Evaluation and Tracking for LLM Experiments and AI Agents
TruLens is an open-source system for tracing and evaluating LLM applications and AI agents. It records each step's inputs, outputs, latency, tokens, and cost, then uses evaluations to find failures and compare application versions.
Latest release trulens-2.16.0 — TruLens 2.16.0 · 19 Oct 2026
1 file for Codex and OpenCode: trulens AGENTS.md — 2,876 tokens loaded in every session.
AGENTS.md A 2,876 tok These files are truera/trulens's own configuration — they tell Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.