Spotify Engineering built a Claude Code plugin that translates natural language into Spotify Ads API v3 calls, eliminating the need to manually orchestrate complex multi-step campaign creation workflows. The plugin is written entirely in Markdown files with no compiled code, using skills, agents, and hooks. It ships the full OpenAPI spec (~8,600 lines) as the source of truth, leveraging OpenAPI Links to encode entity relationships (campaign → ad set → ad) so the LLM agent can follow the correct call sequence. The team deliberately avoided MCP due to the large API surface and chose curl-based execution for transparency and debuggability. The plugin is open source under Apache 2.0 and available on GitHub and Anthropic's Claude Plugins marketplace.
