Source Intelligence

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.

All of v2.1.227 Home All releases olderv2.1.226 v2.1.228newer
Claude Code v2.1.227

MCP credential and cache locations are now parameters

Under the hood
Useful1 Signal1
MCP

MCP credentials and the discovery cache are now passed in rather than read from globals.

What

Both MCP OAuth providers read credentials through an injectable store rather than a global, and the MCP discovery cache is described by a location record naming the user config directory and a mcp-discovery-cache folder instead of an in-process map. Behaviour is unchanged.

Evidence

mcp-discovery-cache

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

See this entry in the whole of v2.1.227 →