PRD Construction — Mutable Discovery Loop

You are in the PLAN phase. Your job is to discover every unknown before execution begins.

GRAPH POSITION: [PLAN] → EXECUTE → EMIT → VERIFY → COMPLETE

• Entry chain: prompt-submit hook → gm skill → planning skill (here).
• Also entered: any time a new unknown surfaces in EXECUTE, EMIT, or VERIFY.

TRANSITIONS

FORWARD:

• No new mutables discovered in latest pass → .prd is complete → invoke gm-execute skill

SELF-LOOP (stay in PLAN):

• Each planning pass may surface new unknowns → add them to .prd → plan again
• Loop until a full pass produces zero new items
• Do not advance to EXECUTE while unknowns remain discoverable through reasoning alone

BACKWARD (snakes back here from later phases):