Kaimon.jl

Opening the gate between AI and Julia.

Kaimon is an MCP (Model Context Protocol) server that gives AI agents full access to Julia's runtime. Connect Claude Code, Cursor, or any MCP client to a live Julia session with 32+ tools for code execution, introspection, debugging, testing, and semantic code search.

Key Features

• Live Code Execution — evaluate Julia code in persistent REPL sessions with full state, package access, and streaming output
• Deep Introspection — inspect types, methods, lowered IR, type-inferred code, and macro expansions directly from the agent
• The Gate — connect external Julia processes and register custom tools via ZMQ. Your app's domain logic becomes agent-callable with automatic schema generation
• VS Code Debugging — set breakpoints, step through code, watch variables, all driven by the AI agent
• Semantic Code Search — index projects into Qdrant and search with natural language queries like "function that handles HTTP routing"
• Terminal Dashboard — real-time TUI monitoring sessions, tool calls, test runs, and search results across all connected REPLs
• Security — three modes (strict/relaxed/lax), API key management, IP allowlists
• Testing & Profiling — run tests with pattern filtering and coverage, profile code, stress-test with concurrent simulated agents

Quick Start

git clone https://github.com/kahliburke/Kaimon.jl
cd Kaimon.jl
./bin/kaimon

The first run opens a setup wizard (security mode, API key, port). After that, the terminal dashboard launches:

From the dashboard:

• Press i in the Config tab to write MCP config for Claude Code, Cursor, VS Code, or Gemini CLI
• Press g to add a Gate snippet to ~/.julia/config/startup.jl so every Julia session auto-connects
• Or connect manually from any REPL: using Kaimon; Gate.serve()

Tool Categories

Category	Tools	Description
Code Execution	ex, manage_repl	Evaluate code, restart/shutdown sessions
Introspection	investigate_environment, search_methods, type_info, list_names, workspace_symbols, document_symbols, macro_expand	Explore types, methods, and symbols
Code Analysis	code_lowered, code_typed, format_code, lint_package	IR inspection, formatting, linting
Navigation	goto_definition, navigate_to_file	Jump to definitions and source locations
VS Code	execute_vscode_command, list_vscode_commands	VS Code command execution
Debugging	start_debug_session, debug_step_*, debug_continue, debug_stop, add_watch_expression, copy_debug_value, open_file_and_set_breakpoint	Full debugging workflow
Packages	pkg_add, pkg_rm	Add/remove packages
Testing	run_tests, profile_code, stress_test	Test execution, profiling, load testing
Search	qdrant_search_code, qdrant_index_project, qdrant_sync_index, qdrant_list_collections, qdrant_collection_info, qdrant_browse_collection, qdrant_reindex_file	Semantic code search
Info	ping, usage_instructions, usage_quiz, tool_help	Server status and documentation

The Gate

Connect any Julia process and expose domain-specific tools to AI agents:

using Kaimon.Gate: GateTool, serve

function analyze_data(path::String, threshold::Float64=0.95)
    data = load(path)
    filter(x -> x.score > threshold, data)
end

# Kaimon auto-generates the MCP schema from the function signature
serve(tools=[GateTool(analyze_data)])

The connected REPL appears as a session in Kaimon's TUI. The agent can call analyze_data alongside all built-in tools, with full argument validation and type checking.

Documentation

Full documentation: kahliburke.github.io/Kaimon.jl

Requirements

• Julia 1.12+
• Any MCP-compatible client (Claude Code, Cursor, VS Code with MCP extension)
• Optional: Qdrant for semantic code search
• Optional: VS Code Remote Control extension for debugging

Contributing

Contributions are welcome. Please open an issue to discuss changes before submitting a pull request.

License

MIT

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Kaimon (開門) — "opening the gate." The gate between AI agents and the Julia ecosystem.