google-gemini
Gemini CLI: MCP server integration with Angular MCP fails to meet best practices and behaves inconsistently
What happened?
MCP requests/invocations against an Angular MCP server are inconsistent, and no meaningful pattern can be identified across runs. As a result, best-practice requirements cannot be reliably met.
Hallo! I will create an Angular component that uses Signals for form management. First, I need to inspect the existing Angular project to understand its structure and version. ╭────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ │ ✓ list_projects (angular-cli MCP Server) {} │ │ │ │ ENOENT: no such file or directory, scandir '/home/user/some_system_drive/V:/XYZ' │ ╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
╭────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ │ You are running Gemini CLI in your home directory. It is recommended to run in a project-specific directory. │ ╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
Using: 1 MCP server ╭────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ │ > Type your message or @path/to/file
Steps to reproduce
Configure the Angular MCP server with 'ng mcp' Configure Gemini CLI to connect to the Angular MCP server Write a prompt, e.g., “Create an Angular 21 Form Signals component and use the Angular CLI MCP server.” Observe inconsistent behavior across runs with no clear pattern.
What did you expect to happen?
Expected behavior
Stable and predictable MCP integration: Consistent tool discovery/negotiation. Reliable transport and schema validation. Behavior that allows adherence to best practices.
Client information
Client Information
Run gemini to enter the interactive CLI, then run the /about command.
> /about
About Gemini CLI │
│ │
│ CLI Version 0.20.2 │
│ Git Commit af894e468 │
│ Model auto │
│ Sandbox no sandbox │
│ OS linux │
│ Auth Method OAuth │
│ User Email my-email-here │
│ GCP Project 123
Login information
Google Account
Anything else we need to know?
No response
