{"uid":"cap_u4DJk7baXyoxvakKGkOGs","slug":"lumi-verifier-acp-offering-contract-lint-3695dd6c","name":"LUMI Verifier – ACP Offering Contract Lint","description":"Check an ACP offering's published contract before you buy. Detects listings that declare no JSON deliverable schema, name required fields they never declare, or specify no input schema at all — the defects that make a purchase unverifiable after the fact. Reads the public listing only; nothing is purchased or executed. Deterministic, no model judgment. A PASS means the listing is machine-checkable — it is not a correctness guarantee and says nothing about output quality.","url":"https://app.tenna.ai/api/x402/verifier/acp_offering_contract_lint","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"offering":{"type":"string","const":"acp_offering_contract_lint","description":"Offering identifier. Must be exactly 'acp_offering_contract_lint'."},"offeringContract":{"type":"object","description":"Published offering object with its requirements and deliverable schemas."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WIWmVwVo_IYPwi_KBGUR8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Statically lints an ACP offering's published contract to detect structural defects (missing JSON deliverable schema, undeclared required fields, absent input schema) before purchase.","exampleAgentPrompt":"Before I buy this ACP offering, can you lint its contract to check whether it declares a proper JSON deliverable schema, lists all required fields, and has an input schema — basically confirm it's machine-checkable?","exampleUseCases":[{"title":"Pre-purchase contract defect check","prompt":"I'm about to purchase this ACP offering but I want to make sure the contract is properly structured first — can you lint it and tell me if it's missing a deliverable schema or has any undeclared required fields?"},{"title":"Marketplace listing quality gate","prompt":"I'm building an automated buyer agent and I need to screen ACP listings before my agent pays for them — run a contract lint on this offering object and tell me if it passes the machine-checkability test."},{"title":"Seller contract self-validation","prompt":"I've just published an ACP offering and want to verify my contract is correctly formed — can you lint it to confirm it declares an input schema and all required fields are properly listed?"}],"resultDescription":"Returns a PASS or FAIL verdict indicating whether the offering contract is machine-checkable, along with a list of detected structural defects such as missing JSON deliverable schema, undeclared required fields, or absent input schema. A PASS does not guarantee output quality, only structural verifiability.","failureModes":["Invalid or malformed offeringContract object returns a validation error","Missing required 'offering' field or wrong const value causes rejection","Offering contract with no schema at all may return immediate FAIL with multiple defect flags","Network or service unavailability returns a non-200 HTTP response"],"whenToPreferThis":"Choose this endpoint when you need a deterministic, model-free structural audit of an ACP offering contract before committing to a purchase. It is not a substitute for runtime deliverable auditing (use LUMI's deliverable audit endpoint for that) and does not evaluate output quality — use it specifically as a pre-purchase gate to ensure the listing is machine-checkable and structurally sound.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:34:57.065Z","isFirstParty":false}