Turn your agents into billing experts

Agent Skills are installable knowledge packages that give AI coding agents expert-level knowledge about specific topics. Unlike MCP servers that provide tools, skills provide context and best practices that agents use when writing code. Install them with npx skills add.

MCP servers give agents tools to perform actions (like creating a plan or tracking usage). Skills give agents expert-level knowledge on specific topics (like when to use metered vs credits billing). Combine both for the best results — tools plus the knowledge to use them correctly.

Skills work with any agent that supports SKILL.md files, including Cursor, Claude Code, Codex, Gemini CLI, GitHub Copilot, OpenCode, and Windsurf.

Run npx skills add commet-labs/commet-skills to pick and install the skills you need. Skills activate automatically when relevant tasks are detected, although you can also invoke them manually by asking your agent to use them.

The main package includes 5 skills: Commet SDK integration, billing business rules, CLI commands, webhook handling, and AI token billing. Install all with one command or pick individual skills.

It teaches agents how to handle subscription lifecycle, failed payments, proration, multi-currency billing, tax compliance, and invoicing. Universal billing knowledge with Commet code examples.

It helps agents choose and implement the right pricing model — metered, credits, balance, seats, or hybrid combinations. Includes decision frameworks and implementation patterns for each model.

It covers the full subscription lifecycle — free trials, intro offers, upgrades, downgrades, proration logic, dunning and payment retries, cancellation flows, and add-ons.