The body is dense with executable commands and reference tables and explains no concepts Claude already knows; every section (commands, pattern syntax, node kinds, escaping) earns its tokens, matching the lean-and-efficient anchor.

Every example is a complete, copy-paste-ready command (e.g. `mise exec -- ast-grep run -p '$X.unwrap()' -l rust .`) plus concrete YAML rules, matching the fully-executable anchor.

The destructive rewrite workflow is sequenced with an explicit checkpoint — "always preview first, then apply with -U" — providing the validate-then-apply feedback loop the rubric requires for batch operations.

A single self-contained file with clearly organized sections (Commands, Pattern syntax, YAML rule structure, Key Rust node kinds, Shell escaping) and no nested references, matching the well-organized-sections anchor for reference-free skills.

Lists multiple concrete actions — "AST-based code search and rewrite", "structural matching", "multi-file batch rewrites", and "context-aware queries" — matching the score-3 anchor of several specific concrete actions.

Explicitly states what it does (AST-based search/rewrite) and when to use it ("Use instead of Grep/Edit when a change spans many sites or must respect code structure"), satisfying the both what-AND-when-with-explicit-triggers anchor.

Covers natural terms a user would say ("code search", "rewrite", "multi-file batch rewrites", "rename") with good variation, matching the score-3 anchor for coverage of natural terms.

Carves a clear niche and explicitly disambiguates from peers ("Not for a single-file or single-symbol rename — use Edit for that"), matching the clear-niche-low-conflict anchor.