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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.247

Slash commands from an MCP server no longer go stale after a resource change

You'll notice
Useful4 Signal2
MCP

MCP slash commands now refresh when the server changes, instead of staying stale until restart.

What

When an MCP server announced that its resource list changed, Claude Code refreshed resources and skills but silently skipped commands, so that server's slash commands kept their old definitions until restart. Commands are now refetched along with everything else.

Details
  • The refresh ran four parallel fetches, one of which duplicated the resource-template fetch and overwrote the commands slot.
  • Commands are now rebuilt from the fetched commands plus skills.
  • Affects the branch taken when MCP skills support is on and the server advertises resources.
Evidence

Received resources/list_changed notification, refreshing resources

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.247 →