Devin
Cognition's AI software engineer — plans, codes, debugs and ships tasks independently.
Why it's listed
If you need an AI teammate that handles complex dev tasks end‑to‑end, Devin is worth a look. It plans, codes, debugs and deploys autonomously, saving you constant guidance. It's more stable than most open‑source alternatives in real‑world use.
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Anthropic's official skills repo — the de facto reference set for the SKILL.md format.
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The most influential agent-skills collection: TDD, plan-first and debugging methodology, installable.
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