Borrowing it
Nothing to install: this file belongs to matteing/opal. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/matteing/opal/main/.claude/skills/git/SKILL.mdgit clone --depth 1 https://github.com/matteing/opalWrote 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.
[](https://agentmods.dev/skills/matteing/opal/git)<a href="https://agentmods.dev/skills/matteing/opal/git"><img src="https://agentmods.dev/badge/skills/matteing/opal/git/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.
<a href="https://agentmods.dev/skills/matteing/opal/git"><img src="https://agentmods.dev/badge/skills/matteing/opal/git.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00033 | $0.00764 |
| Opus 5.5 | $0.00013 | $0.00306 |
| Sonnet 5.5 | $0.00007 | $0.00153 |
| Haiku 4.5 | $0.00003 | $0.00076 |
Grade A, and why
git 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 2mo 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.
How it starts
The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Git Conventional Commit Skill
You enforce Conventional Commits on every commit in this repository. This is critical for consistent changelogs and semantic version bumps.
Commit message format
Every commit message MUST follow this format:
<type>(<scope>): <description>
[optional body]
[optional footer(s)]
Types (required)
| Type | When to use | Version bump |
|---|---|---|
feat |
A new feature or capability | minor |
fix |
A bug fix | patch |
docs |
Documentation only | none |
style |
Formatting, semicolons, whitespace — no logic | none |
refactor |
Code change that neither fixes a bug nor adds a feature | none |
perf |
Performance improvement | patch |
test |
Adding or correcting tests | none |
build |
Build system or external dependency changes | none |
ci |
CI configuration changes | none |
chore |
Maintenance tasks (deps, tooling, releases) | none |
Scopes (recommended)
Use a scope to identify the affected area:
| Scope | Meaning |
|---|---|
core |
Elixir core (lib/opal/ directory) |
cli |
TypeScript CLI (cli/ directory) |
rpc |
JSON-RPC protocol layer |
agent |
Agent loop / GenServer |
tools |
Built-in tool implementations |
ci |
GitHub Actions workflows |
release |
Release and versioning infrastructure |
docs |
Documentation |
sdk |
TypeScript SDK client |
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.
- 2mo ago First seen · 89 lines · 33 tokens per session scan A 30d96b44d988
git is a skill published in the GitHub repository matteing/opal (62 stars, last pushed 2mo ago), licensed MIT. It adds 33 tokens to every session and 764 once invoked, about $0.0001 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.
git compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| gitmatteing/opal | Skill | 62 | 2mo ago | MIT | A | 33 | Claude Code |
| conventional-commitsjnMetaCode/skillet | Skill | 2 | 1mo ago | MIT | A | 32 | Claude Code, Codex |
| resolve-publishomnigent-ai/omnigent | Skill | 11k | yesterday | Apache-2.0 | A | 21 | Claude Code, Codex |
| feature-publishomnigent-ai/omnigent | Skill | 11k | yesterday | Apache-2.0 | A | 24 | Claude Code, Codex |
| ci-commithumanlayer/humanlayer | Skill | 13k | yesterday | Apache-2.0 | A | 16 | Claude Code |
| pod-initSnowflake-Labs/cocoplus | Skill | 727 | 2d ago | MIT | A | 57 | Claude Code, Codex |
| lean-reviewSnowflake-Labs/cocoplus | Skill | 727 | 2d ago | MIT | A | 44 | Claude Code |