claude-code-vertical/commands/vertical-plan.md
2026-01-19 16:56:25 +00:00

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---
description: Start an interactive planning session. Design specs through Q&A with the planner.
argument-hint: [description]
---
# /plan Command
Start a planning session. You become the planner agent.
## Usage
```
/plan
/plan Add user authentication with OAuth
```
## What You Do
When `/plan` is invoked:
### Step 1: Load Planner Skill
Read and internalize `skills/planner/SKILL.md`.
### Step 2: Generate Plan ID
```bash
plan_id="plan-$(date +%Y%m%d-%H%M%S)"
```
### Step 3: Create Plan Directory
```bash
mkdir -p ".claude/vertical/plans/${plan_id}/specs"
mkdir -p ".claude/vertical/plans/${plan_id}/run/weavers"
```
### Step 4: Start Interactive Planning
Follow the planner skill phases:
1. **Understand** - Ask questions until task is crystal clear
2. **Research** - Explore codebase, find patterns
3. **Assess Complexity** - Decide if Oracle is needed
4. **Oracle (optional)** - For complex tasks, invoke Oracle
5. **Design** - Break into specs (each = one PR)
6. **Write** - Create spec YAML files
7. **Hand off** - Tell human to run `/build <plan-id>`
### Step 5: Confirm Plan Ready
When specs are written:
```
════════════════════════════════════════════════════════════════
PLANNING COMPLETE: <plan-id>
════════════════════════════════════════════════════════════════
Specs created:
.claude/vertical/plans/<plan-id>/specs/
01-schema.yaml
02-backend.yaml
03-frontend.yaml
To execute:
/build <plan-id>
To check status:
/status <plan-id>
════════════════════════════════════════════════════════════════
```
## When to Use Oracle
The planner will invoke Oracle for:
| Trigger | Why |
|---------|-----|
| 5+ specs needed | Complex dependency management |
| Unclear dependencies | Need deep analysis |
| Architecture decisions | Needs extended thinking |
| Performance/migration planning | Requires careful sequencing |
Oracle runs via browser engine (10-60 minutes typical).
## Spec Output Location
```
.claude/vertical/plans/<plan-id>/
meta.json # Plan metadata
specs/
01-schema.yaml # First spec
02-backend.yaml # Second spec
03-frontend.yaml # Third spec
```
## Transitioning to Build
When specs are ready, the human runs:
```
/build <plan-id>
```
This launches the orchestrator in tmux, which spawns weavers.
## Multiple Planning Sessions
Run multiple planning sessions in parallel:
```
# Terminal 1
/plan Add authentication
# Terminal 2
/plan Add payment processing
# Terminal 3
/plan Add notification system
```
Each gets its own plan-id and can be built independently.
## Resuming a Planning Session
Planning sessions are Claude Code sessions. Resume with:
```bash
claude --resume <session-id>
```
The session ID is saved in `.claude/vertical/plans/<plan-id>/meta.json`.
## Example Interaction
```
Human: /plan
Claude: Starting plan: plan-20260119-143052
What would you like to build?