500 Skills, Zero Fine-Tuning: LinkedIn's Playbook for AI Agents — Ajay Prakash, LinkedIn
LinkedIn has built a system where AI agents can automatically handle coding tasks and incidents—from detecting an alarm to proposing and applying a fix within minutes.
The challenge was that agents hallucinated when encountering LinkedIn's thousands of internal code repositories, proprietary databases, and unique configuration systems. Instead of providing agents with all tools at once, they use three simple meta-tools (search, fetch schema, execute) and something called "playbooks"—instructions stored as tools that agents can invoke. Playbooks are modular and updated when agents find them outdated, keeping the knowledge collection current.
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