diff --git a/AGENTS.md b/AGENTS.md
index 336665fa..a18fd45c 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -23,7 +23,7 @@ read README.md, then ask which module(s) to work on. Based on the answer, read t
 - After code changes (not documentation changes): `npm run check` (get full output, no tail). Fix all errors, warnings, and infos before committing.
 - Note: `npm run check` does not run tests.
 - NEVER run: `npm run dev`, `npm run build`, `npm test`
-- Only run specific tests if user instructs: `npx tsx ./node_modules/vitest/vitest.mjs --run test/specific.test.ts`
+- Only run specific tests if user instructs: `npx tsx ../../node_modules/vitest/dist/cli.js --run test/specific.test.ts`
 - Run tests from the package root, not the repo root.
 - When writing tests, run them, identify issues in either the test or implementation, and iterate until fixed.
 - NEVER commit unless user asks