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

# Get run event summary

> Count a run's events without payloads, as REST GET /runs/{run_id}/events/summary: totals, error counts, counts by class and type, and a time histogram.

export const McpToolCall = ({tool, initialArguments = {}, requiresConfirmation = false}) => {
  const validateCall = function validateReferenceToolCall(token, text, requiresConfirmation, confirmed) {
    if (!token.trim()) return {
      error: "Paste a bearer token first."
    };
    let value;
    try {
      value = JSON.parse(text.trim() || "{}");
    } catch {
      return {
        error: "Arguments must be valid JSON."
      };
    }
    if (!value || typeof value !== "object" || Array.isArray(value)) return {
      error: "Arguments must be a JSON object."
    };
    if (requiresConfirmation && !confirmed) return {
      error: "Confirm the tool call before running it."
    };
    return {
      arguments: value
    };
  };
  const endpoint = "https://api.veryfront.com/mcp";
  const tokenStorageKey = 'veryfront.docs.mcpBearerToken';
  const escapeHtml = value => value.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
  const highlightJson = value => {
    const escaped = escapeHtml(value);
    return escaped.replace(/("(?:\\u[a-fA-F0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\btrue\b|\bfalse\b|\bnull\b|-?\d+(?:\.\d+)?(?:[eE][+\-]?\d+)?)/g, match => {
      let color = '#f3f4f6';
      if (match.endsWith(':')) {
        color = '#7dd3fc';
      } else if (match.startsWith('"')) {
        color = '#86efac';
      } else if ((/true|false/).test(match)) {
        color = '#c4b5fd';
      } else if ((/null/).test(match)) {
        color = '#fcd34d';
      } else {
        color = '#67e8f9';
      }
      return `<span style="color: ${color}">${match}</span>`;
    });
  };
  const expandJsonStrings = value => {
    if (typeof value === 'string') {
      const trimmed = value.trim();
      if (trimmed.startsWith('{') && trimmed.endsWith('}') || trimmed.startsWith('[') && trimmed.endsWith(']')) {
        try {
          return expandJsonStrings(JSON.parse(trimmed));
        } catch {}
      }
      return value;
    }
    if (Array.isArray(value)) {
      return value.map(expandJsonStrings);
    }
    if (value && typeof value === 'object') {
      return Object.fromEntries(Object.entries(value).map(([key, nestedValue]) => [key, expandJsonStrings(nestedValue)]));
    }
    return value;
  };
  const formatJson = value => {
    try {
      return JSON.stringify(expandJsonStrings(value), null, 2);
    } catch {
      return String(value);
    }
  };
  const formatResponseText = text => {
    const trimmed = text.trim();
    if (!trimmed) return 'No response body.';
    try {
      return formatJson(JSON.parse(trimmed));
    } catch {}
    const ssePayloads = trimmed.split(/\n\n+/).flatMap(chunk => chunk.split('\n').filter(line => line.startsWith('data:')).map(line => line.slice(5).trim()).filter(Boolean));
    for (let index = ssePayloads.length - 1; index >= 0; index -= 1) {
      try {
        return formatJson(JSON.parse(ssePayloads[index]));
      } catch {}
    }
    return trimmed;
  };
  const readStoredToken = () => {
    if (typeof window === 'undefined') return '';
    try {
      return window.sessionStorage.getItem(tokenStorageKey) || '';
    } catch {
      return '';
    }
  };
  const writeStoredToken = value => {
    if (typeof window === 'undefined') return;
    try {
      if (value) {
        window.sessionStorage.setItem(tokenStorageKey, value);
      } else {
        window.sessionStorage.removeItem(tokenStorageKey);
      }
    } catch {}
  };
  const [token, setToken] = useState(readStoredToken);
  const [argumentText, setArgumentText] = useState(formatJson(initialArguments));
  const [status, setStatus] = useState('Ready');
  const [response, setResponse] = useState('No response yet.');
  const [copied, setCopied] = useState(false);
  const [confirmed, setConfirmed] = useState(false);
  const callTool = async () => {
    const validation = validateCall(token, argumentText, requiresConfirmation, confirmed);
    if (('error' in validation)) {
      setStatus(validation.error);
      return;
    }
    const parsedArguments = validation.arguments;
    setConfirmed(false);
    const body = {
      jsonrpc: '2.0',
      id: Date.now(),
      method: 'tools/call',
      params: {
        name: tool,
        arguments: parsedArguments
      }
    };
    setStatus('Calling tool...');
    setResponse(formatJson(body));
    try {
      const result = await fetch(endpoint, {
        method: 'POST',
        headers: {
          accept: 'application/json, text/event-stream',
          'content-type': 'application/json',
          authorization: `Bearer ${token.trim()}`,
          'x-veryfront-origin': 'docs-mcp-tool-page'
        },
        body: JSON.stringify(body)
      });
      const text = await result.text();
      setStatus(result.ok ? 'Response received.' : `Request failed with HTTP ${result.status}.`);
      setResponse(formatResponseText(text));
    } catch (error) {
      setStatus('Request failed.');
      setResponse(error instanceof Error ? error.message : String(error));
    }
  };
  const copyResponse = async () => {
    try {
      await navigator.clipboard.writeText(response);
      setCopied(true);
      setTimeout(() => setCopied(false), 1500);
    } catch {
      setStatus('Copy failed.');
    }
  };
  return <details className="api-try-operation not-prose">
    <summary>Try this tool</summary>
    <p>Replace sample arguments with values for your project or connected account. Calls run only when you select Run tool.</p>
    <div className="api-request-playground not-prose my-6 rounded-xl border border-gray-200 bg-white p-4 dark:border-gray-800 dark:bg-gray-950">
      <div className="mb-4">
        <div className="text-sm font-semibold text-gray-900 dark:text-gray-100">MCP tool call</div>
        <div className="mt-1 text-sm text-gray-600 dark:text-gray-400">
          Call <code>{tool}</code> against the Veryfront MCP endpoint.
        </div>
      </div>

      <label className="mb-2 block text-sm font-medium text-gray-900 dark:text-gray-100" htmlFor={`${tool}-token`}>
        Bearer token or API key
      </label>
      <input id={`${tool}-token`} className="mb-4 w-full rounded-md border border-gray-300 bg-white px-3 py-2 text-sm text-gray-900 dark:border-gray-700 dark:bg-gray-900 dark:text-gray-100" type="password" value={token} onChange={event => {
    const value = event.target.value;
    setToken(value);
    setConfirmed(false);
    writeStoredToken(value);
  }} placeholder="Paste API key or JWT" />

      <label className="mb-2 block text-sm font-medium text-gray-900 dark:text-gray-100" htmlFor={`${tool}-arguments`}>
        Arguments (JSON)
      </label>
      <textarea id={`${tool}-arguments`} className="mb-4 min-h-40 w-full rounded-md border border-gray-300 bg-white px-3 py-2 font-mono text-sm text-gray-900 dark:border-gray-700 dark:bg-gray-900 dark:text-gray-100" value={argumentText} onChange={event => {
    setArgumentText(event.target.value);
    setConfirmed(false);
  }} spellCheck={false} />

      {requiresConfirmation && <label className="api-request-confirmation mb-4 flex items-start gap-2 text-sm">
        <input type="checkbox" checked={confirmed} onChange={event => setConfirmed(event.target.checked)} />
        <span>{tool === 'veryfront__set_project_inference_policy' ? 'Replace the project inference policy with these arguments. Omitted constraints will be removed.' : 'Run this tool with these arguments.'}</span>
      </label>}
      <button disabled={status === 'Calling tool...' || requiresConfirmation && !confirmed} className="disabled:opacity-50 disabled:cursor-not-allowed rounded-md bg-gray-900 px-3 py-2 text-sm font-medium text-white hover:bg-gray-700 dark:bg-gray-100 dark:text-gray-950 dark:hover:bg-gray-300" type="button" onClick={callTool}>
        Run tool
      </button>

      <div className="mt-4 text-sm font-medium text-gray-900 dark:text-gray-100">{status}</div>
      <div className="mt-3 overflow-hidden rounded-md border border-gray-300 dark:border-gray-700">
        <div className="flex items-center justify-between bg-gray-100 px-3 py-2 text-sm font-medium text-gray-900 dark:bg-gray-900 dark:text-gray-100">
          <span>Output JSON</span>
          <button className="rounded border border-gray-300 bg-white px-2 py-1 text-xs text-gray-900 hover:bg-gray-50 dark:border-gray-700 dark:bg-gray-950 dark:text-gray-100 dark:hover:bg-gray-800" type="button" onClick={copyResponse}>
            {copied ? 'Copied' : 'Copy'}
          </button>
        </div>
      <pre className="max-h-96 overflow-auto whitespace-pre-wrap break-words bg-gray-950 p-4 text-sm text-gray-100">
        <code dangerouslySetInnerHTML={{
    __html: highlightJson(response)
  }} />
      </pre>
      </div>
    </div>
    </details>;
};

<div className="api-operation-signature">
  `veryfront__get_run_event_summary`
</div>

Takes the same filters as [`list_run_events`](/docs/cloud/mcp/tools/list-run-events).

## Access

No external-service connection is required. Use a Veryfront credential with access to the requested resources.

**Call type:** Read-only.

## Arguments

| Field | Type | Required | Description and constraints |
| - | - | - | - |
| `run_id` | `string` | Yes | Public run id, as returned by REST GET /runs/\{`run_id`}. Minimum length: `1`. |
| `buckets` | `integer` | No | Time buckets, 1-500 (default 60). |
| `event_class` | `string` | No | Only events of this class (fact or delta), as on REST GET /runs/\{`run_id`}/events. |
| `event_type` | `string or string[]` | No | Only events of these canonical types, as on REST GET /runs/\{`run_id`}/events. |
| `is_error` | `boolean` | No | true: only error events; false: only other events. |
| `start` | `string` | No | Only events created at or after this ISO 8601 instant, as on REST GET /runs/\{`run_id`}/events. |
| `end` | `string` | No | Only events created before this ISO 8601 instant, as on REST GET /runs/\{`run_id`}/events. |
| `span_id` | `string` | No | Only events with this envelope `span_id`, as on REST GET /runs/\{`run_id`}/events. |
| `turn_id` | `string` | No | Only events with this envelope `turn_id`, as on REST GET /runs/\{`run_id`}/events. |
| `search` | `string` | No | Case-insensitive payload substring, as on REST GET /runs/\{`run_id`}/events. |
| `include_descendants` | `boolean` | No | Also include events of readable descendant runs, as on REST GET /runs/\{`run_id`}/events. |

## Example request

Send this JSON-RPC request through an initialized MCP client. Replace sample identifiers and values before calling the tool. See [MCP client setup](/docs/cloud/getting-started/connect-mcp).

```json title="request.json" theme={null}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "veryfront__get_run_event_summary",
    "arguments": {
      "run_id": "example"
    }
  }
}
```

## Result

The published output shape is summarized below. Inspect both the MCP response content and `isError` when handling a call.

| Field | Type | Required | Description and constraints |
| - | - | - | - |
| `run_id` | `string` | Yes | Run identifier associated with this result. Minimum length: `1`. |
| `total` | `integer` | Yes | Minimum: `0`. |
| `error_count` | `integer` | Yes | The error count returned by the tool. |
| `first_event_id` | `integer or null` | Yes | |
| `last_event_id` | `integer or null` | Yes | |
| `first_event_at` | `string or null` | Yes | |
| `last_event_at` | `string or null` | Yes | |
| `by_event_class` | `object` | Yes | Structured by event class details associated with this tool result. |
| `by_event_type` | `object[]` | Yes | List of by event type associated with this tool result. |
| `buckets` | `object[]` | Yes | List of buckets associated with this tool result. |

## Full schemas

<CodeGroup>
  ```json title="input-schema.json" theme={null}
  {
    "type": "object",
    "properties": {
      "run_id": {
        "type": "string",
        "minLength": 1,
        "description": "Public run id, as returned by REST GET /runs/{run_id}."
      },
      "buckets": {
        "type": "integer",
        "description": "Time buckets, 1-500 (default 60)."
      },
      "event_class": {
        "type": "string",
        "description": "Only events of this class (fact or delta), as on REST GET /runs/{run_id}/events."
      },
      "event_type": {
        "anyOf": [
          {
            "type": "string",
            "description": "Provide the option 1."
          },
          {
            "type": "array",
            "items": {
              "type": "string",
              "description": "One option 2 item supplied to the tool."
            },
            "description": "Provide one or more option 2 values."
          }
        ],
        "description": "Only events of these canonical types, as on REST GET /runs/{run_id}/events."
      },
      "is_error": {
        "type": "boolean",
        "description": "true: only error events; false: only other events."
      },
      "start": {
        "type": "string",
        "description": "Only events created at or after this ISO 8601 instant, as on REST GET /runs/{run_id}/events."
      },
      "end": {
        "type": "string",
        "description": "Only events created before this ISO 8601 instant, as on REST GET /runs/{run_id}/events."
      },
      "span_id": {
        "type": "string",
        "description": "Only events with this envelope span_id, as on REST GET /runs/{run_id}/events."
      },
      "turn_id": {
        "type": "string",
        "description": "Only events with this envelope turn_id, as on REST GET /runs/{run_id}/events."
      },
      "search": {
        "type": "string",
        "description": "Case-insensitive payload substring, as on REST GET /runs/{run_id}/events."
      },
      "include_descendants": {
        "type": "boolean",
        "description": "Also include events of readable descendant runs, as on REST GET /runs/{run_id}/events."
      }
    },
    "required": [
      "run_id"
    ],
    "additionalProperties": false,
    "description": "Arguments for the get_run_event_summary tool.",
    "$schema": "http://json-schema.org/draft-07/schema#"
  }
  ```

  ```json title="output-schema.json" theme={null}
  {
    "type": "object",
    "properties": {
      "run_id": {
        "type": "string",
        "minLength": 1,
        "description": "Run identifier associated with this result."
      },
      "total": {
        "type": "integer",
        "minimum": 0
      },
      "error_count": {
        "$ref": "#/properties/total",
        "description": "The error count returned by the tool."
      },
      "first_event_id": {
        "anyOf": [
          {
            "type": "integer",
            "minimum": 0
          },
          {
            "type": "null",
            "description": "The first event id returned by the tool."
          }
        ]
      },
      "last_event_id": {
        "anyOf": [
          {
            "type": "integer",
            "minimum": 0
          },
          {
            "type": "null",
            "description": "The last event id returned by the tool."
          }
        ]
      },
      "first_event_at": {
        "anyOf": [
          {
            "type": "string",
            "format": "date-time"
          },
          {
            "type": "null",
            "description": "The first event at returned by the tool."
          }
        ]
      },
      "last_event_at": {
        "anyOf": [
          {
            "type": "string",
            "format": "date-time"
          },
          {
            "type": "null",
            "description": "The last event at returned by the tool."
          }
        ]
      },
      "by_event_class": {
        "type": "object",
        "properties": {
          "fact": {
            "$ref": "#/properties/total",
            "description": "The fact returned by the tool."
          },
          "delta": {
            "$ref": "#/properties/total",
            "description": "The delta returned by the tool."
          }
        },
        "required": [
          "fact",
          "delta"
        ],
        "additionalProperties": false,
        "description": "Structured by event class details associated with this tool result."
      },
      "by_event_type": {
        "type": "array",
        "items": {
          "type": "object",
          "properties": {
            "event_type": {
              "type": "string",
              "minLength": 1
            },
            "event_class": {
              "type": "string",
              "enum": [
                "fact",
                "delta"
              ],
              "description": "The event class associated with this record."
            },
            "count": {
              "$ref": "#/properties/total",
              "description": "The count returned by the tool."
            },
            "error_count": {
              "$ref": "#/properties/total",
              "description": "The error count returned by the tool."
            }
          },
          "required": [
            "event_type",
            "event_class",
            "count",
            "error_count"
          ],
          "additionalProperties": false
        },
        "description": "List of by event type associated with this tool result."
      },
      "buckets": {
        "type": "array",
        "items": {
          "type": "object",
          "properties": {
            "start": {
              "type": "string",
              "format": "date-time"
            },
            "end": {
              "type": "string",
              "format": "date-time"
            },
            "count": {
              "$ref": "#/properties/total",
              "description": "The count returned by the tool."
            },
            "error_count": {
              "$ref": "#/properties/total",
              "description": "The error count returned by the tool."
            }
          },
          "required": [
            "start",
            "end",
            "count",
            "error_count"
          ],
          "additionalProperties": false
        },
        "description": "List of buckets associated with this tool result."
      }
    },
    "required": [
      "run_id",
      "total",
      "error_count",
      "first_event_id",
      "last_event_id",
      "first_event_at",
      "last_event_at",
      "by_event_class",
      "by_event_type",
      "buckets"
    ],
    "additionalProperties": false,
    "description": "Structured result returned by the get_run_event_summary tool.",
    "$schema": "http://json-schema.org/draft-07/schema#"
  }
  ```
</CodeGroup>

<McpToolCall
  tool="veryfront__get_run_event_summary"
  initialArguments={{
"run_id": "example"
}}
/>


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