agent-c
# Agent-C An ultra-lightweight AI agent written in C that communicates with OpenRouter API and executes shell commands.  ## Features - **Zero Dependencies**: No curl, no libssl — native TLS via macOS SecureTransport - **Tool Calling**: OpenAI-compatible `tools` API for shell command execution - **Streaming**: Tokens print as they arrive via SSE - **~4KB binary**: Single file (`agent.c`), LZMA self-extracting archive - **Conversation Memory**: Sliding window of 20 messages with tool call history - **Cross-Platform**: macOS and Linux ## Quick Start ```bash export OR_KEY=your_openrouter_api_key make ./agent-c ``` ## Build ```bash make # auto-detect platform make macos # macOS with LZMA compression make linux # Linux with UPX compression make clean # remove build artifacts ``` ## How It Works The agent connects to OpenRouter, sends messages with a `sh` tool definition, and streams the response. When the model returns a `tool_calls` response, the agent executes the command, sends the result back, and gets a follow-up response. Up to 5 tool calls per turn. See [SPEC.md](SPEC.md) for full architecture and test cases. ## License **CC0 — No Rights Reserved**