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---
name: re-derivation
description: Re-derive conclusions under a negated assumption, tracking where the derivation diverges from the original.
execution: subagent
prompt: ./prompt.md
input: original_method, alternative_assumption
used-by: assumption-criticality
---
## Execution
Subagent — spawned via subagent-spawning/spawn-agent.
## Budget
One unit = one complete re-derivation under one alternative assumption.