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.
npx skills add naorpeled/awesome-oss-skills --skill first-oss-contributiongit clone --depth 1 https://github.com/naorpeled/awesome-oss-skillsWrote 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/naorpeled/awesome-oss-skills/first-oss-contribution)<a href="https://agentmods.dev/skills/naorpeled/awesome-oss-skills/first-oss-contribution"><img src="https://agentmods.dev/badge/skills/naorpeled/awesome-oss-skills/first-oss-contribution/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/naorpeled/awesome-oss-skills/first-oss-contribution"><img src="https://agentmods.dev/badge/skills/naorpeled/awesome-oss-skills/first-oss-contribution.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00046 | $0.00887 |
| Opus 5 | $0.00023 | $0.00443 |
| Sonnet 5 | $0.00009 | $0.00177 |
| Haiku 4.5 | $0.00005 | $0.00089 |
Grade A, and why
first-oss-contribution 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 11d 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 — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.
First OSS contribution
Use this skill when a contributor wants to move from orientation to a small, successful first pull request.
Primary inputs
- issue text or requested task
- a repository/issue discovery source when no repository is chosen yet (e.g. the goodfirstissues data feed, up-for-grabs.net, goodfirstissue.dev, CodeTriage, or firstcontributions/first-contributions)
README.mdCONTRIBUTING.md- relevant code or docs files
- issue labels, issue templates, and pull request templates
Instructions
Confirm which repository to use
- Check whether the current working context is already inside a cloned
repository (e.g. a
.gitdirectory is present). - If it is, do not assume that repository is the target. Ask the contributor whether they want to work in the current repository or a different one before doing any deeper investigation.
- If they confirm the current repository, gather context directly from it (skip discovery sources below). Otherwise, or if there is no repository present at all, continue with the discovery step below.
When no repository is specified yet
- If the contributor has not picked a repository or issue, help them find
one using well-known discovery sources instead of guessing:
- goodfirstissues data
feed
as the first stop — a frequently updated, scraped dataset of live
good first issue-labeled issues across many projects - firstcontributions/first-contributions for a hands-on, no-stakes practice contribution
- up-for-grabs.net for projects that actively
want help and label issues
up-for-grabs,jump-in, orhelp wanted - goodfirstissue.dev for curated easy issues from popular projects
- CodeTriage to subscribe to a project and receive a new open issue to work on regularly
- goodfirstissues data
feed
as the first stop — a frequently updated, scraped dataset of live
- Match the source to the contributor's goal: prefer the goodfirstissues
data feed when they want a real, currently open issue to pick from right
now, use
first-contributionsfor a pure workflow-learning exercise, and the other aggregator sites/CodeTriage when they want a real issue in a project they may keep contributing to. - Once a candidate repository or issue is chosen, continue with the steps below.
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.
- 11d ago First seen · 99 lines · 46 tokens per session scan A 0b05c93f7edc
first-oss-contribution is a skill published in the GitHub repository naorpeled/awesome-oss-skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 46 tokens to every session and 887 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 2026-08-31.
Other skills, from other repositories
prowler-commit
Creates professional git commits following conventional-commits format. Trigger: When creating commits, after completing code changes, when user asks to commit.
gh-auth-isolation
Safely manage multiple GitHub identities (EMU + personal) in agent workflows.
comet-github
A routing guide for Comet-related GitHub work. It directs requests about pull requests, issues, CI failures, ideas, and fixes to the appropriate review or implementation process.
github-skill
Work with GitHub via the gh CLI — clone repositories, create/list/merge pull requests, create/list issues, and run any other gh command (API calls, workflow runs, releases, repo administration). List operations return parsed JSON.
changelog-composer
Generates structured changelogs and release notes from git history and PRs, classifying breaking changes, features, fixes, performance, docs. Triggers on: "generate changelog", "write release notes", "what changed since", "prepare release", "release notes for", "diff since tag".
re0-merge
Review and land an external contribution the way this suite does: gate it against the thesis, land it with the author's credit intact, complete a new skill rather than merging it raw, then approve, credit, and explain before closing. Use when reviewing a pull request, as any collaborator or maintainer, not only the…