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Evaluation engineering

AI Agent Evaluation Framework

Evaluate AI agents with deterministic checks, semantic judgment, trajectory integrity, security controls and evidence-backed release gates.

A single quality score cannot establish that an AI agent behaved correctly. Shyena separates observable facts, semantic behaviour, execution integrity and security into explicit evaluation layers.

01

Deterministic evaluation

Validate exact facts that should never be delegated to probabilistic judgment: business rules, authorization, required states, tool calls and invariants.

  • Exact assertions
  • Expected state validation
  • Policy and business-rule gates
02

Semantic evaluation

Use LLM-based judgment where interpretation is required, while preserving the input evidence, criterion, score, threshold and reasoning used by the evaluator.

  • Answer relevance
  • Business usefulness
  • Conversation quality
03

Trajectory integrity

Evaluate whether the system took an acceptable path to the intended outcome, including tool use, routing, handoffs, loops and termination.

  • Expected route
  • Unexpected tool invocation detection
  • No premature termination
04

Security as a gate

Security findings become part of the release evidence chain rather than a detached security report.

  • Trust-boundary testing
  • Adversarial campaigns
  • Verified release controls

Frequently asked questions

What should an AI agent evaluation measure?

It should measure the dimensions relevant to the system: deterministic business correctness, semantic quality, execution integrity, security and the evidence required to support the release decision.

Is LLM-as-a-judge enough for AI evaluation?

No. Semantic judgment is useful for interpretation, but deterministic facts, execution integrity and security boundaries require explicit controls.

Can evaluation results become release gates?

Yes. Evaluation signals can be combined into governed release gates with evidence attached to each decision.

See the assurance model against a real AI system.

Bring one business journey and see how Shyena maps, tests, evaluates, secures and connects the evidence to release decisions.

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