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diff --git a/docs/server/index.md b/docs/server/index.md new file mode 100644 index 00000000..ae8334e6 --- /dev/null +++ b/docs/server/index.md @@ -0,0 +1,52 @@ +# Gemini CLI Server + +This section delves into the server component of the Gemini CLI (`packages/server`). The server acts as the backend engine, handling communication with the Gemini API, managing tools, and processing requests from the CLI client. + +## Role of the Server + +The server package is a crucial part of the Gemini CLI ecosystem. While the CLI (`packages/cli`) provides the user interface, the server is responsible for: + +- **API Interaction:** Securely communicating with the Google Gemini API, sending user prompts, and receiving model responses. +- **Prompt Engineering:** Constructing effective prompts for the Gemini model, potentially incorporating conversation history, tool definitions, and instructional context from `GEMINI.md` files. +- **Tool Management & Orchestration:** + - Registering available tools (e.g., file system tools, shell command execution). + - Interpreting tool use requests from the Gemini model. + - Executing the requested tools with the provided arguments. + - Returning tool execution results to the Gemini model for further processing. +- **Session and State Management:** Keeping track of the conversation state, including history and any relevant context required for coherent interactions. +- **Configuration:** Managing server-specific configurations, such as API key access, model selection, and tool settings. + +## Key Components and Functionality + +While the exact implementation details are within the `packages/server/src/` directory, key conceptual components include: + +- **API Client (`client.ts`):** A module responsible for making HTTP requests to the Gemini API, handling authentication, and parsing responses. +- **Prompt Management (`prompts.ts`):** Logic for creating and formatting the prompts sent to the Gemini model. This includes integrating user queries, historical context, and tool specifications. +- \*\*Tool Registry and Execution (`tool-registry.ts`, `tools.ts`, individual tool files like `read-file.ts`, `shell.ts`): + - A system for discovering, registering, and describing available tools to the Gemini model. + - Code for executing each tool safely and effectively, often involving interaction with the operating system or external services. +- **Configuration (`config.ts`):** Handles loading and providing access to server-side configurations, including API keys, model choices, and potentially tool-specific settings. +- **Turn Management (`turn.ts`):** Manages the flow of a single conversational turn, from receiving user input to generating a final response, potentially involving multiple tool calls. + +## Interaction with the CLI + +The CLI and Server typically communicate over a local interface (e.g., standard input/output, or a local network connection if designed for broader use, though the current structure suggests a tightly coupled Node.js application). + +1. The CLI captures user input and forwards it to the Server. +2. The Server processes the input, interacts with the Gemini API and tools as needed. +3. The Server sends responses (text, tool calls, errors) back to the CLI. +4. The CLI formats and displays these responses to the user. + +## Security Considerations + +The server plays a vital role in security: + +- **API Key Management:** It handles the `GEMINI_API_KEY` and ensures it is used securely when communicating with the Gemini API. +- **Tool Execution:** When tools interact with the local system (e.g., `execute_bash_command`), the server (and its underlying tool implementations) must do so with appropriate caution, often involving sandboxing mechanisms to prevent unintended side effects. + +## Navigating this Section + +- **[Server Configuration](./configuration.md):** Details on how to configure the server component, including environment variables and specific settings. +- **[Server Tools API](./tools-api.md):** Information on how tools are defined, registered, and used by the server. + +Understanding the server's role and architecture is key to comprehending the full capabilities and operational flow of the Gemini CLI. |