git:20260604.a6ec7d9 to git:20260715.f00df98

5 added, 13 removed. Audit A to A.

---

name: mock-charge

description: Model provider-side charge verification through the deterministic mock settlement family.

runx:

category: payments

---

# Mock Charge

Compose provider-side charge pricing, challenge emission, credential

verification, receipt sealing, and modeled forwarding for the deterministic

mock settlement family.

This graph profile is for local harnesses, demos, and contract tests. It makes

the authority transition visible without claiming executable provider-side

runtime forwarding.

- ## Quality Profile

- - Purpose: show the provider-side charge graph using deterministic local

- settlement evidence.

- - Audience: operators, registry tooling, and future runtime implementers.

- - Artifact contract: `charge_price_packet`, `charge_challenge_packet`,

- `charge_verification_packet`, `charge_seal`, and `forwarded_result`.

- - Evidence bar: success requires price, challenge, verification proof, sealed

- receipt ref, and a modeled forward gate.

- - Strategic bar: keep mock deterministic and avoid raw rail or merchant

- credentials.

- - Stop conditions: stop before modeled forwarding when verification lacks a

- sealed receipt ref.

+ The deterministic path is complete only when priced bounds become an

+ idempotent challenge, verification produces a mock proof reference, and a

+ sealed receipt gates the modeled upstream result. Keep raw rail and merchant

+ credentials out of every artifact. If verification cannot name its proof and

+ sealed receipt, stop before the forwarding step.

## Output

- `charge_price_packet`: provider-side price and requested authority.

- `charge_challenge_packet`: `effect_required` challenge and idempotency key.

- `charge_verification_packet`: mock settlement proof and receipt ref.

- `charge_seal`: modeled child receipt seal.

- `forwarded_result`: modeled upstream result gated by the seal.

## Inputs

- `mcp_tool_call` (required): inbound MCP operation request.

- `provider_policy` (required): provider price and family policy.

- `returned_credential` (required): mock credential envelope or reference.

- `parent_payment_authority` (optional): parent payment authority term or ref.

- `verify_capability_ref` (required): single-use verification capability ref.

- `idempotency_seed` (optional): stable challenge idempotency seed.