# This was copied from https://github.com/sst/opencode/blob/d7a9f343c53d481802c134ce25691a8c150d59d2/.github/workflows/duplicate-issues.yml

# MIT License

# Copyright (c) 2025 opencode

name: Duplicate Issue Detection

on:

issues:

types: [opened]

jobs:

check-duplicates:

environment: ai-bots

runs-on: ubuntu-latest

permissions:

contents: read

issues: write

steps:

- name: Checkout repository

uses: actions/checkout@v4

with:

fetch-depth: 1

- name: Install opencode

run: curl -fsSL https://opencode.ai/install | bash

- name: Check for duplicate issues

env:

ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}

GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

OPENCODE_PERMISSION: |

{

"bash": {

"gh issue*": "allow",

"*": "deny"

},

"webfetch": "deny"

}

run: |

opencode run -m anthropic/claude-sonnet-4-20250514 "A new issue has been created:'

Issue number:

${{ github.event.issue.number }}

Thoroughly lookup this issue and search through all existing issues (excluding #${{ github.event.issue.number }}) in this repository to find any potential duplicates of this new issue. Carefully consider all related issues and search using relevant keywords to ensure a comprehensive search.

Consider:

1. Similar titles or descriptions

2. Same error messages or symptoms

3. Related functionality or components

4. Similar feature requests

For each potential duplicate you find, assign a confidence rating (high, medium, or low) indicating how likely it is to be a match.

If you find any potential duplicates, please comment on the new issue with:

- A brief explanation of why it might be a duplicate

- Links to the potentially duplicate issues

- A confidence assessment (high/medium/low) for each

- A suggestion to check those issues first

Use this format for the comment:

'This issue might be a duplicate of existing issues. Please check:

- #[issue_number]: [brief description of similarity] (confidence: [high/medium/low])

Feel free to ignore if none of these address your specific case.'

Examples:

- #123: Contains identical error message and affects same component (confidence: high)

- #124: Similar feature request but slightly different use case (confidence: medium)

- #125: Mentions a related symptom, but context is unclear (confidence: low)

If no clear duplicates are found, do not comment."