feat(core): token and compression metrics for high-volume read tools (#990)#1077
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Adds provider-neutral estimated token and output-size metrics for crawl, crawl_sitemap, read_page, and validate_page so optimization claims can be verified without changing legacy responses by default.\n\nConstraint: Metrics must be opt-in for text surfaces and approximate rather than provider-specific.\nRejected: Exact tokenizer integration | would add dependency and overstate provider compatibility.\nConfidence: high\nScope-risk: narrow\nDirective: Keep strict compression-ratio gates on committed fixtures, not public live pages.\nTested: npm run build -- --pretty false; npm test -- --runInBand tests/core/metrics/token-estimate.test.ts tests/core/tools/crawl.engine.test.ts; npm run lint:changed\nNot-tested: Full npm test suite; live OpenChrome smoke.
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Constraint: #1077 already covers read_page/crawl/validate metrics, so this stacked slice only adds inspect support on top of that open metrics branch.\nRejected: Reimplementing #981 read_page response telemetry on develop | would duplicate open PRs #1063 and #1077.\nConfidence: high\nScope-risk: narrow\nDirective: Keep include_metrics opt-in and provider-neutral; do not imply exact LLM billing.\nTested: npm test -- --runInBand tests/tools/inspect-metrics.test.ts; npm run build; npm run lint:changed; git diff --check\nNot-tested: Live OpenChrome MCP smoke; dependency npm audit still reports existing 6 vulnerabilities.
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| const includeMetrics = args.include_metrics === true; | ||
| const modeForMetrics = typeof args.mode === 'string' ? args.mode : 'dom'; |
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When security.sanitize_content is set to false, this wrapper returns early before the new include_metrics logic runs, so read_page silently ignores include_metrics: true in that configuration. This creates environment-dependent behavior for the same tool arguments and makes the new metrics option unavailable in deployments that intentionally disable sanitization.
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| : p.content, | ||
| })); | ||
| outputJson = JSON.stringify({ summary, pages: truncatedPages }, null, 2); | ||
| outputJson = JSON.stringify(buildOutput(truncatedPages), null, 2); |
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The new metrics path is only applied in the first two serialization attempts; if output is still too large and the minimal-page fallback is used, the response is built from plain { summary, pages } and drops summary.metrics/per-page metrics even when include_metrics is true. This makes the flag non-deterministic for large crawls, which is exactly the high-volume scenario this feature targets.
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openchrome/src/tools/crawl-sitemap.ts
Line 755 in ede04f4
Preserve metrics in crawl_sitemap size-fallback response
When include_metrics is true and the sitemap output exceeds MAX_OUTPUT_CHARS, the final fallback serializes { summary, pages: minimalPages, note } directly, which drops summary.metrics and all per-page metrics. This makes the same request return different schemas depending on payload size, and removes the very metrics callers requested in high-volume cases.
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| cleaned['_sanitization'] = unique.join('; '); | ||
| } | ||
| if (includeMetrics) { | ||
| cleaned['_metrics'] = buildTextMetrics(JSON.stringify(cleaned), { mode: modeForMetrics }); |
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In semantic mode, _metrics is derived from JSON.stringify(cleaned) before _metrics is added to cleaned, and then the object is serialized again for output. As a result, returned_chars and estimated_tokens systematically under-report the actual returned text whenever include_metrics is enabled, so consumers get inaccurate size/token numbers.
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| text: includeMetrics | ||
| ? appendMetricsFooter(text, buildTextMetrics(text, { mode: modeForMetrics })) |
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The new include_metrics behavior is implemented only inside the sanitization pass, so callers who run with security.sanitize_content=false (via --no-sanitize-content) never get metrics even when they explicitly set include_metrics: true. Because sanitizedHandler returns early before this branch in that configuration, the feature is silently disabled in a supported runtime mode, which makes responses inconsistent and breaks metric collection for those deployments.
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openchrome/src/tools/crawl-sitemap.ts
Lines 754 to 756 in beb6b89
Preserve include_metrics in crawl_sitemap size-fallback output
When include_metrics: true and the sitemap response still exceeds MAX_OUTPUT_CHARS after truncation, this fallback rebuilds the payload as { summary, pages: minimalPages, note } and bypasses buildOutput, so both summary/page metrics are silently dropped. This violates the tool contract (include_metrics should include metrics in the JSON result) specifically for high-volume responses, which is exactly where callers are most likely to request metrics.
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Adds provider-neutral estimated token and output-size metrics for crawl, crawl_sitemap, read_page, and validate_page so optimization claims can be verified without changing legacy responses by default.\n\nConstraint: Metrics must be opt-in for text surfaces and approximate rather than provider-specific.\nRejected: Exact tokenizer integration | would add dependency and overstate provider compatibility.\nConfidence: high\nScope-risk: narrow\nDirective: Keep strict compression-ratio gates on committed fixtures, not public live pages.\nTested: npm run build -- --pretty false; npm test -- --runInBand tests/core/metrics/token-estimate.test.ts tests/core/tools/crawl.engine.test.ts; npm run lint:changed\nNot-tested: Full npm test suite; live OpenChrome smoke.
The schema-lint pipeline reads the introspection JSON through a pipe, so exiting immediately after one large stdout write can truncate manifests near the pipe buffer boundary. Chunking the output and waiting for drain preserves the no-Chrome introspection contract while keeping normal serve startup untouched. Constraint: CI invokes node dist/index.js serve --introspect-tools-list | node scripts/lint-tool-schemas.mjs -. Rejected: Increasing schema lint tolerance | it would hide a transport-level truncation bug instead of preserving valid JSON. Confidence: high Scope-risk: narrow Directive: Keep introspection free of Chrome/CDP startup and preserve JSON-only stdout. Tested: npx tsc -p tsconfig.json --pretty false; npm run lint:tool-schemas. Not-tested: Full GitHub Actions matrix before push.
The include_metrics option should behave consistently when sanitization is disabled, semantic output is reserialized, and crawl falls back to minimal large-result payloads. Constraint: Codex review flagged environment-dependent read_page metrics and dropped crawl fallback metrics as P2 issues. Rejected: Documenting these as edge cases | include_metrics is an explicit caller contract and should not silently disappear. Confidence: high Scope-risk: narrow Directive: Metrics must describe the final returned payload shape, not an intermediate serialization attempt. Tested: npx tsc -p tsconfig.json --pretty false; npx jest --config jest.config.js --runInBand tests/core/metrics/token-estimate.test.ts tests/core/tools/crawl.engine.test.ts tests/tools/read-page.test.ts. Not-tested: Full GitHub Actions matrix before push.
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openchrome/src/tools/crawl-sitemap.ts
Lines 754 to 756 in 1225b20
Preserve include_metrics in crawl_sitemap size-fallback output
When include_metrics is true, the first two output paths include summary.metrics and per-page metrics, but the final size-fallback path (Content omitted due to size constraints) drops them entirely. This makes the response shape depend on output size rather than the include_metrics contract and will break callers that request metrics on large sitemap crawls.
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| for (let i = 0; i < 3; i++) { | ||
| payload['_metrics'] = buildTextMetrics(JSON.stringify(payload), { mode: modeForMetrics }); | ||
| } |
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The semantic metrics loop runs a fixed 3 iterations, which can leave _metrics.returned_chars and _metrics.estimated_tokens inconsistent with the actual serialized payload. For example, with a small semantic JSON payload like {"x":"a"}, the final JSON length can be 101 while _metrics.returned_chars remains 100 (and token estimate is off by one). Since this feature is explicitly for output-size/token accounting, these mismatches undermine metric correctness.
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Constraint: Codex review found fixed-iteration semantic metrics could disagree with final serialized payload size.\nRejected: Dropping semantic inline metrics | callers requested machine-readable size accounting for semantic mode.\nConfidence: high\nScope-risk: narrow\nDirective: Token metrics must describe the exact payload returned to the client, including metrics metadata.\nTested: npx tsc -p tsconfig.json --pretty false; npx jest --config jest.config.js --runInBand tests/core/metrics/token-estimate.test.ts tests/core/tools/crawl.engine.test.ts tests/tools/read-page.test.ts; npm run lint:tool-schemas\nNot-tested: full CI matrix\n\nCo-authored-by: OmX <omx@oh-my-codex.dev>
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| : p.content, | ||
| })); | ||
| outputJson = JSON.stringify({ summary, pages: truncatedPages }, null, 2); | ||
| outputJson = JSON.stringify(buildOutput(truncatedPages), null, 2); |
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When include_metrics is true and the sitemap response still exceeds MAX_OUTPUT_CHARS after truncation, the final minimalPages branch serializes { summary, pages, note } directly and drops all metrics fields. This makes include_metrics unreliable specifically on high-volume crawls (the main case where users need these numbers), unlike the crawl tool which preserves metrics in its equivalent fallback path.
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| compression_ratio: returnedText.length > 0 | ||
| ? Number((rawText.length / returnedText.length).toFixed(3)) | ||
| : rawText.length === 0 ? 1 : Number.POSITIVE_INFINITY, |
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buildRawTextMetrics returns Number.POSITIVE_INFINITY when rawText is non-empty and returnedText is empty. If this metrics object is serialized to JSON (as tool outputs are), Infinity is coerced to null, so consumers silently receive a non-numeric ratio and lose the intended signal. Use a JSON-safe sentinel (for example a string or explicit nullable contract) instead.
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Constraint: Codex review found crawl_sitemap dropped metrics in the final size fallback and manifest chunking was UTF-16 based.\nRejected: Omitting metrics for minimal fallback | include_metrics callers still need accounting when content is omitted.\nConfidence: high\nScope-risk: narrow\nDirective: Token metrics must survive truncation/fallback paths and manifest output must be byte-safe.\nTested: npx tsc -p tsconfig.json --pretty false; npx jest --config jest.config.js --runInBand tests/core/metrics/token-estimate.test.ts tests/core/tools/crawl.engine.test.ts tests/tools/read-page.test.ts; npm run lint:tool-schemas\nNot-tested: full CI matrix Co-authored-by: OmX <omx@oh-my-codex.dev>
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| returned_chars: pages.reduce((sum, p) => sum + p.content.length, 0), | ||
| estimated_tokens: pages.reduce((sum, p) => sum + buildTextMetrics(p.content).estimated_tokens, 0), |
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When crawl_sitemap exceeds MAX_OUTPUT_CHARS and falls back to the note: "Content omitted due to size constraints" path, this block still computes summary.metrics.returned_chars and estimated_tokens from the original full page contents. In that scenario the response actually omits all page content (and per-page metrics are built from empty strings), so the summary metrics no longer describe what was returned and can mislead token-budget/regression checks that rely on returned_chars/estimated_tokens.
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Constraint: Codex P2 found minimalSummary metrics described full pages while the emitted minimal-fallback payload omits content. Rejected: Computing metrics from outputJson size | per-page metrics are already zero-derived, so the summary should match the per-page invariant. Confidence: high Scope-risk: narrow Directive: include_metrics must describe what callers actually receive, not source content. Tested: npm run build; npx jest --runInBand tests/core/metrics/token-estimate.test.ts tests/core/tools/crawl.engine.test.ts tests/tools/read-page.test.ts Not-tested: full CI matrix
# Conflicts: # src/tools/crawl.ts # src/tools/read-page.ts # tests/core/tools/crawl.engine.test.ts
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| ...block, | ||
| text: sanitized.text + sanitized.sanitizationNote, | ||
| text: includeMetrics | ||
| ? appendMetricsFooter(text, buildTextMetrics(text, { mode: modeForMetrics })) |
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When include_metrics is enabled, read_page builds metrics from the final text but does not pass an explicit truncated flag, so detection falls back to text.includes('...[truncated]'). read_page truncation paths emit markers like [Output truncated ...] (and DOM serializer uses [Output truncated at ...]), so clipped responses are reported as truncated: false. This gives incorrect truncation telemetry in the exact large-output scenarios these metrics target.
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| }, | ||
| pages: minimalPages.map((p) => ({ | ||
| ...p, | ||
| metrics: buildTextMetrics('', { mode: outputFormat }), |
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In the size-constraint fallback (note: "Content omitted due to size constraints"), page metrics are built from empty strings, which sets truncated: false by default. This makes per-page metrics claim pages were not truncated even though content was explicitly removed, and it conflicts with summary.metrics.truncated_pages in the same payload. Consumers deriving truncation from page metrics will undercount to zero.
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| links_found: p.links_found, | ||
| content_length: p.content.length, | ||
| error: p.error, | ||
| ...(includeMetrics && { metrics: buildTextMetrics('', { mode: outputFormat }) }), |
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The minimal fallback path for crawl_sitemap attaches per-page metrics using buildTextMetrics(''), which yields truncated: false even though the response note says content was omitted due to size constraints. This produces inaccurate per-page truncation signals and diverges from summary-level truncation reporting for large sitemap crawls.
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… fallback The fallback-metrics test wanted to exercise the content-omitted branch (emits `note: 'Content omitted due to size constraints'`) by serving two 60 KB pages, but the engine's first-stage truncation slices each page back to 2_000 chars before the size check. Two truncated pages produce ~5 KB of JSON — well below MAX_OUTPUT_CHARS (50 KB) — so the second- stage minimal-pages branch (and its `note`) never runs and the test trips on `expect(parsed.note).toBe(...) // Received: undefined`. Bump the fixture to 30 large pages so the truncated-page aggregate (~60 KB) reliably overflows MAX_OUTPUT_CHARS and exercises the content-omitted branch the test was actually asserting on. Resolves the ubuntu-20 / windows-* / macos-* CI failures on PR #1077.
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| // Fall through to footer metrics for non-JSON semantic error/fallback text. | ||
| } | ||
| } | ||
| return appendMetricsFooter(text, buildTextMetrics(text, { mode: modeForMetrics })); |
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The read_page handler enforces MAX_OUTPUT_CHARS before returning, but sanitizedHandler appends metrics afterward (appendMetricsFooter / _metrics) without any final size check. When include_metrics=true and the page output is already near the cap (especially in large DOM/AX responses), this post-processing can push the returned text past the configured output limit, breaking the tool’s own size-budget guarantee for clients that depend on bounded responses.
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| ...block, | ||
| text: sanitized.text + sanitized.sanitizationNote, | ||
| text: includeMetrics | ||
| ? appendMetricsFooter(text, buildTextMetrics(text, { mode: modeForMetrics })) |
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When include_metrics is enabled for non-semantic read_page modes, metrics are computed from text before appending the [openchrome_metrics] footer, so returned_chars/estimated_tokens undercount what is actually returned to clients. This creates inconsistent semantics versus semantic mode (which now targets final serialized length) and can mislead consumers that use these fields for output budgeting or regression checks.
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…ps tests Develop's act.test.ts was updated to assert PR #1098 (structured steps) behavior — "instruction or steps is required" and `steps: [...]` mock inputs — but develop's act.ts source has not landed PR #1098 yet. As a result, every PR that merges develop inherits 4 broken act.test.ts assertions that the source cannot satisfy. This is a temporary unblock for downstream PRs: - relax the missing/empty-instruction message assertion to match either the current "instruction is required" or the post-#1098 "instruction or steps is required" wording - skip the two structured-steps assertions (executes / rejects empty) until #1098 lands and act.ts adopts the `steps:` field This change reverts cleanly once #1098 lands — the regex still matches the new wording, and removing `.skip` re-enables the structured-step tests against the new source.
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| includeLinks: { | ||
| type: 'boolean', | ||
| description: 'markdown-clean only: preserve <a> as markdown links. Default: true.', | ||
| enum: ['markdown', 'text', 'structured'], |
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This change removes markdown-clean from crawl's accepted output_format values, which is a breaking regression for existing callers that rely on cleaned markdown output from this tool. After this commit, those requests are either rejected by schema validation or no longer follow the prior clean-markdown path, so integrations that depended on onlyMainContent/includeLinks semantics for crawl stop working across upgrade.
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…seline Develop's tests/tools/act.test.ts asserts PR #1098 behavior — the "instruction or steps is required" wording and `steps: [...]` inputs — but PR #1098 (act-structured-steps) has not been merged. As a result, every PR that merges develop now inherits 4 broken assertions that develop's act.ts source cannot satisfy. Since #1105's charter is "restore develop CI signal", apply the temporary unblock here: - relax the missing/empty-instruction message regex to accept the current "instruction is required" OR the post-#1098 "instruction or steps is required" wording - skip the two structured-steps assertions ("executes structured steps", "rejects empty structured steps") until #1098 lands and develop's act.ts adopts the `steps:` field Each downstream PR that previously inherited this regression (#945, #1077, #1101, #1104, …) gets a green test pass once #1105 merges, and the change reverts cleanly when #1098 lands.
Addresses Codex P1 feedback: the token-metrics PR accidentally removed the markdown-clean feature from both crawl and crawl_sitemap tools. This commit restores the behavioral regression independent of the metrics scope: - output_format.enum now includes 'markdown-clean' in both tools - onlyMainContent and includeLinks boolean options restored - cleanMarkdownFromHtml helper function restored in both files - fetchPageStatic and fetchPage signatures restored with cleanOpts param - markdown-clean static and CDP branches restored in both tools - Handler-level cleanOpts initialization restored in both tools - Imports (extractMainContent, toMarkdown, sanitizeContent, getGlobalConfig) restored in crawl-sitemap.ts Token-metrics changes (buildTextMetrics, include_metrics, buildOutput) are untouched. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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| note: 'Content omitted due to size constraints', | ||
| } | ||
| : { summary, pages: minimalPages, note: 'Content omitted due to size constraints' }; | ||
| outputJson = JSON.stringify(minimalOutput, null, 2); |
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When include_metrics is enabled, this branch builds a much larger minimalOutput (per-page metrics objects) and immediately returns it without another MAX_OUTPUT_CHARS guard. In large crawls (for example high max_pages where content is already omitted), the final JSON can still exceed the configured output cap, so the tool no longer guarantees bounded responses in the exact fallback path meant to enforce size limits.
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Forthcoming review note: |
* Restore develop CI signal after contract drift Align tests with current tab context metadata, doctor check thresholds, and tool description budget so unrelated feature PRs can rely on CI again. Constraint: This is a base-branch unblocker only; avoid carrying these fixes inside feature PRs. Rejected: Duplicating CI fixes into each feature branch | it would pollute narrowly scoped Stagehand-inspired PRs. Confidence: high Scope-risk: narrow Directive: Keep future contract changes paired with tests in the same PR to avoid hidden develop breakage. Tested: /Users/jh0927/openchrome/node_modules/.bin/tsc -p tsconfig.json --pretty false; npm run lint; npx jest --config jest.config.js --runInBand tests/tools/tabs.test.ts tests/tool-descriptions.test.ts tests/cli/doctor/checks/chrome-binary.test.ts tests/cli/doctor/checks/disk-space.test.ts tests/cli/doctor/checks/home-writable.test.ts tests/cli/doctor/checks/network-local.test.ts Not-tested: Full npm test matrix locally * fix: strip leaked conflict markers * fix(1105): add TOOL_CAPABILITIES + capability + optional annotations * test(act): relax structured-steps assertions to restore develop CI baseline Develop's tests/tools/act.test.ts asserts PR #1098 behavior — the "instruction or steps is required" wording and `steps: [...]` inputs — but PR #1098 (act-structured-steps) has not been merged. As a result, every PR that merges develop now inherits 4 broken assertions that develop's act.ts source cannot satisfy. Since #1105's charter is "restore develop CI signal", apply the temporary unblock here: - relax the missing/empty-instruction message regex to accept the current "instruction is required" OR the post-#1098 "instruction or steps is required" wording - skip the two structured-steps assertions ("executes structured steps", "rejects empty structured steps") until #1098 lands and develop's act.ts adopts the `steps:` field Each downstream PR that previously inherited this regression (#945, #1077, #1101, #1104, …) gets a green test pass once #1105 merges, and the change reverts cleanly when #1098 lands. * fix(test): restore disk-space boundary — exactly 100 MB is warn not fail FAIL_THRESHOLD_MB uses strict < so the boundary value (100 MB) falls into the warn bucket, matching the test contract. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(test): restore capability-filter — add oc_task_run_* to TOOL_CAPABILITY_MAP and snapshot 7 oc_task_run_* tools registered by registerTaskRunTools() were missing from TOOL_CAPABILITY_MAP (failing lint:tools-capabilities) and from the v1.11 baseline snapshot (failing snapshot equality test). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(test): restore summarizeMcpResultForJournal export from mcp-server journal.test.ts imports summarizeMcpResultForJournal from mcp-server. The export was lost in a merge; restore it so the suite loads and the hint-stripping contract is verified. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(test): restore intent label — generateSummary appends [intent: "..."] suffix issue #894 contract: when intent is provided and non-empty, generateSummary must append [intent: "..."] to the base summary string. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(test): restore interact.ts — TOOL_ANNOTATIONS ref, ref fast-path, intent field Three test contracts restored: 1. tool-annotations: interact.ts now references TOOL_ANNOTATIONS.interact so the reverse-direction orphan check passes. 2. snapshot-refs: add ref param + STALE_REF fast-path so interact accepts a snapshot ref and clicks via backendDOMNodeId without AX re-resolution. 3. intent: add intent field (maxLength:120) with INVALID_INTENT validation per issue #894 schema contract. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(test): restore oc-skill-replay contract — envelope, DISABLED gate, replay_artifacts oc-skill-replay.test.ts and no-network.test.ts expect: - Tool always registered (gate moved from registerOcSkillReplayTool to handler) - DISABLED only when OPENCHROME_SKILL_REPLAY is explicitly falsy (absent = enabled) - Response envelope { ok, failure: { code } } instead of { error } - tabId optional (auto-detected from active session target) - SKILL_NOT_FOUND, ARTIFACT_MISSING, ARTIFACT_RESOLUTION_FAILED codes oc-skill-record.ts: add replay_artifacts input/output field; return null when feature explicitly disabled, array when enabled or absent. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * test(health-endpoint): poll for bind instead of fixed sleep The 'transport=both' scenario intermittently failed on slow ubuntu-20 runners because bind() landed slightly after the SelfHealing log line, so the 500 ms fixed sleep + 500 ms probe arrived during a window when the listener wasn't yet accepting connections. Replace the fixed sleep with a 10 s deadline polling loop that retries probePort every 150 ms until 'connected' (or the deadline expires). No behavior change for disabled scenarios — those still use the single-shot 500 ms probe and the same 'not connected' assertion. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> Co-authored-by: shaun0927 <junghwan1912@gmail.com>
# Conflicts: # tests/tools/act.test.ts
# Conflicts: # src/tools/crawl.ts
feat(inspect): add opt-in output token metrics (#981)
The merge of PR #1100 (inspect metrics) into feat/990-token-metrics dropped the readPageHandlerForReuse export from read-page.ts, which src/tools/_shared/return-after-state.ts (#845 plumbing on develop) imports. Restoring the export fixes the TS2305 build break that followed the develop merge. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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| mode: { | ||
| type: 'string', | ||
| enum: ['ax', 'dom', 'css', 'semantic', 'markdown'], | ||
| description: 'Output mode: dom (default), ax, css, semantic, or markdown (clean article extraction).', | ||
| }, | ||
| onlyMainContent: { | ||
| type: 'boolean', | ||
| description: 'Markdown mode only: strip nav/header/footer/aside/ads. Default: true.', | ||
| }, | ||
| includeLinks: { | ||
| type: 'boolean', | ||
| description: 'Markdown mode only: preserve <a> as markdown links. Default: true.', | ||
| enum: ['ax', 'dom', 'css', 'semantic'], | ||
| description: 'Output mode: dom (default), ax, css, or semantic', |
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This change removes markdown from read_page’s accepted mode enum and from the mode validator, so existing callers that send mode: "markdown" now get an error instead of the previous clean-markdown output path. Because this commit is scoped to metrics and claims legacy behavior is unchanged, this is a breaking API regression for integrations that rely on markdown extraction.
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| } catch { | ||
| // DOM serialization failed — fall through to AX mode as fallback | ||
| diagnostics.mode = 'ax'; | ||
| } |
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In DOM mode, the catch block now always falls through to AX handling, which means callers that explicitly requested mode: "dom" can receive AX output when DOM serialization fails. This changes tool semantics and can break downstream parsers that expect DOM-formatted output for explicit DOM requests; previously explicit DOM requests surfaced an error instead of switching formats.
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| const output = lines.join('\n'); | ||
| const includePaginationAx = args.includePagination !== false; | ||
| const axPaginationSection = includePaginationAx ? await measure('paginationMs', async () => formatPaginationSection(await detectPagination(page, tabId))) : ''; | ||
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| const compression = args.compression as string | undefined; | ||
| if (compression === 'delta') { | ||
| const snapshotStore = SnapshotStore.getInstance(); | ||
| const axCacheTabId = `${tabId}:ax${compactAX ? ':compact' : ''}`; | ||
| const previous = snapshotStore.get(sessionId, axCacheTabId); | ||
| if (previous) { | ||
| const delta = snapshotStore.computeDelta(previous, output, axPageStats.url); | ||
| snapshotStore.set(sessionId, axCacheTabId, output, axPageStats.url); | ||
| if (delta.isDelta) { | ||
| return { | ||
| content: [{ type: 'text', text: pageStatsLine + delta.content.replace('[DOM Delta', '[AX Delta') + axPaginationSection }], | ||
| }; | ||
| } | ||
| } else { | ||
| snapshotStore.set(sessionId, axCacheTabId, output, axPageStats.url); | ||
| } | ||
| } | ||
| const axPaginationSection = includePaginationAx ? formatPaginationSection(await detectPagination(page, tabId)) : ''; | ||
|
|
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The AX branch no longer evaluates args.compression === "delta" before returning output, even though compression still advertises "delta" in the schema. As a result, AX callers always receive full snapshots and lose the incremental [AX Delta ...] behavior, which is a functional regression for clients relying on repeated AX reads with delta compression.
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Develop CI restored, but this PR still has PR-specific test failuresPR #1105 has merged to Addressed in this session
Author follow-up
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Constraint: PR #1077 adds output metrics but Codex review and CI showed read_page/crawl regressions in existing markdown, diagnostics, compact AX, delta compression, and output-bound contracts. Rejected: Layering metrics on a stale read_page fork | It removed current public behavior unrelated to token metrics. Confidence: high Scope-risk: moderate Directive: Keep metrics as additive post-processing; do not change read/crawl output modes or safety bounds. Tested: npm test -- --runTestsByPath tests/core/metrics/token-estimate.test.ts tests/tools/read-page.test.ts tests/tools/read-page-dom.test.ts tests/tools/inspect-metrics.test.ts tests/core/tools/crawl.engine.test.ts --runInBand; npm run build; npm run lint:tool-schemas Not-tested: Full CI matrix pending on GitHub
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| const includeMetrics = args.include_metrics === true; | ||
| const withTextMetrics = (text: string, emittedMode: string, truncated = hasTruncationMarker(text)): string => { |
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include_metrics is parsed and helper functions are added, but the AX branch never calls withTextMetrics (its delta, overflow, and default returns still emit raw text), so read_page silently ignores include_metrics: true whenever mode: "ax" is requested. This creates mode-dependent behavior for the same flag and leaves token/size telemetry unavailable in one of the highest-volume read modes.
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The token-metrics PR had to absorb develop's state-header work without regressing either contract. Semantic read_page metrics are now refreshed after the state header is merged, and inspect output keeps both the state header and optional metrics footer. Constraint: PR #1077 became dirty after #912 merged state headers into develop. Rejected: Dropping state headers from metrics-enabled outputs | it would regress the newly merged page-state contract. Confidence: high Scope-risk: moderate Directive: Treat metrics as additive post-processing over the final emitted payload, including state headers. Tested: npm test -- --runTestsByPath tests/tools/read-page.test.ts tests/tools/state-header.test.ts --runInBand; npm run build; npm test -- --runTestsByPath tests/core/metrics/token-estimate.test.ts tests/tools/read-page-dom.test.ts tests/tools/inspect-metrics.test.ts tests/core/tools/crawl.engine.test.ts --runInBand; npm run lint:tool-schemas Not-tested: Full CI pending after push Co-authored-by: OmX <omx@oh-my-codex.dev>
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Reviewed and validated for merge. This PR adds opt-in token/compression metrics for high-volume read tools ( During review I addressed the Codex bot feedback by preserving metrics through final fallback payloads, deriving metrics from the final emitted text/payload, avoiding non-JSON numeric compression ratios, marking clipped/omitted payloads as truncated, re-applying size caps after metrics are attached, restoring legacy read/crawl modes, and merging the state-header behavior from Validation evidence:
The remaining change is additive and gated by |
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Progress / Review status
Auto-refreshed 2026-05-13 — owner comments cleaned up to reduce review noise.
feat/990-token-metrics→developf1d82b9— Merge develop into feat/990-token-metricsOwner comment cleanup: 7 issue + 0 inline review comments deleted. Outstanding feedback from automated/external reviewers above is unchanged.
Summary
estimateTokens,buildTextMetrics,buildRawTextMetrics).include_metricssupport forcrawl,crawl_sitemap,read_page, andvalidate_page.Closes #990.
Direction / scope check
ceil(chars / 4)) and names the fieldestimated_tokensto avoid exact-token overclaiming.Verification
npm run build -- --pretty falsenpm test -- --runInBand tests/core/metrics/token-estimate.test.ts tests/core/tools/crawl.engine.test.tsnpm run lint:changedKnown gaps
npm run lint -- --max-warnings=0is blocked by pre-existing unrelated lint findings ondevelop; changed-file lint passes.