Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.272 ·

Second gated tool alongside "Brief": isPewterOwlTool

A second feature-flagged tool, referenced as isPewterOwlTool, sits alongside the existing Brief tool's flag

TierNothing to try yethow much it should matter to you
Useful1my rating, 1 to 5
Signal3worth watching, 1 to 5
AreaTool Gatingwhat it touches
KindIn Developmentin v2.1.272,
Nothing to try yet

A second feature-flagged tool, referenced as isPewterOwlTool, sits alongside the existing Brief tool's flag

What

The tool-name resolver now imports isPewterOwlTool from the same dynamically-loaded chunk that already supplies the Brief tool's name, the send-user-file tool's name, and the Brief tool's own enabled check (isBriefEnabled). This suggests a second tool, alongside Brief, that is controlled by its own feature flag.

Why

This points to another tool being prepared for gradual rollout in the same way the Brief tool was, though what this tool actually does isn't shown here.

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 doubtThe finding only shows a name reference; what `isPewterOwlTool` controls or what the tool does is not established.

See this entry in the whole of v2.1.272 →