Tip: Add 'use context7' to Your Prompt to Inject Current Library Docs and Kill Stale-API Hallucinations

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When an agent keeps generating code against an API signature that changed, wire up the Context7 MCP server and append a directive like 'use context7' so the agent pulls version-specific docs before writing. This converts a class of silent hallucination bugs (deprecated methods, renamed params) into correct first-pass code. It's especially valuable for fast-moving SDKs where the model's training cutoff lags the current release.