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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 v2.1.242 ·

Artifact write_db accepts a batch of writes under one approval

Artifact database writes can be batched so several documents commit under one approval.

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New FeaturesKind: in v2.1.242,
What probably matters to youSection of the release
What

The artifact database tool takes db_op: "batch" with a writes array, so several set, update and delete operations commit together under a single approval instead of prompting once per call. Each entry can supply its document inline or point at a local JSON file to read it from. The tool description now tells the model to prefer a batch over separate calls when it has more than a couple of documents to write.

Details
  • each entry in writes names an op of set, update or delete, plus collection, doc_id, and exactly one of data (the document inline) or file_path (a local file holding a JSON object to use as the document)
  • a batch is capped at a fixed number of entries
  • where the server supports batch writes the whole batch commits all-or-nothing; where it does not, the entries are applied one at a time in order, the result states which of the two modes ran, and a failure part-way through names the entries already written
  • two entries targeting the same document in one batch are refused with the error db_batch_duplicate
  • reading a file_path goes through the normal Read permission rules, and the approval is re-checked before the batch runs so entries cannot be added, removed or switched between inline and file after you approved it
  • collection paths were tightened from 1-31 to 1-15 slash-separated segments, each segment allowing letters, digits and _ - . ~ : @ +, so subcollections nest like boards/b1/columns
  • available wherever the artifact tool is offered, with no separate flag or setting to turn it on
Evidence

applied one at a time in order (this server has no batch write yet); a failure part-way leaves earlier entries written, such writes at once, Database collection path: 1-15 "/"-separated segments (letters, digits, _ - . ~ : @ + per segment), so subcollections nest like "boards/b1/columns". Required for read_db and write_db.

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

Read from
Names in the bundlewrite_db

See this entry in the whole of v2.1.242 →

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