User Guide

Evaluation Studio is for running structured chat tests, reviewing other testers’ chats, and recording ratings with short evidence-based notes. Skim the headings, then follow the step-by-step lists.

Quick start (2 minutes) fastest path

If you only do one thing: capture a realistic prompt, then leave a short rating with evidence.

  1. Log in: use a Cognito user that is authorized for Eval Studio.
  2. Open Chat: send a realistic prompt that matches a real user goal.
  3. Rate the assistant response: click Rate this response and add 1–3 sentences of evidence-based feedback.
  4. Optional: if the issue spans multiple turns, also click Rate this chat.

Image placeholder: “Where to rate” screenshot

Drop a screenshot showing the “Rate this response” button and “Rate this chat” toolbar button.

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Chat create sessions rate responses

Use Chat to create sessions, explore behavior, and record ratings.

  1. Start a new chat: click New Chat (left sidebar) to reset the thread.
  2. Pick a speed tier: choose Fast / Medium / Slow before sending.
  3. Send a message: type in the input box and click Send (or press Enter).
  4. Inspect workflow when needed: toggle Show workflow to show/hide intermediate steps under assistant messages.
  5. Rate a response (message-level): under an assistant message, click Rate this response (becomes Edit the response after rating).
  6. Rate the whole chat (session-level): click Rate this chat in the toolbar.
Tip: keep workflow off while reading; turn it on only when you need evidence (tool calls, plan, retrieval, etc.).

Image placeholder: Chat layout

Drop a screenshot showing: workflow toggle, message rating button, and session rating button.

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Peer Review read full context rate responsibly

Use Peer Review to rate chats created by other testers.

  1. Open Peer Review: go to Peer Review to see assistant messages from other testers.
  2. Filter: use Unrated only to focus on new work; filter by Models and Users when investigating specific behavior.
  3. Open a session: click a list item to open the full thread.
  4. Show workflow: in detail view, toggle Show workflow to reveal intermediate steps under assistant turns.
  5. Rate responses: use Rate this response / Edit the response on assistant messages in the thread.
  6. Rate the chat: use Rate this chat in the header to rate the overall session.

Image placeholder: Peer review detail

Drop a screenshot showing the workflow toggle and rating buttons inside the thread + header.

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How ratings work clear definitions

Use the numeric scores for quick signal, and the text box for evidence.

  • Safety: mark Unsafe when the assistant gives harmful instructions, violates privacy, or mishandles sensitive situations.
  • Usefulness (1–5): how actionable and complete the response is for the user’s goal.
  • Correctness (1–5): factual and logical accuracy. If something is wrong, describe what is wrong and what should be true.
  • Textual feedback: add evidence and a better alternative in a short note.

Response vs chat rating (what to use when)

  • Rate a response when a single assistant message is clearly good/bad on its own.
  • Rate a chat when the issue is only visible across turns (context drift, contradictions, repeated mistakes, failure to follow constraints).
  • Do both when you want to capture a specific bad response and also the overall session quality.

Feedback template (easy + short) copy/paste

If you’re not sure what to write, follow this structure.

  • What happened: “The assistant said: ‘…’”
  • Why it’s a problem: “This is unsafe/incorrect because …”
  • Better response: “It should instead …”

Image placeholder: Rating modal

Drop a screenshot of the rating modal and highlight where to put evidence.

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Troubleshooting quick checks

  • Rate this chat button does nothing: confirm the page URL includes sessionId=.... If the API call fails, an error message will appear above the thread.
  • No workflow shown: workflow only appears when intermediate steps were captured for that assistant turn. Toggle Show workflow on.
  • Model tier confusion: Fast/Medium/Slow map to backend defaults unless env vars override them.