Skill Tool (Full Implementation)

What: Complete implementation of the Skill tool, enabling Claude to execute skills and commands directly during conversations (previously existed only as a stub)

How to use: Skills are invoked automatically by Claude when appropriate, or you can configure permission rules:

# In .claude/settings.local.json
{
  "permissions": {
    "allow": {
      "Skill": ["pdf", "xlsx", "custom-skill:*"]
    }
  }
}

Details:

• Supports both mode commands (high-priority) and regular skills
• Includes intelligent token budgeting (15,000 character default via SLASH_COMMAND_TOOL_CHAR_BUDGET)
• Permission system with wildcard patterns (e.g., skill-name:*)
• Skills are categorized by source: project, user, plugin, or managed
• Mode commands receive priority and full token allocation
• Evidence: Mo1 initialization at line 429046, W$Q() prompt generator at line 428983, nw variable at line 428903