# engine/ — DEFERRED (not built in v1)

audience: AI coding agents first.

**STATUS: PLACEHOLDER. Nothing here. Do not import or invoke it.**

This directory is reserved for the absorbed + modularized Rust syntactic scan engine
(declarative regex / ast-grep rules), per design spec §5 + §10. It is **intentionally
empty in v1**: no v1 security detector needs syntactic scanning — v1 catches come from
the LLM bands + the TS oracle + `pnpm audit` + header/config checks (design spec §8).

Build this ONLY after the security domain hits its v1 bar and another domain (or a
security class) is shown by the delete-test-vs-LLM (spec §4) to NEED a deterministic
syntactic detector. Until then, adding Rust here is YAGNI.

See: `docs/specs/2026-06-17-security-gate-design.md` §5 (polyglot-by-bottleneck), §10 (salvage map).