The Multiplayer debugging agent is purpose-built for developers working with coding agents. It captures all the data observability tools miss and manages the whole process from bug identified to bug fixed.
Custom logging can technically capture everything, but in practice, it rarely does. Coverage degrades over time, external APIs get forgotten, and during incidents, you're left asking "did anyone log this?" instead of debugging. Automatic capture solves this.
There's a common belief in the observability space: if you just collect more data, you'll have what you need to debug any issue. The reality is more frustrating: even with 100% unsampled observability, you're still missing critical debugging data.
Better specs and clearer task decomposition are a significant step forward. But specs and plans describe intentions. What AI agents also need is visibility into what systems actually do at runtime.
The next generation of debugging doesn’t depend exclusively on the quality of AI models, but it’s heavily dependent on feeding AI tools the context they need to be useful.
In 2025 we focused on a simple but ambitious goal: making debugging faster, less fragmented and less manual. Check out all our releases to make that possible.
LogRocket captures frontend behavior with optional sampled backend data through third-party integrations. Multiplayer captures complete, unsampled full-stack sessions (frontend and backend) out of the box, with no integrations required.
Mixpanel shows you how users behave on your frontend, aggregating website performance metrics. Multiplayer shows how your system behaves, from user actions to backend traces, and how to fix a bug (or have your AI coding assistant do it for you).
PostHog is a product analytics platform with frontend-only session replay. Multiplayer is purpose-built for debugging with full-stack session recordings, from user actions to backend traces, showing you how to fix a bug (or have your AI coding assistant do it for you).
Fullstory shows you how users behave on your website, aggregating performance metrics. Multiplayer shows how your system behaves, from user actions to backend traces, and how to fix a bug (or have your AI coding assistant do it for you).
Annotations are a way to draw, write, and comment directly on top of full-stack session recordings. Now, instead of sketching ideas in isolation, teams can mark up actual user sessions, highlighting specific UI elements, API calls, and backend traces that need attention.
Most modern software systems are distributed systems, but designing a distributed system isn’t easy. Here are six best practices to get you started.