tycho-cli is an open-source command-line tool for locally verifying the actions of AI agents. It checks agent claims using data from git, the filesystem, process exit codes, and event streams, ensuring trust without external LLMs or accounts. Designed for AI developers and researchers focused on agent reliability.
In the LLM eval & observability space, tycho-cli takes a focused approach. It focuses on verifying that AI agents performed claimed actions without relying on external LLMs or cloud services. tycho-cli is an open-source project aimed at AI developers and researchers. The project is open source (Apache-2.0). The product ships for the command line, and it can be self-hosted.
It is developed by swail-labs, and the product first shipped in 2026. Among its 5 catalogued features are local verification, git integration, and filesystem checks.
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