v1.110.5

What's New

Changed

• GET /api/agents/usage-by-agent now rolls up subagent token usage — claude-usage-service.ts walks <projectDir>/<sessionId>/subagents/**/agent-*.jsonl in addition to the parent session JSONL, summing both Task/Agent tool spawns and Workflow-tool fan-out runs into each agent's totals. Previously the endpoint reported only the parent-session tokens, which understated cost for boss agents and any agent running multi-agent workflows.

Added

• ClaudeUsageByAgentEntry now exposes subagentTokens: ClaudeTokenTotals and subagentRequestCount: number alongside the existing tokens field (which is now the rolled-up total).

Technical Details

• New collectSubagentJsonlPaths recursively walks the subagents tree, covering both Task/Agent spawns (flat under subagents/) and Workflow-tool runs (nested under subagents/workflows/<runId>/).
• scanSessionUsage was split into createAccumulator + scanFileIntoAccumulator so the parent and subagent files can flow into separate accumulators that are merged in the entry.
• An mtime fast-path in scanFileIntoAccumulator skips files whose mtimeMs < since so windowed queries don't pay for cold history.
• Client type in src/packages/client/api/claude-usage.ts mirrored. StatisticsModal already reads entry.tokens.total, so the chart reflects the new totals without UI changes.
• Verified live against the running TC instance: Oddy Taylor (mid-workflow) now shows 53.2M tokens (was ~10.4M parent-only), with 42.8M attributed to 592 subagent requests.