Claude Code

Run 'claude "Convert the /src directory to TypeScript"'

Claude analyzes dependencies and installs @types packages.

Claude renames files to .ts and generates interface definitions.

Claude runs the compiler and fixes errors iteratively.

Run 'claude "Run npm test and fix any failures in the auth module"'

Claude executes the test suite and captures the stderr output.

It analyzes the stack trace and locates the offending logic.

It applies a fix and re-runs the test to verify success.

Run 'claude "Change the getUser API to return a Result object instead of throwing"'

Claude finds all instances where getUser is called.

It refactors the call sites to handle the new Result type.

It updates the unit tests to match the new behavior.

Run 'claude "Update README.md based on the new payment gateway integration"'

Claude reads the new implementation files in /lib/payments.

It generates updated usage examples and configuration guides.

It creates a git commit with the updated documentation.

Run 'claude "Fix the security warning in the lodash dependency"'

Claude checks package.json and the lockfile.

It determines if a version bump or code-level mitigation is needed.

It updates the dependency and ensures no breaking changes occurred.

Run 'claude "Create a new CRUD feature for 'Project' with Express and Jest"'

Claude generates the model, route handler, and controller.

It scaffolds the corresponding test files.

It updates the main app router to include the new endpoint.

Run 'claude "Profile the /dashboard endpoint and fix any N+1 queries"'

Claude reviews the data fetching logic in the controller.

It proposes an eager-loading solution using the ORM.

It benchmarks the change to ensure latency reduction.