AGENTIC-SYSTEMS PUB_DATE: 2026.01.20

EVALUATING AGENTIC SYSTEMS BEYOND FINAL ANSWERS

A practitioner describes an evaluation framework for multi-agent assistants that goes past final-answer accuracy by adding trajectory-level checks. They curate ...

Evaluating Agentic Systems Beyond Final Answers

A practitioner describes an evaluation framework for multi-agent assistants that goes past final-answer accuracy by adding trajectory-level checks. They curate use-case datasets to run accuracy, hyperparameter sweeps, and ablations, then layer metrics for delegation quality, data-flow fidelity (entity preservation), and resilience to tool failures. This surfaced real issues like stripped URLs and orchestrators masking subagent errors, enabling safer refactors.

[ WHY_IT_MATTERS ]
01.

It turns agent development from trial-and-error into measurable, repeatable engineering.

02.

It catches hidden failures (lost entities, masked tool errors) that final-answer checks miss.

[ WHAT_TO_TEST ]
  • terminal

    Build curated datasets per use case and run final-answer accuracy with ablations and hyperparameter sweeps across model, temperature, and agent configuration.

  • terminal

    Add trajectory assertions for delegation quality, entity preservation across steps, and recovery after tool or API errors.

[ BROWNFIELD_PERSPECTIVE ]

Legacy codebase integration strategies...

  • 01.

    Instrument existing agents to capture full traces and add deterministic assertions without changing business logic.

  • 02.

    Run controlled ablations (e.g., remove vector DB, VLM, or prompt sections) to quantify their impact before and after refactors.

[ GREENFIELD_PERSPECTIVE ]

Fresh architecture paradigms...

  • 01.

    Design an evaluation harness first: ground-truth datasets, trace logging, and idempotent tools with explicit inputs/outputs.

  • 02.

    Decide early on LLM-as-judge vs rule-based checks and codify failure-handling contracts between orchestrator and subagents.

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