AI Agent Markdown (eg Claude.md) - spinningideas/resources GitHub Wiki Agent Markdown (eg Claude.md) https://alphasignalai.substack.com/p/karpathy-inspired-claudemd-how-to https://github.com/multica-ai/andrej-karpathy-skills/blob/main/CLAUDE.md https://gist.github.com/spinningideas/1a6a31c2aa6b5e2e73e974513e72e814