Allow simple extensions for registering MCPservers (#890)

This commit is contained in:
Tommaso Sciortino
2025-06-10 15:48:39 -07:00
committed by GitHub
parent 916cfee08d
commit 4e84431df3
6 changed files with 241 additions and 3 deletions

38
docs/extension.md Normal file
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# Gemini CLI Extensions
Gemini CLI supports extensions that can be used to configure and extend its functionality.
## How it works
On startup, Gemini CLI looks for extensions in two locations:
1. `<workspace>/.gemini/extensions`
2. `<home>/.gemini/extensions`
It will load all extensions from both locations, but if an extension with the same name exists in both, the one in the workspace directory will take precedence.
Each extension is a directory that contains a `gemini-extension.json` file. This file contains the configuration for the extension.
### `gemini-extension.json`
The `gemini-extension.json` file has the following structure:
```json
{
"name": "my-extension",
"version": "1.0.0",
"mcpServers": {
"my-server": {
"command": "node my-server.js"
}
},
"contextFileName": "GEMINI.md"
}
```
- `name`: The name of the extension. This is used to uniquely identify the extension.
- `version`: The version of the extension.
- `mcpServers`: A map of MCP servers to configure. The key is the name of the server, and the value is the server configuration. These servers will be loaded on startup just like mcpServers configured in settings.json. If an extension and settings.json configure a mcp server with the same name, settings.json will take precedence.
- `contextFileName`: The name of the file that contains the context for the extension. This will be used to load the context from the workspace. NOT YET SUPPORTED
When Gemini CLI starts, it will load all the extensions and merge their configurations. If there are any conflicts, the workspace configuration will take precedence.

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- **[CLI Introduction](./cli/index.md):** An overview of the command-line interface.
- **[Commands](./cli/commands.md):** Detailed descriptions of all available CLI commands.
- **[Configuration](./cli/configuration.md):** How to configure the CLI.
- **[Extensions](./extension.md):** How to extend the CLI with new functionality.
- **Core Details:**
- **[Core Introduction](./core/index.md):** An overview of the core component.
- **[Configuration](./core/configuration.md):** How to configure the core.