Skills are pre-built analytical workflows your agent can run on top of its core job. Unlike the agent's main work (answering tickets, writing posts), skills are distinct multi-step processes with their own logic and output artifacts.
A skill is NOT:
A single tool call (that's just a tool)
The agent's core behavior (that emerges from instructions + integrations)
A skill IS:
A distinct workflow with multiple steps
Has its own process and branching logic
Produces its own output artifact (report, analysis, draft articles)