sigv4
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
Sandbox credential masking can fake JWTs, mask single claims, and re-sign AWS requests after swapping keys.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.224.
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
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v2.1.224Sandbox credential masking gains JWT handling, per-claim masking and AWS SigV4 re-signing
Sandbox credential masking can fake JWTs, mask single claims, and re-sign AWS requests after swapping keys.
named in this entry
Documentation pages
- claude-platform-on-aws-iam-actions mentions it Claude Developer Platform
- errors mentions it Claude Developer Platform
- claude-in-amazon-bedrock mentions it Claude Developer Platform
- claude-on-amazon-bedrock-legacy mentions it Claude Developer Platform
- claude-platform-on-aws mentions it Claude Developer Platform
- spawn.sh: called once per claimed work item mentions it Claude Developer Platform
- vaults mentions it Claude Developer Platform
- Claude Code on Amazon Bedrock mentions it Claude Code CLI
- Claude Code changelog mentions it Claude Code CLI
- Claude apps gateway for Amazon Bedrock, Claude Platform on AWS, Google Cloud, and Microsoft Foundry mentions it Claude Code CLI
- Claude apps gateway configuration mentions it Claude Code CLI
- Claude Code on Claude Platform on AWS 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.
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.