Glossary
Trajectory
A trajectory is the ordered record of an agent run: thoughts or decisions, tool calls, observations, and outcomes.
Trajectory: A trajectory is the ordered record of an agent run: thoughts or decisions, tool calls, observations, and outcomes.
Definition
A trajectory is the ordered trace of an agent run: decisions, tool calls, observations, escalations, and outcomes.
Why it matters
Trajectories power debugging, evaluation, and auditability. Without them, agent failures are hard to diagnose.
See also
Related reading
Agent Evaluation: How to Measure Reliability, Cost, and Success
A practical framework for evaluating agentic systems: task success, trajectories, tool correctness, cost, latency, and regression suites.
Observability for AI Agents
What to log and monitor in agentic systems: trajectories, tool I/O, costs, outcomes, and replay for debugging.