diff --git a/AGENTS.md b/AGENTS.md
index f6f28fb..19ee88c 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -184,7 +184,8 @@ Config search: `--config` path > `./agentkit.yaml` > `~/.agentkit/agentkit.yaml`
 
 ## Conventions
 
-- Skill configs: `configs/skills/*.yaml` (15 presets)
+- Skill configs: `configs/skills/*.yaml` (16 presets, unified as `SkillConfig`)
+- Skill categories: `agent_template` (execution engines: react/direct/rewoo/reflexion/plan_exec/goal_driven) vs `business_skill` (domain skills). Classified via `_ENGINE_TEMPLATE_NAMES` in `server/routes/skill_management.py`. Frontend groups by `category` field — `SkillsView` two-column layout, `SkillCard`/`SkillsTab` show type tags (引擎/技能) and category-based icons
 - LLM configs: `agentkit.yaml` llm section (unified with server config)
 - Pipeline configs: `configs/pipelines/*.yaml`
 - Expert templates: `configs/experts/*.yaml` (5 programming experts + dev_team team template), registered via `ExpertTemplateRegistry`