{"name":"sigv4a","slug":"sigv4a","family":"setting","title":"Settings keys","noun":"settings key","description":"Managed limits on which AWS credentials the sandbox may use survive settings merges now.","description_source":"entry","described_by":{"version":"2.1.224","anchor":"sandbox-credential-restrictions-no-longer-lost-when-settings"},"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.322","builds":0,"mined_builds":161,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.268","anchor":"new-aws-sigv4-masked-credential-signing-policy-default-deny","heading":"New AWS SigV4 masked-credential signing policy, default deny","line":"New sandbox setting controls whether AWS-signed requests the proxy can't re-sign are denied or passed through","released_at":"2026-09-10 18:41:11","reason":"found in this entry's text"},{"version":"2.1.268","anchor":"s3-tool-gains-explicit-deny-by-default-policy-fields-for-aws","heading":"S3 tool gains explicit deny-by-default policy fields for AWS streaming auth schemes","line":"S3 tool now has separate deny-by-default policy switches for streaming, presigned, and SigV4A auth requests","released_at":"2026-09-10 18:41:11","reason":"found in this entry's text, named in this entry"},{"version":"2.1.224","anchor":"sandbox-credential-restrictions-no-longer-lost-when-settings","heading":"Sandbox credential restrictions no longer lost when settings are merged","line":"Managed limits on which AWS credentials the sandbox may use survive settings merges now.","released_at":"2026-08-07 01:36:32","reason":"found in this entry's text"}],"entries_total":3,"docs":[{"source":"claude-code","path":"claude-apps-gateway","title":"Claude apps gateway for Amazon Bedrock, Claude Platform on AWS, Google Cloud, and Microsoft Foundry","documented":false},{"source":"claude-code","path":"sandboxing","title":"Configure the sandboxed Bash tool","documented":false},{"source":"claude-code","path":"settings-reference","title":"All settings","documented":false}],"docs_total":3,"gates":[],"related":[],"url":"https:\/\/changelogs.core-directive.com\/reference\/setting\/sigv4a","family_url":"https:\/\/changelogs.core-directive.com\/reference\/setting.json"}