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fix(vis): report cumulative session tokens in Context tab token bar #730

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fix(vis): report cumulative session tokens in Context tab token bar #730

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10 changes: 8 additions & 2 deletions apps/vis/server/src/lib/context-projector.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -170,8 +170,14 @@ export function projectContext(entries: ReadonlyArray<WireEntry>): ContextProjec
}];
break;
case 'usage.record': {
const scope = (rec.usageScope ?? 'session') as 'session' | 'turn';
addUsage(usage.byScope[scope], rec.usage);
// `byScope.session` is the cumulative session total — every usage
// record, matching agent-core's UsageRecorder.total / byModel — while
// `byScope.turn` is the turn-scoped subset. The main agent loop records
// every step as 'turn', so partitioning records into one bucket OR the
// other left `byScope.session` near-empty and under-reported the Context
// tab token bar, which reads `byScope.session`.
addUsage(usage.byScope.session, rec.usage);
if ((rec.usageScope ?? 'session') === 'turn') addUsage(usage.byScope.turn, rec.usage);
if (!usage.byModel[rec.model]) usage.byModel[rec.model] = { ...ZERO };
addUsage(usage.byModel[rec.model]!, rec.usage);
break;
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7 changes: 7 additions & 0 deletions apps/vis/server/test/lib/context-projector.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,13 @@ describe('context-projector', () => {
expect(proj.usage.byScope.turn).toEqual({
inputOther: 10, output: 5, inputCacheRead: 0, inputCacheCreation: 0,
});
// `byScope.session` is the cumulative session total — the sum of every
// usage record (matching `byModel`), not just records explicitly scoped
// 'session'. The main loop records every step as 'turn', so before the fix
// this bucket stayed {0,0,0,0} and the Context tab token bar read empty.
expect(proj.usage.byScope.session).toEqual({
inputOther: 10, output: 5, inputCacheRead: 0, inputCacheCreation: 0,
});
expect(proj.usage.byModel['kimi-k2']).toEqual({
inputOther: 10, output: 5, inputCacheRead: 0, inputCacheCreation: 0,
});
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