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Version: 0.56.5

CC-SET-026: Invalid promptCacheTtl Setting - Claude Settings

Summary​

  • Rule ID: CC-SET-026
  • Severity: MEDIUM
  • Category: Claude Settings
  • Normative Level: MUST
  • Auto-Fix: No
  • Verified On: 2026-08-25

Applicability​

  • Tool: claude-code
  • Version Range: >=2.1.242
  • Spec Revision: unspecified

Evidence Sources​

Test Coverage Metadata​

  • Unit tests: true
  • Fixture tests: false
  • E2E tests: false

Examples​

The following examples demonstrate what triggers this rule and how to fix it.

Invalid​

{
  "promptCacheTtl": "30m"
}

Valid​

{
  "promptCacheTtl": "1h"
}