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Working with APIs & Technical Specs
Reading and reviewing technical specs and API contracts well enough to catch problems before they ship.
What it is
Technical PMs are expected to read API contracts and technical design docs critically — not to write the implementation, but to catch scope, sequencing, and edge-case gaps before they become expensive to fix.
Key points
- Reading an API contract: understanding request/response shapes, status codes, and pagination/rate-limit behavior is usually enough to catch integration problems a spec review would otherwise miss.
- Idempotency and error handling in a spec are the details most often glossed over in a first draft — asking "what happens if this request is sent twice?" surfaces real gaps.
- A good technical PM asks precise questions of engineers rather than trying to independently design the technical solution — the goal is informed collaboration, not doing the engineer's job.
- Being able to talk credibly about tradeoffs (latency vs. consistency, build vs. buy) is what separates a technical PM from a general PM on a technical product.