Cannot install Duplicate Code Detector workflow

[mountaindude]

Following instructions on doc site Meet the workflows page.

I have initialized using gh aw... and the first command works:

gh aw add-wizard https://github.com/github/gh-aw/blob/v0.45.5/.github/workflows/code-simplifier.md

The second command fails though:

gh aw add-wizard https://github.com/github/gh-aw/blob/v0.45.5/.github/workflows/duplicate-code-detector.md

Getting a bunch of "Serena"-related errors.

🚀 Welcome to GitHub Agentic Workflows!

This tool will walk you through adding an automated workflow to your repository.

✓ Target repository: <redacted>
✓ Working directory is clean
ℹ Workflow specifies engine: codex

✓ Selected engine: copilot
✓ Using existing COPILOT_GITHUB_TOKEN secret in repository

The following workflow files will be added:
  • .github/workflows/duplicate-code-detector.md
  • .github/workflows/duplicate-code-detector.lock.yml

ℹ This workflow runs on a schedule.
✓ Schedule updated to: monthly


⚠ Built-in support for Serena has been removed. Import shared/mcp/serena.md instead:
  imports:
    - uses: shared/mcp/serena.md
      with:
        languages: ["go", "typescript"]
⚠ Built-in support for Serena has been removed. Import shared/mcp/serena.md instead:
  imports:
    - uses: shared/mcp/serena.md
      with:
        languages: ["go", "typescript"]
⚠ Command line --engine copilot overrides markdown file engine: codex
⚠ Built-in support for Serena has been removed. Import shared/mcp/serena.md instead:
  imports:
    - uses: shared/mcp/serena.md
      with:
        languages: ["go", "typescript"]
✗ .github/workflows/duplicate-code-detector.md:1:1: error: tools.serena: unknown tool name. The 'tools' section only accepts built-in tool names.

Valid built-in tools: agentic-workflows, bash, cache-memory, cli-proxy, comment-memory, edit, github, playwright, repo-memory, safety-prompt, startup-timeout, timeout, web-fetch, web-search.

If 'serena' is a custom MCP server, define it under 'mcp-servers' instead:
mcp-servers:
  serena:
    command: "node server.js"
    args: ["--port", "3000"]

See: https://github.com/github/gh-aw/blob/main/docs/src/content/docs/reference/tools.md

  tools.serena: unknown tool name. The 'tools' section only accepts built-in tool names.
  Valid built-in tools: agentic-workflows, bash, cache-memory, cli-proxy, comment-memory, edit, github, playwright, repo-memory, safety-prompt, startup-timeout, timeout, web-fetch, web-search.
  If 'serena' is a custom MCP server, define it under 'mcp-servers' instead:
  mcp-servers:
    serena:
      command: "node server.js"
      args: ["--port", "3000"]
  See: https://github.com/github/gh-aw/blob/main/docs/src/content/docs/reference/tools.md
✗ failed to add workflow
  failed to stage workflow files
  failed to stage files
  exit status 128

[pelikhan]

@copilot update blog posts to point to githubnext/agentics instead