{"uid":"cap_-mjIorMUeDbd0Ow3n7V4q","slug":"ddg-directory-lint-http-message-signatures-directory-validator-d5ba5d72","name":"DDG Directory Lint — HTTP Message Signatures Directory Validator","description":"Fetch and lint a /.well-known/http-message-signatures-directory: JWK shape (OKP/Ed25519), self-signature presence, key freshness, and pinned-agent consistency. Per-step pass/fail report.","url":"https://agents.daedalusdevelopmentgroup.com/v1/wba/directory-lint?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input","output"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":true},"output":{"type":"object","required":["type","example"],"properties":{"type":{"type":"string"},"example":{"ok":true}},"additionalProperties":true}}},"responseSchema":{"type":"json","example":{"ok":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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_3G4q2TfxB8pNl99D46JZh","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":"Fetches and lints a /.well-known/http-message-signatures-directory endpoint, checking JWK shape (OKP/Ed25519), self-signature presence, key freshness, and pinned-agent consistency, returning a per-step pass/fail report.","exampleAgentPrompt":"Can you lint my agent's HTTP message signatures directory at https://myagent.example.com/.well-known/http-message-signatures-directory and tell me which steps pass or fail — specifically whether the Ed25519 JWK shape is correct, the self-signature is present, the key is fresh, and the pinned-agent is consistent?","exampleUseCases":[{"title":"Pre-deployment agent identity audit","prompt":"Before I deploy my new AI agent, can you lint its /.well-known/http-message-signatures-directory at https://staging.myagent.io and give me a step-by-step report on whether the OKP/Ed25519 JWK is properly shaped, the self-signature is there, and the key hasn't expired?"},{"title":"Debugging failing agent authentication","prompt":"My agent at https://agent.myservice.com keeps failing authentication handshakes — can you run a full lint on its http-message-signatures-directory and show me exactly which checks are passing and which are failing, including pinned-agent consistency?"},{"title":"Periodic compliance check for agent key freshness","prompt":"I need to verify that my production agent's well-known signatures directory at https://prod.agentfleet.example.com still has fresh keys and a valid self-signature — can you lint it and flag any stale or misconfigured entries?"}],"resultDescription":"A per-step pass/fail report covering: JWK shape validity (OKP/Ed25519), presence of self-signature, key freshness status, and pinned-agent consistency. Each check is individually reported so the caller can identify exactly which aspect of the directory is non-compliant.","failureModes":["Target URL is unreachable or returns non-200 — lint cannot proceed","Directory is missing required fields — individual step fails with explanation","Key is expired or stale — key freshness step fails","Self-signature is absent or invalid — self-signature step fails","Pinned-agent reference is inconsistent — pinned-agent consistency step fails","Malformed JWK (wrong curve or key type) — JWK shape step fails"],"whenToPreferThis":"Use this endpoint when you need to validate that a /.well-known/http-message-signatures-directory is correctly configured for agent-to-agent authentication — specifically when checking Ed25519/OKP JWK compliance, self-signature presence, key freshness, and pinned-agent consistency in a single call. Prefer this over manual inspection or general-purpose HTTP tools when you need a structured, per-step audit report.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:40:19.564Z","isFirstParty":false,"canonicalSlug":"ddg-directory-lint-http-message-signatures-directory-validator-d5ba5d72"}