sdd-commit

sdd-commit is a skill for Claude Code, Codex from yi-john-huang/sdd-mcp. It costs 38 tokens per session (1,534 once invoked), scanned A, original, MIT.

A guide for writing commit messages and pull requests in an SDD workflow, using a consistent format such as identifying a feature, fix, or documentation change.

In plain words
What is it for?
Use it when committing code, creating pull requests, or documenting what changed.
Why use it?
It removes guesswork from naming commits and describing changes, making project history and code reviews easier to understand.

Skill for Claude CodeCodex

Part of the sdd-mcp plugin — 11 skills, 6 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/yi-john-huang/sdd-mcp/sdd-commit
Any agent
npx skills add yi-john-huang/sdd-mcp --skill sdd-commit
Clone the repo
git clone --depth 1 https://github.com/yi-john-huang/sdd-mcp

Made for: Claude Code, Codex.

Or install sdd-mcp, the plugin that ships this one along with the rest of its 11 skills, 6 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for sdd-commit

README.md
[![agentmods](https://agentmods.dev/badge/skills/yi-john-huang/sdd-mcp/sdd-commit.svg)](https://agentmods.dev/skills/yi-john-huang/sdd-mcp/sdd-commit)
Your own site
<a href="https://agentmods.dev/skills/yi-john-huang/sdd-mcp/sdd-commit"><img src="https://agentmods.dev/badge/skills/yi-john-huang/sdd-mcp/sdd-commit.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,534 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00038 $0.01534
Opus 5 $0.00019 $0.00767
Sonnet 5 $0.00008 $0.00307
Haiku 4.5 $0.00004 $0.00153

Measured 5d ago against content hash 3612aeb79ee6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

sdd-commit scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/sdd-commit/SKILL.md · 286 lines

How it starts

The opening of the file, as written. The whole thing — 286 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SDD Commit & PR Guidelines

Create clear, consistent commit messages and pull requests that document changes effectively.

Commit Message Format

Follow the Conventional Commits specification:

<type>(<scope>): <subject>

[optional body]

[optional footer(s)]

Type Prefixes

Type When to Use Example
feat New feature feat(auth): add JWT refresh token
fix Bug fix fix(api): handle null user response
docs Documentation only docs(readme): update installation steps
style Formatting, no code change style(lint): fix linter warnings
refactor Code change, no new feature or fix refactor(user): extract validation logic
perf Performance improvement perf(query): add index for user lookup
test Adding/updating tests test(auth): add login failure tests
build Build system changes build(deps): update dependencies
ci CI/CD changes ci(github): add test workflow
chore Other changes chore(deps): bump lodash version
revert Revert previous commit revert: feat(auth): add JWT refresh

Scope

The scope should indicate the area affected:

feat(auth):       # Authentication module
fix(api/users):   # Users API endpoint
docs(readme):     # README file
test(e2e):        # End-to-end tests
refactor(db):     # Database layer

Subject Line

  • Use imperative mood: "add" not "added" or "adds"
  • Don't capitalize first letter
  • No period at the end
  • Max 50 characters
# GOOD
feat(auth): add password reset flow
fix(cart): prevent duplicate items

# BAD
feat(auth): Added password reset flow.
fix(cart): Fixes the duplicate items bug

Body (Optional)

Use for explaining:

  • What changed and why
  • Breaking changes
  • Related issues
feat(auth): add multi-factor authentication

Implement TOTP-based 2FA for enhanced security.
Users can now enable 2FA from their profile settings.

- Add TOTP secret generation
- Add QR code for authenticator apps
- Add backup codes for recovery

Closes #123

Read the full file on GitHub · 286 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 286 lines · 38 tokens per session scan A 3612aeb79ee6

Subscribe to this mod's changes

sdd-commit is a skill published in the GitHub repository yi-john-huang/sdd-mcp (51 stars, last pushed 1mo ago), licensed MIT. It adds 38 tokens to every session and 1,534 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.