Harness Init Skill
Sets up a project so VibeCoder can start development with natural language only. Completes with minimum 1 question, ready to start development immediately.
Quick Reference
- "Want to launch a new project fastest" → this skill
- "Leave it to you" / "Quickly" → proceed with defaults, no questions
- "With Next.js + Supabase" → technology specification
- "Introduce harness to existing project" → analyze existing code
Deliverables
- Real project generation (e.g., create-next-app) + initial setup
- Prepare
Plans.md/AGENTS.md/CLAUDE.md/.claude/ - Optional: Codex CLI compatibility (
.codex/+AGENTS.md) - Environment diagnosis → SSOT initialization → Final validation
- → Ready to run Plan→Work→Review immediately
Usage
/harness-init # Interactive setup (min 1 question)
/harness-init blog --mode=solo # With partial specification
/harness-init --stack=next-supabase # Specify tech stackFeature Details
| Feature | Reference |
|---|---|
| Execution Flow | See references/execution-flow.md |
| Smart Defaults | See references/smart-defaults.md |
| Generated Files | See references/generated-files.md |
Optimized Flow
Before: Up to 11 dialogue rounds After: Minimum 1, maximum 2 dialogue rounds
Step 1: Unified question (1 time)
├─ What are you building?
├─ Who will use it?
└─ Leave it to me or detailed settings?
Step 2: Confirmation (skip if "leave it to me")
└─ Tech stack + project name
→ Execute setup (includes background analysis)
Step 3: Completion reportArguments
| Argument | Description | Example |
|---|---|---|
[project description] | What to build | "EC site" |
--mode | solo / 2agent | --mode=solo |
--stack | Tech stack | --stack=next-supabase |
--name | Project name | --name=my-app |
--lang | Language | --lang=en |
Smart Defaults
| Item | Default | Auto-determination |
|---|---|---|
| Language | ja | Config file |
| Mode | Solo | 2-Agent if.cursor/ exists |
| Tech stack | next-supabase | In auto mode |
| Skills Gate | Auto-configured | Adjust with /skills-update |
Next Steps
After setup:
- "
/plan-with-agentI want to create XXX" → Create plan - "
/work" → Execute tasks in Plans.md - "
npm run dev" → Start dev server - If you need Codex CLI: run
/setup codex