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ultracost

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Quality-first per-stage model routing AND a pre-flight cost gate for Claude Code dynamic workflows. Use when authoring or running ultracode / dynamic-workflow scripts, spawning subagents, or writing agent() stages — pin the right model and effort on every stage, then estimate cost and confirm with the user before launching. Verify scripts with /ultracost:check.

When to use

• authoring dynamic-workflow scripts
• running ultracode workflows
• spawning subagents
• writing agent() stages
• pinning model and effort per stage
• estimating workflow cost
• verifying scripts with /ultracost:check

When not to use

• using haiku model
• letting stages inherit session model by default

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