# Agent Session: opencode-task106-immersion-modules-20260222T195109Z-r3m7

- alias: `opencode-task106-immersion-modules`
- mission: `Execute TASK-106 decomposition of immersion tracker service into storage session and metadata modules end-to-end without commit`
- status: `done`
- last_update_utc: `2026-02-22T21:58:45Z`

## Intent

- Load TASK-106 context from Backlog MCP.
- Produce implementation plan via writing-plans skill.
- Execute with executing-plans skill; parallel subagents where safe.

## Planned Files (expected)

- `src/core/services/immersion-tracker-service.ts`
- `src/core/services/immersion-tracker/*`
- `src/core/services/immersion-tracker-service.test.ts`
- `docs/architecture.md`

## Assumptions

- Task scope excludes commit/push.
- Existing behavior must remain stable; refactor + focused tests only.

## Progress Log

- `2026-02-22T19:51:09Z` session started; backlog overview/task/execution guides loaded.
- `2026-02-22T19:55:30Z` user approved proceed; executing plan with parallel slices (storage/session + metadata) then integration/test/docs/finalization.
- `2026-02-22T20:01:45Z` implementation complete: extracted `storage.ts`, `session.ts`, `metadata.ts`; rewired `immersion-tracker-service.ts` facade; added `storage-session.test.ts` + `metadata.test.ts`; updated `docs/immersion-tracking.md` boundaries.
- `2026-02-22T20:01:45Z` verification: tracker tests green (7 pass/9 skip), `test:core:src` green (236 pass/6 skip), `bun run build` blocked by unrelated pre-existing TS errors in `src/anki-integration/*` + `src/main/runtime/*`; left TASK-106 in progress with AC#4 unchecked.
- `2026-02-22T21:58:45Z` user confirmed build fixed; reran `bun run build` + tracker tests + `test:core:src` all green; finalized TASK-106 Done with AC/DoD complete and final summary.

## Files Touched

- `src/core/services/immersion-tracker-service.ts`
- `src/core/services/immersion-tracker/storage.ts`
- `src/core/services/immersion-tracker/session.ts`
- `src/core/services/immersion-tracker/metadata.ts`
- `src/core/services/immersion-tracker/storage-session.test.ts`
- `src/core/services/immersion-tracker/metadata.test.ts`
- `docs/immersion-tracking.md`
- `docs/plans/2026-02-22-task-106-immersion-tracker-storage-session-metadata.md`