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Returns allow, review or block.","extensions":{"bazaar":{"info":{"input":{"body":{"output":"Paris: 14 C, light rain, wind 12 km/h.","purpose":"Current weather for a city","tool_name":"get_weather"},"bodyType":"json","method":"POST","type":"http"},"output":{"example":{"mode":"tool-output-guard","paid_sats":20,"payment_hash":"x402:<sha256 hex>","receipt":{"payload":{"at":"<ISO 8601 time>","kid":"<signing key id>","mode":"tool-output-guard","payment_hash":"x402:<sha256 hex>","v":1,"verdict_sha256":"<sha256 hex of the verdict>"},"signature":"<base64url Ed25519 signature>"},"verdict":{"decision":"allow","reasons":[],"rule":"block if data-sending request >= 0.7, or orders to the agent >= 0.7 with off-topic or sending >= 0.5 ; review if any score >= 0.4 ; otherwise allow","scores":{"addresses_agent":0.01,"exfiltration":0.01,"off_purpose":0.02}}},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"output":{"description":"the result returned by the tool","type":"string"},"purpose":{"description":"(optional) what the tool is supposed to return","type":"string"},"tool_name":{"description":"(optional) tool name","type":"string"}},"required":["output"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}}},"lastUpdated":"2026-10-20T13:33:10.057Z","quality":{"l30DaysTotalCalls":1,"l30DaysUniquePayers":1,"lastCalledAt":"2026-10-20T13:33:09.454Z"},"resource":"https://verdict.kechlab.com/v1/tool-output-guard","serviceName":"Verdict L402","tags":["tool-poisoning","mcp","ai-agents"],"type":"http","x402Version":2},"source":"x402_bazaar","summary":"Tool results (MCP servers, APIs, search, file reads) are untrusted content the agent re-reads. Detects a result that gives orders to the agent, strays from what the tool should return or asks to send data (tool poisoning). Returns allow, review or block."},"body_sha256":"a5d80f6005a0a2f7c74931a3938da0db7238da009229c429c6dc39c12b69d687","prev_id":null,"leaf":"0x8111864b3beb11f650dd5e845a10a8c0814ae864e12143b9c36dd7f1546dffea","leaf_text":"{\"body\":\"a5d80f6005a0a2f7c74931a3938da0db7238da009229c429c6dc39c12b69d687\",\"id\":123810,\"kind\":\"listing\",\"method\":\"baseline/1\",\"observed_us\":1793025623738949,\"prev\":null,\"subject\":\"x402_bazaar:https://verdict.kechlab.com/v1/tool-output-guard\",\"subject_kind\":\"source_record\"}","day":{"day":"2026-10-26","leaves":296695,"root":"0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8","chained":"0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a","anchor_chain":"eip155:5042002","anchor_tx":"0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae","anchor_block":69251483},"proof":["0x8111a86910a358433091195ab8e5d175f1046ec0e16b3d74a4faf03f077cf96a","0xa66b8f51e9f11f4b8a9f4eb0ed336c5f69e22112afdd626f1022474c535e7c48","0x806b9eb9126ece95407f7910efc556ed7d07560b4765992d137ceebf80187132","0x4ae977f5200448d69253b03d741aa0ed5c73bf85b39303d9ea0a7af5725b0621","0x1fe1f5186a5e0bf05bafbc535144fea79aba2cf4e2ed248ef75e0f1883f2514b","0x086e70b1bc4376a83b3808f6070ae269e84d579be9bc933e27f8b5c7f6d0ff73","0x84baafa15d8fe8a4beceab44e24a92ae0bca89a39db67c10f48051ac1088ece3","0x1c7d5d667dbaf02817a5f42fc6c683a407834c8853e35fe9947ff62a365b5741","0x947bf51fe747d6f31e2541b7a83a5299be25717c13b588d8ef64a531b5470529","0xa6bf3e233d964bf47c35e307fb1e82a9db46b720ed0d1a887fab65896dbfda9a","0xb998e012b473bde18346485cd0b7b8b31ab48d5f22ba9bc660bb2e523161e255","0x08155d70132f82e370214fc5b72194dfa6f5e57670b7bcf74776e8418302897e","0x4d2ee986a690e903126f449b4e9e62d5572b350357ab4496a83488949b131c29","0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78","0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2","0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76","0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9","0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f","0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a"]}