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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

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.

Reference / Environment variables

CLAUDE_CODE_DISABLE_EXPLORE_PLAN_AGENTS

A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.198, including the newest one read.

What it is

Set to 1 to disable the built-in [Explore and Plan subagents](/docs/en/sub-agents#built-in-subagents). Claude explores with its search tools or the general-purpose subagent instead, and [plan mode](/docs/en/permission-modes#analyze-before-you-edit-with-plan-mode) reads files directly rather than launching Explore and Plan agents. Custom subagents named Explore or Plan are unaffected. To remove every built-in subagent type in the Agent SDK or non-interactive mode, use CLAUDE_AGENT_SDK_DISABLE_BUILTIN_AGENTS instead. Requires Claude Code v2.1.198 or later

Anthropic's own wording. Read off Environment variables, captured 2026-08-28.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined — —
2.1.198 – 2.1.243 45 releases in the build bool —

A row reading never mined is a release with no archived bundle behind it. Nothing was read out of it, so nothing here says whether the name was in it. A declared type or a default is only ever what that release's own bundle stated.

Changelog entries naming it

  1. v2.1.221Explore/plan agents no longer read a remote gate

    Explore and plan agents are now always on unless you set the disable environment variable yourself.

    named in this entry

Documentation pages

A reference table page is one whose own table defines this name, and it is where the description above came from. A page that mentions it carries the name somewhere in its text and may say nothing about it at all. Every page carrying it.

Names beside it

Every environment variable in the inventory starting claude_code_disable_explore, up to twelve of them.

CLAUDE_CODE_DISABLE_EXPLORE_INHERIT_CAPNo description from anybody. 2.1.217

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 environment variable does. All environment variables.