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timothyandClaude Fable 5.1 a7d91bf15a fix(876): sweep session narrative out of hooks, workflows, scripts, tests and code comments; grow the detector to the process corpus
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`docs.no-session-narrative` reaches every durable artifact, but its detector scanned only
`docs/**/*.md` and root markdown, and nothing had ever swept the rest. The issue named four sites
from one grep and called them a floor. Deriving the population instead — a whitespace-joined sweep
over every tracked file outside the detector, for the detector's own phrasings plus the attribution
and review-round class #812 found — gave 453 sites in 108 files at `fb5592971`, and a second pass
for phrasings the first list missed (hyphenated `round-N`, "an earlier version", "the reviewer
proved") added residuals in the same files. Every site was classified with #812's three
dispositions (CUT / SEVER / KEEP with its sub-kind) under the who-benefits test; the per-site
manifests are on the PR. The rejected designs, tested-and-rejected fixtures, measurements and
traps stay; the attribution of who found them and the round in which they were found go.

The detector's population grows to `.claude/`, `.gitea/`, `.husky/` and `scripts/` regardless
of extension, minus the detector and its own test (whose fixtures ARE the phrasings) and minus
`scripts/tests/fixtures/` (test data, including decision-record copies — the same reasoning as
the records' own exemption, and what keeps the record's depth measurement true), and `--all`
lists tracked REGULAR files only — a symlink's content is its target and a gitlink has none. The #812
argument for leaving `docs/superpowers/**` in the population runs the other way here: `--diff`
sees only ADDED lines, and 287 of the 453 sites were under 30 days old — this corpus is where
narrative is being added, so the advisory nudge has reach. Density agrees: 56 line-mode hits over
the 113 regular files the predicate admits, against 9 over 66 docs files before #812. `web/` and C# stay out on the same
measurement (3 of 74 PATTERNS-matching sites, ~4,600 files). The predicate did not grow: PATTERNS
matched 74 of 453 sites, and widening the word list to the attribution class is the treadmill
the withdrawn parity test ran on. The population oracle is restated over segments with the new
arms, the synthetic cross product gains the process heads and non-markdown extensions, a fixture
witnesses that a tracked symlink is neither scanned nor counted, a `.py.bak` axis separates a
by-name exemption from a `startswith` over the same tuple, and eight mutants (drop the process
arm, drop the by-name exemption, exempt by `startswith`, drop or add a prefix, drop the fixtures
exemption, list only markdown, drop the symlink filter, test the mode per row instead of per
path) each
redden it. A pre-existing silent drop in `--diff` goes with it: git tab-terminates a `+++`
filename that contains a space, and the kept tab made `is_scanned_path` refuse the file with no
notice — fixed, with a positive control and its own mutant.

Code is unchanged by construction, measured per file type against `origin/main`: Python modules
are AST-equal with docstrings stripped, except `#` lines inside the embedded fixture programs
(string literals) of three test modules; workflows differ only in `#` lines inside `run:` block
scalars; shell, C#, TypeScript and jq are equal with comment lines stripped. The stated
exceptions: the detector and its test, 26 vitest titles that carried review-round or severity
labels or a reviewer attribution (call sites whose title changed — every changed title line
walked back to its `it(` / `it.each(...)(` anchor, so a `' + '` concatenation counts once), two
registry note strings and the mutation manifest's prose fields. scripts/tests: 1565 passed.
Web: lint, typecheck, 1319 tests green. Closes #876.

Decisions-Edit: yes
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PEcBoFw7ctrf3Nb7R7x7wk
2026-09-03 20:51:39 +02:00
timothy bc1a37ff01 fix(510): pin the blank-guard's is-Custom discriminator, verified by mutation
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Round-4 review found the fall-through tests, while now falsifiable, still did
not pin the whole guard. Two gaps, both closed and both verified by running the
mutation rather than by asserting the test would catch it:

1. All three fall-through tests used only "   ", so narrowing
   IsNullOrWhiteSpace to `image == "   "` would have passed while breaking
   fall-through for null and "" -- and null is the form the API actually
   persists. Parameterized over null, "" and "   ".

2. Nothing pinned the guard's `ImageSource is Custom` clause. This is the
   sharper of the two: a ChannelLogo watermark's Image is NORMALLY blank
   (the API writes Image = null for every non-Custom source), so dropping the
   discriminator would send every playout-item ChannelLogo watermark down the
   fall-through path instead of resolving the channel's own logo -- with a
   fully green suite. Added
   Blank_Image_ChannelLogo_Playout_Item_Watermark_Should_Win_And_Not_Fall_Through,
   which distinguishes the two levels by watermark Id so a fall-through is
   observable even though both resolve to the same cached path.

Mutation results (each mutation applied on its own, then reverted):

  drop `is Custom` from the guard  -> 1 failure, and the new test is the ONLY
                                      test that catches it
  IsNullOrWhiteSpace -> == "   "   -> the null and "" parameterized cases fail

Negative control re-measured on the final 32-case fixture: 19 fail against the
origin/main resolver. The 13 that pass both ways pin deliberately preserved
behavior plus the positive control, which the record now states explicitly
along with the mutation table.

This round's lesson, recorded in the record: a test's NAME is not evidence it
pins what it claims, and a whole-file revert cannot show that a test aimed at a
specific clause actually reaches that clause -- only mutating the clause can.

Gates: 2661 tests green across 4 projects, 225/225 script tests (the gate I
skipped before the last push), decisions-validate OK, format exit 0, no BOMs.

refs #510
2026-07-26 21:53:01 +02:00
timothy edf8be4b5e fix(510): re-review round — make two review-added tests actually falsifiable
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Re-review of the previous fix commit found that two tests added to close
round-1 findings could not fail. Both verified before fixing:

1. Missing_But_Named_Custom_Playout_Item_Watermark_Should_Not_Fall_Through
   gave the channel-level fallback the SAME missing custom path as the
   playout-item watermark, so a wrongly-widened guard would have fallen
   through to a fallback that also resolved to None -- the assertion held
   either way. The fallback is now an independently resolvable ChannelLogo
   whose cached file exists, so a fall-through returns it and fails the test.
   Added the matching positive control (blank -> falls through and DOES
   return that logo), so the pair shows the guard distinguishes blank from
   unresolvable instead of both landing on None.

2. Deco_With_One_Valid_And_One_Missing_Watermark... asserted a filtered list
   length while the routing claim the decision record cited it for lives in
   FFmpegLibraryProcessService.CanUseFFmpegNativeWatermark, which the test
   never called. It now calls the real predicate.

Also, three wrong claims of my own:

3. The Resource arm comment said "nothing in the app writes a Resource
   watermark to the database". False -- CreateWatermarkHandler and
   UpdateWatermarkHandler persist whatever ImageSource the request names, so
   a Resource watermark IS creatable through the API, always with
   Image = null. That is precisely why the new null guard is load-bearing,
   so the comment was arguing for its own removal.

4. "One resolver and no per-caller policy" contradicted the surviving
   playout-item blank-Custom fall-through documented a few lines later.
   Reworded in both the record and the XML docs: one resolver, and exactly
   one piece of per-caller policy which lives in the CALLER.

5. The record's "12 of 18 new tests fail pre-fix" was stale. Re-measured
   against the final fixture: 19 of 29. The other 10 pass both ways by
   design because they pin preserved behavior, which the record now says
   explicitly rather than leaving the gap to be read as weakness.

Removed the vacuous generated-URL test rather than keeping it with an honest
comment -- an empty list trivially contains no URL, so it implied coverage it
never had. Its assertion is folded into the sibling test that has a real
arrangement.

Gates: 2772 tests green across 5 projects, dotnet format exit 0, no BOMs,
decisions-validate OK, live-E2E re-run against this binary (0 changed pixels,
nameplate absent, warning emitted).

refs #510
2026-07-26 21:29:11 +02:00
timothy 1a7f15fb27 fix(510): address independent review — Resource null guard, honest routing claim
Two independent reviews (cross-family Codex + cold Opus) both returned
BLOCKED. Findings, all verified against source before acting:

1. Resource arm could throw ArgumentNullException (Codex, Medium). Making the
   channel/global Resource arm reachable exposed that CreateWatermarkHandler
   and UpdateWatermarkHandler write `Image = null` for EVERY non-Custom
   watermark, so an API-created Resource watermark reached
   Path.Combine(folder, null). Added the blank/null guard the arm never had.
   This was live at the playout-item level too, not just newly-reachable code.

2. "Routing is unaffected" was false (Codex, Low but sharp). The predicate is
   unchanged, but CanUseFFmpegNativeWatermark also tests Count == 1, and
   dropping an unresolvable watermark shortens the list. A deco with one valid
   and one missing permanent watermark now routes ffmpeg-native where it
   previously routed to the graphics engine. Intended, but observable -- so it
   is documented and pinned by a test rather than claimed away.

3. "Exactly one resolver" over-claimed (Opus, High). True of the selector, not
   the application: the song-progress overlay is built as a WatermarkOptions
   directly by the streaming and troubleshooting handlers, unchecked, and can
   still hand ffmpeg a nonexistent -i. Pre-existing; scoped the claim in the
   record and channels.md and filed #653.

4. Undeclared crash->degrade change (Opus, Medium). Channel/global Custom had
   no blank-image guard, so a cleared image hit ImageCache's fileName[..2] and
   threw out of stream startup. Now declared in the record and tested.

5. Contradictory rule text (Opus, Medium) -- the catalog one-liner said
   "always no bug" while the body documents the playout-item fall-through
   exception. Qualified; catalog regenerated.

6. History was wrong in both the record and the XML docs: the three precedence
   levels did NOT all check every source -- channel/global had no Resource arm
   and threw. Corrected.

Tests: 30 in the fixture now (was 18). New coverage for the preserved
blank-Custom fall-through (to channel AND to global), the complement case
(missing-but-named must NOT fall through), null/blank Resource, and the
valid+missing routing case. 17 of 24 failed against the pre-fix resolver
before this round; the fixture stays mutation-sensitive.

Also: hoisted the mock-filesystem Initialize() out of its loop so a
multi-file case cannot silently seed only the last file, and marked the
generated-URL test honestly as redundant-by-construction rather than
claiming independent coverage.

The decision record is now 81 prose lines, over the 60-line ceiling. Declared
as a legitimate decline per docs.corpus-size-signal: the length is the review
findings above, each a distinct fact, not redundancy.

refs #510 #652 #653
2026-07-26 21:12:13 +02:00
timothy 9cbe70e486 fix(510): one watermark resolver for all four attachment points
WatermarkSelector resolved watermarks in two places with two policies. The
three precedence levels (playout item, channel, global) existence-checked
every image source and degraded to None; the deco path had its own copy of
the same switch that returned whatever path it computed, unchecked. So one
channel could disagree with itself about whether an on-screen bug rendered,
based only on how the watermark was attached.

#502 deferred this here but scoped it to ChannelLogo. It was never
ChannelLogo-only: the deco path skipped the existence check for Custom and
Resource too. Extract one ResolveWatermark used by all four sites.

Severity is not cosmetic. A dead LOCAL path is not harmlessly skipped --
CanUseFFmpegNativeWatermark hands a single permanent watermark to ffmpeg as
a bare -i argument and excludes only URLs, so the deco path could hand
ffmpeg a nonexistent input file.

The generated-initials nameplate was real: a live-E2E on a real transcoded
frame confirmed it composited via the deco path (/iptv/logos/gen is on
ArtworkController, which has no auth filter, so the container-internal
self-fetch succeeded). The #502-era comment claiming "it has never rendered
here" was wrong, and the new record says so. It is still removed: serving it
means an HTTP fetch inside stream startup, which graphics.channel-logo-caching
(#525) eliminated for logos, and it depends on #1's hardcoded localhost.
Reviving it by caching the image instead is #652.

Measured blast radius on prod: 0 Deco rows, 0 DecoWatermark rows, all 43
channels have logo artwork -- no rendered output changes.

Preserved deliberately: a playout-item Custom watermark with a blank image
still falls THROUGH to the channel/global watermark; unifying resolution must
not change which watermark wins. Routing is untouched.

Strict improvement: the channel and global arms previously threw
NotSupportedException on a Resource watermark; they now resolve it. The
default arm still throws so a new image source fails loudly.

Tests: 18 new cases including a positive control and 8 deco-vs-channel parity
cases. 12 of the 18 fail against the pre-fix resolver, which is what proves
they are load-bearing rather than vacuous.

fixes #510
2026-07-26 20:54:00 +02:00