Voices
Jesse Vincent's One-Line Prompt That Cuts Your Fable Bill: 'For All Coding Tasks Use Your Judgement to Decide an Appropriate Lower Power Model and Run That in a Subagent'
Willison relayed and adopted a Claude Code team tip — don't dictate routing rules, let the agent decide — with Jesse Vincent's follow-on prompt that pushes implementation work into lower-power subagents ahead of the Fable price increase. Claude Code persisted it as a memory file, routing substantive implementation to Sonnet and mechanical edits to Haiku while keeping Fable for design, auditing, and synthesis; Willison reports the same throughput with his allowance draining noticeably slower. This is the most directly copyable cost lever published this week: one sentence in a memory file, no harness changes.
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