1 files changed, 12 insertions, 5 deletions

diff --git a/CONTEXT.md b/CONTEXT.md
index 8ff833c..4508fe6 100644
--- a/CONTEXT.md
+++ b/CONTEXT.md
@@ -692,11 +692,18 @@ vocabulary / decisions.
   `CBaseCombatCharacter::m_hMyWeapons[48]` array (client `m_hMyWeapons` and the
   remembered active weapon are fallbacks). NPC-held weapons are ignored.
   Weapons the player does not own stay under the Weapons category.
-- Ammo pickups also honour "Only if usable": the reserve count from
-  `m_iAmmo[type]` (client array when resolved, otherwise the server
-  `CBaseCombatCharacter::m_iAmmo` array) is compared with the `sk_max_*` cvar
-  (stock caps as fallback, e.g. RPG rockets = 3). Full ammo hides the pickup;
-  if either value cannot be read the item stays visible.
+- Ammo pickups also honour "Only if usable": the reserve count from the
+  authoritative server `CBaseCombatCharacter::m_iAmmo` array is compared with
+  the `sk_max_*` cvar (stock caps as fallback, e.g. RPG rockets = 3); the
+  client array is only a fallback. Full ammo hides the pickup; if either value
+  cannot be read the item stays visible. Preferring the server array fixed
+  "full" counts flickering as other ammo was spent — the client `m_iAmmo`
+  netvar offset can be off by an element.
+- Frag grenade pickups were falling through to a generic "Ammo" label with
+  `ammo_type = -1`, so the usable filter never applied and they always showed.
+  `models/weapons/w_grenade`, `w_frag`, `items/grenade` and `frag_grenade` are
+  now labelled "Frag grenade" and mapped to `m_iAmmo[11]` (`sk_max_grenade`,
+  stock 5). AR2/SMG1 grenade variants map to `m_iAmmo[8]` (stock 3).
 - The datamap offset for `m_iAmmo`/`m_hMyWeapons` points at the
   `CNetworkArray` length header; the actual elements start **4 bytes later**.
   Reading at the raw offset shifted every count by one type (e.g. RPG read the