diff --git a/skills/reflect/references/synthesizer.md b/skills/reflect/references/synthesizer.md
index f8b355c..1a090d8 100644
--- a/skills/reflect/references/synthesizer.md
+++ b/skills/reflect/references/synthesizer.md
@@ -31,7 +31,7 @@ Keep (durable patterns):
 - "closed regex enums for trigger detection are brittle. Prefer schema-validated structures"
 - "skill descriptions front-load trigger keywords (60/40 trigger-vs-action)"
 - "skill-bundled scripts run under bun with own lockfile, not pnpm workspace"
-- "file-type triggers belong in the skill description. Grok Build does not read a skill paths field"
+- "path-shaped triggers belong in `paths:`, not description prose"
 
 Output exactly the format below. No preamble, no narration. One sentence per cell. A reviewer should read each Problem/Proposal pair in 5 seconds.
 
diff --git a/skills/typescript-best-practices/SKILL.md b/skills/typescript-best-practices/SKILL.md
index 30f1051..e1e5aa7 100644
--- a/skills/typescript-best-practices/SKILL.md
+++ b/skills/typescript-best-practices/SKILL.md
@@ -1,6 +1,8 @@
 ---
 name: typescript-best-practices
 description: TypeScript best practices. Use when reading or editing any .ts or .tsx file.
+paths: ["**/*.ts", "**/*.tsx"]
+disable-model-invocation: true
 ---
 
 # TypeScript best practices