cosmicstack-labs/mercury-agent-skills

A curated registry of reusable Mercury Agent, Open Claw or Hermes Agent skills designed for real developer workflows, persistent memory, and token-efficient execution.

What it solves

It provides a standardized, curated library of "playbooks" (skills) that AI agents can use to perform specific tasks more effectively. Instead of relying on generic AI responses, agents can load these hand-written instructions to follow professional workflows, scoring rubrics, and actionable guidance across various domains.

How it works

Skills are stored as SKILL.md files containing YAML frontmatter for metadata and a Markdown body for instructions. This universal format allows them to be compatible with multiple agent runtimes (such as Mercury, Claude Code, and Cursor). Users can install these skills via a CLI tool or by manually placing the files into the agent's designated skills directory.

Who it’s for

Developers and AI agent users who want to enhance their agents' capabilities with production-ready, curated workflows for development, DevOps, AI/ML, business, and other specialized fields.

Highlights

  • Universal Compatibility: Works across major agents including Mercury, Claude Code, Codex CLI, OpenClaw, Hermes, Cursor, and Gemini CLI.
  • Extensive Library: Contains over 130 skills across 23 categories, ranging from prompt engineering to financial analysis.
  • Easy Installation: Supports one-command CLI installation with version pinning and rollback capabilities.
  • ** idea Discoverability**: Features a dedicated web registry with full-text search, categories, and a trending leaderboard.

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