---
title: "Tasks extension: definition and example | Agent MCP Directory"
description: "Tasks extension: An official MCP extension for long-running operations with polling and durable handles. Defined with a sourced example."
canonical: https://agentmcpdirectory.com/glossary/tasks-extension
site: "Agent MCP Directory"
last_updated: 2026-11-04
section: "Glossary"
---

# Tasks extension: definition and example | Agent MCP Directory

> Tasks extension: An official MCP extension for long-running operations with polling and durable handles. Defined with a sourced example.

Source: https://agentmcpdirectory.com/glossary/tasks-extension
Site: Agent MCP Directory
Last reviewed: 2026-11-04

# Tasks extension

Tasks extension: An official MCP extension for long-running operations with polling and durable handles, moved out of core in 2026-07-28. Example: The extension id is io.modelcontextprotocol/tasks. Next in the glossary is Tool: A function an MCP server offers for the model to call, with a name, description and input schema.

## Definition

An official MCP extension for long-running operations with polling and durable handles, moved out of core in 2026-07-28.

## Example, with source

The extension id is io.modelcontextprotocol/tasks. ([modelcontextprotocol.io](https://modelcontextprotocol.io/specification/2026-07-28/changelog), read 4 November 2026)

## Where it appears on this site

-   [MCP](https://agentmcpdirectory.com/standards/mcp/)

## Neighbouring terms

-   [Streamable HTTP](https://agentmcpdirectory.com/glossary/streamable-http/): The MCP HTTP binding where each message is a POST to one endpoint and replies come as JSON or a request-scoped SSE stream.
-   [Tool](https://agentmcpdirectory.com/glossary/mcp-tool/): A function an MCP server offers for the model to call, with a name, description and input schema.
-   [Tool annotations](https://agentmcpdirectory.com/glossary/tool-annotations/): Hints on a tool such as readOnlyHint and destructiveHint that tell clients how risky a call is.

Edition

4 November 2026

Method

[How rows are verified](https://agentmcpdirectory.com/method/)

Data

[CSV and JSON](https://agentmcpdirectory.com/data/)

Markdown

[This page as markdown](https://agentmcpdirectory.com/glossary/tasks-extension/index.md)

## Sources

-   [Source for the Tasks extension example](https://modelcontextprotocol.io/specification/2026-07-28/changelog), read 4 November 2026

Last reviewed 4 November 2026