Rules execution engine for DeepSeek Harness.
- Parses AGENTS.md, hard-blocks rule-violating tool calls, B/D auditing
- /guard command (status/rules/active/log/unlock/bypass)
- Version-guard for versioned files (pre-write validation)
- Free-zone support (engine skips free-zone sections)
- 6 optimizations: exec-path exclusion, variable-path skip, auth cross-rule sharing, audit keywords, reload hint
- npm: dsh-rule-engine@0.3.0