Sdd Init

Skill: sdd-init

Invocation

/sdd-init <slug> [notion-url] [--mode standard|auto]

Arguments:

• <slug> — kebab-case identifier for the feature (e.g. user-invitation, supplier-csv-import)
• [notion-url] — optional Notion page URL to fetch and archive as source material
• [--mode standard|auto] — workflow mode (default: standard)
  • standard: engineer-led — AI assists, human drives decisions
  • auto: AI-led — suitable for non-engineers; AI asks questions and makes decisions autonomously

Purpose

Initialize a spec directory for a new feature under .claude/specs/<slug>/. This is always the first step in the SDD workflow. It creates the directory structure, optionally fetches a Notion page as source material, and records the chosen mode in progress.md.

Execution Steps

Step 1: Validate inputs

• Confirm <slug> is kebab-case (lowercase letters, digits, hyphens only).
• If --mode is not provided, default to standard.
• Announce to the user: "Initializing spec for <slug> in --mode <mode>."

Step 2: Create directory structure

Create the following empty directories and files under .claude/specs/<slug>/:

.claude/specs/<slug>/
├── review-results/      ← subdirectory for review output files
├── progress.md          ← created in this step
├── change-log.md        ← created in this step
├── requirements.md      ← placeholder (created by sdd-requirements)
├── design.md            ← placeholder (created by sdd-design)
└── tasks.md             ← placeholder (created by sdd-tasks)

Run:

mkdir -p .claude/specs/<slug>/review-results/

Write placeholder files with a single comment line:

<!-- Artifact not yet generated. Run the corresponding sdd-* skill. -->

Step 3: Fetch Notion page (if notion-url provided)

If a Notion URL is given:

1. Extract the page ID from the URL (last 32-character hex segment, with or without hyphens).
2. Call mcp__claude_ai_Notion__notion-fetch with the page ID.
3. Write the raw Markdown content to .claude/specs/<slug>/source-notion.md.
4. If the fetch fails, warn the user and continue without the source file.

If no Notion URL is given, skip this step.

Step 4: Write progress.md and change-log.md

Write .claude/specs/<slug>/progress.md with the following structure:

# Spec Progress: <slug>

**Mode**: <standard|auto>
**Initialized**: <YYYY-MM-DD>
**Notion source**: <notion-url or "none">

## Phase Status

| Phase | Skill                   | Status         |
| ----- | ----------------------- | -------------- |
| 1     | sdd-requirements        | ⬜ not started |
| 2     | sdd-review-requirements | ⬜ not started |
| 3     | sdd-design              | ⬜ not started |
| 4     | sdd-tasks               | ⬜ not started |
| 5     | sdd-review-plan         | ⬜ not started |
| 6     | sdd-impl                | ⬜ not started |
| 7     | sdd-review              | ⬜ not started |
| 8     | sdd-pr                  | ⬜ not started |

## Files

| File                                         | Description                                           |
| -------------------------------------------- | ----------------------------------------------------- |
| `requirements.md`                            | EARS-format requirements                              |
| `design.md`                                  | Architecture and design decisions                     |
| `tasks.md`                                   | Task breakdown (TASK-xxx)                             |
| `review-results/requirement-review.md`       | Requirements Review findings                          |
| `review-results/plan-review.md`              | Plan Review + Traceability findings                   |
| `review-results/code-review.md`              | Code Review + Security Review findings                |
| `change-log.md`                              | Phase completion event log                            |

Write .claude/specs/<slug>/change-log.md with the following structure:

# Change Log: <slug>

| Date | Skill | Event |
|------|-------|-------|
| <YYYY-MM-DD> | sdd-init | スペック初期化 |

Step 5: Print confirmation

Print a summary of what was created, including:

• Directory path
• Mode recorded
• Whether a Notion source was fetched
• change-log.md initialized with first row
• The next step to take

Mode Behavior Summary

Notes

• The progress.md file is the single source of truth for the mode. Subsequent skills MUST read mode from progress.md rather than accepting a --mode flag themselves.
• If .claude/specs/<slug>/ already exists, warn the user and ask whether to overwrite or abort. Do NOT silently overwrite.
• The slug is used as-is in all file paths. Choose descriptive, stable slugs.

== PHASE COMPLETE: sdd-init == Artifact: .claude/specs//progress.md Summary:

• Created spec directory structure under .claude/specs//
• Recorded mode (standard|auto) in progress.md
• Fetched Notion source (if URL provided) → source-notion.md
• All placeholder artifacts initialized

⏸ WAITING FOR CONFIRMATION Type CONFIRM sdd-requirements to proceed. Or describe changes needed.