Review of the ADR-0020 gate found four ways it could exit 0 without measuring, and
one way it hard-failed a repo it had no business failing. On a gate shipping hot
with no baseline, a silent pass is the worst outcome available and a false block is
the second worst.
Consumer resolution was the blocker. _authoring_root() fell back to the nearest
.git, so it returned truthy in ANY git repo; _collect_authoring_root() then
contributed nothing and the deployed-tree branch was dead code in precisely the
consumer case it exists for. A consumer repo routing to an installed sibling got an
unblockable ERROR, and deleting .git "fixed" it. It now keys on which of the two
walk-up passes matched. A name-count delta was tried first and is wrong: a
single-plugin monorepo re-collects its own package and adds no new name, so the
delta reads zero and drags the deployed trees — including a global ~/.claude — back
into the universe. That reintroduces the install-dependence ADR-0020 forbids, one
layer down.
The three silent passes: an indented `---` inside a block scalar truncated the
frontmatter and reclassified the rest of the description as body; a non-string
description was str()-coerced, so `description: true` measured as the four-character
"True"; and an unterminated fence blanked the rest of the body, disabling the
ERROR-tier references/ check and the gotcha counts.
Two measurement defects came with them. The awk line/word counts discarded awk's
exit status, so an unreadable file passed both spec ceilings in total silence, and
awk NR/NF disagreed with the audit script's splitlines()/split() on Unicode
whitespace — the "fix one gate, get blocked by the other" bug, on the two axes the
differential test deliberately excluded. Both counts now run in the Python block
that already reads the file. A type error also no longer reports itself as a syntax
error.
Also: glob metacharacters in the checkout path silently disabled the resolver;
re.I was applied to some extraction patterns and not others; agent-audit missed
`tools:` written as a YAML block sequence, the shape Copilot files use; and a
nonexistent agent file raised a bare FileNotFoundError instead of a diagnostic.
The shared resolver block stays byte-identical across all three scripts. Corpus
output is unchanged — 26 description FAIL, 9 body FAIL, 2 dangling, 0 missing
references, 58 SUGGESTIONs — so no documented count moves.
Refs: #99
ADR: 0020
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015W3iwF9ncfRZddGBxsMCYi
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