AI Agent GitHub Digest — 2026-10-25
**NVIDIA/OpenShell** (19.3k★, +893) pushes agent sandboxing down into the kernel and runs formal verification on every policy change before it ships; **feder-cr/git-ai** (988★) rebuilds Scion — the system Anthropic described in public but never open-sourced — so hundreds of agents can write to the same branch without Git grinding to a halt; **makecindy/cindy** (3,971★, +471) wraps Claude Code and Codex into one desktop/mobile client; and AWS's own **agent-toolkit-for-aws** (3,055★) packages the MCP servers and guardrails agents need to deploy on AWS into an official plugin set. Releases: Pydantic AI v2.61.0's compatibility notes lock down thinking-setting overrides and how `CohereModel` handles unsupported files; Haystack v3.4.1 joins LangGraph in raising its certifi floor after a certificate authority's private keys leaked.