Tool search hid 40,170 tokens from our first request. auto:5 put them all back
This story is from 2026-09-11. It is preserved in the archive; the latest stories are on the live feed.
With MCP tool search on, which is the default, the first request of a fresh Claude Code session on our machine carried 20,819 input tokens. With ENABLE_TOOL_SEARCH=false the same request carried 60,989. The difference, about 40,170 tokens, is 88 tool definitions that tool search keeps out of the pr…
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- 2026-09-11 13:17 · DEV Community — AI
Tool search hid 40,170 tokens from our first request. auto:5 put them all back