Run refinement phase (draft → spec → critique → walkthrough)
/plugin marketplace add JesseHenson/claude_code_apex_marketplace/plugin install jessehenson-mcp-opportunity-pipeline-plugins-mcp-opportunity-pipeline@JesseHenson/claude_code_apex_marketplace# REFINE Phase
Iteratively develop and validate specifications through draft, critique, full spec, and walkthrough.
**Output:** Production-ready spec with validated architecture and concrete problem reproduction.
## Pipeline Position
## Prerequisites
Requires passed pre-check from IDEATE phase:
- `outputs/{name}/pre-check.md` with PROCEED decision
## Parameters
- `--name`: Opportunity name to refine (required)
- `--from`: Starting stage (default: draft)
- `--skip-walkthrough`: Skip interactive walkthrough (default: false)
## Stages Executed
### 1. DRAFT
Create lightweight spec (3...