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succinctly: Skill for Claude Code

.claude/skills/commit-msg/SKILL.md

commit-msg is a skill for Claude Code from rust-works/succinctly. It costs 54 tokens per session (586 once invoked), scanned A, original, MIT.

A Git commit-writing guide that reads the changes in a commit and suggests a clearer message using the Conventional Commits format, a shared way to label changes such as features, fixes, and tests.

In plain words
What is it for?
Use it when writing, amending, reviewing, or rewording Git commit messages.
Why use it?
It helps avoid vague commit messages and makes a project’s history easier to understand.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

This is rust-works/succinctly's own configuration. It tells Claude Code how to work on succinctly itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything succinctly configures →

not rated 52repo changed 3d ago A scan SkillSpector: pass 54 tokens original MIT
View source ↗ rust-works/succinctly
Reuse

Borrowing it

Nothing to install: this file belongs to rust-works/succinctly. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/rust-works/succinctly/main/.claude/skills/commit-msg/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/rust-works/succinctly

Made for: Claude Code.

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 commit-msg

README.md
[![agentmods](https://agentmods.dev/badge/skills/rust-works/succinctly/commit-msg/github.svg)](https://agentmods.dev/skills/rust-works/succinctly/commit-msg)
Your own site
<a href="https://agentmods.dev/skills/rust-works/succinctly/commit-msg"><img src="https://agentmods.dev/badge/skills/rust-works/succinctly/commit-msg/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for commit-msg

Your own site · 80×15
<a href="https://agentmods.dev/skills/rust-works/succinctly/commit-msg"><img src="https://agentmods.dev/badge/skills/rust-works/succinctly/commit-msg.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 586 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00054 $0.00586
Opus 5.5 $0.00022 $0.00234
Sonnet 5.5 $0.00011 $0.00117
Haiku 4.5 $0.00005 $0.00059

Measured 3d ago against content hash b86e510205f8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

commit-msg 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 3d 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/commit-msg/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Commit Message Skill

Generates and improves commit messages following conventional commits format.

Conventional Commits Format

<type>(<scope>): <description>

[optional body]

[optional footer]

Types

Type Use For
feat New feature
fix Bug fix
docs Documentation only
style Formatting, no code change
refactor Code change that neither fixes a bug nor adds feature
perf Performance improvement
test Adding or updating tests
chore Maintenance tasks
ci CI/CD changes
build Build system changes

Scopes

See .omni-dev/scopes.yaml for the canonical, enforced scope list — do not duplicate it here.

Examples

Feature Addition

feat(json): add PFSM table-driven parser

Implements parallel finite state machine approach from hw-json-simd.
Achieves 880 MiB/s throughput on x86_64 (AMD Zen 4), 40-77% faster than scalar.

Bug Fix

fix(bp): correct find_close for edge case at word boundary

Fixes #42

Performance Improvement

perf(popcount): add AVX-512 VPOPCNTDQ implementation

5.2x faster than scalar for large bitvectors.
Requires Intel Ice Lake+ or AMD Zen 4+.

Refactoring

refactor(jq): replace deprecated last() with next_back()

Removes dead code and simplifies iterator handling.

Instructions

  1. Read the staged changes with git diff --cached
  2. Understand what changed and why
  3. Choose appropriate type and scope
  4. Write a concise subject line (50 chars ideal, 72 max)
  5. Add body if changes need explanation
  6. Include footer for breaking changes or issue references

Read the full file on GitHub · 93 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. 1mo ago Changed · -1 lines 41c5f470ac8c
  2. 2mo ago First seen · 93 lines · 54 tokens per session scan A b86e510205f8

Subscribe to this mod's changes

commit-msg is a skill published in the GitHub repository rust-works/succinctly (52 stars, last pushed yesterday), licensed MIT. It adds 54 tokens to every session and 586 once invoked, about $0.0002 per session on Opus 5.5. 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.

CommitsGit and workflow
Related

commit-msg compared with skills from other repositories

commit-msg next to 6 skills from other repositories
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engineer-bot-opsmakecindy/cindySkill9.3kyesterdayApache-2.0A57Claude Code, Codex
mcore-split-prNVIDIA/skillsSkill3.9kyesterdayApache-2.0A25Claude Code
git-commit-writermergisi/awesome-openclaw-agentsSkill4.1k2d agoMITA53Claude Code, Codex