---
name: cai-init
description: "Use when setting up CAI for a project. Triggers: 'CAI setup', 'cai-init', 'context initialize', 'CAI 세팅', 'context 초기화'"
---

# cai-init — Initialize CAI

## Overview

Sets up the CAI infrastructure in a target project. Creates directory structure, copies rules/hooks/skills/agents, and triggers onboarding.

## When to Use

- First time setting up CAI in a project.
- Developer says "set up CAI" or "cai-init".
- Use `--new` flag for brand-new projects with no existing code.
- Use `--force` flag to overwrite existing files (skip protection disabled).

## Workflow

### Step 1: Detect project root

Confirm the current working directory is the project root. Look for signals: `.git/`, `package.json`, `Cargo.toml`, `go.mod`, `pyproject.toml`, or similar. If uncertain, ask the developer.

### Step 2: Check existing context

Check if `context/` directory already exists.
- If it exists and `--force` is not set: warn the developer and ask whether to proceed (skip existing files) or abort.
- If it exists and `--force` is set: proceed, overwriting all files.

### Step 3: Create directory structure

Copy the directory scaffold from the plugin templates:

```
${CLAUDE_PLUGIN_ROOT}/templates/context/ → context/
```

This creates:
- `context/.gitkeep`
- `context/decisions/.gitkeep`
- `context/issues/.gitkeep`
- `context/conventions/.gitkeep`
- `context/specs/.gitkeep`
- `context/roadmap/planned/.gitkeep`
- `context/roadmap/exploring/.gitkeep`
- `context/roadmap/completed/.gitkeep`

### Step 4: Copy rules file

```
${CLAUDE_PLUGIN_ROOT}/templates/rules/cai.md → .claude/rules/cai.md
```

Create `.claude/rules/` directory if it does not exist. Do not overwrite if the file already exists (skip with notice), unless `--force`.

### Step 5: Copy tools

Copy all files in the tools template:

```
${CLAUDE_PLUGIN_ROOT}/templates/tools/drift-warning.js → tools/drift-warning.js
${CLAUDE_PLUGIN_ROOT}/templates/tools/cai.py           → tools/cai.py
${CLAUDE_PLUGIN_ROOT}/templates/tools/requirements.txt → tools/requirements.txt
```

Create `tools/` directory if it does not exist. Do not overwrite existing files (skip with notice), unless `--force`.

`cai.py` is the AI-facing CLI for context search/impact analysis (see `docs/designs/cli-design.md`). `requirements.txt` lists its Python dependencies — inform the developer they may need to `pip install -r tools/requirements.txt`.

### Step 6: Copy AGENTS.md

```
${CLAUDE_PLUGIN_ROOT}/templates/AGENTS.md → AGENTS.md
```

Do not overwrite if the file already exists (skip with notice), unless `--force`.

### Step 7: Copy daily-use skills

Copy these 8 skills from the plugin to the target project:

```
${CLAUDE_PLUGIN_ROOT}/skills/cai-onboard/SKILL.md      → .claude/skills/cai-onboard/SKILL.md
${CLAUDE_PLUGIN_ROOT}/skills/cai-add-spec/SKILL.md     → .claude/skills/cai-add-spec/SKILL.md
${CLAUDE_PLUGIN_ROOT}/skills/cai-add-decision/SKILL.md → .claude/skills/cai-add-decision/SKILL.md
${CLAUDE_PLUGIN_ROOT}/skills/cai-add-agent/SKILL.md    → .claude/skills/cai-add-agent/SKILL.md
${CLAUDE_PLUGIN_ROOT}/skills/cai-add-roadmap/SKILL.md  → .claude/skills/cai-add-roadmap/SKILL.md
${CLAUDE_PLUGIN_ROOT}/skills/cai-capture-lesson/SKILL.md → .claude/skills/cai-capture-lesson/SKILL.md
${CLAUDE_PLUGIN_ROOT}/skills/cai-drift-check/SKILL.md  → .claude/skills/cai-drift-check/SKILL.md
${CLAUDE_PLUGIN_ROOT}/skills/cai-interview/SKILL.md    → .claude/skills/cai-interview/SKILL.md
```

Create `.claude/skills/` directories as needed. Skip existing files with notice unless `--force`.

### Step 8: Copy agents

Copy all 10 agents from the plugin to the target project:

```
${CLAUDE_PLUGIN_ROOT}/agents/structure-scanner.md      → .claude/agents/structure-scanner.md
${CLAUDE_PLUGIN_ROOT}/agents/module-analyst.md         → .claude/agents/module-analyst.md
${CLAUDE_PLUGIN_ROOT}/agents/draft-generator.md        → .claude/agents/draft-generator.md
${CLAUDE_PLUGIN_ROOT}/agents/relationship-mapper.md    → .claude/agents/relationship-mapper.md
${CLAUDE_PLUGIN_ROOT}/agents/convention-extractor.md   → .claude/agents/convention-extractor.md
${CLAUDE_PLUGIN_ROOT}/agents/constitution-assembler.md → .claude/agents/constitution-assembler.md
${CLAUDE_PLUGIN_ROOT}/agents/verification-agent.md     → .claude/agents/verification-agent.md
${CLAUDE_PLUGIN_ROOT}/agents/context-gardener.md       → .claude/agents/context-gardener.md
${CLAUDE_PLUGIN_ROOT}/agents/code-reviewer.md          → .claude/agents/code-reviewer.md
${CLAUDE_PLUGIN_ROOT}/agents/spec-writer.md            → .claude/agents/spec-writer.md
```

Create `.claude/agents/` directory if needed. Skip existing files with notice unless `--force`.

### Step 9: Propose settings.json hook registration

Read `.claude/settings.json` if it exists. Propose adding the drift-warning hook:

```json
{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Edit|Write|MultiEdit",
        "hooks": [
          {
            "type": "command",
            "command": "node tools/drift-warning.js \"$TOOL_INPUT\""
          }
        ]
      }
    ]
  }
}
```

If `.claude/settings.json` already exists with other hooks, propose **merging** the new hook into the existing `PreToolUse` array. Show the proposed change and ask for approval. Do **not** modify settings.json without explicit approval.

### Step 10: Propose CLAUDE.md additions

Do **not** modify CLAUDE.md directly. Propose adding a `Context Infrastructure` section:

```markdown
@.claude/rules/cai.md

## Context Infrastructure
This project uses CAI.
- Knowledge base: context/
- Rules: .claude/rules/cai.md (imported above — auto-loaded every session)
- Drift detection: tools/drift-warning.js

### Context CLI — `tools/cai.py`

AI-facing CLI for context/ search, impact analysis, and state management.
**Always run this CLI BEFORE exploring source code.** Ad-hoc grep/glob misses context that only exists in documents (roadmap, decisions, rationale).

Setup (one-time): `pip install -r tools/requirements.txt`

Commands:
- `./tools/cai.py suggest <file|dir|module>` — related context docs + snippets for a target
- `./tools/cai.py search "<keywords>"` — keyword search across all context docs
- `./tools/cai.py budget --task "<description>" [-n N]` — top-N most relevant docs for a task (default 10)
- `./tools/cai.py impact <file|dir|module>` — downstream modules/specs affected by a change
- `./tools/cai.py status` — overall context health summary
- `./tools/cai.py list [--type <type>] [--tag <tag>]` — filter docs by type/tag
- `./tools/cai.py diff <target>` — source changes since a spec's `last_synced`
- `./tools/cai.py validate [--fix]` — frontmatter schema validation
- `./tools/cai.py update-synced <target>` — refresh a doc's `last_synced` to today

Append `--json` to any command for JSON output.

When to use which (always BEFORE reading source code):
- Starting work on a file/module → `suggest` then `impact`
- Planning a task from description → `budget --task`
- Unsure which doc to read → `search`
- After modifying code that a spec covers → `update-synced`
```

The first line (`@.claude/rules/cai.md`) is critical: Claude Code does not auto-load `.claude/rules/`, so this import is what activates the CAI behavior rules every session. Without it, the rules file is dead weight.

Show the proposed block and ask the developer to add it. If CLAUDE.md does not exist, propose creating one with this content plus a basic project section.

### Step 11: Auto-trigger cai-onboard

After setup is complete:
- If `--new` flag was provided: skip onboarding, inform the developer that context will be built as the project grows.
- Otherwise: automatically invoke the `cai-onboard` skill to analyze the existing codebase and generate initial context documents.

## Output

Files created/copied as listed above. Summary of what was created, what was skipped, and any pending proposals (settings.json, CLAUDE.md).

## Error Handling

- If a copy fails, report the error and continue with remaining files.
- Never leave a half-initialized state — if critical files (rules, context directory) fail, abort and clean up.
- If `${CLAUDE_PLUGIN_ROOT}` cannot be resolved, report the error clearly.