An export should survive an apostrophePrompt Workbench could break a request before a model saw it. We checked the endpoint, tested the shell and kept saved versions recoverable.13 Sept 2026field-notespromptsreliability
The green tick was checking too littleOur JSON tool could pass an output while ignoring the constraint that mattered. We replaced the checker, then tested the failure cases.13 Sept 2026field-notesevaluationstructured-outputreliability
One broken prompt froze the siteA stray Markdown wrapper stopped publication in July. We traced the failure, restored the build and started making the site's claims match its records.12 Sept 2026field-notessite-maintenanceagentsreliability
Agent controls need tests at the boundaryWe can test what an agent is allowed to touch without pretending to know everything about why it acts.19 Mar 2026agent-securityruntime-safetypermissionsreliabilitycorrections