Score a prompt

Scores an agent's prompt across 11 quality dimensions using Gemini-based analysis. Requires the prompt to have changed since the last scoring. **Input:** Provide exactly one of `versionId` (published agent version) or `draftId` (agent draft). Providing both or neither returns a 400. **Credit usage:** 1 credit is deducted per successful call. **Idempotency:** Re-submitting the same prompt without changes returns a 400 — retrieve the cached score via the GET agent endpoint instead. **Supported agent types:** Only `single_prompt` agents are supported. Workflow-graph agents return a 400. **Scoring model:** Two sequential Gemini calls — a Platform Analyst pass followed by a Rubric Judge pass. ### Scored Dimensions | Tier | Dimension | Notes | |------|-----------|-------| | 1 | Role & Objective | | | 1 | Personality & Voice | | | 1 | Conversation Structure | | | 1 | Tool Integration | | | 1 | Constraints & Safety | | | 2 | Conversational Naturalness | | | 2 | Failure-Mode Coverage | | | 3 | Information Integrity | Gating — if Weak/Missing, score capped at 70 | | 3 | Variable & Tool Hygiene | Gating — if Weak/Missing, score capped at 50 | | 3 | Internal Consistency | | | 3 | Density | Computed from token analysis |