diff --git a/.husky/pre-commit b/.husky/pre-commit
index 86bc6aa..00dc58d 100755
--- a/.husky/pre-commit
+++ b/.husky/pre-commit
@@ -11,7 +11,10 @@ echo "▎ pre-commit: lint"
 pnpm lint
 
 echo "▎ pre-commit: typecheck"
-pnpm -r typecheck
+# Root `tsc -b` builds the whole workspace graph once in dependency order
+# (core's .d.ts before its consumers), rather than `pnpm -r typecheck` running
+# each package's build independently. Same result, fewer redundant compiles.
+pnpm typecheck
 
 echo "▎ pre-commit: tests"
 pnpm -r test
diff --git a/eslint.config.js b/eslint.config.js
index abf5eef..7069520 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -15,6 +15,7 @@ export default [
       '**/node_modules/**',
       '**/target/**', // Rust/Cargo build output (generated JS in src-tauri/target)
       '**/.tsbuildinfo',
+      '.claude/**', // sibling agent worktrees — not part of this checkout's lint surface
       'release-artifacts/**',
       'apps/desktop/electron/**', // requires electron types — pending M6-rest
     ],