What epiphany-plan does

epiphany-plan is a native graph-of-agentic-thought skill that converts a specification into a structured execution plan. It is the bridge between design (epiphany-spec) and implementation (epiphany-executor).

The pipeline path is: epiphany-brief -> epiphany-spec -> **epiphany-plan** -> epiphany-executor.

Key properties

• 10 nodes / 12 edges --- compact pipeline with two blocking gates.
• Two output formats --- Markdown (default, human-readable) or JSON (machine-strict, plan.schema.json).
• Code-enforced plan_verify --- the plan is validated by a no-llm impl node running plan_verify_gate.py, not LLM self-grading.
• Provider-agnostic --- the graph is identical across runtimes (claude-cli, codex, inline).