
Requirements first
Describe the function in terms of user inputs, outputs, and error behavior. Check whether existing tools can meet the need before building a custom component. Agree how new requests will affect cost and timing.
Document authentication, data formats, rate limits, and recovery from failed requests. Test the connection with representative records. Leave the team with a decision, an owner, and a review date.
- A written brief
- Named responsibilities
- Agreed review points




