---
gsd_state_version: 1.0
milestone: v1.3
milestone_name: Atomic Restart Recovery
status: completed
stopped_at: Completed 02-01-PLAN.md
last_updated: "2026-03-20T20:54:28.798Z"
progress:
  total_phases: 2
  completed_phases: 2
  total_plans: 4
  completed_plans: 4
---

# Project State: v1.3 — Atomic Restart Recovery

**Initialized:** 2026-03-20
**Status:** Milestone complete

---

## Project Reference

See: .planning/PROJECT.md (updated 2026-03-20)

**Core value:** Every sidecar restart produces a clean bar chain for today -- zero gaps, zero overlaps, zero legacy fragments.
**Current focus:** Phase 02 — legacy-pruning

## Current Position

Phase: 02
Plan: Not started

## Performance Metrics

**Velocity:**

- Total plans completed: 0
- Average duration: -
- Total execution time: 0h

**By Phase:**

| Phase | Plans | Total | Avg/Plan |
| ----- | ----- | ----- | -------- |
| -     | -     | -     | -        |

## Phase Summary

| Phase | Name                          | Status      | Requirements                       |
| ----- | ----------------------------- | ----------- | ---------------------------------- |
| 1     | Atomic Replace + Heal Scoping | Not Started | ATOM-01, ATOM-02, HEAL-01, HEAL-02 |
| 2     | Legacy Pruning                | Not Started | PRUNE-01..04                       |
| Phase 01 P01 | 11min | 1 tasks | 2 files |
| Phase 01 P02 | 2min | 2 tasks | 2 files |
| Phase 02 P02 | 3min | 2 tasks | 5 files |
| Phase 02 P01 | 2min | 1 tasks | 0 files |

## Accumulated Context

### Decisions

- store_bars_replacing() chosen over whole-day DELETE (proven kintsugi mechanism, no data vacuum)
- 4-agent research spike (2026-03-20) confirmed approach
- [Phase 01]: _skip_lock=False for sync_flush atomic replace ensures Redis write lock acquired
- [Phase 01]: Lazy import of OpenDeviationBarCache inside function body (consistent with existing sidecar patterns)
- [Phase 01]: Source-level inspection test for HEAL-02 call site verification
- [Phase 02]: No replacement field needed for gap_fill_on_startup -- dead code controlling removed startup gap-fill behavior
- [Phase 02]: No code changes needed for 02-01 -- all three dead functions already absent from sidecar.py

### Pending Todos

None yet.

### Blockers/Concerns

None.

## Session Continuity

Last session: 2026-03-20T20:54:28.796Z
Stopped at: Completed 02-01-PLAN.md
Resume file: None
