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Testing & Reviewjaytank-dev/billing-invariant
billing-invariant
Asserts Stripe billing math (credit conservation, proration totals, invoice totals) is actually correct across a sequence of webhook events.
Suggested install command
npm view billing-invariantAlways inspect the linked repository and skill instructions before running commands. Skills are instructions; permissions and execution still matter.
Compatibility
Agent support matrix
3 supported
| Agent | Status |
|---|---|
| Claude Code | Supported |
| OpenCode | Not listed |
| Cursor | Supported |
| MCP | Not listed |
| GitHub Copilot | Not listed |
| Windsurf |