github-openapi-skill

A skill for using GitHub's REST API, which is a programmatic way to work with repositories, issues, pull requests, and events.

In plain words
What is it for?
Use it to inspect repositories, issues, pull requests, and events, or to perform supported GitHub API operations after authentication is configured.
Why use it?
It provides a read-first process for GitHub operations and explains how to reuse an authenticated GitHub CLI login through UXC.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/holon-run/uxc/github-openapi-skill
Any agent
npx skills add holon-run/uxc --skill github-openapi-skill
Clone the repo
git clone --depth 1 https://github.com/holon-run/uxc

Made for: Claude Code, Codex.

Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 876 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00047 $0.00876
Opus 5 $0.00023 $0.00438
Sonnet 5 $0.00009 $0.00175
Haiku 4.5 $0.00005 $0.00088

Measured 2d ago against content hash 3cf9a2663374, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

github-openapi-skill 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 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/github-openapi-skill/SKILL.md · 99 lines

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.

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:

uxc auth credential import github --from gh

This creates:

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

Verify the binding:

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:

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

Read the full file on GitHub · 99 lines

Files

What ships with it

3 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.

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. 2d ago First seen · 99 lines · 47 tokens per session scan A 3cf9a2663374

Subscribe to this mod's changes

github-openapi-skill is a skill published in the GitHub repository holon-run/uxc (113 stars, last pushed 24d ago), licensed MIT. It adds 47 tokens to every session and 876 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 2026-08-30.

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