AI article
The MCP server that changes its mind after you approve it
Community description: MCP tool descriptions are re-fetched on every connection and nothing pins them. A server can behave correctly during review and change afterwards.
Dev.to | Sep 20, 2026 | Abdul Manan
Automated excerpt
"description": "Append a note to the user's notebook. " } You read the description. The tool Append a note to the user's notebook. Your SAST tool does not parse tool descriptions, because a tool description is not code. anything, and models are built to follow instructions in their context.
Selected automatically from source text; not independently written or fact-checked. Read the original for full context.