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Agent skill

GitHub Openapi Skill

by holon-run in holon-run/uxc

Operate GitHub REST API through UXC with the official OpenAPI schema, explicit gh-to-uxc auth import, and read-first guardrails for repo, issue, pull request, and event workflows.

MITAuto-check passedBackend & APIs

Install GitHub Openapi Skill

skills CLI
$ npx skills add holon-run/uxc --skill github-openapi-skill -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install holon-run/uxc github-openapi-skill --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/github-openapi-skill .claude/skills/github-openapi-skill && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
github-openapi-skill
GitHub stars
116
Token cost
~899 tokens
SKILL.md length
267 words
Files
4 (incl. scripts, references)
Skills in repo
62
Repo updated
First seen
Licence
MIT

At a glance

Operate GitHub REST API through UXC with the official OpenAPI schema, explicit gh-to-uxc auth import, and read-first guardrails for repo, issue, pull request, and event workflows.

  • Works in 4 steps: Use fixed link command by default → Inspect operation schema first → Execute reads before writes → …
  • Tasks that involve OpenAPI specifications
  • SKILL.md covers Prerequisites, Authentication, Core Workflow and Guardrails, plus 1 more section
  • Runs Shell scripts from its folder; calls gh; reaches api.github.com and raw.githubusercontent.com; needs GITHUB_TOKEN

What it does

GitHub Openapi Skill is an agent skill from holon-run/uxc. Operate GitHub REST API through UXC with the official OpenAPI schema, explicit gh-to-uxc auth import, and read-first guardrails for repo, issue, pull request, and event workflows.

Its SKILL.md is about 900 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/usage-patterns.md` and `scripts/validate.sh`).

It sits in Backend & APIs, covering OpenAPI specifications and REST APIs. It works with GitHub and OpenAPI. The repository describes itself as: A unified CLI for discovering and invoking tools across OpenAPI, MCP, GraphQL, gRPC, and JSON-RPC. The licence is MIT.

When your agent uses it

  • Tasks that involve OpenAPI specifications
  • Tasks that involve REST APIs

Example prompts

  • “/github-openapi-skill”

Requirements

  • A Bash shell
  • A credential in GITHUB_TOKEN

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Use fixed link command by default
  2. Inspect operation schema first
  3. Execute reads before writes
  4. Treat mutations as explicit-confirmation operations

What it can do on your machine

Read from SKILL.md and the folder at commit 562d47c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Shell), which the agent can run.

    Shell commands in SKILL.md call:

    • gh

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • api.github.com
    • raw.githubusercontent.com
    • docs.github.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • GITHUB_TOKEN

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

GitHub Openapi Skill loads about 899 tokens when it runs, and up to ~1.1k if it reads all its reference files. Until then it costs about 50 tokens; SKILL.md has 267 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~50
When it runs · the whole SKILL.md, loaded when a task matches
~899
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from holon-run/uxc at commit 562d47c, republished under its MIT licence (© holon-run). 267 words, ~899 tokens.

Download SKILL.mdSave it as .claude/skills/github-openapi-skill/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
github-openapi-skill
description
Operate GitHub REST API through UXC with the official OpenAPI schema, explicit gh-to-uxc auth import, and read-first guardrails for repo, issue, pull request, and event workflows.

GitHub REST API Skill

Use this skill to run GitHub REST API operations through uxc + OpenAPI.

Reuse the uxc skill for shared execution, auth, and error-handling guidance.

Prerequisites

  • uxc is installed and available in PATH.
  • gh is installed and already authenticated with gh auth login.
  • Network access to https://api.github.com.
  • Access to the official GitHub REST OpenAPI schema URL:
    • https://raw.githubusercontent.com/github/rest-api-description/main/descriptions/api.github.com/api.github.com.json

Authentication

Preferred Path: Import local gh auth into uxc

Import the current GitHub CLI token into a local uxc bearer credential and create a standard GitHub API binding:

bash
uxc auth credential import github --from gh

This creates:

  • credential: github
  • binding: github-api
  • bound host: https://api.github.com

Verify the binding:

bash
uxc auth binding match https://api.github.com/repos/holon-run/uxc
Optional Path: Manual bearer token

If gh is unavailable, configure a PAT manually:

bash
uxc auth credential set github \
  --auth-type bearer \
  --secret-env GITHUB_TOKEN

uxc auth binding add \
  --id github-api \
  --host api.github.com \
  --path-prefix / \
  --scheme https \
  --credential github \
  --priority 100

Do not commit GitHub tokens or hardcode them in this skill or repository.

Core Workflow

  1. Use fixed link command by default:

    • command -v github-openapi-cli
    • If missing, create it: uxc link github-openapi-cli https://api.github.com --schema-url https://raw.githubusercontent.com/github/rest-api-description/main/descriptions/api.github.com/api.github.com.json
    • github-openapi-cli -h

  2. Inspect operation schema first:

    • github-openapi-cli get:/user -h
    • github-openapi-cli get:/repos/{owner}/{repo} -h
    • github-openapi-cli get:/repos/{owner}/{repo}/issues -h

  3. Execute reads before writes:

    • github-openapi-cli get:/user
    • github-openapi-cli get:/repos/{owner}/{repo} owner=holon-run repo=uxc
    • github-openapi-cli get:/repos/{owner}/{repo}/issues owner=holon-run repo=uxc state=open per_page=10
    • github-openapi-cli get:/repos/{owner}/{repo}/pulls owner=holon-run repo=uxc state=open per_page=10

  4. Treat mutations as explicit-confirmation operations:

    • github-openapi-cli post:/repos/{owner}/{repo}/issues '{"owner":"holon-run","repo":"uxc","title":"Example issue"}'

Guardrails

  • Keep automation on JSON output envelope; do not use --text.
  • Parse stable fields first: ok, kind, protocol, data, error.
  • github-openapi-cli <operation> ... is equivalent to uxc https://api.github.com --schema-url https://raw.githubusercontent.com/github/rest-api-description/main/descriptions/api.github.com/api.github.com.json <operation> ....
  • Prefer read operations before write operations.
  • Treat issue creation, issue edits, comments, labels, repo administration, releases, and workflow-trigger endpoints as write/high-risk operations; require explicit user confirmation before execution.

References

  • Usage patterns: references/usage-patterns.md
  • GitHub REST OpenAPI schema: https://raw.githubusercontent.com/github/rest-api-description/main/descriptions/api.github.com/api.github.com.json
  • GitHub REST docs: https://docs.github.com/rest

© holon-run, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (scripts, references) in skills/github-openapi-skill of holon-run/uxc.

  • SKILL.md
  • agents/openai.yaml
  • references/usage-patterns.md
  • scripts/validate.sh

Open the folder on GitHubat commit 562d47c

Compare with similar skills

GitHub Openapi Skill next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

GitHub Openapi Skill compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
GitHub Openapi Skill this skillholon-run/uxc116—~899Automated safety check: PassMIT
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API DesignerJeffallan/claude-skills12k2 repos~2kAutomated safety check: PassMIT
OpenAPI to MCP Servermcp-use/mcp-use11k—~5.2kAutomated safety check: PassApache-2.0
Use Yaakmountain-loop/yaak19k—~1.9kAutomated safety check: PassMIT
Old Coder API DesignAmazingAng/old-coder7491 repos~3.4kAutomated safety check: PassMIT

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Works with

Categories

Questions about GitHub Openapi Skill

What does GitHub Openapi Skill do?

Operate GitHub REST API through UXC with the official OpenAPI schema, explicit gh-to-uxc auth import, and read-first guardrails for repo, issue, pull request, and event workflows. GitHub Openapi Skill is an agent skill from holon-run/uxc. Operate GitHub REST API through UXC with the official OpenAPI schema, explicit gh-to-uxc auth import, and read-first guardrails for repo, issue, pull request, and event workflows.

When should I use GitHub Openapi Skill?

GitHub Openapi Skill fits situations like: tasks that involve OpenAPI specifications; tasks that involve REST APIs.

How do I install GitHub Openapi Skill in Claude Code?

Run `npx skills add holon-run/uxc --skill github-openapi-skill -a claude-code`. Or copy the skill folder (skills/github-openapi-skill in holon-run/uxc) into .claude/skills/github-openapi-skill in your project. Claude Code loads it when a task matches its description.

How do I install GitHub Openapi Skill in Codex?

Run `npx skills add holon-run/uxc --skill github-openapi-skill -a codex`. Or copy the skill folder (skills/github-openapi-skill in holon-run/uxc) into .agents/skills/github-openapi-skill in your project. Codex loads it when a task matches its description.

Can I use GitHub Openapi Skill in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add holon-run/uxc --skill github-openapi-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/github-openapi-skill, .gemini/skills/github-openapi-skill, .github/skills/github-openapi-skill and .opencode/skills/github-openapi-skill in your project.

What does GitHub Openapi Skill need to run?

Going by SKILL.md and its folder, GitHub Openapi Skill needs a shell for the scripts in its folder, the command-line tools its instructions call (gh) and credentials named GITHUB_TOKEN. Our summary lists: A Bash shell; A credential in GITHUB_TOKEN.

Does GitHub Openapi Skill access the network?

SKILL.md names 3 domains. In commands or code: api.github.com, raw.githubusercontent.com and docs.github.com; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.

Is GitHub Openapi Skill safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does GitHub Openapi Skill use?

GitHub Openapi Skill is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does GitHub Openapi Skill use?

About 899 tokens (SKILL.md is roughly 3.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 225 tokens, read only when the agent opens those files.

What are the alternatives to GitHub Openapi Skill?

Skills that share tags, products or a category with GitHub Openapi Skill: B24phpsdk Maintainer (bitrix24/b24phpsdk, 102 stars), API Designer (Jeffallan/claude-skills, 12k stars), OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars) and Use Yaak (mountain-loop/yaak, 19k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains GitHub Openapi Skill?

holon-run (a GitHub organization) maintains it in holon-run/uxc, which has 116 GitHub stars. The repository holds 62 skills in this directory. The repository was last updated on September 15, 2026.

Source: holon-run/uxc on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.