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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

pool_id

setting in the build JSON

A Claude Code settings key, read out of the shipped bundle. It has been in the build since v2.1.309, including the newest one read.

Create a cloud session straight from the command line with --environment and a prompt, optionally as JSON.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.224.

First seen v2.1.309 22 Oct 2026
Last seen v2.1.309 22 Oct 2026
Builds1 / 150on this box, as of v2.1.309
Written about v2.1.172 first named in a changelog, 10 Jun 2026
v2.1.309in the build not in the build never minedv2.1.309

In the changelogs

4

Releases whose published page names pool_id.

  1. v2.1.290
    Creating a cloud session now reports what was not applied

    The cloud session create command now prints a notice and a list of what was not applied, also adding both to its JSON output

    found in this entry's text

  2. v2.1.287
    Cloud sessions created with --environment pass on a no-monorepo option

    Creating a cloud session with --environment now passes a no-monorepo option along with the environment ID

    found in this entry's text

  3. v2.1.224
    Create a cloud session without a terminal

    Create a cloud session straight from the command line with --environment and a prompt, optionally as JSON.

    found in this entry's text

  4. v2.1.172

First cited

0

No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.

Presence across releases

1
BuildsHow manyDatesReading
v2.1.3091 build22 Oct 2026 ◆in the build

Build by build

1

One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.

BuildDateStateThe record behind it
v2.1.30922 Oct 2026·addedverdict: added

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the settings key does. All settings keys.

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