1281 State Management 0f3b04a8

# State Management

**Purpose:** Persistent memory across sessions - decisions, blockers, learnings.

## Structure

**Output:** `.specs/project/STATE.md`

```markdown
# State

**Last Updated:** [ISO timestamp]
**Current Work:** [Feature name] - [Task identifier]

---

## Recent Decisions (Last 60 days)

### AD-[NNN]: [Decision title] ([date])

**Decision:** [What was decided]
**Reason:** [Why this choice]
**Trade-off:** [What was sacrificed]
**Impact:** [How this affects implementation]

### AD-[NNN]: [Decision title] ([date])

[Same structure]

---

## Active Blockers

### B-[NNN]: [Blocker description]

**Discovered:** [Date]
**Impact:** [Severity and scope]
**Workaround:** [Temporary solution if available]
**Resolution:** [Path to permanent fix]

---

## Lessons Learned

### L-[NNN]: [Learning description]

**Context:** [Situation that occurred]
**Problem:** [What went wrong]
**Solution:** [How it was resolved]
**Prevents:** [What this knowledge prevents in future]
```

## When to Update

| Event                            | Action                                 |
| -------------------------------- | -------------------------------------- |
| Significant architectural choice | Add AD-[NNN]                           |
| Implementation blocked           | Add B-[NNN]                            |
| Important discovery/learning     | Add L-[NNN]                            |
| Session end                      | Update "Last Updated" + "Current Work" |

## Size Management (Hybrid Strategy)

**Zones:**

- 🟢 <7k tokens: No action
- 🟡 7-10k tokens: Footer note "STATE.md at [X]k. Cleanup recommended."
- 🔴 >10k tokens: Active prompt "STATE.md critical ([X]k). Cleanup now?"

**Cleanup process:**

- Move decisions >60 days to STATE-ARCHIVE.md
- Keep only active blockers
- Preserve recent learnings (<60 days)

**Validation:**

- Decisions have clear rationale?
- Blockers include resolution path?
- Learnings are actionable?

---

## Preferences

Track user-facing behavioral state in STATE.md:

```markdown
## Preferences

**Model Guidance Shown:** [ISO date or "never"]
```

**Update when:**

| Event                       | Action                   |
| --------------------------- | ------------------------ |
| First model tip given       | Set date                 |
| User acknowledges/dismisses | Keep date (don't repeat) |

This prevents repetitive suggestions while maintaining natural, helpful behavior.