Code.

Code is the kernel's software-work specialist: repository reading, patch generation, refactoring, test synthesis, sandbox execution, diff review. Runs entirely on-device so the operator's source never leaves the machine. Integrates tightly with Tool Use for git, build, and test invocations, and with Planning for multi-file refactors that need a pre-commit simulation. Distinct from the domain brain JAXON, which handles computer-science theory and algorithm design; Code is the executor.

• 01Repository reading, file editing, multi-file refactors
• 02Test generation and sandbox execution
• 03Diff review against the operator's coding standards
• 04Sandboxed run-and-rollback for risky changes

Authoritative external corpora and standards this brain treats as canonical. Every retrieval against these sources is signed into the audit ledger so a regulator can prove which evidence drove which output.

• 01Mickai Patent 02, 12, 14, 15
• 02Language Server Protocol (LSP) specification
• 03Tree-sitter parser library
• 04LLVM intermediate representation documentation
• 05ESLint, RuboCop, Pylint rule corpora
• 06ACM SIGSOFT papers
• 07SWE-bench evaluation suite
• 08HumanEval and MBPP benchmarks
• 09TypeScript and Python language specifications

Mickai-native tooling primitives this brain implements internally. Codex for sovereign plain-text graph PKM, Lectern for spaced-repetition memory, Stele for citation-provenance, and domain-native primitives layered on top. No external services in the trust path; data stays on operator-personalised hardware.

• 01Compass (code intelligence)
• 02Mast (IDE surface)
• 03Quill (programmable plain-text editor)
• 04Wax-Seal (commit-signing infrastructure)
• 05Loom (build and test DAG scheduler)