Tracing
Every agent run captured as a replayable trace — prompts, tool calls, retrievals and outputs, linked to the user and the model version.
of agent runs captured and replayable
100%
Layer
Observe
The problem
An agent that calls tools makes dozens of decisions per request. When one goes wrong, logs tell you that it failed — not why, or which prompt, document or tool response caused it.
What Signa does
Our SDK wraps your agent framework in two lines and records every step as a span: inputs, outputs, latency, tokens, cost and the exact model and prompt version.
Any trace can be replayed against a new model or prompt, so you can see what would have happened before you change anything in production.
Built for regulated teams
Traces stay in your cloud, PII is redacted at capture, and every span is retained on a schedule your data-protection officer sets.