Archietect

Archietect is a deterministic engine that maintains a living record of what a project's concepts are, including what exists, what is canonical, who uses it, why it is shaped this way, and how that has changed over time. It operates behind an explicit permission boundary controlling what it is allowed to look at, and includes a registry that knows about every project it has been pointed at on the machine, not just the one open right now. AI agents, editors, CI, and humans all query the same continuously maintained state instead of each reconstructing a partial, inconsistent understanding per session. Archietect does not use AI; AI uses Archietect. It provides evidence-tiered answers ranked as DECLARED, USED, or NAMED, and is read-only against code, flagging problems with evidence and stopping without editing the working tree. It is fully offline and deterministic, with no AI inside, no API key, and no network call. The system supports three transports—CLI, REST, and MCP—all calling the same query functions, and uses Rust, SQLite, regex-based structural/schema extraction, tiny_http for REST, and stdio for MCP. Query latency for read-only commands is approximately 55ms on a 637MB / 30k-file repository, and context efficiency on real repositories is consistently 98–99% discovery payload reduction.