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fix(catalog): stop routed rows inheriting the template's comp_hash - #5802
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Routed rows are cloned from whichever native row a rebuild picks as the template, and they kept its comp_hash. The template can change between rebuilds that touch nothing routed, and Codex compacts a thread whenever the comp_hash of consecutive turns differs, so every active routed thread compacted on its next turn. The clone now drops comp_hash beside the context window, and normalization gives the row the "opencodex" marker. Codex-forward capability aliases and account-bound native rows keep the native value. Closes lidge-jun#5796
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Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review. 📝 WalkthroughWalkthroughRouted catalog entries no longer retain an unrelated native template’s ChangesRouted catalog comp_hash
Priority: ➖ Normal Estimated code review effort: 2 (Simple) | ~10 minutes Change: Bug fix · Severity of issue fixed: Medium Merge Risk: 🔵 Low · up to The change is mergeable with owner awareness: a legacy Codex-forward row may compact a thread once during degraded provider discovery. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The change makes routed-model catalog values stable across rebuilds. It may cause a one-time compaction for an existing thread whose previous turn recorded a different value, but the review found no new access path or material security-control change. Retained concerns Security review detailsSecurity Blast Radius
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Inline comments:
In `@structure/catalog.md`:
- Around line 61-62: Update the `comp_hash` guarantee in the catalog
documentation to apply only to newly derived routed rows that are not
Codex-forward aliases. Clarify that Codex-forward aliases and retained
application-owned rows may keep an earlier hash; do not imply this change
normalizes retained rows.
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scripts/test-layout/layout.jsonsrc/codex/catalog/derive-entry.tsstructure/catalog.mdtests/codex-integration/catalog-routed-comp-hash.test.tstests/fixtures/test-layout-expected.json
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A provider whose discovery is degraded keeps its routed rows from the catalog on disk. Those rows skip deriveEntry, so one written before the previous commit could still carry a template's comp_hash until the provider recovered. The merge now sets "opencodex" on the opencodex rows it keeps. Custom rows, Codex-forward aliases included, are rebuilt from config and never reach that pass, and rows written by other tools keep their own value.
abhisheksharma2411
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Hi @FredAmartey — good catch, and the causal chain in the summary is the useful part: template choice varies with rebuild order → comp_hash moves → Codex compacts every active routed thread. That's the kind of bug that looks like flaky behaviour until someone traces it.
Verified the mechanism rather than assuming it. delete e.comp_hash only helps because normalization fills the gap:
// parsing.ts:634
if (typeof entry.comp_hash !== "string") entry.comp_hash = "opencodex";So a deleted field becomes the stable marker rather than staying absent. Worth knowing those two lines are a pair — a future change that makes normalization preserve undefined would silently reopen this.
Also checked the gating, since it looked like it might be too narrow:
if (!codexForwardNativeCapabilityAlias) { … delete e.comp_hash; }The forward-alias path still inherits, and that's right — the comment two blocks down says "This exact provider/model pair is the ChatGPT/Codex forward surface", so it's a pinned row rather than "whichever native row a rebuild found first". The instability the fix targets doesn't apply there. Not a gap.
The suggestion
This is the second field in that block to need deleting for the same reason — context_window and friends went for #992, comp_hash goes now. The shared shape is: a field that normalizeRoutedCatalogEntry doesn't own, which normalization would default correctly if it were absent, but which isn't absent because it came in on the clone.
Your test pins comp_hash. A test one level up would pin the whole class:
build the same routed row from two different native templates, and assert the resulting entries are identical.
That fails today for comp_hash, would have failed in #992 for the context fields, and fails automatically for whatever the third one turns out to be — without anyone having to notice the pattern again. The templates differing in the field under test is exactly the condition that makes the bug appear, so it's a faithful reproduction rather than a synthetic one.
Cheap to add alongside what you have, and it converts "we found another one" into "CI found another one".
catalog-routed-comp-hash.test.ts passes locally. Nothing blocking.
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The kept-row case is in |
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Approved on exact head b508258ed14f8fac5e374dcdb00fe435ff185c03.
Newly derived routed rows no longer inherit a native template's moving comp_hash, and degraded-discovery recovery normalizes only retained OpenCodex-authored routed rows. Codex-forward aliases and foreign rows remain untouched.
Focused validation under a 2-CPU / 4 GiB cgroup passed: 2 tests, 0 failures. The regression covers both template-independent derivation and retained rows during provider outage. I found no remaining blocker.
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Summary
deriveEntryalready drops the template's context-window fields for them ([Bug]: Routed models inherit native template context_window when /models omits context metadata #992). It kept the template'scomp_hash, so a routed row carried whatever the chosen native row had:"3000"from a current snapshot, or"opencodex"when the template came from an older catalog backup without the field and normalization filled in its default."3000"and"opencodex". Codex compacts a thread before its next turn when thecomp_hashrecorded for the previous turn and the current one are both set and differ ([codex] Compact when comp_hash changes openai/codex#27520), so each flip compacted every active routed thread, at 12 to 30% context fill in the report.comp_hashbeside the context window, so normalization gives the row the same"opencodex"marker it already gives any row without a hash. The value no longer depends on the template. The 110 closure notes list "routed normalization also needed to strip nativecomp_hash" as done in 100.4, but neither commit they cite touches the field.deriveEntry. While a provider's discovery is degraded, the merge keeps that provider's rows as the catalog last wrote them, so a catalog written before this fix could keep"3000"on them until the provider recovered. The merge's pass over kept rows now sets"opencodex"on opencodex rows. Custom rows, Codex-forward aliases included, are rebuilt from config and never kept, and rows written by other tools keep their own value."opencodex"differs from a native row's own hash, so moving one thread between a native model and a routed one compacts at the switch. Before, that depended on which template the last rebuild used. A routed thread whose last turn recorded a native value such as"3000"compacts once on its first turn after the upgrade.structure/catalog.md.Closes #5796
Verification
On
devated181a0d0, the base of this PR, with the pinned Bun 1.4.0 (node_modules/.bin/bun), at headb508258ed:tests/codex-integration/catalog-routed-comp-hash.test.ts. The first builds the catalog from templates carrying"3000","2911"and nocomp_hash, and expects"opencodex"on the routed row each time; before the first commit it returned"3000". The second keeps a routed row carrying"3000"through a merge with its provider's discovery degraded and expects"opencodex"; before the second commit it returned"3000". A row another tool wrote under the same provider must keep"3000", and a deliberately broken build that resets every kept row fails that assertion.comp_hash(codex-catalog,codex-catalog-sync-hardening,catalog-full-picker-order,catalog-retain-models,reserve-catalog,codex-v2-gate,codex-catalog-ladders,codex-tool-mode): 601 pass, 0 fail.tests/test-layout.test.ts,tests/test-layout-tooling.test.tsandtests/ci-workflows/file-size-ratchet.test.ts: 27 pass, 0 fail.scripts/ci/run-bun-test-batches.shshards CI since ci: release preflight, separate release outcomes, duration-balanced shards, narrow scope checks #5653 (duration-balanced batches of at most 12 files,bun test --isolate --timeout 60000,CI=true): every batch of shards 1/4 to 4/4 across 1638 files, past failing batches, the four shards in parallel on one macOS machine with a 300 s kill deadline per batch. The machine was shared with another heavy job (load average between 140 and 450). 29903 pass and 8 fail, and two batches hit the deadline.codex-catalog.test.ts), and so does the batch ofcodex-shim.test.ts, which had 3 failures in the parallel run.codex-runtime.test.ts(treats missing persisted and resolved versions as the same selection) and the provider-option integration spine inopenai-provider-option-e2e.test.tsfail the same way on untoucheddevated181a0d0when run alone.codex-shim-destroyed-probe.test.tspasses alone on this head and ondev.ci-review-lanes.test.tspasses alone on this head and hit its 30 s test timeout alone ondev. The stall-observer case inmacos-serial-lanes.test.tsfailed alone on both at that load.bun run typecheck,bun run structure:check,bun run privacy:scanandgit diff --check: passed.Checklist
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Summary by CodeRabbit
opencodexmarker instead of inheriting a marker from the selected native template. This keeps the displayed catalog data consistent across different templates, including when the template has no marker set.