← Changelog
fixed
Agent write previews are bound to the tool, store and key, and expire after 15 minutes
When an AI agent previews a write through the MCP server, the preview digest
it must echo back is now tied to that tool, your store, your API key and the
moment it was issued. A digest cannot be replayed by another key or on
another tool, and it stops working after 15 minutes. The developer docs now
name the real refusal code, preview_mismatch.
This note records shipped behavior as of . Planned work remains on the public roadmap until release.