Context Engine and Avouch emerge as tools to prevent agent hallucination and API errors

According to emerging tooling reports, Context Engine prevents AI agents from calling non-existent APIs, while Avouch provides free local code review as an alternative to paid AI review services. Both tools address agent hallucination and workflow inefficiency in agent-assisted development.

Update (2026-08-20): According to GitHub and project announcements, Context Engine launched as a headless IDE built to prevent agents from hallucinating non-existent APIs or re-implementing existing APIs. StuntAPI launched as a local stateless mock API service with 95 adapters for testing agentic workflows. Both tools address the problem of agents gene...