A coding agent (Claude Code, OpenCode, any MCP-stdio host) works over a governed graph of the project's model — requirements, tests, modules, traces — instead of guessing structure with grep. Code stays as text in the repo; the model lives in the graph, behind one Apply-Gate that rule-checks and logs every write, human or AI.

This is the first commit of the public history. The package has been on npm since 0.1.0; development happened in a private repository whose commit history carries internal change-request and review records that are not meant to be published, so the public repository starts fresh here rather than by rewriting 207 commits. Nothing about the code is new: the state of this tree is exactly what @sigloch/graphcode@0.5.0 was published from, tests and all.

Start with README.md for what it is and how to install it, docs/articles/ for the plain-language introduction, docs/adr/ADR-001 for the founding constraints, and docs/spikes/ for the measurements the articles cite.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>