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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.301 ·

mcp serve can track and stop background shell commands

When Claude Code runs as an MCP server, the connected app can now see and stop shell commands left running in the background

Use it now New Features
JSON All of v2.1.301
Use it nowTier: how much it should matter to you
4Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
MCPArea: what it touches
New FeaturesKind: in v2.1.301,
What probably matters to youSection of the release

Unclear It is not clear what decides whether mcp serve announces this capability.

What

mcp serve runs Claude Code as an MCP server, so another app (the host) can use its tools. MCP stands for Model Context Protocol. Claude Code now keeps a list of shell commands it has left running in the background, and the host can manage them:

  • A StopBackgroundCommand tool stops a background command, and another tool reads them.
  • The server announces the anthropic/backgroundCommands capability, so the host knows this is supported.
  • Background commands have a time limit.

If a command is moved to the background after it has already finished, Claude Code reports an error saying its output was not kept.

Why

An app that connects to Claude Code through mcp serve can follow and stop shell commands Claude Code started, instead of losing track of them.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear what decides whether `mcp serve` announces this capability.

See this entry in the whole of v2.1.301 →

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