A model changed under your agent. Here's what broke.

You will not hear from us unless something changed. That is the whole product. agentcheck watches the models your agent runs on; when a provider ships a new model or alias it re-runs your checks and emails one forwardable diff. Every night it replays your production traces and groups regressions by cause — prompt, model, tool or flake — and runs an adversarial pack (injection, exfil, EU AI Act Art. 5). No dashboard to watch, no graphs to interpret. Uptime checks, a public badge and status page are free for one target, forever.