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 v2.1.221 Home All releases olderv2.1.220 v2.1.222newer

MCP task polling uses plain protocol requests instead of the experimental tasks client

Under the hood
Useful2 Signal0
MCP

MCP task polling now uses plain protocol calls instead of an experimental client path.

What

getTask, getTaskResult and cancelTask no longer go through the SDK's experimental tasks namespace.

Details
  • replaced by direct requests for "tasks/get", "tasks/result" and "tasks/cancel"
  • each request carries an explicit result schema
Evidence

{ method: "tasks/cancel", params: { taskId: i } }

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

See this entry in the whole of v2.1.221 →