docs(ack-pay): map ACK-Pay concepts to MPP and x402 - #189
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Closes agentcommercekit#90 with a non-normative concept table, composition pattern, and metadata extension example. Co-authored-by: Cursor <cursoragent@cursor.com>
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Included review availability: Your plan provides up to 2 included reviews per hour; 1 remains after this review. WalkthroughThe PR refines ACK-Pay interoperability documentation for MPP and x402. It updates protocol mappings, HTTP 402 composition guidance, verification requirements, metadata guidance, receipt-verification cross-references, and documentation navigation. ChangesACK-Pay interoperability
Estimated code review effort: 2 (Simple) | ~10 minutes 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
Full details: Linked Issues checkExplanation The documentation adds the requested ACK-Pay, MPP, and x402 concept mappings, composition guidance, rail-neutrality details, opaque metadata guidance, comparison content, and an execution-reference example. It also makes no SDK changes, as required by issue [ Full details: Out of Scope Changes checkExplanation The changes remain within the documentation scope of issue [ Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.) ✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@docs/ack-pay/interoperability.mdx`:
- Line 8: Update the MPP hyperlink in the interoperability documentation to use
https://mpp.dev instead of the Model Context Protocol URL, preserving the
surrounding text and x402 link.
- Line 48: Update the ACK-Pay interoperability documentation’s 402 response
description to state that the response contains a JSON Payment Request payload,
with the signed JWT represented separately as its paymentRequestToken field;
make clear that clients must send the full JSON payload rather than a bare
token.
- Around line 25-26: Update the interoperability table and the content at Line
49 to distinguish PAYMENT-SIGNATURE, facilitator verification/settlement,
PAYMENT-RESPONSE settlement results, and the resource server’s optional signed
receipt issued only when the Signed Offers & Receipts extension is enabled;
ensure the actor and artifact mappings reflect these separate roles.
- Around line 53-54: Update the Server verification step in the interoperability
documentation to make trusted issuer validation, revocation checking, and
payment-detail validation mandatory alongside signature and payment-request
binding. Keep only rail-specific metadata-field checks optional and dependent on
the server’s policy.
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docs/ack-pay/interoperability.mdxdocs/ack-pay/receipt-verification.mdxdocs/docs.json
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Fix MPP link to mpp.dev, clarify x402 PAYMENT-RESPONSE vs signed-receipt extension, describe the 402 JSON payload vs paymentRequestToken, and list mandatory receipt verification checks. Co-authored-by: Cursor <cursoragent@cursor.com>
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Addressed CodeRabbit feedback in the latest commit: MPP link now points to https://mpp.dev, x402 mapping separates PAYMENT-RESPONSE from the optional signed-receipt extension, the 402 body is described as a JSON Payment Request payload (with paymentRequestToken inside), and server verification lists trusted issuer / revocation / payment-detail binding as mandatory. |
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Summary
Closes #90
Test plan
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