Add AgentSight and ActPlane to agent infrastructure

[yunwei37]

Summary

• Add AgentSight (357 stars, MIT) — zero-instrumentation eBPF observability for LLM/coding agents; captures syscall-level traces (file, process, network) without modifying the agent.
• Add ActPlane (19 stars, MIT) — OS-level agent harness that compiles a policy DSL to an eBPF engine for labeled information-flow control at the syscall boundary, with corrective feedback.

Both are placed in the Agent infrastructure section, sorted by star count per the contribution guidelines.

Checklist

• Both projects have a CLI/terminal interface
• Both can autonomously read/write code or run commands (observability and enforcement at the OS level)
• Both link to valid, active GitHub repos
• Entries follow the existing format (name + link, star count, 1–2 line description, license)
• Entries placed in correct star-count order within the section

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Updates the README’s tooling list by adding two new agent-related projects to the “Sandboxes, routers, browser/terminal automation, and extension tools” section.

Changes:

• Added AgentSight (eBPF observability for LLM/coding agents) to the list.
• Added ActPlane (OS-level agent harness with eBPF policy enforcement) to the list.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.