Lightning-Fast 1ms Startup with C++26! Meet the Ultimate Agent ‘Agentty’, Compatible with Claude Code!

What Happened? Overview of the News

• Super Lightweight Implementation with C++26: The AI pair programming tool “Agentty” has been launched, running on just an 11.0 MB static binary without requiring any runtimes like Node.js or Python.
• Incredible Startup Speed and Versatility: With a cold start time of under 1ms, this tool is designed for speed. Utilizing Claude Pro/Max subscriptions and API keys, it can seamlessly switch between models like GPT-4o, Groq (llama-3.3-70b), and local Ollama (qwen2.5-coder) in real-time.
• Security-Focused Design: By default, it operates within a sandbox environment (bwrap for Linux, sandbox-exec for macOS), with robust file operation safeguards that prevent access to the workspace outside.

Why Is This Important? Key Points to Note

• A Complete Alternative to “Claude Code”: Supporting ACP (Agent Client Protocol), which is also used in editors like Zed, it allows for the reuse of existing agent skill mechanisms, a truly groundbreaking feature.
• Support for Air-Gapped Environments: Even machines that aren’t connected to the internet can utilize AI through a special mode where a laptop acts as a relay over SSH, securely using TLS.
• Interactive Code Execution: Code blocks suggested by the AI can be executed instantly with the ^G key, allowing for a seamless experience where execution results can be directly attached to the composer for subsequent instructions.

🦈 Shark’s Eye (Curator’s Perspective)

Don’t be fooled into thinking “Agentty” is just a lightweight tool! Built on the cutting-edge C++26 standard and designed with a purely functional update loop architecture, it’s practically a work of art. Packed into that 11MB binary are a rich TUI, complex sandbox controls, and “Agent Skills” that learn the codebase—it’s a powerful counterargument to the clunky AI tools we’ve been used to! For developers plagued by the cumbersome dependencies of Node.js, the razor-sharp 1ms startup speed is a game-changer you won’t want to go back from. With strict password limitations, this is a “real tool” that should be brought into professional environments!

What’s Next?

AI agents are transitioning from being part of massive platforms to being integrated as “lightweight OS components.” We can expect more ACP-compatible tools like Agentty to emerge, making top-tier AI pair programming commonplace—even in the most resource-constrained environments!

A Word from Haru-Same

“Blazing fast, lightweight, and secure”! This is the ultimate tool that operates as efficiently as a shark swimming through water! Install it now and transform your terminal into an AI command center! 🦈🔥

Glossary

• C++26: The 2026 version of the C++ language standard, enabling the use of the latest language features for more efficient and secure coding practices.

• ACP (Agent Client Protocol): A common standard for communication between editors and AI agents, allowing for flexible integration of tools without being tied to specific AI models.

• Air-gapped: An environment that is physically and logically isolated from external networks, typically used in high-security military and research contexts.

• Source: Agentty – A drop-in alternative to claude-code, written in C++26