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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 v2.1.257 ·

Sandboxed grep/awk argument allowlisting

New parsers pull file-path operands out of grep and awk arguments so they can be allowlisted for the sandbox.

TierUnder the hoodhow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaSandboxwhat it touches
KindInternal Changesin v2.1.257,
Under the hood

New parsers pull file-path operands out of grep and awk arguments so they can be allowlisted for the sandbox.

New helper functions parse grep and awk command-line arguments to extract path-like operands for sandboxing, recognizing flags such as -e/--regexp and -A/--after-context for grep, and -F/--field-separator, -f/--file, -E/--exec for awk. This distinguishes which arguments are file paths versus regex or script content, supporting path-allowlisting tied to the sandbox.ripgrep managed setting.

Read from
Names in the bundlesandbox.ripgrep
Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Confirmed since Anthropic's documentation has since written up sandbox.ripgrep, on All settings. | Values taken whole | Takes the value whole from the highest source that sets it, without combining entries or fields from lower sources. When the highest source doesn't set it, takes it whole from the next source down | [`sandbox.credent… settings-reference see the edit
How sure we are
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up sandbox.ripgrep, on All settings.
Anthropic's release notes agreeChanged managedSourcesBehavior: "merge" to take sandbox.credentials.awsPairs and sandbox.ripgrep whole from the highest managed source that…

See this entry in the whole of v2.1.257 →

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