diff --git a/plans/2026-05-21-functional-code-simplification-plan-v1.md b/docs/archive/2026-pre-baseline/2026-05-21-functional-code-simplification-plan-v1.md
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rename from plans/2026-05-21-functional-code-simplification-plan-v1.md
rename to docs/archive/2026-pre-baseline/2026-05-21-functional-code-simplification-plan-v1.md