New article: Heavy AI Agents Are an Anti-Pattern
Canonical version: New article: Heavy AI Agents Are an Anti-Pattern.
Heavy AI Agents Are an Anti-Pattern: Why Fewer Agents With More Skills Wins
Heavy specialized AI agents are an anti-pattern. Fewer agents with deep skill libraries beat them on every axis that matters: cognitive load, flexibility, context budget, determinism, and maintenance
Sebastien Dubois
My argument: large rosters of specialized AI agents are an anti-pattern. With fifteen specialists, you spend more time managing the roster than using AI to get work done. I recommend fewer agents with deeper skill libraries instead.
Key points from the article:
- Heavy agents create cognitive overhead. Once you cross 5 agents, the roster itself becomes a thing you manage.
- Specialists are brittle. Real tasks straddle boundaries. The "writing" task often needs code; the "research" task often needs a diagram.
- Skills keep the Context Window lean. A heavy agent starts with a half-full context window. A skill-based agent starts almost empty and only loads what the request needs (the Prompt Lazy Loading AI Design Pattern (PLL) applied to capabilities).
- Skills add determinism through templates, scripts, and embedded programs. Routing stays probabilistic; execution becomes deterministic.
- Mental model: AI Agents = the rules of the game (small, stable). AI Agent Skills = the toolbox (many, replaceable). Don't conflate them.
- Update one skill, every agent benefits (see AI Skill Composability). With three specialists that each embed their own knowledge, you have to update all three.
Specialization IS real, but I put it in the SKILL rather than in the AGENT. A hyper-specific skill that any generalist agent loads on demand gives you the same precision without the cost of orchestrating many agents.
If your agent list is long, merge agents and move their capabilities into skills. Over time, the skill library grows while the agents barely change.
Related
- Heavy AI Agents Are an Anti-Pattern - Why Fewer Agents With More Skills Wins (Article)
- AI Agents
- AI Agent Skills
- AI Skill Composability
- Context Window
- Prompt Lazy Loading AI Design Pattern (PLL)
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