aptu

Aptu (AI-Powered Triage Utility) is an open-source CLI and GitHub Action that automates common GitHub workflows using AI. It focuses on context engineering: instead of relying on large, expensive models, it crafts precise prompts that allow smaller models to achieve high accuracy with fewer tokens. This results in significantly lower cost and latency compared to raw API calls to large models like Claude Opus. Key capabilities include: - **Issue Triage**: Automatically summarizes issues, suggests labels, asks clarifying questions, and provides guidance to contributors. - **Issue Discovery**: Finds good-first-issues from curated repositories. - **PR Analysis**: Reviews pull requests, provides feedback, and can even create PRs from diffs. - **Security Scanning**: Built-in local security pattern detection for PR reviews; no code is sent externally. - **GitHub Action**: Auto-triage incoming issues with labels and comments. - **Multiple AI Providers**: Supports Anthropic, Cerebras, Gemini, Groq, OpenRouter (default), Z.AI, and ZenMux. - **Customizable Prompts**: Override system prompts per operation or append custom guidance. - **Observability**: Outputs context and token usage metrics for debugging. - **Multiple Output Formats**: Text, JSON, YAML, Markdown, and SARIF. Aptu is written in Rust and is available via Homebrew, Cargo, or as a GitHub Action. It is licensed under Apache-2.0 and follows best practices for security (SLSA Level 3, OpenSSF Best Practices).