diff --git a/docs/architecture/CALCULATIONS.md b/docs/architecture/CALCULATIONS.md
index d4978c9d45..63ff4f1059 100644
--- a/docs/architecture/CALCULATIONS.md
+++ b/docs/architecture/CALCULATIONS.md
@@ -518,3 +518,33 @@ the system isn't learning, it's replaying us.
 Design law: PRIMITIVES ARE FEW AND FROZEN. MOVES ARE MANY AND GROWN.
 Never promote a composition to primitive because it feels fundamental.
 Promote only when removing it breaks things nothing else can repair.
+
+## 25. Quarantine and rehabilitation — resurrection's second edge
+
+Resurrection has a second edge: restore an unfixed bug and the problem
+rides back in with it. So bugs are never deleted AND never blindly
+restored. They are:
+
+    1. CONTAINED   — system heals immediately; work resumes clean.
+                    The bug is cut out of live operation whole.
+    2. QUARANTINED — preserved intact in an isolated region,
+                    append-only like everything else. Not deleted:
+                    deletion would destroy the evidence we need.
+    3. DISSECTED   — the bug carries its own antidote inside itself:
+                    its code shows the entry path, the exploited
+                    weakness, the behavior signature. A root worm
+                    knows the hole it crawled through.
+    4. REPAIRED    — fix the ROOT the dissection revealed, not just
+                    the symptom that got cut out. Patch the hole,
+                    not the worm.
+    5. REMEMBERED  — signature stored in immune memory; every future
+                    variant matches instantly and gets caught at the
+                    gate instead of inside.
+
+Resurrection policy: bugs may be resurrected ONLY inside the study
+lab (sandboxed, observed, harmless). Never into production. The
+quarantine keeps the lesson alive while keeping the disease dead.
+
+This is the immune system, formalized: contain, learn, remember,
+repair the wall — and the organism comes out stronger than before
+the infection, because now it knows something it didn't.