Execute Ideation Specification

Arguments: $ARGUMENTS

Execute a spec file generated by the ideation skill.

Parse arguments:

• --parallel flag: Enable parallel execution via subagents
• --headless flag: Auto-proceed through all confirmation steps (no AskUserQuestion calls). Used by /ideation:autopilot to run phases without blocking. In headless mode: scout HOLD → proceed anyway, review cycle 3 FAIL → report failure and stop (do not commit), spec selection → pick first unblocked.
• Remaining argument: Spec file path (optional)

Example: /ideation:execute-spec --parallel or /ideation:execute-spec --headless docs/ideation/foo/spec-phase-1.md

Pre-Execution

1. Load Specification

If argument provided: Read the spec file directly.