BEYOND BIG O / FIELD NOTES
Practice guides.
Small examples. Careful reasoning. Ideas you can put to work.
QUEUE CORRECTNESS
6 MIN ↗Retry Queue Correctness: Duplicate Work, Retry Boundaries, and Cancellation
Model a bounded FIFO retry queue with attempt-fenced acknowledgements, reserved IDs and explicit cancellation boundaries.
AGENT-ASSISTED PRACTICE
8 MIN ↗Practice With Your Own AI Agent Using Public Exercise Context
Choose an independent or agent-assisted practice goal, then share bounded public exercise context from a local CLI or read-only MCP adapter.
CODE REVIEW
3 MIN ↗Review Code Boundaries by Finding a Cache Expiry Counterexample
Use equality at an expiry boundary to turn a cache requirement into a concrete counterexample and focused regression check.
INDEPENDENT CODING
3 MIN ↗Build Independent Coding Fluency Alongside AI
Use a short attempt, counterexample review and later variation to practice producing code independently alongside AI tools.
INTERVIEW PREPARATION
3 MIN ↗Prepare for Interviews by Confirming Each Round’s Tool Rules
Ask what a specific interview round permits and evaluates before choosing independent or agent-assisted practice.