Add protocol prompt area before history

Introduce a new prompt "protocol" separate from extras: add LoopData.protocol_temporary and protocol_persistent, include protocol contents before message history during prompt construction, and clear temporary protocol data each turn. Add helper _build_context_message to render protocol/extras, update response input conversion to include protocol, and move project instructions & active/loaded skills injection into protocol. Update docs, prompts, plugin metadata, the SkillsTool message, and add tests to verify protocol placement and behavior.

plugins/_skills/AGENTS.md

@@ -2,7 +2,7 @@
 
 ## Purpose
 
-- Own active and hidden skill configuration injected into prompt extras on each turn.
+- Own active and hidden skill configuration injected into prompt protocol on each turn.
 
 ## Ownership
 

plugins/_skills/README.md

@@ -6,7 +6,7 @@ Skills is a built-in Agent Zero plugin that manages active skills across scope d
 
 - pins default skills for the current plugin scope
 - hides noisy skills from the model-facing available catalog, skill search, and load access
-- injects the effective active skills into prompt extras on every turn
+- injects the effective active skills into prompt protocol on every turn
 - extends the same config screen with a current-chat mode so users can activate or hide skills live per conversation
 - supports global and project scoped configurations without agent-profile variants
 - links directly to the built-in Skills list
@@ -21,7 +21,7 @@ The shared active-skill state and prompt-resolution logic live in `helpers/skill
 
 ## Notes
 
-- keep the active list short because every active skill is injected into prompt extras every turn
+- keep the active list short because every active skill is injected into prompt protocol every turn
 - the default cap is 20 active skills, and it can be raised or lowered in Skills plugin config
 - hidden skills are not capped because they are stored as control data, not injected into the prompt
 - selected skills are stored in normalized `/a0/...` form so configs stay portable across development and Docker-style layouts

plugins/_skills/extensions/python/message_loop_prompts_after/_66_include_active_skills.py

@@ -10,14 +10,14 @@ class IncludeActiveSkills(Extension):
         if not self.agent:
             return
 
-        extras = loop_data.extras_persistent
-        extras.pop("active_skills", None)
+        protocol = loop_data.protocol_persistent
+        protocol.pop("active_skills", None)
 
         content = skills.build_active_skills_prompt(self.agent)
         if not content:
             return
 
-        extras["active_skills"] = self.agent.read_prompt(
+        protocol["active_skills"] = self.agent.read_prompt(
             "agent.system.active_skills.md",
             skills=content,
         )

plugins/_skills/plugin.yaml

@@ -1,6 +1,6 @@
 name: _skills
 title: Skills
-description: Pin skills into prompt extras on every turn.
+description: Pin skills into prompt protocol on every turn.
 version: 1.0.0
 always_enabled: true
 settings_sections: