---
title: "Give example results their MCP result shape"
description: "Example results carry MCP result values: a Tool result has content, a resource read result has contents, a prompt result has messages, and a completion result has completion. Their"
source: "https://mcpdesc.org/docs/rules/0.9.0-rc.3/mcp/example-result-members/"
---

Example results carry MCP result values: a Tool result has content, a resource read result has contents, a prompt result has messages, and a completion result has completion. Their members follow the MCP types.

## Requirement

Completed example results have the required members and member types of the MCP result type they carry.

## Details

**Rule ID:** `mcp.example-result.members`  
**Owner:** mcp  
**Surface:** CallToolResult, ReadResourceResult, GetPromptResult, CompleteResult  
**Kind:** structural  
**Requirement level:** must  
**Protocol versions:** independent of the MCP protocol version  
**Document schema locations:** `#/$defs/completedToolResultExample`, `#/$defs/completedReadResourceResultExample`, `#/$defs/completedPromptResultExample`, `#/$defs/promptMessageExample`, `#/$defs/completedCompletionResultExample`  
**Status:** internal · **Enforcement:** internal

## Required by

* **MCP Description 0.9.0, Sections 3.6, 9.3, 10.4.4, and 11.3**  
  * 3\. Document Structure: [req-carried-defined-fields](https://mcpdesc.org/docs/specification/0.9.0-rc.3/document-structure#req-carried-defined-fields)
  * 1. Tools: [req-tool-example-result-shape](https://mcpdesc.org/docs/specification/0.9.0-rc.3/tools#req-tool-example-result-shape)
  * 1. Resources and Resource Templates: [req-resource-example-result-shape](https://mcpdesc.org/docs/specification/0.9.0-rc.3/resources#req-resource-example-result-shape)
  * 1. Prompts: [req-prompt-example-result-shape](https://mcpdesc.org/docs/specification/0.9.0-rc.3/prompts#req-prompt-example-result-shape)
  * 1. Document Structure: [req-completed-result-fields](https://mcpdesc.org/docs/specification/0.9.0-rc.3/document-structure#req-completed-result-fields)
  * 1. Resources and Resource Templates: [req-resource-example-contents](https://mcpdesc.org/docs/specification/0.9.0-rc.3/resources#req-resource-example-contents)
  * 1. Resources and Resource Templates: [req-template-completion-result](https://mcpdesc.org/docs/specification/0.9.0-rc.3/resources#req-template-completion-result)
  * 1. Prompts: [req-prompt-completion-result](https://mcpdesc.org/docs/specification/0.9.0-rc.3/prompts#req-prompt-completion-result)

## Based on

* **Tier 1 — MCP schema.ts and normative specification text:** MCP 2025-11-25 and 2026-07-28 schema.ts, CallToolResult, ReadResourceResult, GetPromptResult, PromptMessage, and CompleteResult  
  * [validation/mcp-schemas/2025-11-25/schema.ts#L1104-L1130](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2025-11-25/schema.ts#L1104-L1130)
  * [validation/mcp-schemas/2025-11-25/schema.ts#L723-L725](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2025-11-25/schema.ts#L723-L725)
  * [validation/mcp-schemas/2025-11-25/schema.ts#L971-L977](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2025-11-25/schema.ts#L971-L977)
  * [validation/mcp-schemas/2025-11-25/schema.ts#L1032-L1035](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2025-11-25/schema.ts#L1032-L1035)
  * [validation/mcp-schemas/2025-11-25/schema.ts#L2042-L2057](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2025-11-25/schema.ts#L2042-L2057)
  * [validation/mcp-schemas/2026-07-28/schema.ts#L1809-L1838](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2026-07-28/schema.ts#L1809-L1838)
  * [validation/mcp-schemas/2026-07-28/schema.ts#L1229-L1231](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2026-07-28/schema.ts#L1229-L1231)
  * [validation/mcp-schemas/2026-07-28/schema.ts#L1634-L1640](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2026-07-28/schema.ts#L1634-L1640)
  * [validation/mcp-schemas/2026-07-28/schema.ts#L1704-L1707](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2026-07-28/schema.ts#L1704-L1707)
  * [validation/mcp-schemas/2026-07-28/schema.ts#L2644-L2661](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2026-07-28/schema.ts#L2644-L2661)

## Examples

### Invalid example

Source: [expected-invalid/malformed-resource-examples.json](https://github.com/mcpdesc/mcpdesc-specification/blob/v0.9.0-rc.3/spec/draft/fixtures/expected-invalid/malformed-resource-examples.json) · Selected: `/resourceTemplates/0/examples/missing-uri/result/contents`

```json
[]
```

### Invalid example

Source: [expected-invalid/resource-example-cache-fields.json](https://github.com/mcpdesc/mcpdesc-specification/blob/v0.9.0-rc.3/spec/draft/fixtures/expected-invalid/resource-example-cache-fields.json) · Selected: `/resources/1/examples/invalid/result/cacheScope`

```json
"shared"
```

## Rule Source Code

[example.yaml](https://github.com/mcpdesc/mcpdesc-specification/blob/v0.9.0-rc.3/spec/draft/validation/rules/example.yaml) at immutable tag [v0.9.0-rc.3](https://github.com/mcpdesc/mcpdesc-specification/blob/v0.9.0-rc.3/spec/draft).