Show per-turn model and token usage - #1058
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PR Summary by QodoShow model and token usage for each conversation turn
AI Description
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High-Level Assessment
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Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review. 📝 WalkthroughWalkthroughThe change adds response usage metadata for Claude and OpenAI-compatible streams. It stores metadata on conversation records, preserves it during retries, and displays model and token usage per answer and across the conversation. ChangesConversation usage metadata
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: ⚪ Minimal · up to The PR adds optional per-turn model and usage metadata and adjusts streamed response finalization while preserving older records and existing request boundaries. No actionable merge-blocking risk remains after normal checks and review. Sequence Diagram(s)sequenceDiagram
participant APIStream
participant UsageMetadata
participant pushRecord
participant ConversationCard
participant ConversationItem
participant ConversationUsageSummary
APIStream->>UsageMetadata: Merge streamed usage metadata
UsageMetadata->>pushRecord: Provide normalized metadata
pushRecord->>ConversationCard: Persist conversation record
ConversationCard->>ConversationItem: Pass answer metadata
ConversationCard->>ConversationUsageSummary: Pass conversation records
ConversationUsageSummary->>UsageMetadata: Summarize reported usage
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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🛠️ Fix failing CI checks 💡
🧪 Generate unit tests (beta)
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Pull request overview
Adds per-turn model + provider-reported token usage metadata to conversation records, wires streaming providers (OpenAI Chat Completions, OpenRouter, Anthropic) to capture trailing usage blocks correctly, and surfaces both per-turn and conversation-level usage summaries in the UI.
Changes:
- Introduces a normalized
metapayload (selected model, reported model, token usage incl. cache read/write) and helpers to merge/compact/summarize it. - Updates OpenAI-compatible and Anthropic streaming to retain metadata (including trailing usage events) and persist it via
pushRecord. - Adds UI to display per-turn usage/model (ConversationItem) plus a conversation-level summary (ConversationUsageSummary), with new unit tests covering streaming edge cases and retry semantics.
Reviewed changes
Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| tests/unit/utils/usage-metadata.test.mjs | Adds unit coverage for metadata normalization/merging and conversation summaries. |
| tests/unit/services/apis/usage-streaming.test.mjs | Verifies streaming behavior for OpenAI/OpenRouter/Anthropic usage capture and interruption handling. |
| tests/unit/services/apis/usage-records.test.mjs | Tests pushRecord persistence semantics for metadata and retry replacement/cleanup. |
| src/utils/usage-metadata.mjs | New utilities for merging provider usage payloads and summarizing conversation usage/model history. |
| src/services/apis/shared.mjs | Extends pushRecord to persist optional per-turn meta (with session-model fallback). |
| src/services/apis/openai-compatible-core.mjs | Captures/merges metadata during SSE and waits for trailing usage when appropriate. |
| src/services/apis/claude-api.mjs | Captures/merges Anthropic cumulative usage and persists per-turn metadata. |
| src/components/ConversationUsageSummary/index.jsx | New component to display conversation-level usage totals and model history. |
| src/components/ConversationItem/index.jsx | Displays per-turn model and token usage details when available. |
| src/components/ConversationCard/index.jsx | Plumbs meta into rendered answer items and adds the usage summary row. |
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Actionable comments posted: 1
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In `@src/components/ConversationUsageSummary/index.jsx`:
- Around line 22-25: Update the model label logic in ConversationUsageSummary so
it renders only when summary.models contains at least one model; preserve the
singular name display for one model and the plural count display for multiple
models, while omitting the label entirely for zero models.
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src/_locales/de/main.jsonsrc/_locales/en/main.jsonsrc/_locales/es/main.jsonsrc/_locales/fr/main.jsonsrc/_locales/id/main.jsonsrc/_locales/it/main.jsonsrc/_locales/ja/main.jsonsrc/_locales/ko/main.jsonsrc/_locales/pt/main.jsonsrc/_locales/ru/main.jsonsrc/_locales/tr/main.jsonsrc/_locales/zh-hans/main.jsonsrc/_locales/zh-hant/main.jsonsrc/components/ConversationCard/index.jsxsrc/components/ConversationCard/session.mjssrc/components/ConversationUsageSummary/index.jsxtests/unit/components/conversation-card-metadata.test.mjstests/unit/locales/usage-labels.test.mjstests/unit/services/apis/usage-streaming.test.mjs
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Rebase onto current master and persist provider-reported model and token usage with each retained turn. Translate the new UI across all supported locales, preserve metadata across duplicate completion events, recompute foreground summaries, avoid unsupported Array.prototype.at, and retain empty content deltas without emitting metadata-only updates.
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Important
The PR's streaming and record-metadata changes regress two existing tests in custom-api.test.mjs (a file this PR does not touch), so npm test currently fails: handles metadata-only SSE chunk without choices or response fields and delta.content with empty string is appended (no skip). Both failures are contract changes the new code introduces without updating the affected tests. Either update the two tests to the new contract or preserve the prior observable behavior; the test suite must be green.
Reviewed changes — delta since the previously reviewed head 3a9d592:
- Added the 11 model/token-usage label keys to all 13 locales and a
usage-labels.test.mjscompleteness test asserting each key exists and is non-empty in every locale. - Extracted answer-metadata resolution into new
getLastConversationRecord/getCompletedAnswerMetadatahelpers inConversationCard/session.mjs, and switchedfinalizeInterruptedSessionfromArray.prototype.at(-1)to length-based indexing. - Reworked the per-turn and conversation-level usage labels (
turns→Turns, coverage formatting) inConversationItem/ConversationUsageSummaryand removed theuseMemowrapper around the summary computation. - Refactored
usage-streaming/usage-recordstests onto a sharedsseDatahelper and length-based record indexing.
These changes are otherwise well-structured and the 19 new tests plus lint pass. Note: with no prior Pullfrog review on this PR, this run also covers the full PR surface; the streaming logic (trailing-usage capture, stream_options.include_usage, Anthropic cumulative accounting) checks out against the mocked-provider tests.
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✅ No new issues found.
Reviewed changes — delta since the prior review (de66cd3 → 784005c):
- Replaced the
answer !== previousAnswerposting guard withanswer !== previousAnswer || hasAnswerFieldvia a newhasMessageAnswerFieldhelper, so chunks that carry a content field (including empty-string deltas) still emit adone:falsepost — restoring the streaming contract exercised bycustom-api.test.mjswhile still suppressing posts for metadata-only chunks. - Updated
tests/unit/services/apis/custom-api.test.mjshandles metadata-only SSE chunk...to assert the new persistedmetacontract ({ selectedModel, reportedModel }) and the single-Histreaming message sequence.
Both items from the prior review are addressed. The full unit suite passes (1059 tests) and lint is clean on the changed files; the new guard preserves the empty-delta posting contract and correctly filters metadata-only chunks.
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| export function createRecordMetadata(session, metadata) { | ||
| return mergeResponseMetadata(metadata, { | ||
| selectedModel: metadata?.selectedModel || session?.modelName, | ||
| }) | ||
| } |
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| test('pushRecord stores response metadata and falls back to the session model', () => { | ||
| const session = { | ||
| aiName: 'OpenAI (GPT-5.6)', |
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modelName
This new test fails because createRecordMetadata() now falls back to session.modelName, while the fixture supplies only aiName but expects that display label as selectedModel. Running node --import ./tests/setup/browser-shim.mjs --test tests/unit/services/apis/usage-records.test.mjs produces this exact assertion failure, so the required npm test validation cannot pass; provide the stable modelName in the fixture and update the expectation accordingly.
AGENTS.md reference: AGENTS.md:L260-L262
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| if (parts.length === 0 && usage.totalTokens !== undefined) { | ||
| parts.push(`${t('Total tokens')}: ${formatTokenCount(usage.totalTokens)}`) |
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When an OpenAI-compatible provider reports total_tokens plus only some component fields—for example prompt_tokens without completion_tokens—normalization retains both inputTokens and totalTokens, but this condition suppresses the authoritative total merely because the input part was added. The per-turn header then presents an incomplete token count even though the provider supplied the total; omit the total only when both input and output are available (or otherwise known to fully explain it).
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Important
The incremental commits turn the previously-green suite red: npm test fails 29 tests at 16bd4a0, all green at the approved head 784005c. The createRecordMetadata fallback switched from session.aiName to session.modelName (stable identifier), which changes the persisted meta shape for every session: sessions that carry a modelName now write meta: { selectedModel } on every retained record, while aiName-only sessions stop writing a selectedModel entirely. Only usage-metadata.test.mjs was migrated to the new contract; the PR's own usage-records.test.mjs / usage-streaming.test.mjs and ~26 pre-existing API assertions (openai-api-compat, custom-api, claude-api, azure-openai-api, openai-api) were not updated to match.
Reviewed changes — delta since the previous pullfrog review (784005c):
- Hid the empty
Models: 0label inConversationUsageSummaryand switched duplicate-string span keys to index-based keys (21eac48,5ef1195). - Added
done: truehandling to aborted OpenAI-compatible and new Claude stream-abort paths so retained metadata is reposted in a terminal session (5ef1195for OpenAI,16bd4a0for Claude), with newusage-abort-metadata.test.mjscoverage. - Switched record
selectedModelfallback from the display labelsession.aiNameto the stable identifiersession.modelName, conditionalizeddoneon abort posts, and addedmodelNameToDescmapping plus model/usage coverage formatting inConversationItem/ConversationUsageSummary(16bd4a0).
Both prior pullfrog threads from the previous review are resolved; the custom-api contract updates from 784005c still hold.
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| export function createRecordMetadata(session, metadata) { | ||
| return mergeResponseMetadata(metadata, { | ||
| selectedModel: metadata?.selectedModel || session?.modelName, |
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Changing the fallback from session.aiName to session.modelName alters the persisted meta shape for every session: sessions with a modelName (all test/API/web sessions) now write meta: { selectedModel: <modelName> } on every record, and sessions that only carry aiName stop recording a selectedModel. Only usage-metadata.test.mjs was migrated to this contract; the PR's own usage-records.test.mjs (pushRecord stores response metadata and falls back to the session model) and usage-streaming.test.mjs (a custom OpenAI-compatible endpoint is not forced to accept stream_options) still assert the old aiName fallback, and ~26 pre-existing API tests (openai-api-compat, custom-api, claude-api, azure-openai-api, openai-api) deep-equal records that now carry meta. Confirmed: npm test is red at HEAD (29 failures) and green at 784005c.
Technical details
# Meta fallback change not propagated to the test suite
## Affected sites
- src/utils/usage-metadata.mjs:146 — `session?.aiName` -> `session?.modelName` fallback
- Every test that asserts a record shape without `meta` or with an `aiName`-based `selectedModel`
## Required outcome
- `npm test` must be green at the PR head.
## Suggested approach (optional)
- Either update the affected assertions to the new `modelName`-based `meta` contract (the UI renders it via `modelNameToDesc`, so a stable identifier stored in `meta.selectedModel` appears to be the intent), or scope the fallback so it does not attach a `meta` block to records where the provider returned no usage/model. In either case the two PR-introduced tests and the ~26 pre-existing assertions must be reconciled with the implemented behavior.
Summary
Provider handling
finish_reasonso trailing usage is not discardedPersistence and rendering behavior
metafield; old records remain compatibleArray.prototype.at()in runtime completion paths for compatibility with the extension's browser targetsThe displayed conversation totals describe the currently retained conversation branch. Replaced retries, deleted turns, failed requests, and requests whose provider did not return usage are intentionally not presented as complete billing totals.
Localization
Added all new labels to the English source locale and complete translations for:
Tests
Added coverage for:
Summary by CodeRabbit