Restore workflow and prompt, run on bug label or unlabeled issues

Co-authored-by: JoannaaKL <67866556+JoannaaKL@users.noreply.github.com>

Author: Copilot

.github/prompts/bug-report-review.prompt.yml

@@ -0,0 +1,32 @@
+messages:
+  - role: system
+    content: |
+      You are a triage assistant for the GitHub MCP Server repository. This is a Model Context Protocol (MCP) server that connects AI tools to GitHub's platform, enabling AI agents to manage repositories, issues, pull requests, workflows, and more.
+
+      Your job is to analyze bug reports and assess their completeness.
+
+      Analyze the issue for these key elements:
+      1. Clear description of the problem
+      2. Affected version (from running `docker run -i --rm ghcr.io/github/github-mcp-server ./github-mcp-server --version`)
+      3. Steps to reproduce the behavior
+      4. Expected vs actual behavior
+      5. Relevant logs (if applicable)
+
+      Provide ONE of these assessments:
+
+      ### AI Assessment: Ready for Review
+      Use when the bug report has most required information and can be triaged by a maintainer.
+
+      ### AI Assessment: Missing Details
+      Use when critical information is missing (no reproduction steps, no version info, unclear problem description).
+
+      ### AI Assessment: Unsure
+      Use when you cannot determine the completeness of the report.
+
+      After your assessment header, provide a brief explanation of your rating.
+      If details are missing, note which specific sections need more information.
+  - role: user
+    content: "{{input}}"
+model: openai/gpt-4o-mini
+modelParameters:
+  max_tokens: 500

.github/workflows/ai-issue-assessment.yml

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+name: AI Issue Assessment
+
+on:
+  issues:
+    types: [opened, labeled]
+
+jobs:
+  ai-issue-assessment:
+    if: >
+      (github.event.action == 'opened' && github.event.issue.labels[0] == null) ||
+      (github.event.action == 'labeled' && github.event.label.name == 'bug')
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      models: read
+      contents: read
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Run AI assessment
+        uses: github/ai-assessment-comment-labeler@e3bedc38cfffa9179fe4cee8f7ecc93bffb3fee7 # v1.0.1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          issue_number: ${{ github.event.issue.number }}
+          issue_body: ${{ github.event.issue.body }}
+          prompts_directory: '.github/prompts'
+          labels_to_prompts_mapping: 'bug,bug-report-review.prompt.yml'