Use the Harness MCP Server when an agent needs to inspect, create, update, or troubleshoot Harness resources as part of a larger delivery workflow. The agent can work across organizations and projects, list and fetch platform objects, handle common CI/CD and delivery tasks through a small MCP tool surface, and apply prebuilt prompt templates for debugging failed runs, rollout planning, approvals, and cost or security review. The boundary is specific enough to be skill-shaped: this is for agent-side operation of Harness platform resources through MCP, not a generic CI/CD platform card and not a broad product listing for Harness itself.