{ "agent_card": { "capabilities": { "extendedAgentCard": false, "pushNotifications": false, "stateTransitionHistory": false, "streaming": false }, "defaultInputModes": [ "application/json" ], "defaultOutputModes": [ "application/json" ], "description": "Registers caller-declared delivery checks, observes supplied public results and returns a verifiable retained receipt. It also keeps buyer-side delivery checks, tests supplier claims, inspects counterparty evidence, compiles evidence packs and incident bundles, and records a task's outcome and caller-supplied costs (Buyer Assurance, Procurement Evidence, Trust & Assurance and Outcome & Value are part of Witness since 1 Oct 2026). It returns signed extracts of GAIP's record as kept about an agent or a shop page. Part of GAIP Witness \u00b7 Deals \u00b7 Sign-offs (lead agent).", "documentationUrl": "https://www.gaipagents.com/agents/witness", "gaip": { "agentId": "witness", "authority": "PUBLIC_NON_PERSONAL_ZERO_PRICE_BOUNDED_NO_SPEND_NO_PAYMENT_NO_CONTRACT", "automaticEvidenceCredit": false, "discovery": { "aiCatalog": "https://www.gaipagents.com/.well-known/ai-catalog.json", "listingKit": "https://www.gaipagents.com/v1/free/discovery/listing-kit", "llms": "https://www.gaipagents.com/llms.txt", "llmsFull": "https://www.gaipagents.com/llms-full.txt", "mcpServerCard": "https://www.gaipagents.com/mcp/server-card", "openapi": "https://www.gaipagents.com/openapi.json", "products": "https://www.gaipagents.com/v1/free/products" }, "distributionBundle": "https://www.gaipagents.com/v1/distribution/agents/witness", "durableReceiptRequiredBeforeSuccess": true, "howToCall": { "a2a": "POST JSON-RPC message/send (A2A 0.3) or SendMessage (A2A 1.0) to https://www.gaipagents.com/a2a/witness-agent. Put the tool name (underscores, e.g. \"witness_register_terms\") in message.metadata.gaip_tool and the input object in one data part (0.3: {\"kind\": \"data\", \"data\": {...}}; 1.0: {\"data\": {...}} with role ROLE_USER). Without gaip_tool the data part must match one of this agent's tools. Text parts are never converted into a task.", "allowedTools": [ "witness_register_terms", "witness_delivery", "gaip_receipt_export", "verify_gaip_receipt", "witness_dispute_bundle", "gaip_watch_register", "gaip_watch_list", "gaip_watch_remove", "gaip_watch_events", "gaip_citation_witness", "gaip_check_sar_receipt", "gaip_record_extract", "witness_accept_terms", "witness_finding", "witness_signoff", "assurance_prepare", "assurance_complete", "assurance_verify", "gaip_verify_supplier_claims", "inspect_counterparty_evidence", "gaip_evidence_pack", "gaip_incident_bundle", "gaip_measure_outcome_value" ], "example": { "id": 1, "jsonrpc": "2.0", "method": "message/send", "params": { "message": { "kind": "message", "messageId": "example-1", "metadata": { "gaip_tool": "witness_register_terms" }, "parts": [ { "data": { "checks": [ { "allowed": [ 200 ], "id": "http_status_in" }, { "id": "json_parses" } ], "seller_ref": "example-weather-agent", "service_url": "https://weather.example.com/forecast.json" }, "kind": "data" } ], "role": "user" } } }, "mcp": "POST tools/call to https://www.gaipagents.com/mcp/agents/witness", "primaryTool": "witness_register_terms" }, "legal": { "corrections": "https://www.gaipagents.com/corrections", "methodology": "https://www.gaipagents.com/methodology", "privacyPolicy": "https://www.gaipagents.com/privacy", "status": "DRAFT_PENDING_LEGAL_REVIEW", "termsOfService": "https://www.gaipagents.com/terms" }, "mcpServerCard": "https://www.gaipagents.com/mcp/agents/witness/server-card", "mcpUrl": "https://www.gaipagents.com/mcp/agents/witness", "priceGbp": 0, "product": { "foldedInto": null, "kind": "PRODUCT", "listed": true, "productId": "witness", "productName": "Witness \u00b7 Deals \u00b7 Sign-offs", "role": "LEAD", "roleLabel": "lead agent", "status": "PUBLIC_FREE", "url": "https://www.gaipagents.com/v1/free/products#witness" } }, "iconUrl": "https://www.gaipagents.com/assets/agents/witness.svg", "name": "GAIP Witness Agent", "preferredTransport": "JSONRPC", "protocolVersion": "1.0", "provider": { "organization": "GAIP", "url": "https://www.gaipagents.com" }, "securityRequirements": [], "securitySchemes": {}, "skills": [ { "description": "Use this when about to depend on a public HTTPS service and you want neutral evidence of what it delivers. Pass `service_url`; `checks` default to HTTP 200 and a non-empty body (also JSON keys, latency, size, regex). Returns a `terms_id`; then call witness_delivery. Input: required service_url; optional checks, data_classification, research_consent, seller_ref. A2A: send message/send with metadata.gaip_tool=\"witness_register_terms\" and one data part holding the input object; MCP: tools/call name \"witness_register_terms\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}" ], "id": "witness-register-terms", "inputModes": [ "application/json" ], "name": "Witness Register Terms", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when asked whether a service delivered what was agreed (\"did the supplier deliver?\"). Pass the `terms_id` from witness_register_terms and mode PUBLIC_REPLAY (GAIP fetches it) or BUYER_SUBMITTED. Returns PASS / FAIL / UNKNOWN per check, what changed since last time, and a receipt. Input: required terms_id, mode; optional body, body_sha256, content_type, continuity_handle, data_classification, episode_id, http_status, independent_operator_id, research_consent, synthetic. A2A: send message/send with metadata.gaip_tool=\"witness_delivery\" and one data part holding the input object; MCP: tools/call name \"witness_delivery\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id and receipt_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"mode\": \"PUBLIC_REPLAY\", \"terms_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_delivery\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "witness-delivery", "inputModes": [ "application/json" ], "name": "Witness Delivery", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when you need a GAIP receipt in another format. Pass `receipt_id` and `format`: x402 (attestation style), erc8004 (validation-response shape) or vc (W3C-VC-like JSON-LD). Ed25519-signed when the runtime key is available; hash chain and Merkle proof; no on-chain write. Input: required receipt_id, format. A2A: send message/send with metadata.gaip_tool=\"gaip_receipt_export\" and one data part holding the input object; MCP: tools/call name \"gaip_receipt_export\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id and receipt_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"format\": \"x402\", \"receipt_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"gaip_receipt_export\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "gaip-receipt-export", "inputModes": [ "application/json" ], "name": "Gaip Receipt Export", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when you hold a GAIP receipt_id and want to confirm it (\"is this receipt genuine?\"). Returns the retained record, hash chain and Merkle inclusion proof. Integrity only: it does not make the underlying claim true. Input: required receipt_id; optional continuity_handle, data_classification, episode_id, independent_operator_id, synthetic. A2A: send message/send with metadata.gaip_tool=\"verify_gaip_receipt\" and one data part holding the input object; MCP: tools/call name \"verify_gaip_receipt\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id and receipt_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"receipt_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"verify_gaip_receipt\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "verify-gaip-receipt", "inputModes": [ "application/json" ], "name": "Verify Gaip Receipt", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when a witnessed delivery failed and you must hand the facts to the other party or a resolver. Pass `terms_id` or a delivery `receipt_id`. Returns one hash-stamped bundle: terms, every check, receipts, timeline, summary. No judgement of who is right. Input: required none; optional continuity_handle, receipt_format, receipt_id, terms_id. A2A: send message/send with metadata.gaip_tool=\"witness_dispute_bundle\" and one data part holding the input object; MCP: tools/call name \"witness_dispute_bundle\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id and receipt_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"body\": \"{\\\"forecast\\\": \\\"sun\\\"}\", \"http_status\": 200, \"mode\": \"BUYER_SUBMITTED\", \"terms_id\": \"\"}, \"keep_from_result\": \"receipt_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_delivery\"}, {\"agent_id\": \"witness\", \"arguments\": {\"receipt_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 3, \"tool\": \"witness_dispute_bundle\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "witness-dispute-bundle", "inputModes": [ "application/json" ], "name": "Witness Dispute Bundle", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when asked to keep an eye on an agent or MCP server (\"tell me if it changes or goes down\"). Pass the `continuity_handle` from any GAIP result, `kind` and `target_url`. GAIP re-checks every 24 hours (3 free watches), receipts each change and can call your webhook. Input: required continuity_handle, kind; optional data_classification, interval_hours, sla, target_url, terms_id, webhook_url. A2A: send message/send with metadata.gaip_tool=\"gaip_watch_register\" and one data part holding the input object; MCP: tools/call name \"gaip_watch_register\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"claims\": [{\"id\": \"c1\", \"text\": \"Returns JSON forecasts over MCP\"}, {\"id\": \"c2\", \"text\": \"Responds within 2 seconds\"}], \"counterparty_id\": \"example-weather-agent\", \"metadata\": {\"protocolVersion\": \"2025-06-18\", \"url\": \"https://weather.example.com/mcp\"}, \"observations\": [{\"claim_id\": \"c1\", \"detail\": \"tools/call returned valid JSON\", \"result\": \"PASS\"}, {\"claim_id\": \"c2\", \"detail\": \"p95 latency 4.8 s over 20 calls\", \"result\": \"FAIL\"}]}, \"keep_from_result\": \"continuity_handle\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"gaip_verify_supplier_claims\"}, {\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"interval_hours\": 24, \"kind\": \"DELIVERY_TERMS\", \"terms_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 3, \"tool\": \"gaip_watch_register\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "gaip-watch-register", "inputModes": [ "application/json" ], "name": "Gaip Watch Register", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when asked which agents or services you are watching. Pass your `continuity_handle`. Returns each watch's kind, target, last verdict, last and next check and webhook endpoint (never the secret). Input: required continuity_handle. A2A: send message/send with metadata.gaip_tool=\"gaip_watch_list\" and one data part holding the input object; MCP: tools/call name \"gaip_watch_list\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"claims\": [{\"id\": \"c1\", \"text\": \"Returns JSON forecasts over MCP\"}, {\"id\": \"c2\", \"text\": \"Responds within 2 seconds\"}], \"counterparty_id\": \"example-weather-agent\", \"metadata\": {\"protocolVersion\": \"2025-06-18\", \"url\": \"https://weather.example.com/mcp\"}, \"observations\": [{\"claim_id\": \"c1\", \"detail\": \"tools/call returned valid JSON\", \"result\": \"PASS\"}, {\"claim_id\": \"c2\", \"detail\": \"p95 latency 4.8 s over 20 calls\", \"result\": \"FAIL\"}]}, \"keep_from_result\": \"continuity_handle\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"gaip_verify_supplier_claims\"}, {\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"interval_hours\": 24, \"kind\": \"DELIVERY_TERMS\", \"terms_id\": \"\"}, \"keep_from_result\": \"watch.watch_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 3, \"tool\": \"gaip_watch_register\"}, {\"agent_id\": \"witness\", \"arguments\": {\"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 4, \"tool\": \"gaip_watch_list\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "gaip-watch-list", "inputModes": [ "application/json" ], "name": "Gaip Watch List", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when asked to stop watching an agent or service. Pass your `continuity_handle` and the `watch_id`. Its stored events are deleted; retained receipts stay verifiable. Input: required continuity_handle, watch_id. A2A: send message/send with metadata.gaip_tool=\"gaip_watch_remove\" and one data part holding the input object; MCP: tools/call name \"gaip_watch_remove\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"claims\": [{\"id\": \"c1\", \"text\": \"Returns JSON forecasts over MCP\"}, {\"id\": \"c2\", \"text\": \"Responds within 2 seconds\"}], \"counterparty_id\": \"example-weather-agent\", \"metadata\": {\"protocolVersion\": \"2025-06-18\", \"url\": \"https://weather.example.com/mcp\"}, \"observations\": [{\"claim_id\": \"c1\", \"detail\": \"tools/call returned valid JSON\", \"result\": \"PASS\"}, {\"claim_id\": \"c2\", \"detail\": \"p95 latency 4.8 s over 20 calls\", \"result\": \"FAIL\"}]}, \"keep_from_result\": \"continuity_handle\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"gaip_verify_supplier_claims\"}, {\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"interval_hours\": 24, \"kind\": \"DELIVERY_TERMS\", \"terms_id\": \"\"}, \"keep_from_result\": \"watch.watch_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 3, \"tool\": \"gaip_watch_register\"}, {\"agent_id\": \"witness\", \"arguments\": {\"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"watch_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 4, \"tool\": \"gaip_watch_remove\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "gaip-watch-remove", "inputModes": [ "application/json" ], "name": "Gaip Watch Remove", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when asked what changed on a watched agent or service. Pass your `continuity_handle` and optionally a `watch_id`. Returns recent change events: verdict before and after, a change summary, the receipt and webhook delivery status. Input: required continuity_handle; optional limit, watch_id. A2A: send message/send with metadata.gaip_tool=\"gaip_watch_events\" and one data part holding the input object; MCP: tools/call name \"gaip_watch_events\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"claims\": [{\"id\": \"c1\", \"text\": \"Returns JSON forecasts over MCP\"}, {\"id\": \"c2\", \"text\": \"Responds within 2 seconds\"}], \"counterparty_id\": \"example-weather-agent\", \"metadata\": {\"protocolVersion\": \"2025-06-18\", \"url\": \"https://weather.example.com/mcp\"}, \"observations\": [{\"claim_id\": \"c1\", \"detail\": \"tools/call returned valid JSON\", \"result\": \"PASS\"}, {\"claim_id\": \"c2\", \"detail\": \"p95 latency 4.8 s over 20 calls\", \"result\": \"FAIL\"}]}, \"keep_from_result\": \"continuity_handle\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"gaip_verify_supplier_claims\"}, {\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"interval_hours\": 24, \"kind\": \"DELIVERY_TERMS\", \"terms_id\": \"\"}, \"keep_from_result\": \"watch.watch_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 3, \"tool\": \"gaip_watch_register\"}, {\"agent_id\": \"witness\", \"arguments\": {\"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"limit\": 10, \"watch_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 4, \"tool\": \"gaip_watch_events\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "gaip-watch-events", "inputModes": [ "application/json" ], "name": "Gaip Watch Events", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when asked to verify citations or quotes (\"do these sources really say this?\"). Pass `citations` (1-20 {url, quote}). GAIP fetches each page once (robots.txt respected); returns QUOTE_FOUND / QUOTE_NOT_FOUND_IN_FETCHED_VERSION / SOURCE_UNREACHABLE..., an excerpt and a receipt. Input: required citations; optional data_classification. A2A: send message/send with metadata.gaip_tool=\"gaip_citation_witness\" and one data part holding the input object; MCP: tools/call name \"gaip_citation_witness\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"citations\": [{\"claimed_title\": \"GAIP\", \"quote\": \"GAIP\", \"url\": \"https://www.gaipagents.com/\"}]}" ], "id": "gaip-citation-witness", "inputModes": [ "application/json" ], "name": "Gaip Citation Witness", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when handed an x402 SAR-shaped receipt (draft proposal shape; may change). Pass `sar_receipt`, optionally the issuer's `public_key`. Returns missing fields, whether receipt_id matches the core and whether the signature checks out against that key. Input: required sar_receipt; optional public_key. A2A: send message/send with metadata.gaip_tool=\"gaip_check_sar_receipt\" and one data part holding the input object; MCP: tools/call name \"gaip_check_sar_receipt\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"public_key\": \"Y8BpzlWPH3EPRQziEPRBeLS1lJBF4xEo9WaxTNbzNp0\", \"sar_receipt\": {\"confidence\": 1.0, \"reason_code\": \"SPEC_MATCH\", \"receipt_id\": \"sha256:17146cdeb5aba1c269130348cdc7d3d96ae55f6e048b81d3baa59d4e3f3b188b\", \"receipt_version\": \"0.1\", \"sig\": \"ogilW-bjlCbYkwwUAIrg_zm_Wuoc6EiRgeErs0RL7llP7FWyX43-LgozZFyCjCXgsViK-A4_aroOo16Q4uvTCg\", \"sig_alg\": \"Ed25519\", \"task_id_hash\": \"sha256:c8b36982316351a28e040a6520df2092c2c87a4ea611c123d04993074b2b6f1d\", \"ts\": \"2026-10-01T09:00:00Z\", \"verdict\": \"PASS\", \"verifier_kid\": \"ef654fc8b615b51c\"}}" ], "id": "gaip-check-sar-receipt", "inputModes": [ "application/json" ], "name": "Gaip Check Sar Receipt", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when you need proof of what an agent or shop page declared on a date. Pass its `url` (optional `since`, `until`). Returns an extract of GAIP's record as kept: entries with chain positions, hashes, daily anchors and a signature. Free preview. Input: required url; optional limit, since, until. A2A: send message/send with metadata.gaip_tool=\"gaip_record_extract\" and one data part holding the input object; MCP: tools/call name \"gaip_record_extract\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"since\": \"2026-09-01\", \"url\": \"https://huggingface.co/mcp\"}" ], "id": "gaip-record-extract", "inputModes": [ "application/json" ], "name": "Gaip Record Extract", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when you are the other party to terms a buyer registered. Pass the `terms_id`, your own `continuity_handle` and `business_purpose_statement` true (businesses only); the buyer confirms it with the `agreement_id`. Returns an `agreement_id` naming both parties. Input: required terms_id; optional acceptance_rule, agreement_cancelled, agreement_id, business_purpose_statement, consumer_contract, continuity_handle, data_classification, finding_mode, mandate_check_receipt, seller_key_proof. A2A: send message/send with metadata.gaip_tool=\"witness_accept_terms\" and one data part holding the input object; MCP: tools/call name \"witness_accept_terms\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id and continuity_handle\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-buyer-side-check\", \"service_url\": \"https://weather.example.com/status.json\"}, \"keep_from_result\": \"continuity_handle (the seller's own)\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"business_purpose_statement\": true, \"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"terms_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 3, \"tool\": \"witness_accept_terms\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "witness-accept-terms", "inputModes": [ "application/json" ], "name": "Witness Accept Terms", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when deliveries exist for an agreement and you want GAIP's signed finding. Pass the `agreement_id` and your `continuity_handle`. Returns MET, NOT_MET or INDETERMINATE on the agreed rule with the records relied on. Evidence only; no sum of money. Input: required agreement_id; optional continuity_handle, data_classification. A2A: send message/send with metadata.gaip_tool=\"witness_finding\" and one data part holding the input object; MCP: tools/call name \"witness_finding\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id and continuity_handle\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-buyer-side-check\", \"service_url\": \"https://weather.example.com/status.json\"}, \"keep_from_result\": \"continuity_handle (the seller's own)\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"business_purpose_statement\": true, \"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"terms_id\": \"\"}, \"keep_from_result\": \"agreement_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 3, \"tool\": \"witness_accept_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"agreement_id\": \"\", \"business_purpose_statement\": true, \"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"terms_id\": \"\"}, \"keep_from_result\": \"event BUSINESS_PURPOSE_CONFIRMED (the buyer's own handle)\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 4, \"tool\": \"witness_accept_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"body\": \"{\\\"forecast\\\": \\\"sun\\\"}\", \"http_status\": 200, \"mode\": \"BUYER_SUBMITTED\", \"terms_id\": \"\"}, \"keep_from_result\": \"receipt_id and verdict\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 5, \"tool\": \"witness_delivery\"}, {\"agent_id\": \"witness\", \"arguments\": {\"agreement_id\": \"\", \"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 6, \"tool\": \"witness_finding\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "witness-finding", "inputModes": [ "application/json" ], "name": "Witness Finding", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when a role (APPROVER, REVIEWER, OWNER, OPERATOR or a hashed role_id) decided on an agent's proposal. Pass `proposal_sha256`, `decision` (APPROVED, REFUSED, CHANGED), optionally `agreement_id`. Returns a chained, signed entry of the role's decision, never GAIP's. Input: required proposal_sha256, decision; optional agent_url, agreement_id, continuity_handle, data_classification, reason_sha256, role, role_id. A2A: send message/send with metadata.gaip_tool=\"witness_signoff\" and one data part holding the input object; MCP: tools/call name \"witness_signoff\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id and continuity_handle\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-buyer-side-check\", \"service_url\": \"https://weather.example.com/status.json\"}, \"keep_from_result\": \"continuity_handle (the seller's own)\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"business_purpose_statement\": true, \"continuity_handle\": {\"continuity_id\": \"\", \"token\": \"\"}, \"terms_id\": \"\"}, \"keep_from_result\": \"agreement_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 3, \"tool\": \"witness_accept_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"agreement_id\": \"\", \"decision\": \"APPROVED\", \"proposal_sha256\": \"a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1a3f1\", \"role\": \"APPROVER\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 4, \"tool\": \"witness_signoff\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "witness-signoff", "inputModes": [ "application/json" ], "name": "Witness Signoff", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when you, the buyer, chose a public service and want its delivery checked end to end. Pass `service_url`, `checks` and explicit_read_only_consent=true. GAIP preflights it and records your checks; returns a `terms_id` for assurance_complete. Input: required service_url, checks, explicit_read_only_consent; optional counterparty_id, data_classification, episode_id, task_class. A2A: send message/send with metadata.gaip_tool=\"assurance_prepare\" and one data part holding the input object; MCP: tools/call name \"assurance_prepare\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"counterparty_id\": \"example-weather-agent\", \"explicit_read_only_consent\": true, \"service_url\": \"https://weather.example.com/forecast.json\", \"task_class\": \"weather_forecast\"}" ], "id": "assurance-prepare", "inputModes": [ "application/json" ], "name": "Assurance Prepare", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when finishing a Buyer Assurance check. Pass the `terms_id` from assurance_prepare and mode PUBLIC_REPLAY (GAIP replays the service) or BUYER_SUBMITTED. Returns PASS / FAIL / UNKNOWN per check and a delivery receipt. Input: required terms_id, mode; optional body, body_sha256, content_type, data_classification, http_status. A2A: send message/send with metadata.gaip_tool=\"assurance_complete\" and one data part holding the input object; MCP: tools/call name \"assurance_complete\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"buyer-assurance\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"counterparty_id\": \"example-weather-agent\", \"explicit_read_only_consent\": true, \"service_url\": \"https://weather.example.com/forecast.json\", \"task_class\": \"weather_forecast\"}, \"keep_from_result\": \"terms_id and receipt_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/buyer-assurance\", \"step\": 1, \"tool\": \"assurance_prepare\"}, {\"agent_id\": \"witness\", \"arguments\": {\"mode\": \"PUBLIC_REPLAY\", \"terms_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"assurance_complete\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "assurance-complete", "inputModes": [ "application/json" ], "name": "Assurance Complete", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when you hold a Buyer Assurance terms or delivery receipt_id and want to confirm it. Returns the retained record and its integrity proof (integrity only). Input: required receipt_id. A2A: send message/send with metadata.gaip_tool=\"assurance_verify\" and one data part holding the input object; MCP: tools/call name \"assurance_verify\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"buyer-assurance\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"counterparty_id\": \"example-weather-agent\", \"explicit_read_only_consent\": true, \"service_url\": \"https://weather.example.com/forecast.json\", \"task_class\": \"weather_forecast\"}, \"keep_from_result\": \"terms_id and receipt_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/buyer-assurance\", \"step\": 1, \"tool\": \"assurance_prepare\"}, {\"agent_id\": \"witness\", \"arguments\": {\"receipt_id\": \"\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"assurance_verify\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "assurance-verify", "inputModes": [ "application/json" ], "name": "Assurance Verify", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this to check what an agent, API or supplier claims. Pass `claims` (each with an `id`; add `check_url` and GAIP tests it now), your `observations` and `metadata`. Returns per claim what GAIP saw, what you reported and whether they agree. Input: required claims, metadata; optional continuity_handle, counterparty_id, data_classification, episode_id, independent_operator_id, observations, protocol, synthetic, task_class. A2A: send message/send with metadata.gaip_tool=\"gaip_verify_supplier_claims\" and one data part holding the input object; MCP: tools/call name \"gaip_verify_supplier_claims\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"claims\": [{\"id\": \"c1\", \"text\": \"Returns JSON forecasts over MCP\"}, {\"id\": \"c2\", \"text\": \"Responds within 2 seconds\"}], \"counterparty_id\": \"example-weather-agent\", \"metadata\": {\"protocolVersion\": \"2025-06-18\", \"url\": \"https://weather.example.com/mcp\"}, \"observations\": [{\"claim_id\": \"c1\", \"detail\": \"tools/call returned valid JSON\", \"result\": \"PASS\"}, {\"claim_id\": \"c2\", \"detail\": \"p95 latency 4.8 s over 20 calls\", \"result\": \"FAIL\"}]}" ], "id": "gaip-verify-supplier-claims", "inputModes": [ "application/json" ], "name": "Gaip Verify Supplier Claims", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when asked what evidence exists about an agent before delegating to it. Pass its `counterparty_id` and any `observations`. Returns task-specific evidence coverage, conflicts, gaps and GAIP's own earlier checks of it, with a receipt. Never a trust score or recommendation. Input: required none; optional continuity_handle, counterparty_id, data_classification, episode_id, independent_operator_id, max_age_days, observations, synthetic, task_class. A2A: send message/send with metadata.gaip_tool=\"inspect_counterparty_evidence\" and one data part holding the input object; MCP: tools/call name \"inspect_counterparty_evidence\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"counterparty_id\": \"example-weather-agent\", \"observations\": [{\"claim\": \"Publishes a public weather_forecast skill\", \"evidence_digest\": \"3f0a9c1e5b7d2468ace013579bdf2468ace013579bdf2468ace013579bdf2468\", \"lifecycle_state\": \"observed\", \"observed_at\": \"2026-09-27T12:00:00Z\", \"source\": \"https://forecast.example.com/.well-known/agent-card.json\"}, {\"claim\": \"Returned a London forecast in 1.2 s\", \"lifecycle_state\": \"OBSERVED\", \"observed_at\": \"2026-09-27T12:05:00Z\", \"source\": \"caller_task_log\"}], \"task_class\": \"weather_forecast\"}" ], "id": "inspect-counterparty-evidence", "inputModes": [ "application/json" ], "name": "Inspect Counterparty Evidence", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when an insurer, auditor or buyer asks what evidence exists about an agent or supplier. Pass its `subject` (public id or https URL). Returns conformance, watch, witness, repair and incident records with Merkle proofs, plus gaps. A compilation, not certification or advice. Input: required subject; optional requester, scope. A2A: send message/send with metadata.gaip_tool=\"gaip_evidence_pack\" and one data part holding the input object; MCP: tools/call name \"gaip_evidence_pack\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"requester\": {\"purpose\": \"INSURER\"}, \"scope\": {\"max_items\": 50, \"since\": \"2026-09-01\"}, \"subject\": {\"counterparty_id\": \"example-weather-agent\"}}" ], "id": "gaip-evidence-pack", "inputModes": [ "application/json" ], "name": "Gaip Evidence Pack", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when something went wrong with an agent and you need the facts in order. Pass the `receipt_ids` you hold and attributed `observations`. Returns a verified, source-attributed timeline with an EU AI Act Art. 73 reference aid. No fault, cause or liability finding. Input: required none; optional ai_system_ref, data_classification, observations, receipt_ids, title. A2A: send message/send with metadata.gaip_tool=\"gaip_incident_bundle\" and one data part holding the input object; MCP: tools/call name \"gaip_incident_bundle\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"chain\": [{\"agent_id\": \"witness\", \"arguments\": {\"checks\": [{\"allowed\": [200], \"id\": \"http_status_in\"}, {\"id\": \"json_parses\"}], \"seller_ref\": \"example-weather-agent\", \"service_url\": \"https://weather.example.com/forecast.json\"}, \"keep_from_result\": \"terms_id and receipt_id\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 1, \"tool\": \"witness_register_terms\"}, {\"agent_id\": \"witness\", \"arguments\": {\"ai_system_ref\": \"example-weather-agent\", \"observations\": [{\"observed_at_utc\": \"2026-09-27T10:00:00Z\", \"source\": \"our uptime monitor\", \"source_type\": \"AUTOMATED_MONITOR\", \"statement\": \"HTTP 503 from the forecast endpoint for 12 minutes\"}], \"receipt_ids\": [\"\"], \"title\": \"Forecast endpoint returned errors\"}, \"keep_from_result\": \"result\", \"mcp_endpoint\": \"https://www.gaipagents.com/mcp/agents/witness\", \"step\": 2, \"tool\": \"gaip_incident_bundle\"}], \"note\": \"Run the steps in order; replace each angle-bracket value with the named field from the result of the named earlier step.\"}" ], "id": "gaip-incident-bundle", "inputModes": [ "application/json" ], "name": "Gaip Incident Bundle", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] }, { "description": "Use this when asked whether an outcome-priced task delivered and what it cost. Pass `episode_id`, `task` (acceptance_criteria), `delivery`, `costs`; `delivery_check` {url, checks} has GAIP test delivery now. Returns a dossier, running totals and a receipt. No ROI claim. Input: required episode_id, task, delivery, costs; optional baseline_cost_gbp, continuity_handle, counterparty_id, currency, data_classification, delivery_check, downstream_use, evidence_refs, fx_to_gbp, independent_operator_id, synthetic, task_class. A2A: send message/send with metadata.gaip_tool=\"gaip_measure_outcome_value\" and one data part holding the input object; MCP: tools/call name \"gaip_measure_outcome_value\" at https://www.gaipagents.com/mcp/agents/witness.", "examples": [ "{\"baseline_cost_gbp\": \"12.00\", \"costs\": {\"agent_gbp\": \"0.40\", \"compute_gbp\": \"0.12\", \"human_review_gbp\": \"3.50\", \"repair_gbp\": \"0\"}, \"counterparty_id\": \"example-weather-agent\", \"delivery\": {\"receipt_id\": \"example-receipt-1\", \"status\": \"ACCEPTED\"}, \"downstream_use\": {\"evidence_ref\": \"example-ticket-4411\", \"status\": \"USED\"}, \"episode_id\": \"example-episode-1\", \"observed_at_utc\": \"2026-09-27T21:00:00Z\", \"task\": {\"acceptance_criteria\": \"Forecast JSON for London returned within 5 seconds\"}, \"task_class\": \"weather_forecast\", \"unit_label\": \"forecast\", \"units\": 7}" ], "id": "gaip-measure-outcome-value", "inputModes": [ "application/json" ], "name": "Gaip Measure Outcome Value", "outputModes": [ "application/json" ], "tags": [ "delivery", "evidence", "receipts" ] } ], "supportedInterfaces": [ { "protocolBinding": "JSONRPC", "protocolVersion": "1.0", "url": "https://www.gaipagents.com/a2a/witness-agent" } ], "url": "https://www.gaipagents.com/a2a/witness-agent", "version": "1.0.0" }, "agent_id": "witness", "agentverse": { "a2a_agent_card": "https://www.gaipagents.com/agents/witness/.well-known/agent-card.json", "a2a_endpoint": "https://www.gaipagents.com/a2a/witness-agent", "agent_id": "witness", "chat_protocol_required": true, "description": "Registers caller-declared delivery checks, observes supplied public results and returns a verifiable retained receipt. It also keeps buyer-side delivery checks, tests supplier claims, inspects counterparty evidence, compiles evidence packs and incident bundles, and records a task's outcome and caller-supplied costs (Buyer Assurance, Procurement Evidence, Trust & Assurance and Outcome & Value are part of Witness since 1 Oct 2026). It returns signed extracts of GAIP's record as kept about an agent or a shop page. Part of GAIP Witness \u00b7 Deals \u00b7 Sign-offs (lead agent).", "name": "GAIP Witness Agent", "price_gbp": 0, "product": { "foldedInto": null, "kind": "PRODUCT", "listed": true, "productId": "witness", "productName": "Witness \u00b7 Deals \u00b7 Sign-offs", "role": "LEAD", "roleLabel": "lead agent", "status": "PUBLIC_FREE", "url": "https://www.gaipagents.com/v1/free/products#witness" }, "proof_boundary": "This public profile is ready for registration; Agentverse discovery is not claimed until a registry receipt exists.", "protocols": [ "A2A", "MCP", "HTTPS" ], "public": true, "publication_approval": "FOUNDER_GRANTED_2026-09-24", "registration_state": "PENDING_AGENTVERSE_IDENTITY_LINK", "schema_version": "gaip.agentverse.profile.v2", "tags": [ "delivery", "evidence", "receipts" ] }, "coo_reporting": "ENABLED", "engineering_reliability_monitoring": "ENABLED", "erc8004": { "active": true, "description": "Registers caller-declared delivery checks, observes supplied public results and returns a verifiable retained receipt. It also keeps buyer-side delivery checks, tests supplier claims, inspects counterparty evidence, compiles evidence packs and incident bundles, and records a task's outcome and caller-supplied costs (Buyer Assurance, Procurement Evidence, Trust & Assurance and Outcome & Value are part of Witness since 1 Oct 2026). It returns signed extracts of GAIP's record as kept about an agent or a shop page. Part of GAIP Witness \u00b7 Deals \u00b7 Sign-offs (lead agent).", "gaip": { "agent_id": "witness", "mainnet_claimed": false, "onchain_state": "PENDING_WALLET_SIGNED_REGISTRATION", "spend_authorized": false, "target_network": "BASE_SEPOLIA" }, "image": "https://www.gaipagents.com/assets/agents/witness.svg", "name": "GAIP Witness Agent", "registrations": [], "services": [ { "endpoint": "https://www.gaipagents.com/agents/witness", "name": "web" }, { "endpoint": "https://www.gaipagents.com/agents/witness/.well-known/agent-card.json", "name": "A2A", "version": "1.0" }, { "endpoint": "https://www.gaipagents.com/mcp/agents/witness", "name": "MCP", "version": "2025-06-18" }, { "endpoint": "https://www.gaipagents.com/v1/distribution/oasf/witness.json", "name": "OASF", "version": "1.0.0" } ], "supportedTrust": [ "reputation" ], "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1", "x402Support": false }, "external_acceptance_receipts": [ { "evidence_url": "https://github.com/tjcgraham-rgb/-gaip-agent-to-art-prototype/actions/runs/36324732597", "name": "io.github.tjcgraham-rgb/gaip-witness", "surface": "OFFICIAL_MCP_REGISTRY", "version": "1.0.0" } ], "generated_at_utc": "2026-10-18T01:24:37.490701+00:00", "mcp": { "description": "Registers caller-declared delivery checks, observes supplied public results and returns a verifiable retained receipt. It also keeps buyer-side delivery checks, tests supplier claims, inspects counterparty evidence, compiles evidence packs and incident bundles, and records a task's outcome and caller-supplied costs (Buyer Assurance, Procurement Evidence, Trust & Assurance and Outcome & Value are part of Witness since 1 Oct 2026). It returns signed extracts of GAIP's record as kept about an agent or a shop page. Part of GAIP Witness \u00b7 Deals \u00b7 Sign-offs (lead agent).", "endpoint": "https://www.gaipagents.com/mcp/agents/witness", "name": "io.github.tjcgraham-rgb/gaip-witness", "privacyPolicy": "https://www.gaipagents.com/privacy", "product": { "foldedInto": null, "kind": "PRODUCT", "listed": true, "productId": "witness", "productName": "Witness \u00b7 Deals \u00b7 Sign-offs", "role": "LEAD", "roleLabel": "lead agent", "status": "PUBLIC_FREE", "url": "https://www.gaipagents.com/v1/free/products#witness" }, "protocolVersion": "2025-06-18", "publication": { "acceptanceNotImplied": true, "descriptorLive": true, "officialMcpRegistry": "PENDING_INDIVIDUAL_REGISTRY_ACCEPTANCE" }, "registryVersion": "1.5.0", "repository": { "source": "github", "url": "https://github.com/tjcgraham-rgb/-gaip-agent-to-art-prototype" }, "schema_version": "gaip.agent-mcp-descriptor.v1", "serverCard": "https://www.gaipagents.com/mcp/agents/witness/server-card", "termsOfService": "https://www.gaipagents.com/terms", "title": "GAIP Witness Agent", "tools": [ { "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": false, "readOnlyHint": false }, "description": "Register caller-declared checks for a public HTTPS service. GAIP records a terms receipt in its own history and does not contact the service. This does not verify seller agreement or payment.", "inputSchema": { "properties": { "checks": { "maxItems": 8, "minItems": 1, "type": "array" }, "data_classification": { "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ] }, "research_consent": { "default": false, "description": "Optional, default false. true lets this record be counted, never named, in GAIP's monthly aggregate research figures (for example for insurers).", "type": "boolean" }, "seller_ref": { "type": "string" }, "service_url": { "type": "string" } }, "required": [ "data_classification", "seller_ref", "service_url", "checks" ], "type": "object" }, "name": "witness_register_terms", "title": "Register delivery checks" }, { "annotations": { "destructiveHint": false, "openWorldHint": true, "readOnlyHint": true }, "description": "Compare a registered caller assertion against a later public replay or submitted public response. Unknown when evidence is unavailable; no original transaction or seller agreement proof.", "inputSchema": { "additionalProperties": true, "properties": { "body": { "maxLength": 32768, "type": "string" }, "body_sha256": { "type": "string" }, "content_type": { "type": "string" }, "continuity_handle": { "additionalProperties": false, "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "data_classification": { "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "episode_id": { "type": "string" }, "http_status": { "type": "integer" }, "independent_operator_id": { "type": "string" }, "mode": { "enum": [ "BUYER_SUBMITTED", "PUBLIC_REPLAY" ], "type": "string" }, "research_consent": { "default": false, "description": "Optional, default false. true lets this delivery check be counted, never named, in GAIP's monthly aggregate research figures.", "type": "boolean" }, "synthetic": { "type": "boolean" }, "terms_id": { "type": "string" } }, "required": [ "data_classification", "terms_id", "mode" ], "type": "object" }, "name": "witness_delivery", "title": "Check public delivery evidence" }, { "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true }, "description": "Export one GAIP receipt as x402 Settlement-Attestation-style JSON, an ERC-8004 validation-response-shaped document for off-chain publication, or an unsigned W3C-VC-like JSON-LD envelope. Ed25519-signed when the runtime key is available (otherwise unsigned, with the reason); integrity also via hash chain, Merkle proof and a SHA-256 digest_manifest; no on-chain write.", "inputSchema": { "additionalProperties": false, "properties": { "format": { "enum": [ "x402", "erc8004", "vc" ], "type": "string" }, "receipt_id": { "description": "The receipt_id exactly as an earlier GAIP result returned it. Have none? Call with any id: the refusal lists example_receipt_ids from GAIP's own public records.", "maxLength": 128, "minLength": 1, "type": "string" } }, "required": [ "receipt_id", "format" ], "type": "object" }, "name": "gaip_receipt_export", "title": "Export a GAIP receipt" }, { "annotations": { "destructiveHint": false, "openWorldHint": false, "readOnlyHint": true }, "description": "Look up a retained GAIP receipt by ID and verify its hash chain and Merkle inclusion proof without creating adoption credit.", "inputSchema": { "additionalProperties": true, "properties": { "continuity_handle": { "additionalProperties": false, "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "data_classification": { "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "episode_id": { "type": "string" }, "independent_operator_id": { "type": "string" }, "receipt_id": { "maxLength": 128, "minLength": 1, "type": "string" }, "synthetic": { "type": "boolean" } }, "required": [ "receipt_id" ], "type": "object" }, "name": "verify_gaip_receipt" }, { "annotations": { "destructiveHint": false, "openWorldHint": false, "readOnlyHint": true }, "description": "Gather everything GAIP holds about one Witness agreement (terms, every delivery check, receipts with signatures, replay events, your own SLA breaches, a timeline) into one hash-stamped, no-fault bundle (Ed25519-signed when the key is available). Pass terms_id or a delivery receipt_id.", "inputSchema": { "properties": { "continuity_handle": { "description": "Optional: the continuity_handle that registered a DELIVERY_SLA watch on these terms; adds your SLA breaches.", "type": "object" }, "receipt_format": { "default": "gaip", "description": "gaip (default) or x402_sar: also give each delivery in the x402 SAR draft shape.", "enum": [ "gaip", "x402_sar" ], "type": "string" }, "receipt_id": { "description": "A delivery receipt_id from witness_delivery.", "type": "string" }, "terms_id": { "description": "Or the terms_id (wt_...) of the agreement.", "type": "string" } }, "type": "object" }, "name": "witness_dispute_bundle", "title": "Export a delivery evidence bundle" }, { "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": true, "readOnlyHint": false }, "description": "Register a free watch (max 3, every 24h+) on an agent's readiness, a published card, or witness delivery terms; optional signed webhook on change.", "inputSchema": { "additionalProperties": false, "properties": { "continuity_handle": { "description": "The continuity_handle from an earlier GAIP result; proves you own these watches.", "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "data_classification": { "default": "PUBLIC", "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "interval_hours": { "default": 24, "description": "Hours between checks: 24 minimum on the free tier; 1 for DELIVERY_SLA.", "maximum": 168, "minimum": 1, "type": "integer" }, "kind": { "enum": [ "AGENT_READINESS", "DELIVERY_TERMS", "SUPPLIER_CARD", "DELIVERY_SLA" ], "type": "string" }, "sla": { "description": "DELIVERY_SLA only: service-level terms checked on every observation, any of min_uptime_pct, max_latency_ms, required_fields (JSON key paths), freshness_field + max_age_seconds; optional uptime_window_hours, min_observations. Results go only to you.", "type": "object" }, "target_url": { "description": "Public https URL (AGENT_READINESS, SUPPLIER_CARD). No query string.", "format": "uri", "maxLength": 2048, "type": "string" }, "terms_id": { "description": "DELIVERY_TERMS or DELIVERY_SLA: terms_id from witness_register_terms.", "type": "string" }, "webhook_url": { "description": "Optional: your own public https endpoint for signed change events.", "format": "uri", "maxLength": 2048, "type": "string" } }, "required": [ "continuity_handle", "kind" ], "type": "object" }, "name": "gaip_watch_register", "title": "Watch an agent, card or delivery" }, { "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true }, "description": "List your watches with last verdict, last check and next due time.", "inputSchema": { "additionalProperties": false, "properties": { "continuity_handle": { "description": "The continuity_handle from an earlier GAIP result; proves you own these watches.", "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" } }, "required": [ "continuity_handle" ], "type": "object" }, "name": "gaip_watch_list", "title": "List my watches" }, { "annotations": { "destructiveHint": true, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": false }, "description": "Stop one of your watches and delete its events.", "inputSchema": { "additionalProperties": false, "properties": { "continuity_handle": { "description": "The continuity_handle from an earlier GAIP result; proves you own these watches.", "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "watch_id": { "type": "string" } }, "required": [ "continuity_handle", "watch_id" ], "type": "object" }, "name": "gaip_watch_remove", "title": "Remove a watch" }, { "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true }, "description": "Read recent change events (with receipts and webhook delivery status) for your watches.", "inputSchema": { "additionalProperties": false, "properties": { "continuity_handle": { "description": "The continuity_handle from an earlier GAIP result; proves you own these watches.", "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "limit": { "maximum": 50, "minimum": 1, "type": "integer" }, "watch_id": { "type": "string" } }, "required": [ "continuity_handle" ], "type": "object" }, "name": "gaip_watch_events", "title": "Read watch change events" }, { "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": true, "readOnlyHint": true }, "description": "Check whether cited public web pages contain the quoted text. Pass `citations` (1-20 objects {url, quote?, claimed_title?, claimed_date?}). GAIP fetches each page once (robots.txt respected), reports QUOTE_FOUND / QUOTE_NOT_FOUND_IN_FETCHED_VERSION / SOURCE_UNREACHABLE / SOURCE_NOT_FOUND_404 / CONTENT_NOT_TEXT / ROBOTS_DISALLOWED per citation with the time, HTTP status, SHA-256 of the fetched bytes and a matched excerpt of at most 300 characters, and retains a receipt. Facts about the fetched version only; pages change. Not legal advice and not a judgement on any author.", "inputSchema": { "additionalProperties": true, "properties": { "citations": { "items": { "additionalProperties": false, "properties": { "claimed_date": { "maxLength": 64, "type": "string" }, "claimed_title": { "maxLength": 500, "type": "string" }, "quote": { "maxLength": 2000, "type": "string" }, "url": { "format": "uri", "maxLength": 2048, "type": "string" } }, "required": [ "url" ], "type": "object" }, "maxItems": 20, "minItems": 1, "type": "array" }, "data_classification": { "default": "PUBLIC", "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" } }, "required": [ "citations" ], "type": "object" }, "name": "gaip_citation_witness", "title": "Witness citations" }, { "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true }, "description": "Check an x402 SAR-shaped receipt (draft proposal shape, issue #1195; may change): fields present, receipt_id recomputed from the core fields, and whether the Ed25519 signature checks out against a public key you supply or GAIP's published key named by verifier_kid. Fetches and keeps nothing; payment fields are not acted on.", "inputSchema": { "additionalProperties": false, "properties": { "public_key": { "description": "Optional: the issuer's Ed25519 public key, raw 32 bytes base64url or a JWK {kty: OKP, crv: Ed25519, x}. Omit to use GAIP's published keys.", "oneOf": [ { "maxLength": 512, "type": "string" }, { "type": "object" } ] }, "sar_receipt": { "description": "The SAR receipt object (or a whole gaip_receipt_export x402 result).", "type": "object" } }, "required": [ "sar_receipt" ], "type": "object" }, "name": "gaip_check_sar_receipt", "title": "Check an x402 SAR receipt" }, { "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true }, "description": "Returns an extract of GAIP's record as kept about an agent card, MCP endpoint or shop product page: Observatory change-log and capture entries, shop panel changes and listing history in a date range, each with its chain position, hash and covering daily anchor, Ed25519-signed. Free preview; shows what GAIP recorded, not that it is true.", "inputSchema": { "additionalProperties": false, "examples": [ { "since": "2026-09-01", "url": "https://huggingface.co/mcp" } ], "properties": { "limit": { "description": "Optional: most entries to return, newest kept (default 50).", "maximum": 200, "minimum": 1, "type": "integer" }, "since": { "description": "Optional: start of the range (YYYY-MM-DD or RFC 3339).", "maxLength": 40, "type": "string" }, "until": { "description": "Optional: end of the range (YYYY-MM-DD, inclusive, or RFC 3339).", "maxLength": 40, "type": "string" }, "url": { "description": "The A2A agent card, MCP endpoint or shop product page URL, exactly as recorded.", "maxLength": 2048, "type": "string" } }, "required": [ "url" ], "type": "object" }, "name": "gaip_record_extract", "title": "Extract of GAIP's record about a URL" }, { "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": false, "readOnlyHint": false }, "description": "Deals: the second party accepts terms the buyer registered with witness_register_terms, presenting its own continuity handle. GAIP issues an agreement_id naming both parties, the terms hash, the acceptance rule (delivered_when LATEST_MET or ANY_MET, an optional deadline, who may ask for the finding) and the finding mode (EVIDENCE_ONLY; EXPERT_DETERMINATION once the buyer confirms it with the agreement_id). Businesses only: the seller passes business_purpose_statement true and the buyer confirms it with the agreement_id; no finding until both have. consumer_contract true withdraws the finding. GAIP holds no money and verifies no legal identity.", "inputSchema": { "additionalProperties": false, "properties": { "acceptance_rule": { "additionalProperties": false, "description": "What counts as delivered, by when, and who may ask for the finding.", "properties": { "by": { "description": "Deadline, RFC 3339 (optional).", "type": [ "string", "null" ] }, "delivered_when": { "default": "LATEST_MET", "enum": [ "LATEST_MET", "ANY_MET" ], "type": "string" }, "finding_may_be_called_by": { "default": "EITHER", "enum": [ "EITHER", "BUYER", "SELLER" ], "type": "string" } }, "type": "object" }, "agreement_cancelled": { "default": false, "description": "Only with agreement_id: either party records that it cancelled the agreement (recorded as that party's statement and published in GAIP's revocation feed).", "type": "boolean" }, "agreement_id": { "description": "Only on an existing agreement: the buyer confirms business purpose or expert determination, or either party declares a consumer contract.", "type": "string" }, "business_purpose_statement": { "description": "Required true from the seller at acceptance and from the buyer (with agreement_id): you act for purposes relating to your trade, business, craft or profession and the deal is not with a consumer. No finding until both parties have stated it.", "type": "boolean" }, "consumer_contract": { "default": false, "description": "true if either party is a consumer: evidence summary only, no finding.", "type": "boolean" }, "continuity_handle": { "description": "Required: your own continuity handle (continuity_id, token).", "type": "object" }, "data_classification": { "description": "PUBLIC or NON_PERSONAL_PUBLIC.", "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "finding_mode": { "default": "EVIDENCE_ONLY", "description": "EVIDENCE_ONLY, or EXPERT_DETERMINATION (needs the buyer's confirmation).", "enum": [ "EVIDENCE_ONLY", "EXPERT_DETERMINATION" ], "type": "string" }, "mandate_check_receipt": { "description": "Optional: the gaip_check_mandate receipt you obtained (or {receipt_sha256, state}) if you act for a person; its state is recorded beside the acceptance as a fact and shown in the finding.", "type": "object" }, "seller_key_proof": { "description": "Optional: {jwk, jws over the terms_id, host}; GAIP checks the signature and whether the host published that key.", "type": "object" }, "terms_id": { "description": "wt_... from witness_register_terms.", "type": "string" } }, "required": [ "data_classification", "terms_id" ], "type": "object" }, "name": "witness_accept_terms", "title": "Accept registered terms (the other party)" }, { "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": false, "readOnlyHint": false }, "description": "Deals: for an agreement_id, GAIP compares its own delivery records for the agreed terms against the acceptance rule and issues a signed finding record: MET, NOT_MET or INDETERMINATE, with the records relied on and nothing else, plus A-Comm evidence-artefact and Boson decideDispute export shapes. Evidence only unless both parties confirmed expert determination; never a court process, never a sum of money; a consumer contract gets the evidence summary and no finding. A party's own continuity handle is required.", "inputSchema": { "additionalProperties": false, "properties": { "agreement_id": { "description": "wa_... from witness_accept_terms.", "type": "string" }, "continuity_handle": { "description": "Required: a party's own continuity handle.", "type": "object" }, "data_classification": { "description": "PUBLIC or NON_PERSONAL_PUBLIC.", "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" } }, "required": [ "data_classification", "agreement_id" ], "type": "object" }, "name": "witness_finding", "title": "Was the agreed rule met? (signed finding)" }, { "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": false, "readOnlyHint": false }, "description": "Sign-offs: record that a role (APPROVER, REVIEWER, OWNER, OPERATOR, or your own opaque role_id, kept only as a keyed hash) recorded a decision (APPROVED, REFUSED, CHANGED) on an agent's proposal, given as its SHA-256, at the recorded time; optionally against a Deals agreement_id. Chained and Ed25519-signed with every Witness entry. It records the role's decision, never GAIP's; no free text.", "inputSchema": { "additionalProperties": false, "properties": { "agent_url": { "description": "Optional: public https URL of the agent whose proposal was decided (the system identifier).", "maxLength": 2048, "type": "string" }, "agreement_id": { "description": "Optional: the wa_... Deals agreement from witness_accept_terms this decision concerns; the finding then lists it.", "type": "string" }, "continuity_handle": { "description": "Optional: your continuity handle (continuity_id, token); one is issued with the receipt when absent.", "type": "object" }, "data_classification": { "description": "PUBLIC or NON_PERSONAL_PUBLIC.", "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "decision": { "description": "The decision as recorded: APPROVED, REFUSED or CHANGED.", "enum": [ "APPROVED", "REFUSED", "CHANGED" ], "type": "string" }, "proposal_sha256": { "description": "SHA-256 (64 hex) of what the agent proposed, computed by you; the proposal itself is never sent.", "maxLength": 64, "minLength": 64, "type": "string" }, "reason_sha256": { "description": "Optional: SHA-256 (64 hex) of the reason you keep; anything but a hash is refused.", "maxLength": 64, "minLength": 64, "type": "string" }, "role": { "description": "The role that decided: APPROVER, REVIEWER, OWNER or OPERATOR. Any other text is refused (ROLE_VOCABULARY); use role_id for your own id.", "enum": [ "APPROVER", "REVIEWER", "OWNER", "OPERATOR" ], "type": "string" }, "role_id": { "description": "Optional: your own opaque role identifier (one token, no spaces). GAIP keeps it only as a keyed hash, never in clear.", "maxLength": 200, "type": "string" } }, "required": [ "data_classification", "proposal_sha256", "decision" ], "type": "object" }, "name": "witness_signoff", "title": "Record a role's decision on a proposal (sign-off)" }, { "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": true, "readOnlyHint": false }, "description": "Preflight one buyer-selected public service and record caller-declared delivery checks. No supplier appointment, call, contract or payment.", "inputSchema": { "properties": { "checks": { "maxItems": 8, "minItems": 1, "type": "array" }, "counterparty_id": { "type": "string" }, "data_classification": { "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ] }, "episode_id": { "type": "string" }, "explicit_read_only_consent": { "const": true }, "service_url": { "type": "string" }, "task_class": { "type": "string" } }, "required": [ "data_classification", "counterparty_id", "service_url", "task_class", "checks", "explicit_read_only_consent" ], "type": "object" }, "name": "assurance_prepare", "title": "Prepare a buyer-side delivery check" }, { "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": true, "readOnlyHint": false }, "description": "Check a buyer-submitted public response or later public replay against registered terms and verify the retained receipt.", "inputSchema": { "properties": { "body": { "type": "string" }, "body_sha256": { "type": "string" }, "content_type": { "type": "string" }, "data_classification": { "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ] }, "http_status": { "type": "integer" }, "mode": { "enum": [ "BUYER_SUBMITTED", "PUBLIC_REPLAY" ] }, "terms_id": { "type": "string" } }, "required": [ "data_classification", "terms_id", "mode" ], "type": "object" }, "name": "assurance_complete", "title": "Complete a buyer-side delivery check" }, { "annotations": { "destructiveHint": false, "openWorldHint": false, "readOnlyHint": true }, "description": "Verify a retained Buyer Assurance terms or delivery receipt without assigning external-use credit.", "inputSchema": { "properties": { "receipt_id": { "type": "string" } }, "required": [ "receipt_id" ], "type": "object" }, "name": "assurance_verify", "title": "Verify a Buyer Assurance receipt" }, { "annotations": { "destructiveHint": false, "openWorldHint": false, "readOnlyHint": false }, "description": "Compare supplied public claims and task observations, check declared metadata, and return dispositions with a retained receipt. No supplier approval or independent claim verification.", "inputSchema": { "additionalProperties": true, "properties": { "claims": { "items": { "type": "object" }, "maxItems": 20, "minItems": 1, "type": "array" }, "continuity_handle": { "additionalProperties": false, "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "counterparty_id": { "type": "string" }, "data_classification": { "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "episode_id": { "type": "string" }, "independent_operator_id": { "type": "string" }, "metadata": { "type": "object" }, "observations": { "items": { "type": "object" }, "maxItems": 30, "type": "array" }, "protocol": { "enum": [ "A2A", "MCP", "OPENAPI" ], "type": "string" }, "synthetic": { "type": "boolean" }, "task_class": { "type": "string" } }, "required": [ "data_classification", "counterparty_id", "task_class", "protocol", "claims", "metadata" ], "type": "object" }, "name": "gaip_verify_supplier_claims", "title": "Compare supplier claims" }, { "annotations": { "destructiveHint": false, "openWorldHint": false, "readOnlyHint": true }, "description": "Inspect supplied task-specific counterparty observations without producing a universal trust score.", "inputSchema": { "additionalProperties": true, "properties": { "continuity_handle": { "additionalProperties": false, "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "counterparty_id": { "type": "string" }, "data_classification": { "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "episode_id": { "type": "string" }, "independent_operator_id": { "type": "string" }, "max_age_days": { "description": "Optional freshness window (default 30): GAIP history records older than this are STALE and do not count toward evidence_sufficiency.", "maximum": 365, "minimum": 1, "type": "integer" }, "observations": { "items": { "type": "object" }, "type": "array" }, "synthetic": { "type": "boolean" }, "task_class": { "type": "string" } }, "required": [ "data_classification", "counterparty_id", "task_class" ], "type": "object" }, "name": "inspect_counterparty_evidence" }, { "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true }, "description": "Compile GAIP's retained evidence about one agent or supplier (conformance, watch events, witness results, repair and incident receipts) with a verify URL and Merkle proof per item, a manifest of counts, time span and gaps, and a framework reference table. An evidence compilation only: not a certification, audit opinion, insurance or legal advice.", "inputSchema": { "additionalProperties": false, "properties": { "requester": { "additionalProperties": false, "properties": { "continuity_handle": { "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "purpose": { "enum": [ "INSURER", "AUDITOR", "OPERATOR", "BUYER", "UNSPECIFIED" ], "type": "string" } }, "type": "object" }, "scope": { "additionalProperties": false, "properties": { "categories": { "items": { "enum": [ "conformance", "watch", "witness", "repair", "incident", "supplier_checks" ], "type": "string" }, "type": "array" }, "max_items": { "maximum": 200, "minimum": 1, "type": "integer" }, "receipt_ids": { "items": { "type": "string" }, "maxItems": 50, "type": "array" }, "since": { "type": "string" }, "until": { "type": "string" } }, "type": "object" }, "subject": { "description": "The agent or supplier: its public id or https URL. Never a person.", "oneOf": [ { "maxLength": 256, "type": "string" }, { "additionalProperties": false, "properties": { "counterparty_id": { "type": "string" }, "ref": { "type": "string" }, "seller_ref": { "type": "string" }, "url": { "format": "uri", "type": "string" } }, "type": "object" } ] } }, "required": [ "subject" ], "type": "object" }, "name": "gaip_evidence_pack", "title": "Build an evidence pack" }, { "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true }, "description": "Verify supplied GAIP receipts, order a timeline and attribute each observation to its source, with an EU AI Act Article 73 reference aid. No fault, liability or causation finding; not a regulatory filing or legal advice.", "inputSchema": { "additionalProperties": false, "properties": { "ai_system_ref": { "maxLength": 256, "type": "string" }, "data_classification": { "default": "PUBLIC", "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "observations": { "items": { "additionalProperties": false, "properties": { "observed_at_utc": { "type": "string" }, "receipt_id": { "type": "string" }, "source": { "maxLength": 120, "type": "string" }, "source_type": { "enum": [ "AUTOMATED_MONITOR", "PUBLIC_RECORD", "REQUESTER", "THIRD_PARTY" ], "type": "string" }, "statement": { "maxLength": 2000, "type": "string" } }, "required": [ "source", "statement" ], "type": "object" }, "maxItems": 50, "type": "array" }, "receipt_ids": { "items": { "type": "string" }, "maxItems": 50, "type": "array" }, "title": { "maxLength": 120, "type": "string" } }, "type": "object" }, "name": "gaip_incident_bundle", "title": "Build an incident evidence bundle" }, { "annotations": { "destructiveHint": false, "openWorldHint": false, "readOnlyHint": false }, "description": "Independent outcome evidence for outcome-priced contracts: build a task-level delivery, downstream-use and caller-supplied cost dossier. Missing costs and unverified claims remain explicit; no ROI or causal-value claim is issued.", "inputSchema": { "additionalProperties": true, "properties": { "baseline_cost_gbp": { "oneOf": [ { "type": "number" }, { "type": "string" } ] }, "continuity_handle": { "additionalProperties": false, "properties": { "continuity_id": { "type": "string" }, "token": { "type": "string" } }, "required": [ "continuity_id", "token" ], "type": "object" }, "costs": { "type": "object" }, "counterparty_id": { "type": "string" }, "currency": { "default": "GBP", "type": "string" }, "data_classification": { "enum": [ "PUBLIC", "NON_PERSONAL_PUBLIC" ], "type": "string" }, "delivery": { "required": [ "status" ], "type": "object" }, "delivery_check": { "properties": { "checks": { "items": { "type": "object" }, "maxItems": 8, "minItems": 1, "type": "array" }, "url": { "type": "string" } }, "required": [ "url" ], "type": "object" }, "downstream_use": { "type": "object" }, "episode_id": { "type": "string" }, "evidence_refs": { "items": { "type": "string" }, "maxItems": 20, "type": "array" }, "fx_to_gbp": { "properties": { "as_of": { "type": "string" }, "rate": { "type": "number" }, "source": { "type": "string" } }, "required": [ "rate", "as_of", "source" ], "type": "object" }, "independent_operator_id": { "type": "string" }, "synthetic": { "type": "boolean" }, "task": { "required": [ "acceptance_criteria" ], "type": "object" }, "task_class": { "type": "string" } }, "required": [ "data_classification", "counterparty_id", "task_class", "episode_id", "task", "delivery", "costs" ], "type": "object" }, "name": "gaip_measure_outcome_value", "title": "Measure task outcome and value" } ], "transport": "streamable-http", "version": "1.0.0" }, "oasf": { "authors": [ "GAIP" ], "created_at": "2026-09-24T00:00:00Z", "description": "Registers caller-declared delivery checks, observes supplied public results and returns a verifiable retained receipt. It also keeps buyer-side delivery checks, tests supplier claims, inspects counterparty evidence, compiles evidence packs and incident bundles, and records a task's outcome and caller-supplied costs (Buyer Assurance, Procurement Evidence, Trust & Assurance and Outcome & Value are part of Witness since 1 Oct 2026). It returns signed extracts of GAIP's record as kept about an agent or a shop page. Part of GAIP Witness \u00b7 Deals \u00b7 Sign-offs (lead agent).", "domains": [], "extensions": { "gaip": { "agent_id": "witness", "mcp": "https://www.gaipagents.com/mcp/agents/witness", "product": "witness", "publication_state": "PENDING_AGNTCY_DIRECTORY_RECEIPT" } }, "locators": [ { "type": "source_code", "urls": [ "https://github.com/tjcgraham-rgb/-gaip-agent-to-art-prototype" ] }, { "type": "documentation", "urls": [ "https://www.gaipagents.com/agents/witness" ] }, { "type": "a2a_agent_card", "urls": [ "https://www.gaipagents.com/agents/witness/.well-known/agent-card.json" ] } ], "modules": [], "name": "GAIP Witness Agent", "schema_version": "1.0.0", "skills": [ { "id": 1004, "name": "agent_orchestration/agent_coordination" } ], "version": "1.0.0" }, "publication_truth": "OFFICIAL_MCP_REGISTRY_PUBLISHED_OTHER_EXTERNAL_ACCEPTANCE_PENDING", "schema_version": "gaip.ten-agent-distribution-bundle.v1" }