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Metrics (Evaluations → Metrics in the left dashboard nav) is a standalone library where a team defines reusable scoring criteria once and attaches them wherever calls or conversations get graded. It’s the same system already introduced in Voice Agent Evaluation: metrics belong to your team, not to a single agent, so a metric you build here is the same metric you can add to a Voice Agent’s Evaluation tab, an Evaluator, or a Scorecard. This page covers the library UI itself — where you create, edit, and delete metrics. For how a metric is scored (Deterministic vs. LLM Judge, the seven deterministic checks, Binary vs. Scale 1-5, speaker scope, score rubrics), see Voice Agent Evaluation — Metric types; that mechanics doesn’t change based on where the metric is used.
One team-wide library, several consumers. A metric created here can be attached to:Editing a metric here changes it everywhere it’s attached — there’s no per-consumer override of a metric’s own definition, only of its weight and threshold within each policy.

Creating a metric

Click New Metric (top right, also shown in the empty state) to open a side panel titled New Metric. Editing an existing metric — click its row — opens the same panel titled Edit Metric. When Type is Deterministic: When Type is LLM Judge: Submit with the button at the bottom of the panel: Create for a new metric, Save Changes when editing.
Use the Type filter above the table (All types / Deterministic / LLM Judge) to check for near-duplicates before creating a new metric — it’s easy to end up with two similarly-named LLM Judge metrics asking almost the same question, which just doubles judge cost without adding signal.

Where metrics get used

Deleting a metric

The row-level delete action opens an AlertDialog titled Delete metric:
This metric will be removed from all evaluators that use it. This action cannot be undone.
Read that literally and it undersells the blast radius: the confirmation copy only mentions evaluators, but the same metric may also be attached to a Voice Agent’s Evaluation policy or a Scorecard. Deletion isn’t scoped to one consumer — if you’re not certain a metric is unused, check its usage on Voice Agents and Scorecards before deleting it, not just in the Evaluators list. There’s no undo.

What’s Next

  • Voice Agent Evaluation — the metric type system in full: deterministic checks, LLM Judge scoring, speaker scope, and how a group’s final score is calculated.
  • Evaluations Overview — how Evaluators, Profiles, Metrics, Scorecards, and Runs fit together.
  • Creating an Evaluator — build a pre-ship test case and attach metrics from this library to it.