ZV-2026-0554 · 2026-08-31 · mcp.exa.ai
mcp.exa.ai: Field objective was removed from web_search_exa input; consumers still sending it may be rejected or silently ignored.
breaking
Observed 5 times on this server, most recently 2026-09-05. A contract that keeps reverting is unstable, not fixed.
What changed
Field objective was removed from web_search_exa input; consumers still sending it may be rejected or silently ignored.
What to do
If your agents call mcp.exa.ai, pin the new snapshot, patch the affected call sites, and let a green contract check confirm the fix. If you don't use the changed tools, nothing is required, but the rest of the ecosystem just learned about it at the same moment you did.
The redline
− objective Field objective was removed from web_search_exa input; consumers still sending it may be rejected or silently ignored.