openAgent

1name: "opencode GitHub Action"
2description: "Run opencode in GitHub Actions workflows"
3branding:
4  icon: "code"
5  color: "orange"
6 
7inputs:
8  model:
9    description: "Model to use"
10    required: true
11 
12  agent:
13    description: "Agent to use. Must be a primary agent. Falls back to default_agent from config or 'build' if not found."
14    required: false
15 
16  share:
17    description: "Share the opencode session (defaults to true for public repos)"
18    required: false
19 
20  prompt:
21    description: "Custom prompt to override the default prompt"
22    required: false
23 
24  use_github_token:
25    description: "Use GITHUB_TOKEN directly instead of OpenCode App token exchange. When true, skips OIDC and uses the GITHUB_TOKEN env var."
26    required: false
27    default: "false"
28 
29  mentions:
30    description: "Comma-separated list of trigger phrases (case-insensitive). Defaults to '/opencode,/oc'"
31    required: false
32 
33  variant:
34    description: "Model variant for provider-specific reasoning effort (e.g., high, max, minimal)"
35    required: false
36 
37  oidc_base_url:
38    description: "Base URL for OIDC token exchange API. Only required when running a custom GitHub App install. Defaults to https://api.opencode.ai"
39    required: false
40 
41runs:
42  using: "composite"
43  steps:
44    - name: Get opencode version
45      id: version
46      shell: bash
47      run: |
48        VERSION=$(curl -sf https://api.github.com/repos/anomalyco/opencode/releases/latest | grep -o '"tag_name": *"[^"]*"' | cut -d'"' -f4)
49        echo "version=${VERSION:-latest}" >> $GITHUB_OUTPUT
50 
51    - name: Cache opencode
52      id: cache
53      uses: actions/cache@v4
54      with:
55        path: ~/.opencode/bin
56        key: opencode-${{ runner.os }}-${{ runner.arch }}-${{ steps.version.outputs.version }}
57 
58    - name: Install opencode
59      if: steps.cache.outputs.cache-hit != 'true'
60      shell: bash
61      run: curl -fsSL https://opencode.ai/install | bash
62 
63    - name: Add opencode to PATH
64      shell: bash
65      run: echo "$HOME/.opencode/bin" >> $GITHUB_PATH
66 
67    - name: Run opencode
68      shell: bash
69      id: run_opencode
70      run: opencode github run
71      env:
72        MODEL: ${{ inputs.model }}
73        AGENT: ${{ inputs.agent }}
74        SHARE: ${{ inputs.share }}
75        PROMPT: ${{ inputs.prompt }}
76        USE_GITHUB_TOKEN: ${{ inputs.use_github_token }}
77        MENTIONS: ${{ inputs.mentions }}
78        VARIANT: ${{ inputs.variant }}
79        OIDC_BASE_URL: ${{ inputs.oidc_base_url }}
80