APR 23
8 min
all
all
Strict JSON prompt: the 11 lines that drop parse errors to 0.01%
The 11-line prompt that drops LLM strict-JSON parse errors from 0.4% to under 0.01%. Paired with response_format, tested on GPT-5.3-Codex, Claude Opus 4.7, and Gemini.
—
unrated
read →8 min
APR 23
13 min
intermediate
intermediate
Structured outputs, three years in: the one pattern that survived
Three years of shipping LLM structured outputs in production. The one pattern that survived, the three that did not, and the strict-JSON failure rate I run at today.
9.1
peer score
read →13 min