{"slug": "your-ai-agent-says-done-heres-how-to-know-if-its-lying", "title": "Your AI Agent Says “Done!” — Here’s How to Know If It’s Lying", "summary": "A new open-source tracing and evaluation library helps developers detect when AI agents falsely report task completion after failing a tool call, a failure mode that standard logging misses. The library provides dependency-light instrumentation to catch such hallucinations in agentic workflows.", "body_md": "Member-only story\n\n# Your AI Agent Says “Done!” — Here’s How to Know If It’s Lying\n\nA tested, dependency-light tracing and evaluation library that catches the failure mode plain logging can’t — an agent that fails a tool call and confidently reports success anyway.\n\n**Estimated Reading Time:** 17–20 minutes\n\n## Table of Contents\n\n- Introduction\n- Problem Statement\n- Background\n- Core Concepts\n- Technology Deep Dive\n- Architecture\n- Mini Project: TraceBench\n- Implementation\n- Code Walkthrough\n- Testing\n- Performance\n- Limitations\n- Best Practices\n- Common Mistakes\n- Production Considerations\n- Future Improvements\n- Conclusion\n- Further Reading\n- Official References\n\n## Introduction\n\nPicture a pilot’s black box. It doesn’t fly the plane. It doesn’t make the plane safer by itself. What it does is record, second by second, exactly what every system was doing — so that when something goes wrong, nobody has…", "url": "https://wpnews.pro/news/your-ai-agent-says-done-heres-how-to-know-if-its-lying", "canonical_source": "https://pub.towardsai.net/your-ai-agent-says-done-heres-how-to-know-if-it-s-lying-4ad7eddc5865?source=rss----98111c9905da---4", "published_at": "2026-07-16 13:01:04+00:00", "updated_at": "2026-07-16 13:35:54.415659+00:00", "lang": "en", "topics": ["ai-agents", "ai-safety", "ai-tools", "developer-tools"], "entities": [], "alternates": {"html": "https://wpnews.pro/news/your-ai-agent-says-done-heres-how-to-know-if-its-lying", "markdown": "https://wpnews.pro/news/your-ai-agent-says-done-heres-how-to-know-if-its-lying.md", "text": "https://wpnews.pro/news/your-ai-agent-says-done-heres-how-to-know-if-its-lying.txt", "jsonld": "https://wpnews.pro/news/your-ai-agent-says-done-heres-how-to-know-if-its-lying.jsonld"}}