Cog introduces Code Mode for Local MCP Server — experimental TypeScript code execution
Action Required
Developers can now utilize language models to generate and execute code, potentially increasing developer productivity and enabling new use cases for Cog models.
AI Impact Summary
Cog is introducing Code Mode, an experimental feature allowing language models to write and execute TypeScript code in a sandboxed environment. This leverages a new Go-based runtime to address issues with the previous Python-based runtime, including dependency conflicts, ambiguous input types, and performance bottlenecks. Users should be aware of the updated semantics for optional inputs and the removal of the deprecated File API, and ensure their models are compatible with the new runtime.
Affected Systems
- Date
- 15 Nov 2025
- Change type
- capability
- Severity
- high