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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.274 ·

Gated: eager unresolved-tool-use detection path (tengu_eager_pillow)

A gated code path changes how Claude Code detects unresolved tool uses

TierNothing to try yethow much it should matter to you
Useful1my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaTool Usewhat it touches
KindIn Developmentin v2.1.274,
Nothing to try yet No documentation found

A gated code path changes how Claude Code detects unresolved tool uses

What

The function that finds unresolved tool uses (findUnresolvedToolUse) now has a new code path controlled by a feature flag. When enabled, it uses a new lookup function combined with the existing check for the last assistant turn, instead of the previous lookup function it used before.

Why

This appears to be a behind-the-scenes change to how Claude Code identifies tool calls that haven't been resolved yet, likely aimed at improving accuracy or performance of that detection.

The tengu_eager_pillow gate controlling this path has no recorded reading, so nothing can be said here about whether it's on or off.

Read from
Names in the bundletengu_eager_pillow
Feature flag
tengu_eager_pillow Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.274: off

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.274. It isn't a statement about your account. What a flag value here can and cannot tell you

What has happened since
Flag reading moved The flag server now returns on for tengu_eager_pillow, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

See this across every release →

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhether tengu_eager_pillow is enabled is unread and not established by this finding.
The name it cites is new in this buildNew in this build: tengu_eager_pillow

See this entry in the whole of v2.1.274 →

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