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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.251 ·

Tooling to adopt recorded mock responses into a replay directory

Eval tooling can adopt recorded mock responses into a checksummed replay directory.

Under the hood Internal Changes
JSON All of v2.1.251
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Plugin EvalArea: what it touches
Internal ChangesKind: in v2.1.251,
Internal ChangesSection of the release
What

Internal eval tooling can now take newly recorded MCP mock server responses from a run and adopt them into a .replay/ directory, with a manifest file and per-file sha256 hashes so a copy can be checked, and guards against another process writing at the same time.

Details
  • Developer and eval tooling only; nothing here is reachable from a normal session.
Evidence

Each line carries the sha256 of the file as written; check the copy you take against the hash printed to the terminal

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

See this entry in the whole of v2.1.251 →

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