---
title: "Review the deprecated logging capability"
description: "MCP 2026-07-28 uses per-request log-level selection rather than logging/setLevel. MCP Description warns about the logging server capability for that version. Review the advertiseme"
source: "https://mcpdesc.org/docs/rules/0.9.0-rc.3/mcp/capabilities-logging-deprecated/"
---

MCP 2026-07-28 uses per-request log-level selection rather than logging/setLevel. MCP Description warns about the logging server capability for that version. Review the advertisement; the warning alone does not make the description invalid.

## Requirement

The logging server capability is reported as deprecated in MCP 2026-07-28.

## Details

**Rule ID:** `mcp.capabilities.logging.deprecated`  
**Owner:** mcp  
**Surface:** ServerCapabilities · **Path:** `logging`  
**Kind:** semantic  
**Requirement level:** should  
**Status:** internal · **Enforcement:** internal

## Protocol version applicability

| 2024-11-05     | 2025-03-26     | 2025-06-18     | 2025-11-25     | 2026-07-28 |
| -------------- | -------------- | -------------- | -------------- | ---------- |
| not-applicable | not-applicable | not-applicable | not-applicable | applies    |

## Required by

* **MCP Description 0.9.0, Section 8.2**  
  * 8\. Capabilities: [req-capabilities-logging-deprecated](https://mcpdesc.org/docs/specification/0.9.0-rc.3/capabilities#req-capabilities-logging-deprecated)

## Based on

* **Tier 1 — MCP schema.ts and normative specification text:** MCP 2026-07-28 schema.ts, ServerCapabilities logging (@deprecated, SEP-2577); specification, Server Features, Utilities, Logging (deprecated)  
  * [validation/mcp-schemas/2026-07-28/schema.ts#L798-L808](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/schema/2026-07-28/schema.ts#L798-L808)
  * <https://github.com/modelcontextprotocol/modelcontextprotocol/blob/dae694f61a31f7a3ec2af3aff709e11f70f61e48/docs/specification/2026-07-28/server/utilities/logging.mdx#L8-L18>

## Examples

### Accepted with a warning

Source: [expected-warning/logging-deprecated-2026.json](https://github.com/mcpdesc/mcpdesc-specification/blob/v0.9.0-rc.3/spec/draft/fixtures/expected-warning/logging-deprecated-2026.json) · Selected: `/capabilities/0`

```json
{
  "logging": {}
}
```

## Rule Source Code

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