sandbox.credentials.files
A Claude Code settings key, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.
What it is
Block or mask reads of a credential file inside the [sandbox](/docs/en/sandboxing#mask-credential-files)
Anthropic's own wording. Read off Claude Code settings reference, captured 2026-08-28.
Presence across releases
The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.
Changelog entries naming it
-
v2.1.221sandbox.credentials.files gains a
maskmode with regex extractionYou can mask secrets in credential files so sandboxed commands see placeholders while real values are swapped in on egress.
named in this entry
Documentation pages
- Claude Code settings reference reference table Claude Code CLI
- Configure the sandboxed Bash tool mentions it Claude Code CLI
A reference table page is one whose own table defines this name, and it is where the description above came from. A page that mentions it carries the name somewhere in its text and may say nothing about it at all. Every page carrying it.
Names beside it
Every settings key in the inventory starting sandbox.credentials, up to twelve of them.
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 settings key does. All settings keys.