Checkpoint Resume Skill

Checkpoint Resume

Rate-limit-resilient pipeline orchestrator. Saves progress to .claude/pipeline-state.json after every phase so long sessions survive interruptions.

Quick Reference

| Category | Rule | Impact | Key Pattern | |----------|------|--------|-------------| | Phase Ordering | ${CLAUDE_SKILL_DIR}/rules/ordering-priority.md | CRITICAL | GitHub issues/commits first, file-heavy phases last | | State Writes | ${CLAUDE_SKILL_DIR}/rules/state-write-timing.md | CRITICAL | Write after every phase, never batch | | Mini-Commits | ${CLAUDE_SKILL_DIR}/rules/checkpoint-mini-commit.md | HIGH | Every 3 phases, checkpoint commit format |

Total: 3 rules across 3 categories

On Invocation

If .claude/pipeline-state.json exists: run scripts/show-status.sh to display progress, then ask to resume, pick a different phase, or restart. Load Read("${CLAUDE_SKILL_DIR}/references/resume-decision-tree.md") for the full decision tree.

If no state file exists: ask the user to describe the task, build an execution plan, write initial state via scripts/init-pipeline.sh <branch>, begin Phase 1.

Execution Plan Structure

{
  "phases": [
    { "id": "create-issues", "name": "Create GitHub Issues", "dependencies": [], "status": "pending" },
    { "id": "commit-scaffold", "name": "Commit Scaffold", "dependencies": [], "status": "pending" },
    { "id": "write-source", "name": "Write Source Files", "dependencies": ["commit-scaffold"], "status": "pending" }
  ]
}

Phases with empty dependencies may run in parallel via Task sub-agents (when they don't share file writes).

After Each Phase

Update .claude/pipeline-state.json — see Read("${CLAUDE_SKILL_DIR}/rules/state-write-timing.md")
Every 3 phases: create a mini-commit — see Read("${CLAUDE_SKILL_DIR}/rules/checkpoint-mini-commit.md")

References

Load on demand with Read("${CLAUDE_SKILL_DIR}/references/<file>"): | File | Content | |------|---------| | references/pipeline-state-schema.md | Full field-by-field schema with examples | | references/pipeline-state.schema.json | Machine-readable JSON Schema for validation | | references/resume-decision-tree.md | Logic for resuming, picking phases, or restarting |

Scripts

scripts/init-pipeline.sh <branch> — print skeleton state JSON to stdout
scripts/show-status.sh [path] — print human-readable pipeline status (requires jq)

Key Decisions

| Decision | Recommendation | |----------|----------------| | Phase granularity | One meaningful deliverable per phase (a commit, a set of issues, a feature) | | Parallelism | Task sub-agents only for phases with empty dependencies that don't share file writes | | Rate limit recovery | State is already saved — re-invoke /checkpoint-resume to continue |

Agent Skills: Checkpoint Resume

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