Debug your AI Agents
Locally with Code Context

Zero-config tracing for AI Agents. Visualize traces, fix prompts, and replay loops directly in your editor. Stop uploading sensitive prompts to the cloud.

Tired of debugging in the dark?

Debugging agents is hard. Stop wrestling with logs and black boxes.

The "Black Box"

Why did it choose that tool? Why did the prompt fail? Without visibility into the agent's internal thought process, you're flying blind.

Reproducing is Hell

Agents are non-deterministic. If you can't replay the exact state and context where it failed, you're just guessing at the fix.

Inspect the Thought Process

Syncause hooks into the runtime of your agent framework (LangChain, CrewAI, AutoGen) and visualizes the execution graph in real-time.

Visual Trace Timeline

See every tool call, thought, and state change in a chronological timeline. Identify exactly where the logic diverged.

Live Action Replay

Rewind to any step in the trace. Modify the prompt or context, and replay from that point to test a fix instantly.

Context Diffing

Compare the context window between successful and failed runs to spot the pollution or missing info.

Don't just see the prompts. See your code context.

Why did the Agent say that? Syncause captures the local variables at the moment of execution.

Debug variables, not just prompts

Did the prompt template fail to render? Was the RAG context empty? See the runtime values right next to your code.

const prompt = `Answer this: ${user_input}`;
await agent.run(prompt);

Captured Variables

user_input="undefined"Undefined

Your localhost, your secrets

PII, API Keys, and proprietary prompts never leave your machine.

AI Agents

Running locally or via API

↓

SECURE ZONE

Local Storage

Traces stored on disk

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Cloud

No data upload

BLOCKED

Logs vs. Cloud vs. Syncause

We built Syncause because we hate print debugging as much as you do.

The Old Way (Print)	The Cloud Way (SaaS)	The Syncause Way
Terminal Chaos Scrolling through thousands of lines of raw JSON text.	Setup Fatigue Requires API keys, endpoints, and code changes.	Zero Config Auto-instrumentation. Since it runs locally, you just run your script.
Result: Headaches	Result: 15 mins setup	Result: Instant visibility

Ready to see what your Agent is thinking?

Works with LangChain, CrewAI, AutoGen, and custom Python agents.

Debug your AI Agents Locally with Code Context