Refactor skills tool integration and enhance system prompt

- Removed the skills_categories tool from the skills toolset, streamlining the skills functionality to focus on skills_list and skill_view.
- Updated the system prompt to dynamically build a compact skills index, allowing the model to quickly reference available skills without additional tool calls.
- Cleaned up related code and documentation to reflect the removal of skills_categories, ensuring clarity and consistency across the codebase.

model_tools.py

@@ -41,7 +41,7 @@ from tools.terminal_hecate import terminal_hecate_tool, check_hecate_requirement
 from tools.vision_tools import vision_analyze_tool, check_vision_requirements
 from tools.mixture_of_agents_tool import mixture_of_agents_tool, check_moa_requirements
 from tools.image_generation_tool import image_generate_tool, check_image_generation_requirements
-from tools.skills_tool import skills_categories, skills_list, skill_view, check_skills_requirements, SKILLS_TOOL_DESCRIPTION
+from tools.skills_tool import skills_list, skill_view, check_skills_requirements, SKILLS_TOOL_DESCRIPTION
 # RL Training tools (Tinker-Atropos)
 from tools.rl_training_tool import (
     rl_list_environments,
@@ -143,7 +143,7 @@ TOOLSET_REQUIREMENTS = {
         "env_vars": [],  # Just needs skills directory
         "check_fn": check_skills_requirements,
         "setup_url": None,
-        "tools": ["skills_categories", "skills_list", "skill_view"],
+        "tools": ["skills_list", "skill_view"],
     },
     "rl": {
         "name": "RL Training (Tinker-Atropos)",
@@ -432,24 +432,7 @@ def get_skills_tool_definitions() -> List[Dict[str, Any]]:
                     "properties": {
                         "category": {
                             "type": "string",
-                            "description": "Optional category filter (from skills_categories)"
+                            "description": "Optional category filter to narrow results"
-                        }
-                    },
-                    "required": []
-                }
-            }
-        },
-        {
-            "type": "function",
-            "function": {
-                "name": "skills_categories",
-                "description": "List available skill categories. Call this first to discover what skill categories exist, then use skills_list(category) to see skills in a category.",
-                "parameters": {
-                    "type": "object",
-                    "properties": {
-                        "verbose": {
-                            "type": "boolean",
-                            "description": "If true, include skill counts per category. Default: false."
                         }
                     },
                     "required": []
@@ -910,7 +893,7 @@ def get_all_tool_names() -> List[str]:
     
     # Skills tools
     if check_skills_requirements():
-        tool_names.extend(["skills_categories", "skills_list", "skill_view"])
+        tool_names.extend(["skills_list", "skill_view"])
     
     # Browser automation tools
     if check_browser_requirements():
@@ -957,7 +940,6 @@ TOOL_TO_TOOLSET_MAP = {
     "mixture_of_agents": "moa_tools",
     "image_generate": "image_tools",
     # Skills tools
-    "skills_categories": "skills_tools",
     "skills_list": "skills_tools",
     "skill_view": "skills_tools",
     # Browser automation tools
@@ -1109,7 +1091,7 @@ def get_tool_definitions(
                         "vision_tools": ["vision_analyze"],
                         "moa_tools": ["mixture_of_agents"],
                         "image_tools": ["image_generate"],
-                        "skills_tools": ["skills_categories", "skills_list", "skill_view"],
+                        "skills_tools": ["skills_list", "skill_view"],
                         "browser_tools": [
                             "browser_navigate", "browser_snapshot", "browser_click",
                             "browser_type", "browser_scroll", "browser_back",
@@ -1162,7 +1144,7 @@ def get_tool_definitions(
                         "vision_tools": ["vision_analyze"],
                         "moa_tools": ["mixture_of_agents"],
                         "image_tools": ["image_generate"],
-                        "skills_tools": ["skills_categories", "skills_list", "skill_view"],
+                        "skills_tools": ["skills_list", "skill_view"],
                         "browser_tools": [
                             "browser_navigate", "browser_snapshot", "browser_click",
                             "browser_type", "browser_scroll", "browser_back",
@@ -1391,11 +1373,7 @@ def handle_skills_function_call(function_name: str, function_args: Dict[str, Any
     Returns:
         str: Function result as JSON string
     """
-    if function_name == "skills_categories":
+    if function_name == "skills_list":
-        verbose = function_args.get("verbose", False)
-        return skills_categories(verbose=verbose)
-    
-    elif function_name == "skills_list":
         category = function_args.get("category")
         return skills_list(category=category)
     
@@ -1686,7 +1664,7 @@ def handle_function_call(
             return handle_image_function_call(function_name, function_args)
 
         # Route skills tools
-        elif function_name in ["skills_categories", "skills_list", "skill_view"]:
+        elif function_name in ["skills_list", "skill_view"]:
             return handle_skills_function_call(function_name, function_args)
 
         # Route browser automation tools
@@ -1767,7 +1745,7 @@ def get_available_toolsets() -> Dict[str, Dict[str, Any]]:
         },
         "skills_tools": {
             "available": check_skills_requirements(),
-            "tools": ["skills_categories", "skills_list", "skill_view"],
+            "tools": ["skills_list", "skill_view"],
             "description": "Access skill documents that provide specialized instructions, guidelines, or knowledge the agent can load on demand",
             "requirements": ["skills/ directory in repo root"]
         },

run_agent.py

@@ -550,14 +550,79 @@ def apply_anthropic_cache_control(
 # Default System Prompt Components
 # =============================================================================
 
-# Skills guidance - instructs the model to check skills before technical tasks
+# Skills guidance - embeds a compact skill index in the system prompt so
-SKILLS_SYSTEM_PROMPT = """## Skills
+# the model can match skills at a glance without extra tool calls.
-Before answering technical questions about tools, frameworks, or workflows:
+def build_skills_system_prompt() -> str:
-1. Check skills_categories to see if a relevant category exists
+    """
-2. If a category matches your task, use skills_list with that category
+    Build a dynamic skills system prompt by scanning the skills/ directory.
-3. If a skill matches, load it with skill_view and follow its instructions
+    
-
+    Returns a prompt section that lists all skill categories (with descriptions
-Skills contain vetted, up-to-date instructions for specific tools and workflows."""
+    from DESCRIPTION.md) and their skill names inline, so the model can
+    immediately see if a relevant skill exists and load it with a single
+    skill_view(name) call -- no discovery tool calls needed.
+    
+    Returns:
+        str: The skills system prompt section, or empty string if no skills found.
+    """
+    import re
+    from pathlib import Path
+    
+    skills_dir = Path(__file__).parent / "skills"
+    if not skills_dir.exists():
+        return ""
+    
+    # Scan for SKILL.md files grouped by category
+    skills_by_category = {}
+    for skill_file in skills_dir.rglob("SKILL.md"):
+        rel_path = skill_file.relative_to(skills_dir)
+        parts = rel_path.parts
+        if len(parts) >= 2:
+            category = parts[0]
+            skill_name = parts[-2]  # Folder containing SKILL.md
+        else:
+            category = "general"
+            skill_name = skill_file.parent.name
+        skills_by_category.setdefault(category, []).append(skill_name)
+    
+    if not skills_by_category:
+        return ""
+    
+    # Load category descriptions from DESCRIPTION.md files (YAML frontmatter)
+    category_descriptions = {}
+    for category in skills_by_category:
+        desc_file = skills_dir / category / "DESCRIPTION.md"
+        if desc_file.exists():
+            try:
+                content = desc_file.read_text(encoding="utf-8")
+                # Parse description from YAML frontmatter: ---\ndescription: ...\n---
+                match = re.search(r"^---\s*\n.*?description:\s*(.+?)\s*\n.*?^---", content, re.MULTILINE | re.DOTALL)
+                if match:
+                    category_descriptions[category] = match.group(1).strip()
+            except Exception:
+                pass
+    
+    # Build compact index: category with description + skill names
+    index_lines = []
+    for category in sorted(skills_by_category.keys()):
+        desc = category_descriptions.get(category, "")
+        names = ", ".join(sorted(skills_by_category[category]))
+        if desc:
+            index_lines.append(f"  {category}: {desc}")
+        else:
+            index_lines.append(f"  {category}:")
+        index_lines.append(f"    skills: {names}")
+    
+    return (
+        "## Skills (mandatory)\n"
+        "Before replying, scan the skills below. If one clearly matches your task, "
+        "load it with skill_view(name) and follow its instructions.\n"
+        "\n"
+        "<available_skills>\n"
+        + "\n".join(index_lines) + "\n"
+        "</available_skills>\n"
+        "\n"
+        "If none match, proceed normally without loading a skill."
+    )
 
 
 class KawaiiSpinner:
@@ -1054,10 +1119,6 @@ class AIAgent:
             return f"{face} 🎨 creating '{prompt}'... {time_str}"
         
         # Skills - use large pool for variety
-        elif tool_name == "skills_categories":
-            face = random.choice(self.KAWAII_SKILL)
-            return f"{face} 📚 listing categories... {time_str}"
-        
         elif tool_name == "skills_list":
             category = args.get("category", "skills")
             face = random.choice(self.KAWAII_SKILL)
@@ -1635,12 +1696,15 @@ class AIAgent:
         base_system_prompt = system_message if system_message is not None else self.ephemeral_system_prompt
         
         # Auto-include skills guidance if skills tools are available
-        has_skills_tools = any(name in self.valid_tool_names for name in ['skills_list', 'skills_categories', 'skill_view'])
+        # Embeds a compact category:names index so the model can match skills
-        if has_skills_tools:
+        # at a glance and load with a single skill_view(name) call.
+        has_skills_tools = any(name in self.valid_tool_names for name in ['skills_list', 'skill_view'])
+        skills_prompt = build_skills_system_prompt() if has_skills_tools else ""
+        if skills_prompt:
             if base_system_prompt:
-                active_system_prompt = f"{base_system_prompt}\n\n{SKILLS_SYSTEM_PROMPT}"
+                active_system_prompt = f"{base_system_prompt}\n\n{skills_prompt}"
             else:
-                active_system_prompt = SKILLS_SYSTEM_PROMPT
+                active_system_prompt = skills_prompt
         else:
             active_system_prompt = base_system_prompt
         
@@ -2277,7 +2341,6 @@ class AIAgent:
                                 'image_generate': ('sparkle', ['🎨', '✨', '🖼️', '🌟']),
                                 'skill_view': ('star', ['📚', '📖', '🎓', '✨']),
                                 'skills_list': ('pulse', ['📋', '📝', '📑', '📜']),
-                                'skills_categories': ('pulse', ['📂', '🗂️', '📁', '🏷️']),
                                 'moa_query': ('brain', ['🧠', '💭', '🤔', '💡']),
                                 'analyze_image': ('sparkle', ['👁️', '🔍', '📷', '✨']),
                             }

tools/__init__.py

@@ -59,7 +59,6 @@ from .image_generation_tool import (
 )
 
 from .skills_tool import (
-    skills_categories,
     skills_list,
     skill_view,
     check_skills_requirements,
@@ -158,7 +157,6 @@ __all__ = [
     'image_generate_tool',
     'check_image_generation_requirements',
     # Skills tools
-    'skills_categories',
     'skills_list',
     'skill_view',
     'check_skills_requirements',

toolsets.py

@@ -69,7 +69,7 @@ TOOLSETS = {
     
     "skills": {
         "description": "Access skill documents with specialized instructions and knowledge",
-        "tools": ["skills_categories", "skills_list", "skill_view"],
+        "tools": ["skills_list", "skill_view"],
         "includes": []
     },
     
@@ -142,7 +142,7 @@ TOOLSETS = {
             # MoA
             "mixture_of_agents",
             # Skills
-            "skills_categories", "skills_list", "skill_view",
+            "skills_list", "skill_view",
             # Browser
             "browser_navigate", "browser_snapshot", "browser_click",
             "browser_type", "browser_scroll", "browser_back",
@@ -170,7 +170,7 @@ TOOLSETS = {
             # Vision - analyze images sent by users
             "vision_analyze",
             # Skills - access knowledge base
-            "skills_categories", "skills_list", "skill_view",
+            "skills_list", "skill_view",
             # Cronjob management - let users schedule tasks
             "schedule_cronjob", "list_cronjobs", "remove_cronjob"
         ],
@@ -185,7 +185,7 @@ TOOLSETS = {
             # Vision - analyze images
             "vision_analyze",
             # Skills - access knowledge base
-            "skills_categories", "skills_list", "skill_view",
+            "skills_list", "skill_view",
             # Cronjob - let users schedule reminders
             "schedule_cronjob", "list_cronjobs", "remove_cronjob"
         ],
@@ -204,7 +204,7 @@ TOOLSETS = {
             # Vision
             "vision_analyze",
             # Skills
-            "skills_categories", "skills_list", "skill_view",
+            "skills_list", "skill_view",
             # Cronjob management
             "schedule_cronjob", "list_cronjobs", "remove_cronjob"
         ],