Claude Code Skills Marketplace is a collection and marketplace of skills, plugins, agents, and instructions that extend Claude Code with specialized development workflows. It is for developers who want to install existing workflows or create, validate, and package their own Claude Code skills.
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 agentmods add skills/daymade/claude-code-skills/github-contributornpx skills add daymade/claude-code-skills --skill github-contributorgit clone --depth 1 https://github.com/daymade/claude-code-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/daymade/claude-code-skills/github-contributor)<a href="https://agentmods.dev/skills/daymade/claude-code-skills/github-contributor"><img src="https://agentmods.dev/badge/skills/daymade/claude-code-skills/github-contributor.svg" alt="Measured on agentmods" 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 | $0.00133 | $0.04496 |
| Opus 5 | $0.00067 | $0.02248 |
| Sonnet 5 | $0.00027 | $0.00899 |
| Haiku 4.5 | $0.00013 | $0.00450 |
Grade A, and why
github-contributor 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 yesterday.
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 — 319 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GitHub Contributor
A phase-based playbook for shipping pull requests that maintainers actually want to merge. The skill is structured around the real PR lifecycle — discovery → implementation → quality gates → description → post-submission — because each phase has its own failure modes and the most common mistake is doing the right thing at the wrong phase (e.g., writing the perfect description for a PR that's 10× too large).
Phase 0 — When to use this skill
Use this skill when all of these are true:
- You are contributing to a repo you do not maintain (the maintainer can close your PR without explanation).
- The work touches one or more of: source code, tests, docs, build config.
- You want the PR merged, not just submitted.
Do not use this for: your own repos, internal team PRs with shared context, hot-fix branches where a maintainer is waiting on you, or trivial single-line changes (one comment is enough).
Phase 1 — Pre-PR Discovery
The most common reason PRs get closed is a mismatch between what the contributor assumes is acceptable and what the maintainer has already written down. Solve this before writing code.
Step 1.1 — Read CONTRIBUTING.md as a hard contract
CONTRIBUTING.md is not style advice. Treat every numbered rule as a precondition for merge. Pay special attention to:
- AI-assisted contribution clauses. Many projects added these in 2024-2026 after the AI PR wave. Typical phrasing: "AI-generated PRs without prior discussion may be closed", "you must be able to explain every line", "one issue, one PR". If this clause exists, you owe the project explicit disclosure (see Phase 4) and you must keep the PR small.
- Issue-first rules. Some projects require a feature-request issue to exist before any feature PR is opened.
- Per-language test commands. If CONTRIBUTING.md says
pnpm test:unit && cargo test, those are the commands you run, not whatever your IDE prefers.
If CONTRIBUTING.md is missing, that itself is a red flag — see references/project_evaluation.md.
What ships with it
13 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- .security-scan-passed 181 B
- references/case_study_cc-switch_pr_1624.md 5.6 KB
- references/case_study_cc-switch_pr_2634.md 14 KB
- references/communication_templates.md 5.3 KB
- references/high_quality_pr_case_study.md 8.0 KB
- references/phase1_discovery.md 7.1 KB
- references/phase2_implementation.md 8.5 KB
- references/phase3_quality_gates_and_e2e.md 10 KB
- references/phase4_pr_description.md 9.1 KB
- references/phase5_post_submission.md 9.1 KB
- references/pr_checklist.md 6.8 KB
- references/project_evaluation.md 3.3 KB
- references/push_time_gotchas.md 3.0 KB
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.
- yesterday First seen · 319 lines · 133 tokens per session scan A c748297b542e
github-contributor is a skill published in the GitHub repository daymade/claude-code-skills (1,375 stars, last pushed yesterday), licensed MIT. It adds 133 tokens to every session and 4,496 once invoked, about $0.0007 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 2026-09-03.
Other skills, from other repositories
test-repo
Use this skill to test strategy changes against a fresh test repository. Invoke when the user asks to "test against a test repo", "validate the changes", or wants to verify session hooks, commits, and checkpoint creation work correctly.
git-commit
Generate well-formatted git commit messages following conventional commit standards.
commit-push-pr
Commit selected local changes, push the branch, and create or update a GitHub pull request with BitFun attribution. Use when the user asks to 提交 PR、提代码、commit and push、开 PR、create a pull request, or wants a Claude Code-like one-command PR publishing flow from BitFun.
commit
Commit current changes with a clear, descriptive message.
contributing
How to contribute to evlog, covering commit and PR conventions, changesets, the Definition of Done, testing rules, and the authored skills that walk through building a new adapter, enricher, framework integration, or map rule. Load this for any question about contributing, opening a PR, or adding something to the…
git-commit
Creates git commits following Conventional Commits format with type/scope/subject and detailed markdown body. Use when user wants to commit changes, create commit, save work, or stage and commit. Enforces project-specific conventions from CLAUDE.md. Each change type gets its own markdown heading (# emoji + type), with…