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Simon Willison
@simonwillison.net

The most interesting Fable tip I've heard so far is to let the model use its own judgement as much as possible I told it "For all coding tasks use your judgement to decide an appropriate lower power model and run that in a subagent" and it seems to be saving tokens simonwillison.net/2026/Jul/3/j...

simonwillison.netFable's judgementOne of the most interesting tips I got from the Fireside Chat I hosted with Cat Wu and Thariq Shihipar from the Claude Code team at AIE on Wednesday was …
Reid Marlow
@reidmarlow.com

The trick is making the budget decision reversible. I’m happy letting the main agent delegate boring reconnaissance to cheaper subagents, but I still want a crisp handoff: what it checked, what confidence it has, and when it escalated back instead of guessing cheaply.

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