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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.

All of v2.1.246 Home All releases olderv2.1.245 v2.1.247newer
Claude Code v2.1.246

MCP result and blob writes go through the storage layer

Under the hood
Useful1 Signal2
MCP

Oversized MCP results and saved media now write through the storage layer explicitly.

What

Oversized MCP tool results, binary content blocks, MCP task results and their image and audio saves now pass storage and credential arguments to the file writer instead of relying on defaults, and the task poller carries credentials through its post-restart resume. The saved-output hints you see are unchanged, and the existing kill switch for large output files still applies.

Evidence

[The portion truncated above was not saved: the per-result persist budget is exhausted.]

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

See this entry in the whole of v2.1.246 →