opencode-github

A GitHub integration that lets OpenCode respond to commands written in GitHub issue and pull-request comments.

In plain words
What is it for?
Investigating issues, implementing features, fixing bugs, and running the work inside a GitHub Actions runner.
Why use it?
It keeps investigation and coding work inside GitHub, with changes made in a separate branch and proposed through a pull request.

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/timmy6942025/opencode-builder-skill/opencode-github
Any agent
npx skills add Timmy6942025/opencode-builder-skill --skill opencode-github
Clone the repo
git clone --depth 1 https://github.com/Timmy6942025/opencode-builder-skill

Made for: Claude Code, Codex.

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,529 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 $0.00000 $0.03529
Opus 5 $0.00000 $0.01765
Sonnet 5 $0.00000 $0.00706
Haiku 4.5 $0.00000 $0.00353

Measured yesterday against content hash ff14b7b72785, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

opencode-github 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.

skills/opencode-github/SKILL.md · 422 lines

How it starts

The opening of the file, as written. The whole thing — 422 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenCode GitHub Integration Skill

📚 Official Docs: For the latest information, always refer to the official documentation: https://opencode.ai/docs/github/

Overview

This skill covers OpenCode's GitHub integration, enabling you to use OpenCode directly within GitHub issues and pull requests. OpenCode integrates with your GitHub workflow — mention /opencode or /oc in your comment, and OpenCode will execute tasks within your GitHub Actions runner.

Features

  • Triage issues: Ask OpenCode to look into an issue and explain it to you.
  • Fix and implement: Ask OpenCode to fix an issue or implement a feature. It will work in a new branch and submit a PR with all the changes.
  • Secure: OpenCode runs inside your GitHub's runners.

Installation

Automated Installation

Run the following command in a project that is in a GitHub repo:

opencode github install

This will walk you through:

  1. Installing the GitHub app
  2. Creating the workflow file
  3. Setting up required secrets

Manual Setup

Step 1: Install the GitHub App

Head over to github.com/apps/opencode-agent. Make sure it's installed on the target repository.

Step 2: Add the Workflow

Add the following workflow file to .github/workflows/opencode.yml in your repo. Make sure to set the appropriate model and required API keys in env.

name: opencode
on:
  issue_comment:
    types: [created]
  pull_request_review_comment:
    types: [created]
jobs:
  opencode:
    if: |
      contains(github.event.comment.body, '/oc') ||
      contains(github.event.comment.body, '/opencode')
    runs-on: ubuntu-latest
    permissions:
      id-token: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 1
          persist-credentials: false

      - name: Run OpenCode
        uses: anomalyco/opencode/github@latest
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
        with:
          model: anthropic/claude-sonnet-4-20250514
          # share: true
          # github_token: xxxx

Read the full file on GitHub · 422 lines

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. yesterday First seen · 422 lines · 0 tokens per session scan A ff14b7b72785

Subscribe to this mod's changes

opencode-github is a skill published in the GitHub repository Timmy6942025/opencode-builder-skill (2 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,529 tokens. 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.

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