Documents Rust language, stdlib, and Cargo features stabilized after the
~2025 training cutoff (1.85–1.95, 2024 edition) so agents generate
current syntax instead of relying on a stale mental model.
A skeptical PR review skill that defaults to REJECT. Encodes the
staff-engineer adversarial stance: lead with problems, assume bugs
exist, require severity+location+fix+test per finding, mandate an
execution trace, and end with an explicit verdict.
Includes base-branch detection (gh pr view → upstream → heuristic →
ask) so the review never silently diffs against the wrong base.
