kai

Overview

Kai sits on top of Git to capture meaningful changes rather than just line diffs. It constructs a queryable semantic model of codebases including functions, dependencies, behavior changes, and test coverage. The MCP server exposes 12 tools for AI coding assistants to access structured information about code structure, impact analysis, and test coverage.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• kai_status

  Get the current status of Kai and its semantic graph

  Try:What's the current status of Kai?Try:Show me Kai's graph status
• kai_symbols

  Query symbols (functions, methods, classes) in the codebase

  Try:List all functions in this codebaseTry:Find symbols matching 'auth'
• kai_files

  List files in the semantic graph

  Try:Show me all Go files in the projectTry:List files that test authentication
• kai_diff

  Generate semantic diffs showing meaningful changes

  Try:Show semantic changes since last captureTry:What behavioral changes were made?
• kai_impact

  Analyze the impact of code changes

  Try:What would break if I change this function?Try:Show impact of modifying this API
• kai_callers

  Find all functions that call a given symbol

  Try:Who calls this function?Try:Find all references to this method
• kai_callees

  Find all functions called by a given symbol

  Try:What does this function call?Try:Show all dependencies of this method
• kai_context

  Get surrounding context for a specific symbol

  Try:Show context around this functionTry:What's the context for this class?
• kai_dependencies

  List module dependencies for a given symbol

  Try:What does this module depend on?Try:Show imports used by this function
• kai_dependents

  Find code that depends on a given symbol

  Try:What depends on this function?Try:Find dependents of this module
• kai_tests

  Find tests related to a specific symbol

  Try:Show tests for this functionTry:What tests cover this module?
• kai_refresh

  Refresh the semantic graph with latest code changes

  Try:Refresh the semantic graphTry:Update the code graph with recent changes

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Installation

# curl
curl -sSL https://get.kaicontext.com | sh

# Homebrew
brew install kaicontext/kai/kai

claude mcp add kai -- kai mcp serve

claude mcp add kai -- npx -y kai-mcp

FAQ

What languages does Kai support?

Kai supports Go, Rust, TypeScript/JavaScript, Python, Ruby, SQL, PHP, and C# with varying levels of semantic analysis support.

How does Kai integrate with existing CI?

Kai CI runs workflows defined in .kailab/workflows/ with semantic checkout, parallel jobs, and 30-minute default timeouts, testing only impacted code.

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