Submodule: function-calling API, json-alist-to-plist converter, tool-calls wiring in think(), diagnostics fix, version bump to 0.4.2. AGENTS.md: validate with emacs check-parens on org source (not SBCL).
Submodule: 25 files changed — system-prompt-augment removal, 10 cognitive tools, vector count 9-10, README rewrite, ROADMAP updates, CONTRIBUTING rewrite, tangle normalization. AGENTS.md: rewritten compact (180-50 lines).