CodeBrain

What it does

CodeBrain acts as a high-performance cognitive layer for AI agents working with code. It connects LLMs to a codebase using the Language Server Protocol (LSP), allowing agents to understand project structures, symbols, and dependencies with precision far beyond simple text search.

Tools

• validate: Provides compiler-grade diagnostics to catch type errors and missing imports instantly.
• outline: Maps the file hierarchy and symbol tree of a codebase.
• search: Performs structural search by syntactic role instead of string matching.
• explore_symbol: Surfaces callers and usages to understand impact before refactoring.
• check_impact: Analyzes downstream breakage caused by potential code changes.
• debug_trace: Enriches stack traces with code intelligence to accelerate root cause analysis.
• rename_symbol: Safely renames symbols across a project.
• list_subprojects: Automatically discovers sub-project boundaries in monorepos.
• check_health: Reports the current capability and degradation state of the server.

Installation

Install the package via pip:

pip install "codebrain[all] @ git+https://github.com/feelingai-team/CodeBrain.git"

Configure in claude_desktop_config.json:

{
  "mcpServers": {
    "codebrain": {
      "command": "codebrain-mcp",
      "args": []
    }
  }
}

Supported hosts

• claude
• opencode