# X_SIDE_EFFECTS_ANCHOR_STALE

## Means

a `SIDE_EFFECTS_ANCHORS` row naming a module nothing declares

## Typical cause

the module was renamed, deleted, or its package stopped declaring it side-effecting, so the row argues for an anchor that protects nothing while still reading as a rule in force — `X_TIER_FLOOR_STALE` is the identical half of `FLOOR_ABOVE`

## Fix

delete that row from `SIDE_EFFECTS_ANCHORS` in `scripts/lib/side-effects-scan.ts`, or point it at the module it was written for

[CLI and verify](/error-codes#cli-and-verify)