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Dev Journal

A session-by-session chronicle of building a JWST data analysis platform — from first commit to production features.

Browse by date or filter by category to see what happened each day.

April 23: Empty State During Loading

Single-PR day with a UX polish — the target detail page was flashing the "no recipes" empty state for a split second while recipes were still loading, which looked broken. Also spent time on UX docs for the app (unrelated to PRs, doc work only).

April 14: Hardening Spree

Thirteen-PR security and correctness blitz — auth rate limiting, account lockout, user enumeration prevention, data enumeration prevention across analysis and composite endpoints, NaN and empty-input guards across the processing pipeline, and a handful of race-condition and validation bugs.

April 9: Killing the Composite God Function

Finally cracked open the composite route and split it into focused pipeline stages. Also gated window.jwst debug globals behind dev-only builds, replaced hand-rolled caches with TTLCache, bounded polling retries, and surfaced the errors that frontend components were quietly swallowing.