Updating mechanics for OS protocols

docs/TALENT_MECHANIC_RULES.md

@@ -26,8 +26,8 @@ Use these event boundaries:
 - **Healing:** Count each healing event. A heal-over-time effect counts each
   tick as a separate event.
 - **Extra Health gained:** Count every Extra Health grant, including a grant
-  received while the Agent already has Extra Health. Use
-  `extra_health_granted` for the grant action.
+  received while the Agent already has Extra Health. Use `extra_health_granted`
+  for the grant action.
 - **Extra Health state changed:** `extra_health_changed` is Agent-scoped. Emit
   it when the Agent receives a grant, when the remaining amount changes, and
   when it is depleted to zero. Every event requires the boolean
@@ -35,8 +35,8 @@ Use these event boundaries:
   `values.currentExtraHealth`, which must agree with that status. This state
   event is distinct from the `extra_health_granted` grant action.
 - **Reloading:** Trigger on reload completion when the weapon had at least one
-  round to load. A canceled reload does not count. A weapon that loads one
-  round at a time produces one completed-reload event for each round.
+  round to load. A canceled reload does not count. A weapon that loads one round
+  at a time produces one completed-reload event for each round.
 - **Taking damage:** Require Health loss. A hit absorbed by Extra Health does
   not count as taking damage.
 
@@ -59,8 +59,8 @@ Inspiration and Crossfire use a binary deployed-Skill state:
 
 - The benefit remains active while the Agent has at least one persistent
   deployed Skill object.
-- Destruction or timed expiration removes that object from the active count.
-  The benefit ends when no qualifying objects remain.
+- Destruction or timed expiration removes that object from the active count. The
+  benefit ends when no qualifying objects remain.
 - Instant-use Skills do not qualify.
 - Multiple deployed Skill objects do not multiply the benefit.
 
@@ -75,8 +75,8 @@ meters:
 
 - Moving within 30 meters of an ally who is already downed qualifies.
 - Each qualifying presence refreshes the ten-second duration.
-- Leaving the radius or reviving the ally does not cancel the current
-  ten-second duration.
+- Leaving the radius or reviving the ally does not cancel the current ten-second
+  duration.
 - The wearer does not count as an ally.
 
 ## Emergency Retreat
@@ -93,9 +93,9 @@ qualifies when the weapon had at least one round to load. This includes each
 round inserted by a weapon that reloads one round at a time. A canceled reload
 does not qualify.
 
-Resolve the Extra Health amount from the Agent's displayed Firepower when
-Second Wind activates. Include all equipped-item and active-buff contributions
-in that Firepower value:
+Resolve the Extra Health amount from the Agent's displayed Firepower when Second
+Wind activates. Include all equipped-item and active-buff contributions in that
+Firepower value:
 
 - Tier I grants Extra Health equal to 600% of displayed Firepower.
 - Tier II grants Extra Health equal to 840% of displayed Firepower.
@@ -103,19 +103,39 @@ in that Firepower value:
 Second Wind adds its Extra Health to Extra Health from other sources. Its
 five-second duration and five-second cooldown start when it activates. Expiry
 removes only the Second Wind contribution. At the five-second boundary, the
-prior grant can expire as a qualifying reload completion grants a new amount.
-If Second Wind supplies the Agent's only Extra Health, the old amount expires
-and the new amount begins at that boundary.
+prior grant can expire as a qualifying reload completion grants a new amount. If
+Second Wind supplies the Agent's only Extra Health, the old amount expires and
+the new amount begins at that boundary.
 
 ## Nothing to Lose
 
 Nothing to Lose uses a forward-looking deployment window:
 
-- Each Health-damage instance makes its own 50% activation roll. Damage
-  absorbed by Extra Health does not roll.
+- Each Health-damage instance makes its own 50% activation roll. Damage absorbed
+  by Extra Health does not roll.
 - A successful activation applies to every Skill deployed during the five
-  seconds after that damage instance. Several Skills can qualify during the
-  same window.
+  seconds after that damage instance. Several Skills can qualify during the same
+  window.
 - Calculate each reduction from the Skill's total cooldown after equipment
   modifiers.
 - A Skill can receive no more than three reductions during one cooldown cycle.
+
+## OS Protocol Talents
+
+Happy Survival restores Health once per second while it has a qualifying nearby
+enemy count. Each restoration resolves 0.5% of maximum Health per enemy within
+10 meters, capped at 2.5% before OS Protocol upgrade scaling.
+
+Explosive Charge requires three seconds of uninterrupted firing. Completion
+opens an eight-second window to deploy the next Skill. The window ends when the
+Agent deploys that Skill. Only the enhanced Skill's first damaging hit creates
+the five-meter explosion. The shared Talent cooldown rule starts its five-second
+cooldown when that explosion activates.
+
+Heavy Armor and Pummeling Shield replace and refresh their own active Extra
+Health grant when the same Talent activates again. Extra Health grants from
+different sources remain separate.
+
+Pummeling Shield counts confirmed weapon hits while the Agent possesses Extra
+Health. Losing all Extra Health resets the hit count. The full-Health condition
+checks Health immediately before the incoming hit resolves.