diff --git a/docs/design/0002-game-account-management.md b/docs/design/0002-game-account-management.md
index 73d05e79..76d9487b 100644
--- a/docs/design/0002-game-account-management.md
+++ b/docs/design/0002-game-account-management.md
@@ -84,8 +84,25 @@ with `slug`, `kind`, `host`, `port`, `protocol`, live `status` /
 `joinInstructions` and `deepLink`. Slugs are stable and hand-picked
 (`eqemu`, `wow`, `daoc`) and are already the join key chat uses.
 
-**That slug is the whole integration.** `GameServer.slug` ↔ mmo-portal
-`provider.key`. No new identifier, no mapping table.
+**That slug is very nearly the whole integration.** `GameServer.slug` ↔
+mmo-portal `provider.key`:
+
+| Drop `GameServer.slug` | provider `key` | |
+|---|---|---|
+| `eqemu` | `eqemu` | matches |
+| `daoc` | `daoc` | matches |
+| `wow` | `trinitycore` | **does not match** |
+
+Two of three agree; WoW does not, because Drop names the *game* and the
+provider names the *emulator*. So Drop needs one explicit alias map rather
+than assuming `slug == key` — a three-entry constant, not a table. Do not
+"fix" this by renaming either side: `GameServer.slug` is already load-bearing
+for chat's `KNOWN_SERVERS` match (see `community-servers.prisma`), and
+`provider.key` is the registry lookup used across mmo-portal's routes,
+templates and its own SQLite link rows.
+
+Asserted in `mmo-portal/tests/test_internal_api.py` so a rename breaks a test
+instead of silently breaking the mapping.
 
 ## Coverage