perf(integrations): depth-cap json configs and harden the serializer walk - #1637
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…onflict A user edit anywhere in a client's config file flipped the integration into a permanent conflict, even when every opencodex-owned fragment was untouched — adding an MCP server to opencode.json was enough, and the only way out was deleting the owned block by hand. The whole-file fingerprint exists so a rewrite never destroys comments or formatting we did not write. For comment-capable formats (yaml, json5, toml) that stays a hard conflict. Strict JSON cannot carry comments — a commented file fails parsing long before classification — so with the owned block verified intact, re-applying can only normalize formatting. Classify that case as stale: the toggle offers a refresh, and apply re-owns the file while merging into the document as it stands, keeping the user's entries. The owned-fragment check now runs before the file-level check so the exemption can never mask an edit inside our block. Fixes lidge-jun#1631 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…rs, after multi-round review Consolidates four adversarial review rounds on the initial commit into the final, focused shape of the fix: - parseConfig scans the raw json text — same posture as the TOML inf/nan guard — and refuses number literals whose value a rewrite would actually change: overflow to Infinity (rewritten as null; the merge layer's JSON clone does it before any serializer could refuse), plain-digit integer runs a BigInt comparison proves were rounded past 2^53 (the one spelling consumers like python's json read with exact integer semantics), and -0, which re-serializes as 0. Exponent spellings and exactly-representable big integers (1e21, 2^54) stay usable end to end — refusing them would only manufacture new dead ends; that decision is pinned in comments and tests. Without this guard, the newly allowed rewrite route would bake silent value changes into files the old conflict refusal used to protect. - disableIntegration's precondition comment now names the real invariant (the block fingerprint, not the file fingerprint), with sibling-survival and refusal mirror tests for disable. - The classifier's module comment revises devlog 021 §3's unconditional whole-file rule for json clients; the preflight refusal message names the non-round-trip value class instead of claiming a valid file 'could not be parsed'; docs (en, zh-tw) describe the behavior including the exception. - Regression tests: readIntegrationState-level sibling drift, openclaw/kimi comment-capable conflicts, scanner lexer edges (bare literal, escaped quotes, -0 spellings), 1e999 refusal and 2^54 symmetry for apply AND disable, re-apply block shape and re-ownership. Deeper hardening surfaced by the same review (nesting depth ceiling, serializer value walk for builder documents) targets pre-existing exposure and follows separately on hardening/json-rewrite-depth. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…walk Follow-up hardening split out of lidge-jun#1632 (review findings on pre-existing exposure the sibling-edit fix did not enlarge — every first apply onto a foreign file always ran through the same rewrite layers): - parseConfig's raw-text scan now also counts container nesting (shared MAX_JSON_NESTING constant with the serializer): JSON.parse handles hundreds of thousands of levels iteratively, but the downstream merge and JSON.stringify recurse — a 100KB file nested 50k deep sailed through parse, then blew up serialization with a raw RangeError after a multi-GB allocation spike. Measured post-fix: PARSE_FAILED in 3ms, no spike. - serializeDocument('json') gains a value-safety walk for builder/preview documents (non-finite → null and -0 → 0 are the only values serialization itself damages; anything stricter re-created the recoverable-but-refused asymmetry lidge-jun#1632 closes). Iterative frames keep memory proportional to nesting depth instead of ~18x the document size a node stack cost, and the walk enforces the same ceiling as the scanner, with clamped paths in refusal messages. - Boundary pins: exactly 1000 levels parse AND serialize (one document through both layers), 1001 refuses on both, brackets inside strings do not count, clamp shape (head…tail) asserted. Based on lidge-jun#1632; review only the last commit until that lands. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Path: .coderabbit.yaml Review profile: ASSERTIVE Plan: Pro Plus Run ID: 📒 Files selected for processing (8)
📝 WalkthroughWalkthroughStrict JSON integrations now validate numeric, duplicate-key, and nesting safety before rewrites. Unrelated sibling edits produce ChangesStrict JSON rewrite safety
Estimated code review effort: 4 (Complex) | ~45 minutes Mergeability Score: ⚪ Minimal · up to The change caps deeply nested JSON and rejects serializer-unsafe values to prevent resource exhaustion and silent data alteration; no actionable merge-blocking risk remains after normal checks and review. Possibly related PRs
Suggested labels: Suggested reviewers: 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Actionable comments posted: 5
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Inline comments:
In `@src/integrations/config-io.ts`:
- Around line 98-101: In the "json" branch, call jsonTextSafeToRewrite(text)
before JSON.parse and return PARSE_FAILED immediately when the scan rejects the
document; only parse text that passes the guard, preserving the existing catch
behavior for invalid JSON.
- Around line 67-74: Update the numeric-literal validation around the
Number(literal) conversion to reject positive exponent underflow: when value is
zero, inspect the significand before the exponent and return false if it is
nonzero, while retaining valid exact-zero forms such as 0e10 and existing
negative-zero rejection. Do not reject representable subnormals such as 1e-320.
In `@src/integrations/state.ts`:
- Around line 197-217: Update jsonTextSafeToRewrite to track member names within
each open JSON object and return PARSE_FAILED when a duplicate key is
encountered, preventing stale rewrites from silently dropping earlier members.
Add a regression covering apply on duplicate-key JSON that verifies the
operation is refused and the file bytes remain unchanged.
In `@src/integrations/writer.ts`:
- Around line 216-217: Update the refusal descriptions to accurately cover
non-finite numbers, large integers that a rewrite would round, -0, and nesting
deeper than 1000 levels: adjust src/integrations/writer.ts lines 216-217, add
the depth cause and reword the integer cause in src/integrations/state.ts lines
203-208, and make the equivalent English and Traditional Chinese documentation
updates in docs-site/src/content/docs/guides/integrations.md lines 72-74 and
docs-site/src/content/docs/zh-tw/guides/integrations.md line 40.
In `@tests/integrations-writer.test.ts`:
- Around line 154-158: Extract the repeated Pi setup into an installPi() helper
near installHermes(), returning the resolved configPath after creating the
detection and config directories. Replace each duplicated Pi setup block in the
affected tests with installPi(), preserving the existing test behavior.
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📒 Files selected for processing (9)
docs-site/src/content/docs/guides/integrations.mddocs-site/src/content/docs/zh-tw/guides/integrations.mdsrc/integrations/config-io.tssrc/integrations/serialize.tssrc/integrations/state.tssrc/integrations/writer.tstests/integrations-serialize.test.tstests/integrations-state.test.tstests/integrations-writer.test.ts
…edits-not-conflict
…egrations guide The Turkish translation landed on dev after this branch changed the English and zh-tw paragraph, so tr/ still described the old fail-closed rule for strict-JSON clients. Mirrors the canonical wording 1-to-1. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
…g/json-rewrite-depth
…on rewrite
Two gaps CodeRabbit found in the guard this PR introduces, both invisible in
the parsed document and both reachable only because classify now hands a
user-edited strict-JSON file to apply instead of conflicting forever:
- 1e-9999 underflows to +0, so the rewrite wrote 0. The significand now
decides, keeping genuine zero spellings (0, 0.0, 0e10) and subnormals.
- {"a":1,"a":2} parses to a single member, so the rewrite DELETED the
earlier one while reporting success. The scanner now tracks decoded member
names per open object.
Also corrects four texts that named 'an integer past 2^53' as a refusal cause
when 2^54 is accepted (our own test applies with it), and the docs claim that
YAML always locks — OMP patches only its own range and is exempt in
classifyIntegration.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
…e parsing Merges the underflow and duplicate-member guards from lidge-jun#1632 into the same single pass (the container stack now carries both the member names and the nesting depth), and applies two CodeRabbit findings that belong to this PR: - The scan runs BEFORE JSON.parse. It never needed the parsed value, and a 50k-deep document was being fully materialized just to be discarded. - tests: extract installPi(), which was copy-pasted seven times, matching the installHermes()/installOmp() shape the file already uses. The refusal texts and all three doc locales now name the depth cause too. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Thanks — all six findings were correct. Two of them are this PR's and are fixed in Scan before
Depth in the refusal texts — added, in the preflight message and in all three doc locales. One thing worth flagging from merging the base: the new duplicate-member guard and this PR's depth counter collapsed into a single pass. The container stack that tracks member names per open object has a length that is the nesting depth, so there is one walk with one ceiling rather than two overlapping scans. Full |
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The readiness gate is complete, and the 🧠 Learnings usedYou are interacting with an AI system. |
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The code-level hardening is sound.
The regression coverage is meaningful: The release blocker is verification state, not code: both Cross-platform CI and React Doctor for exact head DISPOSITION: NEEDS-CHANGE |
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Thanks for the careful hardening here. This is useful because deeply nested or otherwise non-round-trippable JSON can no longer turn an integration update into a huge allocation spike, raw Merged after Cross-platform CI and React Doctor passed. Thanks! |
3 participants
Summary
parseConfig's raw-text scan for json now also counts container nesting against a sharedMAX_JSON_NESTING(1000), and the scan runs beforeJSON.parse(CodeRabbit) — it never needed the parsed value, and scanning first means the hostile document is refused instead of materialized.JSON.parsehandles hundreds of thousands of levels iteratively, but the downstream merge clone andJSON.stringifyrecurse: measured ondev, a 100KB file nested 50k deep passed parse, then died in serialization with a rawRangeErrorafter a ~3.6GB allocation spike. Post-fix:PARSE_FAILEDin 3ms, no spike. Brackets inside strings don't count.serializeDocument('json')refuses exactly the two values serialization itself damages — non-finite (written asnull) and-0(written as0). Anything stricter re-created the recoverable-but-refused asymmetry fix(integrations): classify a json sibling edit as stale instead of conflict #1632 closes (pinned by test). The walk uses iterative frames — memory stays proportional to nesting depth; a naive node stack cost ~18x the document size (measured: 1914MB → ~25MB for a 10M-number document) — and enforces the same nesting ceiling as the scanner, with clamped paths in refusal messages.Stacked on #1632 — review only the last commit until that lands; the first two commits are #1632's.
Verification
bun test tests/integrations-state.test.ts tests/integrations-serialize.test.ts tests/integrations-writer.test.ts tests/integrations-invariants.test.ts tests/integrations-journal.test.ts tests/management-integration-routes.test.ts— 209 pass, 0 fail.bun run typecheck— clean.bun -eharnesses against these exact layers (parseConfig → merge clone → serializeDocument) on Bun 1.3.14/JSC, macOS arm64.bun run prepushagainst this exact head — full gate passed: typecheck clean, 11591 pass / 8 skip / 0 fail across 719 files (532s), privacy scan passed.Checklist
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All CI tests are green on my local testing.
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Summary by CodeRabbit
New Features
Bug Fixes
Documentation