..

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
Explaining a consequential settings field in the SPA (summary → hover/tap panel → docs link) docs/spa-conventions.md §15 — use the shared FieldHelp trigger and put the copy in the screen's own FIELD_HELP record; the icon, the gesture and the a11y contract are fixed
Graphics element / overlay work (text bug, On Now / Next, watermark-vs-[vge]) docs/graphics-elements.md, then decisions catalog rows keyed graphics.*
Scheduling / playout engine work docs/domain-model.md + decisions catalog rows keyed sched.* (docs/decisions/README.md)
Adding or changing a paged list handler (a page plus a TotalCount) Resolve api.paged-count-matches-page-query via docs/decisions/README.md — for an EF-backed filtered list, count the SAME query you page, with includes appended to the page chain only; where the count and the page are separate methods, a test pins their agreement. Then api.paging-zero-based for the pageNum/pageSize contract
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 rules every guard must satisfy: docs/decisions/records/testing/guard-derives-population-from-source.md, …/guard-ships-with-mutation-proof.md and …/mutation-claims-are-executed.md (a MUTATION grade carries a DECLARED clause mutation that is re-run every suite) — plus …/verification-code-needs-its-own-proof.md, which extends the same obligation BEYOND guards to the harness, wrapper or checker doing the checking, and says where its proof lives when the checker holds no row
Adding or bounding a consequential numeric config field (an FFmpeg profile tunable, a pipeline knob) docs/api-conventions.md §3d — reject out of range with a 422 naming the bound and its consequence, never accept-then-rewrite; validate against the constants the renderer reads, keep the render-time clamp for pre-existing rows, and let an UNCHANGED legacy value through on update. Then api.ffmpeg-profile-numeric-bounds
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. In the SPA the same rule is enforced by the type system: docs/spa-conventions.md §4b — build the body as Complete<T>, annotating BOTH the wrapper parameter and every construction site
Writing or editing any doc, or answering a review finding in prose docs/decisions/records/docs/no-session-narrative.md — the doc records the END STATE; the path to it goes in the commit message. Apply the who-benefits test, and read the carve-out before you cut (dated measurements, stated snapshot boundaries and tested-and-rejected results stay)
Adding, renaming or removing a workflow JOB docs/ci-cd.md → "Per-job declarations" — every job declares env.CI_JOB_ROLE (and, in docker-build.yml, env.CI_EXECUTION_CLASS); a missing or unknown value fails scripts/tests/test_workflow_job_guards.py / …/test_ci_image_pin_population.py, and a guard or report-only job also needs a row in docs/guard-inventory.md → "Workflow-job guards". Rationale: docs/decisions/records/testing/workflow-declares-its-own-job-metadata.md
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, and a row graded MUTATION must also acquire a declared clause in scripts/tests/mutation_manifest.py
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 of the three surfaces answers, and why a delegated agent must be pointed at an MCP server (csharp-lsp, or serena after an activate_project) rather than the LSP tool, which no subagent has been observed to reach
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:

  1. Current conventions/decisions → catalog-first. Start at docs/decisions/README.md; discover via the ErsatzTV-Decisions wing (active) / ErsatzTV-Decisions-Archive (superseded/retired). Resolve by topic/key, never by chasing a file path.
  2. Issue history → evidence, not authority. The Gitea-ErsatzTV wing is historical narrative that may be stale; it never overrides current Markdown.
  3. The breadcrumb rule (the crux behavior change). A file path named inside a historical issue comment (e.g. "grep docs/decisions.md 2026-07-17", "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 own status: 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.)
  4. Fallback when MemPalace is stale/down: docs/decisions/README.md catalog, then rg '^`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 (the LSP tool's three servers, the csharp-lsp MCP server, and serena): how each is configured, which ones a subagent can actually reach, the traps (a cold server answers the first query with a confidently partial result; serena needs an activate_project per directory), and scripts/check-local-lsp.sh to verify the preconditions. Read before briefing an agent to find every site referencing a symbol.
  • docs/testing.md — testing map: what each *.Tests project / web suite 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 optional stale-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.md and 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 in docs/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 by docs/api-conventions.md; read this for the original rationale.
  • docs/mcp.md — the ErsatzTV.Mcp stdio JSON-RPC MCP server (#58): how it wraps /api/v1 as read + cautious-write tools, its config/env vars, auth, security posture, and the tool catalog.
  • docs/graphics-elements.md — graphics element (overlay) schema reference: how elements are discovered and attached, the YAML parsing traps (an unknown key disables the element outright), the full text-element field table including the #732 background box, and why [vge] in a filter graph does not imply a graphics element is bound.
  • 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 by scripts/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 via scripts/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 by startup.parallel-orientation in docs/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 in scripts/ (excluding scripts/tests/), .claude/hooks/, .husky/ and .gitea/workflows/ that reads live remote state and acts on that read, classified PINNED / CAS / UNSAFE-KNOWN / N/A with 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 from git ls-files and compared for set equality by scripts/tests/test_remote_state_inventory.py, so a new script that talks to a remote service cannot ship unclassified. Read it with process.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 a GUARD or TOOLING, and whether it ships a mutation proof (MUTATION / BEHAVIOUR-ONLY / NONE) with a file::function ref. The population is derived from the GIT INDEX (not a filesystem walk, since ersatztv#806) and the workflow/hook call sites, and compared for set equality by scripts/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 the docs.tracker-comment-retrofit decision; 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).