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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_haze_glass

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.210, including the newest one read.

What it is

When only one org memory store is found, it is no longer picked for you automatically.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.219.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined — —
2.1.210 – 2.1.243 33 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
v2.1.238 Off in both readings off off on
v2.1.224 read on another version Off in both readings off off on
v2.1.223 read on another version Off in both readings off off on
v2.1.219 read on another version Off in both readings off off on
v2.1.213 read on another version Off in both readings off off on
v2.1.210 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. v2.1.238The memory-tools gate was renamed, so everyone is back on file-based memory

    The memory-tools switch was renamed, resetting any rollout, so everyone is back on file-based memory.

    gate cited by this entry

  2. v2.1.224New memory_write tool for saving documents to a connected memory store

    Claude can now save documents into a connected memory store, with secret scanning blocking risky writes.

    gate cited by this entry

  3. v2.1.224Memory store listing gains each store's index path

    Listing memory stores can also report each store's index document path.

    gate cited by this entry

  4. v2.1.224Memory writes are scanned for secrets before they land

    Memory writes get scanned for secrets and refused, naming what matched and that the store is shared.

    gate cited by this entry

  5. v2.1.224Memory writes will require the version token from your last read

    Memory writes will need the version token from your last read, forcing a read before overwriting.

    gate cited by this entry

  6. v2.1.223Read-only org memory tools: memory_list and memory_read

    Two read-only tools let Claude browse and read org memory documents, but they stay disabled by default.

    gate cited by this entry

  7. v2.1.223Org-memory gating consolidated into one predicate

    Whether org memory loads is now decided in one place, driven by a kill-switch variable and a setting.

    gate cited by this entry

  8. v2.1.219Org memory no longer auto-selects a lone candidate store

    When only one org memory store is found, it is no longer picked for you automatically.

    gate cited by this entry

  9. v2.1.219Org memory: discovery telemetry and store-picker copy

    The memory store picker nudges you to pick a specific project instead of leaving the legacy default.

    gate cited by this entry

  10. v2.1.219Org-memory discovery can return a prompt_index path

    Org memory discovery can pick up a prompt index path from the server and attach it to the mount.

    gate cited by this entry

  11. v2.1.213Org Memory: Silo and Grouping Selection [Gradual Rollout]

    gate cited by this entry

  12. v2.1.210Memory Architecture: Org Memory Discovery Replaces Personal/Team Sync

    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_haze, up to twelve of them.

tengu_hazel_ospreyNo description from anybody. 2.1.138 tengu_hazel_osprey_floorNo description from anybody. 2.1.138 tengu_hazel_quireClaude has the machinery to write dated session log files for auto-memory, but nothing calls it. 2.1.221 tengu_hazel_trellisNo description from anybody. never mined

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.