Your AI writes the code; Karajan governs how it happens: TDD-first method, cross-AI review on every commit and git gates that make a false green impossible. Works with Claude, Codex, Gemini, OpenCode and Aider, on the subscriptions you already pay for. MCP server included.
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Your AI agent (Claude Code, Codex, Copilot, Antigravity, Cursor…) writes the code. Karajan governs how it happens: it installs a method your agent follows on every task, and enforces it with git gates that make a false green structurally impossible.
kj rag query answers what your codebase does; no agent guesses. The install wires it as a native MCP tool (kj_rag_query) so querying the index is the agent's cheapest path. Works out of the box: local Ollama, or the built-in ONNX embedder when nothing can be installed; cloud embedders require an explicit sensitivity declaration and PII-redact every chunk. A distilled engineering canon rides along: kj rag query --library serves pattern cards (when it applies, when i