Telling Claude you want to do a "deep dive" should classify your request as a "complex query", which involves at least 5 and maybe up to 20 calls to the search tool
https://cdn.masto.host/fedisimonwi...
The search tool system prompt spends a LOT of tokens begging the model not to regurgitate long chunks of copyrighted content that it gets back from its web_search and web_fetch tools https://simonwillison.net/2025/May/25/claude-4-system-prompt/#seriously-don-t-regurgitate-copyrighted-content
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