rdmbair15m5-changelog-20260829-2136-google-stitch-mcp-integration

Connected Google Stitch Model Context Protocol (MCP) server across all agent environments (Claude Desktop, Claude Code, Codex CLI, Antigravity CLI, and Antigravity IDE) and verified end-to-end tool execution against Google Stitch API.

1. Scope

• Primary host: rdmbair15m5
• Fleet synchronized: rdmsm4x, rdmbair13m5, jdmbair13m5, rdmpw3265m, rdmpw3275m
• Cloud Project: rich-mac-telemetry-2026 (GCP service stitch.googleapis.com enabled)

2. Configuration Files Modified

• Claude Code CLI: ~/.claude.json (mcpServers.stitch)
• Claude Desktop App: ~/Library/Application Support/Claude/claude_desktop_config.json (mcpServers.stitch)
• Antigravity CLI / Antigravity IDE / agy: ~/.gemini/config/mcp_config.json (mcpServers.stitch)
• Codex CLI (OpenAI): ~/.codex/config.toml ([mcp_servers.stitch] and [mcp_servers.stitch.env])

3. Server Configuration Details

• Command: npx
• Arguments: ["-y", "stitch-mcp"]
• Environment: GOOGLE_CLOUD_PROJECT="rich-mac-telemetry-2026"
• Authentication: Native Google Cloud ADC / OAuth via gcloud ([email protected])

4. Verification Evidence

1. GCP Service Activation:
   • gcloud services enable stitch.googleapis.com --project=rich-mac-telemetry-2026 completed successfully.
2. MCP Handshake & Tool Discovery:
   • JSON-RPC protocol initialization confirmed against npx -y stitch-mcp.
   • Verified 17 exposed tools:
     • create_project
     • get_project
     • delete_project
     • list_projects
     • list_screens
     • get_screen
     • generate_screen_from_text
     • edit_screens
     • generate_variants
     • upload_design_md
     • create_design_system
     • create_design_system_from_design_md
     • update_design_system
     • list_design_systems
     • apply_design_system
     • fetch_screen_code
     • fetch_screen_image
3. Live Tool Invocation:
   • Executed tools/call for list_projects via MCP stdio transport. Returned active Stitch project data (Luxury Plastic Brand Assets) with exit code 0.
4. Codex Registration:
   • codex mcp list confirms stitch is present and enabled.

5. How to Undo

• To disconnect Google Stitch MCP, remove the "stitch" block from ~/.claude.json, claude_desktop_config.json, ~/.gemini/config/mcp_config.json, and [mcp_servers.stitch] from ~/.codex/config.toml.