Herdr, the open runtime for coding agents, joins Y Combinator
The Rust multiplexer keeps agents alive across your machines and stays Apache-2.0. Also: Copilot retires six models Sept 1; Vercel auto-loads agent skills.

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One terminal, every agent, always on
Herdr is a single Rust binary that runs Claude Code, Codex and other CLI agents in persistent panes, showing each one's state — blocked, working, or done — at a glance. Detach and reattach without losing a session, and agents can even spawn their own panes and coordinate over a socket API. It's at 22k+ GitHub stars and 340k downloads on v0.8.0.
The runtime stays open — Apache 2.0, not AGPL
Ahead of joining Y Combinator's F26 batch, creator Can Celik relicensed the core from AGPL to Apache 2.0 so anyone can build on it freely. It's working: 500+ community plugins in the first month, plus third-party Raycast, Stream Deck and iOS clients. The open worry, raised on Hacker News, is the usual VC-era one — commenters cite Warp's path and fear enshittification.
Build this weekend: your agents, across every machine
Install with one line (curl -fsSL https://herdr.dev/install.sh | sh, or brew install herdr) and stitch a laptop, a VPS and cloud sandboxes into one runtime, so a long-running agent job keeps churning after you close the lid. Since clients are just plugins, you can babysit it from a Stream Deck or your phone.
Copilot retires six models on September 1
GitHub Copilot is deprecating Gemini 3.1 Pro, Claude Opus 4.5 and 4.6, Claude Sonnet 4.5 and 4.6, and Raptor Mini on Sept 1 — move to Opus 5, Sonnet 5, Gemini 3.6 Flash or MAI-Code-1-Flash first. One reprieve: Sonnet 4.6 stays for individual subscribers on annual plans.
Vercel's CLI now auto-installs agent skills
Set up a Vercel marketplace integration and the CLI now drops that provider's agent skill straight into v0, Claude Code, Cursor and Codex — your agent gets the service's context with no manual wiring.