# Plan Review — Step 1

Result: Approved with minor guidance.

The Step 1 plan is appropriate for an audit-only step: it covers the current activity detail/interval code, interval-source classifier/tests, tool descriptions, decision logging, and targeted tests.

Notes for execution:
- `get_activity_intervals` is implemented in `internal/tools/get_activity_details.go` rather than a separate `get_activity_intervals.go`; audit the shared `activityReadMeta`, `shapeActivityIntervalsDTO`, and classifier wiring there.
- If the decision is to expose interval-source metadata from `get_activity_details`, explicitly document the upstream/API limitation: `GetActivity` currently requests `intervals=false`, so reliable source classification likely requires either an additional intervals fetch or routing guidance to `get_activity_intervals`. Consider response-size, latency, and error semantics before coupling details to intervals.
- Include the registered tool descriptions/catalog-facing text in the audit, not just schema snapshots, since tool routing is driven by descriptions.
- Keep Step 1 non-invasive unless the worker hydrates the step; implementation and regression updates belong in Step 2.

The targeted test command `go test ./internal/tools ./internal/analysis` is sufficient for this audit checkpoint.
