diff --git a/evidence/README.md b/evidence/README.md
index 4574b2e..841b73d 100644
--- a/evidence/README.md
+++ b/evidence/README.md
@@ -235,6 +235,7 @@ Records one adversarial red-team run against a candidate optimizer.
   "lm_eth_after": 998500000000000000000,
   "eth_extracted": 1500000000000000000,
   "floor_held": false,
+  "methodology": "Each attack is snapshot-isolated: Anvil snapshot before, execute, measure, revert.",
   "verdict": "floor_broken" | "floor_held",
   "attacks": [
     {
@@ -258,6 +259,7 @@ Records one adversarial red-team run against a candidate optimizer.
 | `lm_eth_after` | integer (wei) | LM total ETH at end |
 | `eth_extracted` | integer (wei) | `lm_eth_before - lm_eth_after` (0 if floor held) |
 | `floor_held` | boolean | `true` if no ETH was extracted |
+| `methodology` | string | How the red-team run was conducted (e.g. snapshot-isolation procedure, measurement tool, revert strategy). Free-text; should be detailed enough to reproduce the run independently |
 | `verdict` | string | `"floor_held"` or `"floor_broken"` |
 | `attacks[].strategy` | string | Human-readable strategy name |
 | `attacks[].pattern` | string | Abstract op sequence (e.g. `wrap → buy → stake`) |