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Reference · livepage:docs-harness-features-backlog-gaps-subagent-observability-gap-subobs-003
GAP-SUBOBS-003: Per-Subagent Token and Cost Tracking overview
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GAP-SUBOBS-003: Per-Subagent Token and Cost Tracking
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GAP-SUBOBS-003: Per-Subagent Token and Cost Tracking
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docs/harness-features-backlog/gaps/subagent-observability/gap-subobs-003
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# GAP-SUBOBS-003: Per-Subagent Token and Cost Tracking
| Field | Value |
|-------|-------|
| Category | subagent-observability |
| Priority | High |
| Effort | M |
| Status | Missing |
## Description
Track token usage and estimated cost per dispatched subagent effect. Aggregate at run and session level.
## Current State
tokens:stats tracks run-level tokens. No per-effect or per-subagent breakdown.
## Target State
Token usage and cost tracked per effect. Aggregated at run and session level. Visible in embedded SDK dashboard with per-effect cost breakdown. Cost anomaly detection for expensive effects.
## Dependencies
- [GAP-SUBOBS-001](../subagent-observability/GAP-SUBOBS-001.md) -- streaming output for token extraction
## Key Files
| Component | Path |
|-----------|------|
| Token stats | `packages/babysitter-sdk/src/cli/` |
| Task definitions | `packages/babysitter-sdk/src/tasks/` |
| Embedded SDK dashboard (new) | `packages/babysitter-sdk/src/dashboard/` |
## Recommendation
Phase 2 implementation. Capture token counts from harness output per effect. Aggregate at run and session level. Display in embedded SDK dashboard.
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- page:docs-harness-features-backlog·PageHarness Features Backlog: Gap Analysis (Restructured)