Follow Discord
Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.318 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeReleasesv2.1.319entry #412

Claude Code v2.1.319 ·

Early loading of MCP server tool lists is no longer always on

Claude Code no longer always loads an MCP server's tool list ahead of time while connecting; two conditions now decide it

Under the hood Internal Changes
JSON All of v2.1.319
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.319,
Internal ChangesSection of the release

Unclear What the two conditions check, and so when the early fetch is skipped, is not stated.

What

MCP servers are outside programs that give Claude Code extra tools. When Claude Code connects to a list of MCP servers, it can fetch each server's list of tools ahead of time. That early fetch used to be always on. It now happens only when two internal conditions are both met.

Why

In some setups, Claude Code may now skip fetching MCP tool lists early while it connects to servers.

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 doubtWhat the two conditions check, and so when the early fetch is skipped, is not stated.

See this entry in the whole of v2.1.319 →

Feedback