https://agentty.org/blog/ Release notes, performance deep dives, and design notes from the agentty project — the native C++26 claude-code alternative. en-us Wed, 10 Jun 2026 00:00:00 GMT agentty.org https://agentty.org/blog/implementing-acp-in-cpp/ https://agentty.org/blog/implementing-acp-in-cpp/ Wed, 10 Jun 2026 00:00:00 GMT I wrote the first C++ implementation of the Agent Client Protocol — the thing that lets Zed drive Claude Code and Gemini. Most JSON-RPC libraries hand you stringly-typed blobs and a prayer. acp-cpp treats the protocol as what it actually is: a closed algebra of inductive types, where serialization is a fold over the type's shape and the compiler proves you handled every case. Here's the whole design, from the unit type up to the deferred-reply trick that keeps a single-reader transport from deadlocking mid-turn. noreply@agentty.org (agentty) c++acpprotocoldeep-divedesign https://agentty.org/blog/cpp-design-of-a-terminal-agent/ https://agentty.org/blog/cpp-design-of-a-terminal-agent/ Tue, 09 Jun 2026 00:00:00 GMT An LLM agent loop looks like the worst possible fit for C++ — async, streaming, full of stringly-typed events. It is actually one of the best. Here's how agentty turns the whole app into a closed sum of events, a single std::visit reducer, and a permission matrix the compiler proves correct over all 48 cells. noreply@agentty.org (agentty) c++architecturedeep-divedesign https://agentty.org/blog/why-cpp-coding-agent-50x-faster/ https://agentty.org/blog/why-cpp-coding-agent-50x-faster/ Sun, 07 Jun 2026 00:00:00 GMT claude-code spends ~150 ms and 222 MB of Node just to print its version. agentty is one 9.6 MB binary that does it in ~3 ms. Here's exactly where the time goes, why a coding agent is a surprisingly good fit for C++26, and the numbers you can reproduce yourself. noreply@agentty.org (agentty) performancec++deep-dive https://agentty.org/blog/agentty-0-2-0-zed-acp/ https://agentty.org/blog/agentty-0-2-0-zed-acp/ Sat, 06 Jun 2026 00:00:00 GMT 0.2.0 teaches agentty to speak the Agent Client Protocol, so the same engine that drives the TUI now drives a first-class agent panel inside Zed — streaming text, inline diffs, native permission prompts, and session reload. noreply@agentty.org (agentty) releaseacpzed