---
phase: 01-draft-state-ownership
plan: 01
subsystem: ui
tags: [react, typescript, tauri, vitest, runtime-settings]
requires: []
provides:
  - runtime draft ownership contracts for live, baseline, and editable runtime state
  - manager-owned polling reconciliation that preserves dirty drafts
  - regression coverage for poll-safe draft edits, close or reopen preservation, and save promotion
affects: [phase-1-drawer-refactor, runtime-settings-drawer, lifecycle-semantics]
tech-stack:
  added: []
  patterns: [manager-owned live-baseline-draft state, operational-only polling reconciliation while dirty, hook-level draft regression harness]
key-files:
  created: []
  modified:
    - tauri-app/src/features/runtime/types.ts
    - tauri-app/src/features/runtime/useRuntimeManager.ts
    - tauri-app/src/features/runtime/runtime-settings-form.test.ts
    - tauri-app/src/features/runtime/components/RuntimeSurface.test.tsx
key-decisions:
  - "Keep existing snapshot/saveConfig outputs while adding explicit draft APIs so brownfield consumers keep compiling during the Phase 1 transition."
  - "When the draft is dirty, polling updates only operational live fields and leaves baseline plus draft config untouched."
patterns-established:
  - "Runtime manager owns liveSnapshot, savedBaseline, and draftConfig separately instead of deriving editable state from polling output."
  - "Draft behavior is verified with hook-level regression tests that exercise open, close, update, poll, and save flows independently from the drawer UI."
requirements-completed: [WORK-02, CONF-01]
duration: 10min
completed: 2026-03-29
---

# Phase 1 Plan 1: Draft State Ownership Summary

**Manager-owned runtime draft contracts with polling-safe reconciliation and save-promotion regressions for the Tauri runtime workspace**

## Performance

- **Duration:** 10 min
- **Started:** 2026-03-29T02:43:00Z
- **Completed:** 2026-03-29T02:52:44Z
- **Tasks:** 2
- **Files modified:** 4

## Accomplishments
- Added explicit draft-state contracts for live snapshot, saved baseline, editable draft config, and field metadata in `tauri-app/src/features/runtime/types.ts`
- Refactored `useRuntimeManager` to own `liveSnapshot`, `savedBaseline`, and `draftConfig` separately while preserving legacy `snapshot` and `saveConfig` compatibility
- Added regression coverage proving dirty drafts survive polling, hidden drafts survive close or reopen in-session, and save promotes the returned config into the new clean baseline

## Task Commits

Each task was committed atomically:

1. **Task 1: Define runtime draft ownership contracts** - `929a516` (feat)
2. **Task 2: Move draft, baseline, and polling reconciliation into the runtime manager** - `18501e9` (feat)

**Plan metadata:** pending

## Files Created/Modified
- `tauri-app/src/features/runtime/types.ts` - Defines reusable draft-state contracts and default field metadata for manager-owned runtime editing
- `tauri-app/src/features/runtime/runtime-settings-form.test.ts` - Verifies the new draft contract surface with runtime-backed and type-level assertions
- `tauri-app/src/features/runtime/useRuntimeManager.ts` - Separates live polling state from saved baseline and editable draft state while keeping legacy consumers working
- `tauri-app/src/features/runtime/components/RuntimeSurface.test.tsx` - Covers dirty polling reconciliation, close or reopen draft persistence, and save promotion behavior through the runtime manager harness

## Decisions Made
- Kept `snapshot` and `saveConfig` on the manager return value so the current drawer keeps working while Phase 1 transitions draft ownership into the manager
- Treated dirty polling as an operational refresh only, updating status and process health without replacing draft or baseline config values

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered
- The first RED attempt used type-only assertions, which Vitest transpiled without failing on missing exports; the contract test was adjusted to use runtime-backed draft helpers so the TDD red phase became real before implementation

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness
- Phase 1 now has a typed draft-state foundation and manager behaviors the drawer refactor can consume directly
- The next plan can move the drawer UI onto the manager-owned draft API without re-solving polling or save-baseline ownership rules

## Self-Check

PASSED

- FOUND: `.planning/phases/01-hf-model-discovery/01-01-SUMMARY.md`
- FOUND: `929a516`
- FOUND: `18501e9`

---
*Phase: 01-draft-state-ownership*
*Completed: 2026-03-29*