# TP-155: Activity interval manual and mixed classification — Status

**Current Step:** Step 4: Documentation & Delivery
**Status:** ✅ Complete
**Last Updated:** 2026-06-10
**Review Level:** 1
**Review Counter:** 4
**Iteration:** 1
**Size:** M

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### Step 0: Preflight
**Status:** ✅ Complete

- [x] Required files and paths exist
- [x] Dependencies satisfied

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### Step 1: Add classifier states and fixture coverage
**Status:** ✅ Complete

- [x] Add `manual_added` and `mixed` states in the classifier
- [x] Guard against overclassifying missing raw evidence as `manual_added`
- [x] Document/test explicit precedence before group-id heuristic before fallback
- [x] Add regression tests for grouped, ungrouped, mixed, structured, and device-lap cases
- [x] Preserve existing precedence behavior
- [x] Targeted analysis tests pass

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### Step 2: Propagate source evidence to tool/analyzer responses
**Status:** ✅ Complete

- [x] Analyzer metadata supports the new values
- [x] get-activity-interval output/tests expose the new classifications
- [x] Schema snapshot refreshed if needed
- [x] Targeted tool and analysis tests pass

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### Step 3: Testing & Verification
**Status:** ✅ Complete

- [x] FULL test suite passing
- [x] Integration tests (if applicable)
- [x] All failures fixed
- [x] Build passes

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### Step 4: Documentation & Delivery
**Status:** ✅ Complete

- [x] `CHANGELOG.md` updated
- [x] `README.md` reviewed/updated if affected
- [x] Discoveries logged

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## Reviews

| # | Type | Step | Verdict | File |
|---|------|------|---------|------|

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## Discoveries

| Discovery | Disposition | Location |
|-----------|-------------|----------|
| Manual interval inference needs evidence-bearing raw rows; terse fixtures with only summary fields remain `unknown` rather than `manual_added`. | Implemented via start/end index evidence guard and regression tests. | `internal/analysis/interval_source.go`, `internal/analysis/interval_source_test.go` |
| `get_activity_intervals` schema snapshot did not change because only top-level description/output semantics changed, not input arguments. | Verified with `go run ./scripts/snapshot_tool_schemas.go` and diffed the tool snapshot. | `internal/tools/schema_snapshot/get_activity_intervals.json` |
| `README.md` does not name the interval-source enum. | Reviewed; no README change needed. | `README.md` |

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## Execution Log

| Timestamp | Action | Outcome |
|-----------|--------|---------|
| 2026-06-09 | Task staged | PROMPT.md and STATUS.md created |
| 2026-06-10 11:40 | Task started | Runtime V2 lane-runner execution |
| 2026-06-10 11:40 | Step 0 started | Preflight |
| 2026-06-10 11:55 | Worker iter 1 | done in 929s, tools: 97 |
| 2026-06-10 11:55 | Task complete | .DONE created |

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## Blockers

*None*

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## Notes

Public signal: IcuSync forum #265-266 reports auto-detected intervals have `group_id`; manually added intervals do not.
| 2026-06-10 11:43 | Review R001 | plan Step 1: REVISE |
| 2026-06-10 11:44 | Review R002 | plan Step 1: APPROVE |
| 2026-06-10 11:48 | Review R003 | plan Step 2: APPROVE |
| 2026-06-10 11:53 | Review R004 | plan Step 3: APPROVE |
