Test what the agent does when the world changes around it.
Construct cases and worlds that expose dependencies, changing state, and incomplete evidence. Judge the agent’s decisions across a trajectory, including the consequences of its actions.
For teams developing agents for customer support, logistics, airline operations, and enterprise software
An operational agent must connect what it knows with what it can do. A tool response can change the plan. Availability can disappear between recommendation and confirmation. An attempted action can fail or leave partial state. Static questions often leave these distinctions untested.
Engineering practice · These are development and assessment methods, not reported customer results.
01
The world changes between planning and execution
The context
The agent finds a feasible option, but the state changes before the action completes. Its earlier reasoning can remain coherent while its next action becomes invalid.
Judgment to capture
When must the agent recheck state, revise the plan, or seek confirmation?
02
An action returns an ambiguous result
The context
A tool times out or reports a partial result. Repeating the action may create an unwanted duplicate, while announcing success may mislead the user.
Judgment to capture
Which evidence establishes completion, and what should the agent do while the outcome remains unresolved?
03
Each action looks valid, but the sequence is wrong
The context
An action satisfies its local preconditions yet makes a later dependency impossible or crosses the authority intended for the overall task.
Judgment to capture
Which relationships and constraints must hold across the trajectory, rather than at an individual step?
The people behind the standard
Turn operational experience into trajectory criteria.
Agents prepare trajectory reviews and comparisons of alternative actions. Experts explain which observation justified the next step and what would have changed it. Follow-up forms, chat, or interviews clarify the dependencies a final-answer rating can miss.
Operational experts
The dependencies, evidence, exceptions, and recovery decisions that determine a viable outcome.
AI and integration engineers
Available tools, state transitions, execution boundaries, and what the trial environment can represent.
Coverage and improvement
Make world construction serve a behavioral question.
Define the operational dependency the world must expose. Its initial state, tool behavior, and possible changes should make that dependency observable to the agent and assessable in the recorded trial.
Ontology dimensions
User intent, initial state, available tools, outcome certainty, dependencies, and changes during execution.
Combinations to exercise
An option becomes unavailable; an action returns a partial or ambiguous result; a locally valid step prevents completion of the wider task.
Interpreting the case mix
Keep common trajectories and deliberate stress conditions distinguishable. Assess failure mechanisms within the behavior the world actually represents.
Expert findings become rubrics for evidence, commitments, confirmation, and recovery. Distinguish requirements visible in the final response from those that need recorded execution evidence.
What this makes possible
A standard for the decision at the time it was made, including the uncertainty that should have remained visible.
Coverage selects ontology tuples for initial conditions and consequential changes. Weave supplies the materials, state, and scoped tool behavior needed to exercise them within the agreed runtime.
What this makes possible
An environment in which the intended dependency can actually affect the agent’s next action.
Trialground executes the harness and applies response or trajectory rubrics. Inspect which observations were available, how tool results were interpreted, and what the agent claimed to have completed.
What this makes possible
Evidence that separates a justified action, an unresolved operation, and a completion claim unsupported by the recorded result.
Improve how the harness responds to changing state
Coevolve can test prototype changes to evidence gathering, state handling, tool orchestration, and recovery. Compare them against the intended gain and the behavior the benchmark requires preserving.
What this makes possible
A candidate supported by experiments across the represented transitions, with limitations in the world’s scope still explicit.
Production interactions can reveal new intents, state combinations, and recovery paths for coverage updates. Use them to refine the next offline trial environment while retaining the distinction between simulated behavior and live operational outcomes.
Assessing progress
Judge the decision against the state the agent could observe.
Use of authoritative evidence before consequential actions.
Recognition of changed or incomplete state.
Preservation of dependencies across the action sequence.
Accurate interpretation of tool outcomes and completion status.
Appropriate recovery, revalidation, and handoff.
Review the environment with the result. An overly helpful tool, an omitted dependency, or unavailable evidence silently supplied by the test can make the world easier than the work it is meant to represent. The assessment is meaningful only within those modeled conditions.
Compare candidates on the same world and evaluation basis. Examine revalidation, recovery, and completion claims by the transitions involved. A higher average can still conceal a regression on ambiguous action outcomes or a consequential dependency.