fix(pagingsweepcheck): the whereis (G) pair compared two reads of a ref namespace every session writes - #206
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…ef namespace every session writes Arm (G) demands byte-identity between two cold runs of `--whereis=rankGraph --limit=3 --offset=3`. --whereis's input is not only the corpus's files: it is every refs/heads of the repository ENCLOSING the crawl root. On $ROOT that is the checkout's shared .git, which every worktree and every session on the machine writes, and which pargates' tree tripwire cannot see (a ref write is not a `git status` line). A full pargates run on 2026-09-12 failed only this arm; run alone, the gate passed 335/335. In five hand-run cold pairs one differed: refs_scanned= "302" vs "303", blobs 7335 -> 7336, hits 93115 -> 93526, the rows otherwise identical. The verb answered correctly both times. The row now runs on the gate's own paging fixture (already built for --mentions and --stray-content), whose refs nothing but the gate writes, as --whereis=renderWidget. That keeps every branch the arm took over rankGraph: 90 hits exceed the 60-hit default cap, so (E) still checks the CUT posture (M2), and the rows (C) and (G) page through are still HEAD's index-labelled rows. The pair still compares every byte; stripping refs_scanned=/blobs=/hits= instead would have kept it green by comparing less. A guard asserts that (G)'s exact page scans refs_scanned="8", the fixture's 8 stray branches. A control creates a branch in the fixture, requires refs_scanned="9" on that same page, and requires that deleting it restores every byte. It branches at stray1, not HEAD: a ref whose tip is HEAD's commit is not scanned at all (probed), so a control there would change nothing. The same shape in the same file is removed rather than left (CONTRIBUTING §2 rule 5): section (I)'s differential against RIPWIRE_PREBIN compared --whereis and --stray-content across two reads of $ROOT's refs, and both now run on the fixture. GIT_DIR/GIT_WORK_TREE/GIT_INDEX_FILE are unset (inherited from a hook, they would aim the fixture's git calls and the ref scans at the caller's repository), and the fixture sets core.hooksPath=/dev/null. Red/green. A shim stood in for BIN and, after chosen runs, created a branch in a --shared scratch clone the gate ran from, never in the real .git. Firing after each cold --whereis run: the stock gate exits 1 with exactly one FAIL, "whereis: paged page NOT deterministic" (334 PASS); the fixed gate exits 0, 336 PASS. Firing after EVERY binary call, with branches carrying a divergent commit and RIPWIRE_PREBIN pointed at the shim so (I) runs: the stock gate exits 1 with exactly three FAILs of 357 arms, the (G) whereis pair and (I)'s --whereis and --stray-content (297 branches created); the fixed gate exits 0, 358 PASS (300 created). Mutations, in place in a third clone: (G)'s page aimed back at $ROOT reds the guard with refs_scanned="0"; the control branched at HEAD reds the control. In this checkout the gate exits 0, 336 PASS. Gate count unchanged at 606; manifestcheck passes; quality-delta is clean. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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WalkthroughThe paging sweep gate isolates ref-sensitive checks in its fixture. It adds ChangesPaging sweep validation
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Bug fix Merge Risk: ⚪ Minimal · up to The paging-sweep fixture changes are ready to merge based on the available review context. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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Inline comments:
In `@test/pagingsweepcheck.sh`:
- Around line 107-120: Extend the existing environment cleanup before
mkPagingFixture runs to also unset GIT_COMMON_DIR, alongside GIT_DIR,
GIT_WORK_TREE, and GIT_INDEX_FILE, so fixture creation and ref scans use only
the intended repository refs.
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test/pagingsweepcheck.sh
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…ects refs even when GIT_DIR is unset CodeRabbit (#206, test/pagingsweepcheck.sh:120): an inherited GIT_COMMON_DIR could aim the paging fixture's git calls and the --whereis/--stray-content ref scans at the caller's repository. cd "$ROOT" also exits 2 if it fails (SC2164). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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… PR #207 — kParserVer stays 95 over main's 94, absorb loop unioned Four conflicts, all generated or list-shaped: the absorb loop and the published gate count. No Elixir, focus-resolution or disclosure logic conflicted. - test/regression.sh: main's re-sorted loop kept (#200 adds noaliascheck), elixirsemanticcheck and elixirnamearitycheck inserted at their sorted places — 608 at the last merge + 1 + 2 = 611. Every line outside the loop is identical on base, branch and main. - README.md, docs/EVALS.md, present/deck5_ripwire_build.js: the conflict hunks differed only in the marked count; regenerated by docs/gatecount_build.py (611 at 8 sites). The branch's Elixir language paragraph and #204's README rewrite merged clean beside them. - CHANGELOG.md merged clean: the Elixir entry (parser version 95) and the two VERIFY_NO_ALIAS entries (#200, #201) all kept. Clean text merges read hunk by hunk, because a clean merge is not a clean population: - src/graph.h: #210's resolveFocus keeps the lowest id except a bodyless C/C++ pick, which yields to a same-scope bodied C/C++ match; it projects resolveAllByNameQualified, whose name test the branch widened to elixirNameMatches. An Elixir focus therefore keeps the lowest-id pick and a C/C++ focus keeps #210's. - src/editcheck.h: #210's unprovenDefs parameter and the branch's EditCheckCalleeTest touch different hunks of editCheckBundleText and compose. - src/verbs_navigate.h, src/mcpverbs.h, src/verbs_for.h: #210 threads the H1 out-param through --slice/--connect/--around/--lego/edit_check; the branch's Elixir use-site path calls resolveAllByNameQualified with two arguments, so the defaulted out-param stays zero there, as before. - src/ingest_cache.h, src/ingest_parsepool.h: #201's VERIFY_NO_ALIAS lines, away from the branch's hunks. Version constants did not conflict: kParserVer 95 with quality.h's mirror 95, kCacheVersion 21, kQSnapCacheScheme 11 (main still 10). Source-hash pins and binary-derived outputs are checked against a clean build of this commit; any that move land as separate commits. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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What was wrong
Arm (G) of
test/pagingsweepcheck.shrequires byte-identity between two cold runs of--whereis=rankGraph --limit=3 --offset=3.--whereisreads everyrefs/headsof the repository enclosing thecrawl root. On the live checkout that is the shared
.git, which every worktree and every session writes, andpargates' tree tripwire cannot see a ref write. A branch created between the two runs moved
refs_scanned=(302 → 303),
blobs=,hits=/total=and<more hits=>, and the arm reported "paged page NOT deterministic"about a verb that answered correctly both times. A full
pargates.pyrun on 2026-09-12 failed only this arm; runalone, the gate passed 335/335. #186 fixed the same class in
dispatchordercheck.The fix
--mentionsand--stray-content, as--whereis=renderWidget. Nothing but the gate writes refs there. The arm takes the same branches as before: thebare run is still capped (90 hits against the 60-hit cap), and (C) and (G) still page through HEAD's
index-labelled rows. (G) still compares every byte; no attribute is stripped.
refs_scanned="8", the fixture's branch count. Control: a branch created inthe fixture must reach that page (
refs_scanned="9"), and deleting it must restore every byte. The controlbranches at
stray1, not HEAD, because--whereisdoes not scan a ref whose tip is HEAD's commit.RIPWIRE_PREBINdifferential compared--whereisand
--stray-contentacross two reads of the shared refs. Both now run on the fixture.GIT_DIR,GIT_WORK_TREEandGIT_INDEX_FILE, and the fixture setscore.hooksPath=/dev/null.One test file changes. No gate is added or removed; the count stays 606.
Evidence
A stand-in binary ran the real one, then created a branch in a
--sharedscratch clone the gate ran from, neverin the real
.git.--whereisrunRIPWIRE_PREBINset so (I) runs--whereis, (I)--stray-contentrefs_scanned="0")Re-verified after rebasing onto 486a01b, with a clean rebuild. The gate passes in place (336 PASS). Under the
targeted adversary, main's stock gate exits 1 with only the (G) whereis failure, and this branch exits 0 (336 PASS).
python3 docs/gatecount_build.py --root . --checkandpython3 docs/limits_build.py --checkboth return 0.🤖 Generated with Claude Code