Skills
- 25.1K
Promptfoo
Promptfoo · Tool / CLI
Test and compare prompts, agents and RAG pipelines, and red-team them for security problems, from the command line.
MetaAny agent / LLMActive. Last activity Sep 15, 2026 - 176.4K
Skill Creator
Anthropic · Skill
The official Anthropic skill for writing new Agent Skills, improving existing ones and measuring them with evals.
MetaClaude Code, Claude.ai / DesktopActive. Last activity Sep 10, 2026 - 17.1K
SkillOpt
Microsoft · Tool / CLI
Microsoft's optimizer that trains agent skills like neural networks, with epochs and validation gates, without touching weights.
MetaAny agent / LLMActive. Last activity Sep 5, 2026