Six lessons on schedule-safe production patterns plus the synthesis. 80% to pass.
Week 4 takes the same patterns to scale — paginating through hundreds of items, streaming-style read+process, caching reads, chained transformations, multi-tool orchestration with reusable helpers, and a final synthesis that ties together five primitives across four tools.
| Lesson | Concept |
|---|---|
| 16 | Schedule-safety mindset — audit for idempotency, bounded growth, loops, TZ drift, quota cost, recovery |
| 17 | Incremental processing — since last run filter using ts > checkpoint, update checkpoint to max ts |
| 18 | Failure self-alert — try/except around the chain, send-yourself email on unrecoverable error |
| 19 | Configuration — CONFIG = {...} at top of file; logic uses CONFIG["key"] |
| 20 | Pre-flight validation — collect ALL errors first; abort cleanly before any side effect |
| 21 | Synthesis — retry + dedup + partial failure + structured logging on a 3-element generic input |
Week 4 = patterns at scale. Pagination over many pages, streaming-style read+process, caching read responses, chained-result transformations, multi-tool orchestration with reusable helpers, and a final synthesis combining 5 prior primitives across 3+ tools.
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Six lessons on schedule-safe production patterns plus the synthesis. 80% to pass.
Week 4 takes the same patterns to scale — paginating through hundreds of items, streaming-style read+process, caching reads, chained transformations, multi-tool orchestration with reusable helpers, and a final synthesis that ties together five primitives across four tools.
| Lesson | Concept |
|---|---|
| 16 | Schedule-safety mindset — audit for idempotency, bounded growth, loops, TZ drift, quota cost, recovery |
| 17 | Incremental processing — since last run filter using ts > checkpoint, update checkpoint to max ts |
| 18 | Failure self-alert — try/except around the chain, send-yourself email on unrecoverable error |
| 19 | Configuration — CONFIG = {...} at top of file; logic uses CONFIG["key"] |
| 20 | Pre-flight validation — collect ALL errors first; abort cleanly before any side effect |
| 21 | Synthesis — retry + dedup + partial failure + structured logging on a 3-element generic input |
Week 4 = patterns at scale. Pagination over many pages, streaming-style read+process, caching read responses, chained-result transformations, multi-tool orchestration with reusable helpers, and a final synthesis combining 5 prior primitives across 3+ tools.