Sessions

A session is one complete run of your agent. The Sessions page lists all sessions across all agents.

Session list

Each session shows:

• Status badge: running, completed, failed, or timed out
• Agent name
• Failure type: if a failure was detected, the category is shown
• Cost: total LLM spend for this session
• Duration
• Start time

Session detail page

Click any session to see a full breakdown:

Event timeline

Every LLM call, tool call, and error in order. Each event shows:

• Step number
• Event type (LLM call, tool call, error, session start/end)
• Input and output (truncated for display)
• Timestamp

Classification

If a failure was detected, the classification is shown with:

• Category (e.g., Hallucination, Cost anomaly)
• Subcategory
• Severity
• Reason: a plain-language explanation of why the failure was classified this way

Inspector results

If any inspectors were run on this session, their results are shown here. Each inspector result includes the pass/fail verdict, score, and explanation.

Filtering sessions

Use the filter bar at the top of the Sessions page to filter by:

• Agent
• Status
• Failure type
• Date range

Session retention

Sessions and their events are stored indefinitely unless you delete them manually.