Text models
Fable 5.2 prompts with verifiable acceptance criteria
Give the model a clear scope, permitted actions, and reproducible checks.
State a checkable outcome
Describe the starting files, expected output, test command, and the evidence that proves completion.
Set the boundaries
Name the files and tools the task may use. Specify any point where work must stop for a user decision.
Ask for verification separately
Require the changed files, commands run, results, and anything still unverified.
Test prompt
Fix a reproducible import failure. Limit changes to the importer and necessary tests. The original suite and minimal reproduction must pass. Report changed files, commands, and remaining gaps.