What's New in v5.25.5
Faster Follow-Up Messages
Follow-up messages in existing sessions are now significantly faster:
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Skip skill classification on resumed sessions — the Haiku classification call (~10–15 seconds via CLI) is now skipped when you send a follow-up message in an existing session. Skills were already classified on the first message and baked into the session context — no need to pay for another Haiku call on every subsequent turn.
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Skip system prompt on resumed sessions —
buildSystemPrompt()is no longer called on resumed sessions. Sinceclaude-cli.jsblocks--system-promptwhen--resumeis used (due to cryptographic signatures on thinking blocks), building the system prompt was pure waste. It's now set toundefined, saving both CPU and memory.
Net effect: follow-up messages in existing sessions go straight to Claude without the 10–15 second classification delay.
Install / Update:
npx github:Lexus2016/claude-code-studio@latest