Agentlinter is a command-line tool that analyzes agent workflow YAML files. It performs linting for correctness and estimates usage costs across models from providers like Claude, OpenAI, and Ollama. Designed for developers building AI agent systems to catch issues and control expenses early.
agentlinter is a LLM eval & observability product. Validating, linting, and estimating the cost of AI agent workflow definitions before deployment. agentlinter is an open-source project aimed at AI developers and engineers. The project is open source (BSL-1.1). agentlinter is available on the command line.
Behind agentlinter is AreteDriver, and the product first shipped in 2026. The project is developed in the open on GitHub with 22 commits in the last 90 days. Among its 3 catalogued features are Cost Estimation, YAML Linting, and Agent Workflow Validation.
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