"CHATGPT_API_KEY" #13

	# Detects duplicate issues using Claude Code with the /dedupe command.
	# Triggered automatically when a new issue is opened, or manually for a single issue.
	name: Issue Duplicate Detection

	on:
	issues:
	types: [opened]
	workflow_dispatch:
	inputs:
	issue_number:
	description: 'Issue number to check for duplicates'
	required: true
	type: string

	permissions:
	contents: read
	issues: write

	concurrency:
	group: dedupe-${{ github.event.issue.number \|\| inputs.issue_number }}
	cancel-in-progress: true

	jobs:
	detect-duplicate:
	runs-on: ubuntu-latest
	timeout-minutes: 10
	# Skip pull-requests that surface as issues and bot-opened issues
	if: >
	(github.event_name == 'workflow_dispatch') \|\|
	(github.event.issue.pull_request == null &&
	!endsWith(github.actor, '[bot]') &&
	github.actor != 'github-actions')
	steps:
	- uses: actions/checkout@v4

	- name: Determine issue number
	id: issue
	env:
	EVENT_NAME: ${{ github.event_name }}
	INPUT_NUMBER: ${{ inputs.issue_number }}
	ISSUE_NUMBER: ${{ github.event.issue.number }}
	run: \|
	if [ "$EVENT_NAME" = "workflow_dispatch" ]; then
	echo "number=$INPUT_NUMBER" >> "$GITHUB_OUTPUT"
	else
	echo "number=$ISSUE_NUMBER" >> "$GITHUB_OUTPUT"
	fi

	- uses: anthropics/claude-code-action@v1
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	prompt: "/dedupe ${{ github.repository }}/issues/${{ steps.issue.outputs.number }}"
	anthropic_api_key: ${{ secrets.AUTHROPIC_API_KEY }}
	github_token: ${{ secrets.GITHUB_TOKEN }}
	allowed_bots: "github-actions"
	allowed_non_write_users: "*"

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