A static analyzer for LLM prompts — catches cost waste, quality issues, and security risks. Below are 7 llm eval & observability apps with similar functionality to promptlint-cli, matched by what each product actually does — not ranked or scored. Explore each to find the closest fit for your use case.
promptbench-cli is an open-source command-line tool that enables users to A/B test prompts across various large language model providers directly from their terminal. It supports multiple LLM APIs and is designed for developers and prompt engineers who need to benchmark and compare prompt outputs efficiently. The tool is MIT licensed and easy to install via PyPI.
Static linter for LLM prompt scaffolds — catches oversized scaffolds and incompatible technique mixes (evidential + step-by-step + format).
ESLint for AI prompts. A static analyzer for LLM system prompts, templates, and SDK call sites. Zero LLM calls.
Multi-language code quality scanner — complexity, duplication, security, and smells
prompt-config is an open-source library and CLI tool that enables developers to build and manage dynamic prompts for AI and LLM applications. It provides configurable templates and command-line support for flexible prompt engineering workflows.
PromptEval provides tools for AI developers to lint, evaluate, and regression-test prompts. It integrates with CI pipelines, offers a scoring system across multiple dimensions, and supports versioning and production gating. The platform is designed for teams building and maintaining high-quality AI prompt workflows.
Run clang-format and clang-tidy on a batch of files.
