session-continuation

name	session-continuation
description	Manage workflow state across sessions with handoff and resume. TOON-based state persistence.
autoInvoke	false
priority	high
model	haiku
triggers	["handoff","save state","resume workflow","workflow:handoff","workflow:resume"]
allowed-tools	Read, Write, Bash
user-invocable	false

AI-consumed reference. Optimized for Claude to read during execution. Human-readable explanation: see docs/architecture/HIERARCHICAL_PLANNING.md or docs/getting-started/ depending on topic.

Session Continuation

Manage workflow state across sessions.

Triggers

Token ≥75% → suggest handoff. User says handoff/save → execute. User says resume + ID → load.

Handoff Flow

1. Save to .claude/logs/runs/[id]/run-state.json: workflow_id, status, current_phase, agents, phases_completed (with deliverables), key decisions, token_usage
2. Output: workflow ID, phase progress, deliverables, resume command

Resume Flow

1. Load state file → validate exists/valid
2. Restore: project context, agents, phase rules, decisions
3. Show summary → continue from saved phase

Auto-Save

Phase completion, every 5 min, token milestones (100K/150K/175K). Silent except warning thresholds.

TOON State Format (~160 tokens vs JSON ~600)

workflow:
  id: AUTH-1234
  phase: 3
  status: in_progress
agents[2]: architect,tester

Error Handling

Not found → show available, suggest /run. Corrupted → restore from .backup.json.

Cleanup

Completed: 30 days. Cancelled: 7 days. Paused: indefinitely.