The agent tool-RAG force-includes a keyword hint's tools whenever any of its
keywords appears in the query (word-boundary match). The email-intent hint listed
"tell", which matches a huge fraction of requests — e.g. "visit <url> and tell
me the title" — so the whole email toolset was force-included and crowded out the
relevant tools. The model then saw a prompt dominated by email tools and reported
it had no web search / could not visit the URL.
Remove "tell" from the email keyword set. Genuine email intent still fires on
email/mail/gmail/inbox/unread/message/send/reply.
Test drives get_tools_for_query directly with retrieval stubbed (the keyword
hints are deterministic, no embeddings needed): a "...tell me..." web query no
longer pulls in email tools, a real email request still does.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
