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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 / Feature flags

tengu_maple_pier

A Claude Code feature flag, read out of the shipped bundle. It was in the build from v2.1.152 and was gone by v2.1.242.

What it is

The auto-mode suggestion would only appear in sessions where auto mode can actually be used.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.225.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined — —
2.1.242 – 2.1.243 2 releases not in the build — —
2.1.152 – 2.1.241 80 releases in the build — bool:false

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.

Gate readings

ReleaseResolvedThis accountAnonymousCompiled default
v2.1.236 Off in both readings off off on
v2.1.232 read on another version Off in both readings off off on
v2.1.225 read on another version Off in both readings off off on

Two arms, because they disagree: this account is the one account this site reads and anonymous is a baseline with no identity attached. A reading says nothing about your account, and off cannot rule out a rollout both readings sit outside of. What these readings can and cannot show.

Changelog entries naming it

  1. v2.1.236One-time prompt offering to make auto mode your default permission mode

    Claude can offer once to make auto mode your default permission mode, switched off in this build.

    gate cited by this entry

  2. v2.1.232IDE connect payload can advertise a permission-mode nudge

    IDE connections can be told auto mode was only a fallback and which default would be offered instead.

    gate cited by this entry

  3. v2.1.232IDE hosts can drive the auto-mode default nudge

    Your editor can show and answer the prompt offering auto as your default permission mode.

    gate cited by this entry

  4. v2.1.225Auto-mode default nudge requires the session to actually support auto

    The auto-mode suggestion would only appear in sessions where auto mode can actually be used.

    gate cited by this entry

  5. v2.1.225Auto-mode nudge now switches the running session, or explains why it can't

    Saying yes to the auto-mode prompt would switch your current session too, not just future ones.

    gate cited by this entry

Documentation pages

None of Anthropic's documentation pages this site has a copy of carries this name.

Names beside it

Every feature flag in the inventory starting tengu_maple, up to twelve of them.

tengu_maple_forge_w8kNo description from anybody. never mined tengu_maple_rungNo description from anybody. 2.1.211 tengu_maple_sundialNo description from anybody. 2.1.163 tengu_maple_tideNo description from anybody. 2.1.138

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 feature flag does. All feature flags.