Add Serena as built-in MCP tool for listing and inspection

[Copilot]

The gh aw mcp list-tools serena command was not recognizing Serena as an MCP server, despite 16+ workflows using it. Serena was configured in workflows but excluded from the built-in MCP tool detection logic.

Changes

• pkg/parser/mcp.go: Added Serena to processBuiltinMCPTool() alongside GitHub and Playwright

  • Configures as stdio MCP server using uvx command
  • Default args: uvx --from git+https://github.com/oraios/serena serena start-mcp-server --context codex --project ${GITHUB_WORKSPACE}
  • Allows all tools (*) by default unless explicitly restricted

• pkg/cli/mcp_list_tools.go: Added "serena" to commonMCPServerNames for shell completion

Result

$ gh aw mcp list-tools serena
Found MCP server 'serena' in 16 workflow(s): archie, cloclo, daily-file-diet...

$ gh aw mcp list glossary-maintainer
MCP servers in glossary-maintainer.md
┌───────────┬──────┐
│Name       │Type  │
├───────────┼──────┤
│safeoutputs│stdio │
│serena     │stdio │  # Now detected
│github     │docker│
└───────────┴──────┘

Serena now appears in mcp list, mcp list-tools, mcp inspect, and shell completion alongside other built-in MCP servers.

Original prompt

Liste serena tools

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[pelikhan]

@copilot there should already be support for Serena, double check