# Pay Reserve

> Return a reserved x402 payment authority whose child term is broader than its parent.

- Skill: `runxhq/pay-reserve-3` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add runxhq/pay-reserve-3`
- Raw SKILL.md: https://api.skillmd.com/api/skills/runxhq/pay-reserve-3/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: runxhq (https://skillmd.com/u/runxhq)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/runxhq/pay-reserve-3

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# x402 Pay Negative Authority Broader Child Reserve

Emit a deterministic reservation packet for the x402 broader-child authority
fixture. The spend capability binding is internally consistent for the requested
mock spend, but the child `AuthorityTerm` widens `max_per_call_units` beyond the
parent so native authority admission must reject before rail fulfillment.