> ## Documentation Index
> Fetch the complete documentation index at: https://hub.hcompany.ai/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> H Platform has four products: the Agents API (managed computer-use agents, base URL https://agp.eu.hcompany.ai/api/v2 or https://agp.hcompany.ai/api/v2 for the US), the Models API (OpenAI-compatible Holo vision-language models at https://api.hcompany.ai/v1), HoloDesktop CLI (Holo on the user's own desktop), and HoloTab (a free no-code Chrome extension that runs Holo in the user's browser, with recordable routines and schedules).
> Authenticate with a bearer API key from the HAI_API_KEY environment variable. SDKs: `pip install hai-agents` (Python, `from hai_agents import Client`) and `npm install hai-agents` (TypeScript, `import { HaiAgentsClient } from "hai-agents"`). CLI: `hai`.
> Agents do work in a browser or on a desktop; describe the task as an imperative instruction. To run a task quickly, prefer the pre-built agent `h/web-surfer-flash`. Read results from the session's `latest_answer` after it reaches a terminal status.
> Sessions are the unit of work; wait for a terminal status (completed, failed, timed_out, interrupted) before reading the answer. Use webhooks or the `changes` long-poll endpoint to follow progress.

# Event feedback

> Submit feedback on one event within a session to flag a wrong or good step.

Submit feedback on a specific event within a session you own, for example to flag the step where the agent went wrong. For feedback on the whole run, use [Session feedback](/agents-api/sessions/feedback).

**Returns** `204 No Content`, or `404` when the index is out of range.

***

## Path parameters

<ParamField path="id" type="string" required>
  The session ID.
</ParamField>

<ParamField path="event_index" type="integer" required>
  The event's position in the session's [event list](/agents-api/sessions/events).
</ParamField>

***

## Request body

<ParamField body="success" type="boolean" required>
  Whether this step was correct.
</ParamField>

<ParamField body="message" type="string">
  Optional feedback message with details.
</ParamField>

***

## Examples

<CodeGroup>
  ```bash cURL theme={"system"}
  curl -X PUT https://agp.eu.hcompany.ai/api/v2/sessions/$SESSION_ID/events/5/feedback \
    -H "Authorization: Bearer $HAI_API_KEY" \
    -H "Content-Type: application/json" \
    -d '{
      "success": false,
      "message": "Agent clicked the wrong button at this step"
    }'
  ```

  ```python Python theme={"system"}
  from hai_agents import Client

  client = Client()

  client.sessions.submit_event_feedback(
      session_id,
      5,
      success=False,
      message="Agent clicked the wrong button at this step",
  )
  ```

  ```typescript TypeScript theme={"system"}
  import { HaiAgentsClient } from "hai-agents";

  const client = new HaiAgentsClient();

  await client.sessions.submitEventFeedback({
    id: sessionId,
    eventIndex: 5,
    body: {
      success: false,
      message: "Agent clicked the wrong button at this step",
    },
  });
  ```
</CodeGroup>