Summary

• Adds Manifest (GitHub) to the list
• Manifest provides a Claude Code skill for setting up cost observability on OpenClaw agents
• Skill: https://github.com/mnfst/manifest/blob/main/skills/manifest/SKILL.md
• 3.3k GitHub stars, MIT licensed, self-hosted

Why it belongs here

Manifest includes a Claude Code skill (SKILL.md) that guides users through plugin installation, API key setup, and verification — fits perfectly in a curated Claude Skills list.