October 2026
You Turned Off Thinking and Your Agent Stopped Calling Tools
Moving a step to a cheaper, faster model usually means turning the thinking knob down.Your Long MCP Tool Call Dies at the Client Timeout
A tool that takes four minutes to run cannot answer inside a client request that gives up after sixty seconds.
August 2026
Your Tool Returned 40,000 Tokens. The Agent Needed 12.
A single tool call can dump a whole file, a full API response, or a thousand log lines straight into the context window.Your Agent Calls One Tool, Waits, Then Calls the Next
When an agent needs three lookups that do not depend on each other, running them one at a time makes the user wait for the sum of all three.
July 2026
Your Agent Will Do Whatever the Web Page Tells It To
The moment your agent reads untrusted content and can also call tools, a hidden instruction in a web page or email can hijack it.Your Agent Keeps Retrying a Tool Call That Will Never Work
Most agent failures in production are not bad reasoning, they are bad tool calls: wrong arguments, expired tokens, timeouts.Your Agent Reads 150,000 Tokens Before It Sees the Request
Connect a dozen MCP servers to an agent and you pay for every tool definition on every turn, before the user has said a word.