Update sweep.yaml

sweep.yaml

@@ -7,5 +7,17 @@ branch: "main"
 gha_enabled: False
 # This is the description of your project. It will be used by sweep when creating PRs. You can tell Sweep what's unique about your project, what frameworks you use, or anything else you want.
 # Here's an example: sweepai/sweep is a python project. The main api endpoints are in sweepai/api.py. Write code that adheres to PEP8.
-description: ""
+description: "LlamaIndexTS is a data framework in TypeScript for your LLM applications"
+
+sandbox:
+  install:
+    - npm install -g pnpm
+    - pnpm i
+    - pnpm add --save-dev prettier -w
+  check:
+    - pnpx prettier --write {file_path}
+    - pnpm eslint --fix {file_path}
+    - pnpx ts-node --type-check {file_path}
+    - pnpm test
+
 # Default Values: https://github.com/sweepai/sweep/blob/main/sweep.yaml