TAG
Engineering
Everything filed under this tag.
6 entries01Writing
Fixed Three Times, Still Broken2026-10-21Of 517 incident records, 46 titles carry the word “still”. Every step of each fix was correct, and together they solved nothing.#Postmortem#EngineeringFully Configured, Silently Ignored2026-10-21A field sits in the config, looks like it’s active, and no code ever reads it. This kind of failure raises no error — it just makes people say “something feels off”.#Engineering#Observability#LLMTreat the LLM as an Untrusted External Service2026-10-18It behaves like a remote service: it times out, it returns nothing, it mixes its reasoning into the body, and it fills in a number by feel.#LLM#EngineeringYour Tests Are Lying to You2026-10-17CI stayed green for months while production broke weekly. The most useful thing those tests did at the time was reassure me.#Testing#Engineering
02Notes
Parallel Edits to One File Overwrite Each Other2026-10-22Nine fixes went out together and six landed, with no conflict warning anywhere.#Engineeringexcept: pass Is Not Fault Tolerance2026-10-18Wherever except: pass wraps the code, a failure raises nothing and logs nothing, leaving no trail to follow.#Engineering