fix(dedup): add deterministic duplicate-work checks for PRs and issues - #1215
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Duplicate-work checks for PRs (new PreToolUse hook), retrospective issues (merge-retrospective Step 0 hardening), and new issues (Dedup disclosure line) -- Branch Plan per executing-a-branch-plan step 3, consumed from planning-a-branch-from-an-issue's independently re-verified Acceptance Criteria Map. Refs #1197
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📝 WalkthroughWalkthroughThe change adds a fail-closed duplicate-PR hook, deterministic retrospective issue matching, and mandatory ACM issue deduplication disclosures. It registers and tests the hook, updates skill instructions and validation, adds evaluation coverage, and updates related test configuration. ChangesDuplicate-work prevention
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to This PR adds duplicate-work protections for pull requests, retrospectives, and newly drafted issues, but the current implementation can still miss duplicates, mishandle invalid hook input, or accept invalid dedup disclosures, while required repository checks are failing. These bounded correctness and readiness issues should be fixed before merge. Sequence Diagram(s)sequenceDiagram
participant PRCreation
participant ShellHook
participant DuplicateIssueChecker
participant GitHub
PRCreation->>ShellHook: submit create_pull_request payload
ShellHook->>DuplicateIssueChecker: pass reduced PR payload
DuplicateIssueChecker->>GitHub: fetch open pull requests
GitHub-->>DuplicateIssueChecker: return paginated PR data
DuplicateIssueChecker-->>ShellHook: allow, deny, or fail closed
ShellHook-->>PRCreation: continue or return structured denial
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Comment |
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #1215 +/- ##
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+ Coverage 99.48% 99.49% +0.01%
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Files 106 111 +5
Lines 19442 20104 +662
Branches 2331 2361 +30
==========================================
+ Hits 19341 20003 +662
Misses 101 101 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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…same issue New PreToolUse hook denies opening a PR whose target issue (the one it would Close/Fix/Resolve) is already cited -- resolving or context -- by another currently-open PR, with a Duplicate-PR-waiver escape hatch for a genuinely intentional second PR. Reuses extract_citations from the existing pr-issue-acm-disclosure hook rather than a third copy of that regex. Fetches open PRs via the deterministic List Pull Requests REST endpoint, never the semantic Search API. Closes the gap issues #1069/#1070 and #1066/#1067 (two independent sessions producing duplicate work against the same source issue, undetected) demonstrate. Task A of the issue #1197 Branch Plan (docs/superpowers/plans/2026-08-18-claude-pr-1197-merge-ready-wp2ldc.md). Refs #1197
Step 0's dedup check already existed but its "search that exact phrase plus label:retrospective" wording only maps to a semantic-search tool's compound phrase+qualifier query shape -- the one available exact-filter tool takes a structured label array with no free-text phrase param. Names the deterministic mechanism explicitly instead: list issues by label, then compare titles with a plain client-side exact string match, so a real match can no longer be silently missed by a search index's own ranking. Step 0 text only -- no ssot.json/schema change. Verified non-overlapping with the in-flight, unmerged PR #1196 (issue #1176's own fix for this same file's Step 1). Task B of the issue #1197 Branch Plan. Refs #1197
…ling
New Step 6 runs a search_issues query for the drafted topic before the
issue is created, and requires the drafted body to carry a `Dedup:
{query used}, {N results reviewed}` line, or an explicit `Dedup: none
found` -- disclosure only, no mechanical similarity check. Step 7 (was
Step 6) now validates both the ACM table and the Dedup line in one
gitapex_check_acm_present.py invocation; every later step renumbered
accordingly, plus a new Stop-boundary bullet and its own eval fixture.
gitapex_check_acm_present.py gains has_dedup_disclosure() alongside the
existing has_acm_table(), with its own new co-located test suite (this
script had none before). Registered the script's directory in
pyproject.toml's testpaths/pythonpath/coverage config, matching every
other skills/*/scripts/ directory with its own tests.
Also fixes tests/test_gitapex_gate_local_preflight.py's own hardcoded
"26 exclusions" prose count, stale against .gitapex/ssot.json's actual
27 after Task A's own new pr-duplicate-issue gate registration --
caught by running the full suite, not scoped to Task C's own diff.
Task C of the issue #1197 Branch Plan.
Refs #1197
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Inline comments:
In `@docs/superpowers/plans/2026-08-18-claude-pr-1197-merge-ready-wp2ldc.md`:
- Around line 283-293: Add the required deterministic-gate-quality: RAN
disclosure, or a valid waiver, under the “## Skill audit evidence” section of
the PR body, then rerun the GitHub Actions gate and only mark the PR ready after
it passes.
- Around line 93-95: Update the authorization record text so “#1197” is not
placed at the start of a line; keep the issue reference inline with surrounding
prose, such as after “issue,” while preserving the existing meaning.
In `@hooks/check-pr-duplicate-issue.sh`:
- Around line 64-66: Update the payload validation in the hook before extraction
to reject null or non-object tool_input values, including false, while
preserving acceptance of JSON objects. Add false to the existing invalid-input
regression cases so the hook emits structured denial instead of exiting during
extraction.
In `@hooks/gitapex_check_pr_duplicate_issue.py`:
- Around line 184-208: Update the pagination logic around the page loop that
collects open pull requests so a full final allowed page is treated as
incomplete: fetch one additional page to confirm exhaustion, or raise
GitHubApiError when the configured bound is reached with a full page. Preserve
normal early termination for short or empty pages, and add a regression test
covering more than 1,000 open pull requests.
In `@skills/drafting-an-acm-issue/scripts/gitapex_check_acm_present.py`:
- Around line 50-65: Restrict has_dedup_disclosure and its _DEDUP_RE matching to
unfenced, valid disclosures: either a query plus result count or exactly “Dedup:
none found”; reject arbitrary values and occurrences inside fenced code blocks.
Update skills/drafting-an-acm-issue/scripts/gitapex_check_acm_present.py lines
50-65, add rejection coverage in
skills/drafting-an-acm-issue/scripts/test_gitapex_check_acm_present.py lines
37-59, and revise
evals/drafting-an-acm-issue/tasks/dedup-disclosure-missing.yaml lines 13-17 to
use separate eval cases or a supported deterministic grader that verifies the OR
condition rather than only asserting “Dedup:”.
In `@skills/merge-retrospective/SKILL.md`:
- Around line 150-163: Update the retrospective duplicate-check flow around
mcp__github__list_issues to fetch both OPEN and CLOSED issues separately, since
the API does not support an “all” state. For each state, iterate through every
cursor page using pageInfo.hasNextPage and pageInfo.endCursor, then compare
candidate titles with the existing exact phrase match.
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📒 Files selected for processing (15)
.gitapex/ssot.jsondocs/skill-eval-status.mddocs/superpowers/plans/2026-08-18-claude-pr-1197-merge-ready-wp2ldc.mdevals/drafting-an-acm-issue/tasks/dedup-disclosure-missing.yamlhooks/check-pr-duplicate-issue.shhooks/gitapex_check_pr_duplicate_issue.pyhooks/hooks.jsonhooks/test_gitapex_check_pr_duplicate_issue.pyhooks/test_gitapex_check_pr_duplicate_issue_shell.pypyproject.tomlskills/drafting-an-acm-issue/SKILL.mdskills/drafting-an-acm-issue/scripts/gitapex_check_acm_present.pyskills/drafting-an-acm-issue/scripts/test_gitapex_check_acm_present.pyskills/merge-retrospective/SKILL.mdtests/test_gitapex_gate_local_preflight.py
Included review availability: Your plan includes up to 3 reviews per rolling hour; 0 remain after this review.
Adversarial review (independent + CodeRabbit, both verified live before
applying):
- fetch_open_pull_requests now fails closed (raises GitHubApiError)
when max_pages is exhausted and the last fetched page was still full
-- an empty/short page is the only proof pagination is complete, so
the previous version could silently miss a duplicate citation past
the page cap instead of denying.
- check-pr-duplicate-issue.sh's tool_input validity check used jq's
`//` operator, which treats `false` (like `null`) as falsy and
silently substitutes `{}` -- confirmed live with a real jq
invocation -- letting `tool_input: false` reach the payload-extraction
jq call, which then crashes indexing a boolean under `set -e`, past
deny(), fail-open. Replaced with an explicit `== null` check.
- Fixed a markdownlint MD018 false-positive in the branch plan (an
issue-number citation landing at column 1 read as a malformed ATX
heading).
Adds the detection-logic-property-coverage gate's own required
hypothesis property-test coverage for both new/changed presence-check
functions (has_duplicate_waiver, has_dedup_disclosure) and their
module-level regex compiles.
Registers skills/drafting-an-acm-issue/scripts in pyproject.toml's
pythonpath-linked mypy group (both .github/workflows/test.yml and
gitapex_run_precommit_mypy.py's own MYPY_GROUPS, kept in sync by
tests/test_gitapex_run_precommit_mypy_workflow_parity.py) now that
tests/test_gitapex_check_acm_present_properties.py bare-imports it from
tests/ -- dropping its now-redundant standalone mypy invocation and
fixing the resulting stale directory-count comment in
gitapex_gate_local_preflight.py and label-only assumption in
tests/test_gitapex_run_precommit_mypy.py's own coverage check.
Refs #1197
…plicate-issue Adversarial follow-up on issue #1197's own new gate, from a fresh deterministic-gate-quality review dispatched against it: - check-pr-duplicate-issue.sh's shape check validated stdin as a JSON *stream* (one value at a time, deciding on the last), so a real create_pull_request payload with a second JSON value appended walked the gate to `exit 0` with the duplicate-check never run -- live- verified. Fixed by slurping into a one-element array first. - _HTTP_TIMEOUT_SECONDS=20 with up to _MAX_PAGES=10 pages made the documented fail-closed worst case exceed hooks.json's own 45s budget, and a timed-out hook does not block the tool call under Claude Code's own contract -- so the exact GitHub-API-degraded case this gate exists for could cancel it into failing open. Reduced the per-request timeout to 10s and raised the hook's own budget to 130s, with the worst-case arithmetic disclosed inline. - _strip_fences left an *unterminated* ``` fence completely unstripped, so a Duplicate-PR-waiver line a human reader sees rendered as example code (GitHub renders an unterminated fence to end-of-body) was read by the checker as a real waiver. Added a second pass for the unterminated case, ordered before inline-code stripping to avoid it eating into a bare ``` first. - Corrected a comment claiming denial rides both stdout and stderr; live-confirmed denial is stderr/exit-2 only, matching the sibling hook this one adapted the (also-incorrect) claim from. - Disclosed residual risk this gate does not close: no re-check on update_pull_request, no coverage for a PR opened outside this agent-mediated path at all, and the hook-timeout fail-open mode even after the budget fix. Also, from the same review round plus an independent battle-testing-a- skill audit of drafting-an-acm-issue: - gitapex_check_acm_present.py's _DEDUP_RE previously rejected several genuine decorated rendithe field label (`**Dedup:**`, `` `Dedup`: ``, markdown headings) while accepting invisible-Unicode-only "reasons" -- including the skill's own literally-documented Output-section form, which the skill's own bundled gate was rejecting. Replaced with a pattern that accepts markdown decoration around the field name and colon together and excludes the specific invisible/format characters that satisfy \S without carrying real content; added a docstring- literal regression test and updated the hypothesis property's alphabet to match. - merge-retrospective's Step 0 (hardened by this same issue) read as contradicting Step 1's own unchanged search_issues usage, gave no pagination-to-exhaustion instruction for its list_issues call, and described its title comparison ambiguously enough to admit a substring match -- concretely dangerous, since one PR's rendered title is always a literal prefix of a longer PR number's title sharing the same leading digits. Clarified all three in place without touching Step 1. - Added an eval fixture pair (equivalence class 10) covering Step 0's exact-match discipline: a genuine exact-title match that must stop re-filing, and a near-miss substring match that must not be treated as a duplicate. split.json/split.md/eval-status.md updated to match (9:6:3 -> 10:6:4), including a stale linter-warning narrative superseded by a fresh, verified 0-warning run against the full corpus. Refs #1197
battle-testing-a-skill's audit of this same PR found that Step 3 requires quoting the requester's own words verbatim into Facts, and a blockquote is the natural markdown rendering for that -- so a requester's own message merely containing text shaped like "Dedup: none found" could satisfy this gate once quoted, with no real Step 6 search ever run. The prior decoration widening (this same PR) had made this worse by explicitly adding `>` to the accepted prefixes. Drops `>` from _DEDUP_RE's accepted bullet/heading prefixes, closing the most natural rendering of that gap. The same text quoted without blockquote markup remains open -- the same accepted, already-named residual risk issue #1197's own ACM states for this row ("a disclosure-only requirement cannot stop a fabricated Dedup: line"), not a new gap this fix claims to close. Refs #1197
…Dedup:
CodeRabbit review on this same PR found that has_dedup_disclosure() never
stripped fenced code blocks at all -- an earlier reply on this thread
claimed otherwise ("has_dedup_disclosure calls _strip_fences before
matching... verified: False") without actually having run that check;
the real, verified behavior was the opposite (a fenced Dedup line
matched, True). Correcting that here rather than leaving it uncorrected.
The module's own docstring had argued fence-stripping was unnecessary
because this script only grades the agent's own just-drafted body, never
attacker-influenced text -- the same false premise battle-testing-a-skill's
audit of this PR already flagged for the blockquote case (dee2128): Step 3
requires quoting the requester's own words verbatim into Facts, so an
illustrative Dedup: example inside a fenced block, quoted from the
requester, must not satisfy Step 7's gate either.
Adds _FENCE_RE/_UNTERMINATED_FENCE_RE (matching
hooks/gitapex_check_pr_duplicate_issue.py's own hardened pair exactly,
including the unterminated-fence case) and strips both before _DEDUP_RE
runs. Deliberately does NOT also strip single-backtick inline code spans
the way those hooks/ checkers do: _DEDUP_RE treats a lone backtick
touching the field name (`` `Dedup`: none found ``) as accepted
decoration, and inline-code-stripping first would delete the literal
"Dedup" text before the regex ever ran, silently un-accepting a form this
same PR's own regression test requires. Verified this doesn't happen
before writing the test (7-case live check, all correct) rather than
asserting it and hoping.
Refs #1197
… stale eval-status.md evaluating-skill-quality's audit of this PR (dimension 7) found every main() test called checker.main([]) with empty argv, so args.body was always None -- the --body <file> form Step 7 documents as the canonical invocation, and both its error handlers (FileNotFoundError, UnicodeDecodeError), were completely untested. Coverage for this module was 85%, missing exactly those lines. Adds three tests exercising the happy path and both handlers; coverage is now 100%. Same audit (dimension 8) also found evals/drafting-an-acm-issue/eval-status.md stating "10 task files" against an actual, already-stale-before-this-PR count of 12 (11 at base, +1 from this PR's own dedup-disclosure-missing.yaml), and recording only claude-sonnet-4.6 as evaluated while eval.yaml has configured claude-sonnet-5 since the file was created (pre-existing, unrelated to this PR) -- a live run against that config has never actually happened. Corrected both counts/claims; did not fabricate a claude-sonnet-5 run that never occurred. Refs #1197
tvna
marked this pull request as ready for review
August 19, 2026 00:13
…file Codecov flagged 6 lines missing coverage in hooks/test_gitapex_check_pr_duplicate_issue.py -- all were the "expected exception never raised" idiom (a manual try/except wrapping a raise AssertionError fallback line that is, by construction, unreachable on any passing run) or an equivalent hand-rolled callback meant to prove an opener was never invoked. Replaces both patterns with idioms that carry no such gap: pytest.raises for the four exception-expectation cases, and a Mock().assert_not_called() for the two never-invoked-opener cases. Same test semantics, same assertions, no line left permanently unreachable on success -- coverage for this file is now 100%. Refs #1197
The merge of origin/main (PR #1196's own Step 1 rewrite) pushed SKILL.md's merge-commit view to 530 lines, over BODY_MAX_LINES=500 -- neither branch alone exceeded the limit, but the combined view did. Tighten Step 0's own prose (this session's hardening additions, issue #1197) without changing its meaning: same dedup-against-stub logic, same list_issues-over-search_issues rule, same exact-match-vs-substring rationale, same three outcome branches. Step 1's own content (PR #1196) is untouched. 494 lines total, confirmed against both failing tests locally and the full suite (pytest/ruff/mypy, all CI-equivalent invocations) green. Refs #1197
tvna
marked this pull request as draft
August 19, 2026 00:58
tvna
marked this pull request as ready for review
August 19, 2026 09:45
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Summary
Adds deterministic, pre-creation duplicate-work checks across the three
GitHub object types agent sessions in this repository create: a new
PreToolUse hook blocking a duplicate-issue-citing PR, a hardened
merge-retrospectiveStep 0 dedup mechanism, and aDedup:disclosurerequirement for newly-drafted issues.
Facts
incidents (issues chore(retrospective): merge retrospective for PR #1066 #1069/chore(retrospective): merge retrospective for PR #1066 #1070, fix(evaluating-skill-quality): omit external-citations-resolve when sidecar is absent #1066/fix(evaluating-skill-quality): external-citations-resolve fires when sidecar absent #1067, chore(retrospective): merge retrospective for PR #691 #692/chore(retrospective): merge retrospective for PR #691 #693) and two gaps
already confirmed by direct reads this session:
planning-a-branch-from-an-issue/SKILL.mdhas no PR-duplicate check at all, and
drafting-an-acm-issue/SKILL.mdhas noissue-duplicate check at all.
merge-retrospective/SKILL.md's Step 0 does already attempt a dedupcheck, but its wording ("search that exact phrase plus
label:retrospective") only actually maps tomcp__github__search_issues'scompound phrase+qualifier query shape --
mcp__github__list_issuestakes astructured
labelsarray only, no free-text phrase.search_issuesperforms natural-language semantic matching, not an exact filter (its own
tool description; independently confirmed by issue fix(merge-retrospective): reuse gitapex_scan_retrospective_gate_drift.py's two-signal check in Step 1 #1176, already fixing
the identical class of gap in this same file's Step 1 via open PR fix(merge-retrospective): reuse two-signal gate-resolution check in Step 1 #1196).
require it): PR fix(merge-retrospective): reuse two-signal gate-resolution check in Step 1 #1196 is open, unmerged, and edits this same file's Step 1
only. This PR's own diff is scoped to Step 0 only -- confirmed
non-overlapping by direct read of both step boundaries.
three rows, plus the scope clarifications this required) is recorded in
docs/superpowers/plans/2026-08-18-claude-pr-1197-merge-ready-wp2ldc.md,committed as this branch's first commit.
(mandatory refactor + adversarial-review pass, see Skill Audit Evidence
below); those six plus CodeRabbit's own review round together surfaced
11 real, distinct defects -- all fixed except one (an inherent,
already-accepted disclosure-only limitation) and one deliberately
deferred as a follow-up (pre-existing, unrelated sibling hooks). None
were cosmetic; each is named in its own commit and below.
Assumptions
re-checked against live repo/tool state during planning (see the plan
file above); no row required a correction to its Criterion or
Interpretation.
Acceptance Criteria Map
Independently re-verified against live repo state (see Facts above), not
accepted as pre-verified -- planning-a-branch-from-an-issue's own Step 4 rule.
create_pull_requestwhen another currently-open PR already cites (viaCloses/Fixes/Refs #N) the same issue number the new PR would close, unless explicitly waivedgitapex_check_pr_issue_acm_disclosure.py's ownextract_citationsrather than a third copy; fetch open PRs via the deterministic REST List PRs endpoint (not the semantic Search API); aDuplicate-PR-waiver:body line is the escape hatchhooks/check-pr-duplicate-issue.sh+hooks/gitapex_check_pr_duplicate_issue.py, wired intohooks/hooks.json'smcp__github__create_pull_requestmatcher, registered in.gitapex/ssot.jsongates[]update_pull_request; no coverage for a PR opened outside the agent-mediated path (web UI/gh/API)merge-retrospective's Step 0 dedup check must not rely onsearch_issues's semantic matchinglist_issues(labels:["retrospective"])fetch plus client-side exact string comparison, mirroring issue #1176's own established fix pattern for this file's Step 1skills/merge-retrospective/SKILL.mdStep 0 text only -- no.gitapex/ssot.json/schema changesearch_issues; a worked dry run re-checking the #1069/#1070 and #692/#693 scenarios; a new eval equivalence-class pair (class 10) exercising the exact-match disciplineDedup: {query used}, {N results reviewed}(or explicitDedup: none found) linedrafting-an-acm-issue/SKILL.mdgains a step requiring asearch_issuesquery before drafting, disclosing the query and result count; disclosure-only, no mechanical similarity checkscripts/gitapex_check_acm_present.py; new eval fixture (required once a Stop-boundary bullet is added, pergitapex_gate_skill_branch_fixture_coverage.py)Dedup:line (explicitly accepted by the repo owner) -- including the same text merely quoted from the requester rather than authored by the agent, closed for the two most natural renderings (blockquote, fenced code) but not for plain unquoted prose, which is the same accepted classRisk / blast radius
Confined to: one new PreToolUse hook (network-calling, fail-closed, scoped
to
mcp__github__create_pull_requestonly) and its own test files; aprose-only Step 0 edit in
merge-retrospective/SKILL.md; a new step, a newStop-boundary bullet, an additive script extension, and new eval fixtures
in
drafting-an-acm-issue/andmerge-retrospective/. No schema change,no CI workflow change, no existing gate's behavior modified. Worst case if
the new hook has a residual gap: a duplicate PR is not caught (the same
pre-existing gap this PR closes, not a new failure mode) -- it cannot
itself block a legitimate PR beyond the documented waiver escape hatch.
Residual risk surfaced by the adversarial-review pass and disclosed rather
than fixed here (out of this PR's own scope): three sibling, pre-existing
PreToolUse hooks (
check-pr-issue-acm-disclosure.sh,check-pr-title-convention.sh,check-pr-skill-audit-disclosure.sh) still fail open on the identicaltool_input: falsejq-coalescing shape this PR's own new hook alreadyfixed -- a follow-up issue will be filed for that, since fixing it here
would touch three unrelated files beyond this PR's own diff.
Rollback
git revertthis PR's merge commit. No data migration, no schema change,no other file depends on any of the three additions existing.
Verification
Restated from the Acceptance Criteria Map above, criterion -> proof
method -> result:
gitapex_check_acm_present.py; live-verified against markdown-decoration false-negatives, invisible-Unicode false-positives, and two requester-text-spoofing vectors (blockquote, fenced code -- both found by adversarial review, both fixed)Full local verification, last re-run after merging
origin/maininto thisbranch and trimming the resulting body-length overage (commit
fcf5e8d,see Execution log):
pytest(5255 passed; 1 pre-existing, environment-onlyfailure deselected --
test_repository_workflows_are_drift_freerequiresfull git history this sandboxed shallow clone does not have, confirmed via
git rev-parse --is-shallow-repository->true, unrelated to this diff),ruff check(clean),mypy(all 7 of.github/workflows/test.yml's ownper-directory-group invocations, clean),
gitapex_gate_split_fixture_coverage.py/gitapex_scan_split_schema.py(clean),gitapex_lint_fixture_assertions.pyagainst the full merge-retrospective and drafting-an-acm-issue corpora
(0 warnings each). CI's own
pytest/mypy/codecovchecks confirmed greenon the head commit; one unrelated CI job flaked once (see Execution log)
and passed clean on its one allowed re-run.
Skill audit evidence
Two skills'
SKILL.mdchanged (drafting-an-acm-issue,merge-retrospective);one checker script changed (
skills/drafting-an-acm-issue/scripts/gitapex_check_acm_present.py);one deterministic gate pair was added, registered in
.gitapex/ssot.json(
hooks/check-pr-duplicate-issue.sh+hooks/gitapex_check_pr_duplicate_issue.py).Dispatch-isolation caveat, disclosed once for both skill-quality audits
below, exactly as each dispatched agent itself disclosed it: this sandboxed
sub-agent environment exposes no nested
Agent/Tasktool and blocksclaude -p-style dispatch by default, the isolationbattle-testing-a-skill/evaluating-skill-qualitynormally require to exclude this repository's ownCLAUDE.mdfrom the grading context. Both dispatches independently verifiedisolation via the two-control procedure (a synthetic sentinel file quoted
back correctly; a clean-ancestry negative control correctly returned "none
loaded") rather than assuming a stale registry entry still applied at the
current CLI version, and both confirmed no contamination before grading.
FAIL/gap findings below are treated as robust regardless (extra context
cannot manufacture a defect); WELL-FORMED-NOT-MATURE findings are as
reported by an isolation-verified dispatch, not weakened by the caveat.
battle-testing-a-skill: FAIL (dispatched againstdrafting-an-acm-issue,the more heavily-changed of the two skills -- new Step 6/7,
_DEDUP_RE).21/22 applicable dimensions PASS. Dimension 17 (structured-output
injection) FAILED, live-proven: a requester's own quoted words (Step 3
requires verbatim quoting into Facts) containing text shaped like
Dedup: none foundsatisfied the gate with Step 6's search never run.Two additional main-thread findings from the same dispatch: the validator
initially rejected the skill's own documented Output-section form
(
- **Dedup:** ...), and an in-flight regex edit had widened the samespoofing surface by additionally accepting blockquote (
>) decoration --blockquote being the natural rendering of "quoting the requester's own
words." All three fixed, plus one more found independently by
CodeRabbit review after this audit landed:
_DEDUP_REnow accepts everydocumented decorated form (round-trip regression test), rejects
blockquote-prefixed lines (regression test), and -- the CodeRabbit
finding -- strips fenced code blocks before matching, which an earlier
reply on that thread incorrectly claimed was already true without
having verified it; corrected publicly once actually checked (commit
dce0efa, reply on the thread). The remaining gap (the same text quotedwithout blockquote or fence markup) is not closed -- it is the same
accepted-and-named residual risk this PR's own ACM already states for
this row ("a disclosure-only requirement cannot stop a fabricated Dedup:
line"), not a new one this PR claims to close.
evaluating-skill-quality: WELL-FORMED-NOT-MATURE (dispatchedseparately against each changed skill).
merge-retrospective: Step 0's own hardening reads coherently againstthe rest of the skill; withheld Mature pending the same fixture-coverage
gap this PR's own equivalence-class-10 addition now closes.
drafting-an-acm-issue: step renumbering (6-8 -> 7-9) independentlyre-verified mechanically -- all 23 references resolve correctly, zero
stale citations. 48/48 deterministic shape checks pass. Withheld Mature
for two real, since-fixed gaps: dimension 7, every
main()test calledchecker.main([])with empty argv, leaving the--bodyCLI pathStep 7 documents as canonical -- and both its error handlers -- completely
untested (module coverage 85%, missing exactly those lines); dimension 8,
eval-status.mdstated "10 task files" against an actual count of 12(11 already stale at base, +1 from this PR). Both fixed (commit
f9af156): three new tests bringgitapex_check_acm_present.pyto 100%line coverage;
eval-status.md's count and itsclaude-sonnet-4.6-vs-claude-sonnet-5model-currency claim are corrected to state fact, nota fabricated re-run. Disclosed, not fixed: no cap on repeated autonomous
invocation, since Step 6 is disclosure-only by design and never blocking
-- a looping workflow could file duplicate public issues; and the
pre-existing sidecar drift-scanner findings (
tools-write-vs-skill-md,tools-shell-vs-skill-md), confirmed byte-identical at basea455282,unrelated to this PR.
checker-script-adversarial-review: RAN (againstgitapex_check_acm_present.py). Found 1 Medium (the field-label regexrejected the skill's own decorated Output forms while accepting
invisible-Unicode-only "reasons") and 1 Low defect; both fixed, with
regression tests and a hypothesis-property alphabet update to match.
deterministic-gate-quality: RAN (againsthooks/check-pr-duplicate-issue.sh+hooks/gitapex_check_pr_duplicate_issue.py,read against
skills/evaluating-deterministic-gate-quality/references/dimensions.md).Verdict: not well-formed as first shipped -- two shape checks and the
fail-closed-floor dimension failed, three live-verified defeats: (1) a
JSON-stream-stdin bypass (the shape check validated a JSON stream one
value at a time, deciding on the last, so a real payload with a second
JSON value appended walked the gate to an unconditional
exit 0); (2) adocumented "dual-signal deny" claim that did not match live behavior
(stderr/exit-2 only, confirmed with a real invocation); (3) a hook-runner
timeout budget (45s) smaller than the gate's own documented fail-closed
worst case (up to ~200s) -- a sufficiently degraded GitHub API could
cancel the hook into failing open on exactly the case it exists to
guard, since Claude Code's own hook contract does not block the tool call
on a timeout. All three fixed: the shape check now slurps stdin
before validating (rejects a multi-value stream); the comment corrected
to match live behavior; the timeout budget reconciled (per-request
timeout 20s -> 10s, hook budget 45s -> 130s, worst case now ~115s with
margin). Also fixed: an unterminated markdown fence left a
Duplicate-PR-waiverline inside it unstripped (GitHub renders it ascode to end-of-body; the checker didn't). Disclosed, not fixed: no
re-check on
update_pull_request, no CI-side backstop for a PR openedoutside the agent-mediated path, and the sibling-hooks jq-coalescing bug
(see Risk / blast radius above).
adversarial-coverage-mapping: NOT-RUN --merge-retrospective'sfrontmatter matches this repo's
security|gate|trustkeyword heuristic(via "gate(s)"), but the actual diff to that skill is prose-only Step 0
clarification with no new tool-execution logic or attack surface; the
same Step 0 change already received real scrutiny from the
evaluating-skill-qualitydispatch above, and CodeRabbit's own reviewround (this PR) independently probed the same text and withdrew its own
finding after live verification against this repo's connected
mcp__github__list_issuestool schema.defeat-test-disclosure: RAN -- concrete defeat tests exist for bothchanged detection-logic files, not just happy-path coverage:
hooks/gitapex_check_pr_duplicate_issue.pygained regression tests forthe JSON-stream-stdin bypass, the unterminated-fence bypass, and the
pagination-fail-closed boundary;
gitapex_check_acm_present.pygainedregression tests for invisible-Unicode-only "reasons", the blockquote
spoofing case, and the fenced-code-block spoofing case.
Execution log
PlanApproved--docs/superpowers/plans/2026-08-18-claude-pr-1197-merge-ready-wp2ldc.md, commitfd46164. Authorization: no approval comment exists on issue fix(dedup): add deterministic duplicate-work checks for PRs, retrospective issues, and new issues #1197's own thread (checked directly); the repository owner's own direct request opening this execution pass ("create this PR and proceed to just before merge") names exactly this issue and exactly these gated actions in unhedged imperative language. Authenticated GitHub identity performing this session's writes confirmed viaget_me:tvna(id 31282861), the same account that authored issue fix(dedup): add deterministic duplicate-work checks for PRs, retrospective issues, and new issues #1197 asOWNER.StageDeviated{pr-body, retry}-- the initial submission omitted this repository's own attribution-footer convention, so the platform's own default post-processing appended a session-specific link instead of the generic one. Caught byhooks/check-post-write-provenance.sh's post-write re-scan (issue feat: re-run provenance/placeholder scan against the actually-posted PR/issue body (post-write verification) #878); fixed by an update, replacing it with the generic footer below.TaskCompleted{A, B, C}-- all three ACM rows implemented and committed (ffcef21,9cdceb8,e0742db,fb29a2b).ReviewRoundDispatched{6 agents}-- the mandatory aggregate refactor/adversarial-review pass:checker-script-adversarial-review,battle-testing-a-skillx2 (merge-retrospective, drafting-an-acm-issue),evaluating-skill-qualityx2 (same two skills),deterministic-gate-quality. One dispatch (evaluating-skill-quality/ drafting-an-acm-issue) hit a sustained upstream529 Overloadedcondition and needed well over a dozen resumes across roughly an hour before completing -- resumed each time rather than fabricating a verdict or silently dropping the check.FindingsFixed{11}-- every real defect the six dispatches surfaced was fixed and pushed (commits25458f2,dee2128,dce0efa,f9af156), except one inherent, already-accepted disclosure-only limitation (named in the ACM's own residual-risk cell) and one pre-existing, out-of-diff sibling-hooks bug (filed as a follow-up rather than widening this PR -- see Risk / blast radius).PRBodyCorrected{skill-audit-evidence formatting}-- CodeRabbit's own review (and independent local verification against the gate's exact regex) found the first Skill audit evidence draft wrapped each disclosure line in markdown bold (**\name`: VERDICT**), which the gate's plain-text line pattern does not parse -- fixed to the required plain`name`: VERDICT` form for all six entries, verified programmatically against the gate's own pattern before resubmitting.CodeRabbitThreadsResolved{6}-- every review thread this PR received addressed: 4 resolved during initial implementation (MD018, jq-false, pagination-fail-open,list_issuesstate semantics -- the last one CodeRabbit itself withdrew after verifying this repo's own connected tool schema); 2 resolved during the adversarial-review round (_DEDUP_REarbitrary-content scope, deterministic-gate-quality disclosure -- this section).MergedMainAndFixedDrift{body-length}--origin/mainmerged into thisbranch (
d1bb71f, clean, no conflicts) to pick up PR fix(merge-retrospective): reuse two-signal gate-resolution check in Step 1 #1196's ownnow-merged Step 1 rewrite of the same
merge-retrospective/SKILL.mdfile. The merge-commit view measured 530 lines against this repo's own
BODY_MAX_LINES=500shape gate -- neither branch alone exceeded it, themerge did (
main's own copy alone was 498). Tightened this PR's ownStep 0 prose (meaning unchanged, PR fix(merge-retrospective): reuse two-signal gate-resolution check in Step 1 #1196's Step 1 content untouched) to
494 lines (commit
fcf5e8d); the two specifically-failing shape tests,the full local suite, and CI's own
pytest/mypyjobs all confirmedgreen after. One CI job flaked on that commit
(
test_installs_the_prek_hook_for_a_real_checkout, a 15s subprocesstimeout running
prek installagainst a real ephemeral checkout --passing in this session's own full local run, and unrelated to
anything in this PR's diff); a single re-run (this repository's own
drive-to-green convention allows one, to confirm exactly this class of
failure) passed clean, confirming CI-runner timing rather than a
regression. Also confirmed live:
eval-gateremains red for apre-existing, unrelated reason --
COPILOT_BASE_URLis not configuredas a repository secret (tracked separately in issues test(evals): build cross-model matrix scaffolding (trials bump + model-tier runner) to measure the consistency concept #106 and test(evals): execute the cross-model matrix and record results (close the measurement gap) #124),
not something this PR's diff can fix.
Checklist
skills/*/SKILL.md, adocs/superpowers/specs/*.mddesign doc, a security-relevant skill, or a deterministic checker script (skills/*/scripts/*.py,evals/scripts/*.py,.github/scripts/*.py), a## Skill audit evidencesection discloses the required verdicts/waivers (see.github/scripts/gitapex_gate_skill_audit_disclosure.py)evals/*/split.md, that entry discloses a Transfer check line (see.github/scripts/gitapex_gate_transfer_check_disclosure.py) -- not applicable, no Kept-edit-log entry added (this PR'sevals/merge-retrospective/split.mdchange is a new equivalence class, not an iterative SKILL.md edit gated by that log)skills/*/SKILL.md's Stop-boundary bullets or named dispatch branches,evals//tasks/*.yamlgained at least as many new fixtures (see.github/scripts/gitapex_gate_skill_branch_fixture_coverage.py)Ready for human merge. All three tasks, the mandatory aggregate
refactor/adversarial-review pass, and every checklist item above are done;
CI is green on every check tied to this PR's own diff, including
codecov/patchandcodecov/project(the one remaining red check --eval-gate-- is a pre-existing, credential-provisioning gap unrelated tothis diff, named in Verification above). Per
drafting-a-pr-to-merge's ownstep 9, this PR's own terminal action is establishing the DRAFT state
explicitly (
draft: true) as the signal a human should review and mergeit -- not converting out of draft, and never merged by this session
itself.
Related Issue
Closes #1197
Summary by CodeRabbit
New Features
Documentation
Tests