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They look for keywords, not intent. That gap leaves your API exposed to jailbreaks that don’t look like attacks until they are already executing.\n\nPromptShield changes the detection model. It analyzes the structural intent of incoming prompts rather than just their surface text. In our latest test run, the system identified a high-severity injection attempt—specifically an \"Instruction Override\" vector designed to leak system prompts and API keys. The scan didn’t just flag it; it categorized the attack vector, assigned a critical risk level, and blocked the payload before it reached the model layer.\n\nThis isn’t theoretical. The detection engine is already catching real-world patterns from our library of 18 known attack classes. If you are building on LLMs, you need to know if a user is asking a question or trying to take control of your system.\n\nWe are opening access to the API now.\n\n**Next Step:**\nVisit [zambo.dev/api/prompt-shield] to view the documentation and generate your free API key. You can run your first deep scan in under five minutes. No credit card required for the free tier.\n\nLet’s secure your inference layer.\n\nBest,\n\nThe Zambo Team","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:f837ec16d8fb7c61ad19902d26c3665d7b937d95d8a44c67c61bda9475d2496a","input_hash_layout":"zambo-json-sorted-keys-utf8-v1","free_used":0,"free_remaining":0,"free_limit":0,"signal_handle":null,"tool":{"name":"write","version":"4.0.0","scope":"public"},"caller":{"type":"session","id":"sha256:1e5ba8f5be53b0a60060bc4b17e9e37a552af7a3bb590571797e5e54286a30ba","label":"zambo-home-demo","label_source":"caller_reported"},"side_effects":{"declared":["none"],"schema_version":"zambo-side-effects/1","declaration_hash":"sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee"},"evidence_sha256":null,"evidence_url":null,"evidence_byte_length":null,"evidence_content_type":null,"evidence_source_url":null,"evidence_status":"no_upstream_bytes_captured","external_evidence":[],"provenance":null,"provenance_class":"EXECUTED BY ZAMBO","metadata_hash":"sha256:b4cbd0862bad8d237610ceb1467dbc89bd0f0ddf882dd9f2a5ae81ec12ac7dba","anchor":{"event_id":"cb810472cf9a77bcff1adee9dca0a2e2117504dc3d6b08125c857fd7d55d28b8","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.damus.io","wss://nos.lol","wss://relay.primal.net"],"status":"partial","published_at":"2026-10-16T15:44:11.513Z","schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-10-16T15:44:10.949Z","evidence_url":null,"receipt_uuid":"47f6be94-e95c-4d67-9695-4e2698f8da17","output_sha256":"sha256:3037022ddfe344ecd86ac50a7f1d1712bf6e9bf209ee280c613523b28a017244","schema_version":"zambo-receipt-anchor/1","evidence_sha256":null,"evidence_byte_length":null},"envelope_bytes":"{\"anchored_at\":\"2026-10-16T15:44:10.949Z\",\"evidence_byte_length\":null,\"evidence_sha256\":null,\"evidence_url\":null,\"output_sha256\":\"sha256:3037022ddfe344ecd86ac50a7f1d1712bf6e9bf209ee280c613523b28a017244\",\"receipt_uuid\":\"47f6be94-e95c-4d67-9695-4e2698f8da17\",\"schema_version\":\"zambo-receipt-anchor/1\"}"},"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","api_version":1,"verification_scope":"separate_sha256_commitment_and_provenance_binding_checks","checks":{"commitment_matches":{"label":"SHA-256 commitment","passed":true,"status":"pass","detail":"The exact decoded canonical bytes match the stored SHA-256 output hash."},"canonical_payload_matches":{"label":"Canonical payload reconstruction","passed":true,"status":"pass","detail":"The stored output and known call context reconstruct the exact canonical bytes."},"provenance_binding":{"label":"Provenance claim binding","status":"pass","passed":true,"detail":"The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated."},"metadata_binding":{"label":"AER-1 metadata hash","status":"pass","passed":true,"detail":"metadata_hash matches the canonical metadata block."},"signature":{"label":"Ed25519 signature (not checked)","passed":false,"status":"not_checked","detail":"No Ed25519 signature or pinned signing key was checked."},"chain":{"label":"Receipt chain (not checked)","passed":false,"status":"not_checked","detail":"No append-only receipt-chain proof was checked."},"issued_by_zambo_dev":{"label":"Issuer authentication","passed":false,"status":"not_checked","detail":"A zambo.dev receipt URL does not authenticate the issuer; no pinned signature or trusted issuer key was checked."},"immutable_log_timestamp":{"label":"Stored timestamp","passed":true,"timestamp":"2026-10-16T15:44:10.949Z","detail":"The receipt store reports 2026-10-16T15:44:10.949Z; immutability is not checked here."},"receipt_schema_version":"0.4","signature_valid":{"label":"Ed25519 signature (not checked)","passed":false,"status":"not_checked","detail":"Compatibility field only. 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