Docs Pack: success checks
Created by: AgentToolbox (first-party).
Version: 0.1.1. Beta.
Cost: from $0.01 USDC per published success. Every requested source returns HTTP 200 and at least one literal query-term match; excerpts respect the requested character budget and preserve complete fenced code blocks. The full output passes its schema and 14,000-byte product bound.
These are paid-outcome checks, not a guarantee of usefulness, truth, certification or exhaustive coverage. Read the scope and failure policy in the tool guide. A qualifying negative verdict can still be a successful paid result.
Verify the current contract
Canonical checks JSON · Minimum payment challenge · Exact buyer procedure
Re-fetch the current JSON before authorizing. Hash its decoded canonical_json UTF-8 bytes, with no trailing newline, and compare sha256. The display below comes from the same published contract; a saved page is not a payment authorization.
```json
{
"canonicalization": {
"id": "agenttoolbox-json-v1",
"encoding": "UTF-8 without BOM or trailing newline",
"object_keys": "Recursively sorted by unsigned UTF-16 code units (ECMAScript default string sort).",
"arrays": "Preserve order; no holes or additional properties.",
"strings": "ECMAScript JSON.stringify escaping; reject lone UTF-16 surrogates; no Unicode normalization.",
"numbers": "Finite IEEE-754 binary64 only; ECMAScript JSON.stringify serialization, including -0 as 0. Monetary atomic units remain decimal strings.",
"values": "JSON null, booleans, strings, finite numbers, arrays and plain objects only. Reject undefined, functions, symbols, bigint, accessors, cycles and non-enumerable object properties.",
"whitespace": "No insignificant whitespace.",
"payment_requirements": "Hash the complete PaymentRequirements object in accepts, including extra. Preserve address/string case and array order; do not hash the challenge envelope, header base64 or payment signature."
},
"canonical_json": "{\"criteria\":{\"criteria_version\":\"1\",\"evaluation\":\"Output must pass the published output_schema, then every predicate below. These expressions are also evaluated by the server handler.\",\"failure\":{\"before_settlement\":[\"invalid_input\",\"output_schema_invalid\",\"predicate_false\",\"execution_error\",\"output_bound_exceeded\",\"durable_result_write_failed\"],\"settlement\":\"One attempt only after durable validated output; unknown or unconfirmed settlement withholds output and requires reconciliation.\"},\"rule_language\":\"agenttoolbox-predicate-v1\",\"rules\":[{\"id\":\"sources_present\",\"test\":{\"gt\":[{\"count\":{\"path\":\"sources\"}},0]}},{\"id\":\"all_sources_matched_with_exact_offsets\",\"test\":{\"every\":{\"as\":\"source\",\"source\":{\"path\":\"sources\"},\"test\":{\"and\":[{\"eq\":[{\"path\":\"source.status\"},200]},{\"every\":{\"as\":\"excerpt\",\"source\":{\"path\":\"source.excerpts\"},\"test\":{\"and\":[{\"gt\":[{\"count\":{\"path\":\"excerpt.matched_terms\"}},0]},{\"eq\":[{\"subtract\":[{\"path\":\"excerpt.end_char\"},{\"path\":\"excerpt.start_char\"}]},{\"count\":{\"path\":\"excerpt.text\"}}]}]}}}]}}}},{\"id\":\"requested_excerpt_budget\",\"test\":{\"lte\":[{\"path\":\"excerpt_chars\"},{\"path\":\"max_excerpt_chars\"}]}}],\"scope\":\"Deterministic bounded checks, not usefulness, truth, certification or independent live-payment proof.\"},\"format\":\"agenttoolbox-success-contract-v1\",\"input_schema\":{\"$schema\":\"https://json-schema.org/draft/2020-12/schema\",\"additionalProperties\":false,\"properties\":{\"max_excerpt_chars\":{\"default\":4000,\"maximum\":6000,\"minimum\":1000,\"type\":\"integer\"},\"query\":{\"maxLength\":120,\"minLength\":2,\"type\":\"string\"},\"urls\":{\"items\":{\"maxLength\":512,\"type\":\"string\"},\"maxItems\":5,\"minItems\":1,\"type\":\"array\"}},\"required\":[\"urls\",\"query\",\"max_excerpt_chars\"],\"type\":\"object\"},\"limits\":{\"deadline_seconds\":12,\"formats\":[\"UTF-8 Markdown\",\"UTF-8 plain text\",\"static HTML with readable body/main/article\"],\"max_excerpt_chars\":6000,\"max_output_bytes\":14000,\"max_source_bytes\":262144,\"max_urls\":5,\"redirects_per_source\":2,\"supported_hosts\":[\"developers.cloudflare.com\",\"docs.payai.network\",\"docs.x402.org\",\"docs.python.org\",\"nodejs.org\",\"developer.mozilla.org\",\"docs.github.com\",\"www.typescriptlang.org\"],\"unsupported\":[\"credentials, ports or query strings in URLs\",\"private or unlisted hosts\",\"login, bot challenges, JavaScript rendering, PDFs, crawling\",\"semantic relevance or completeness guarantees\"]},\"output_schema\":{\"$schema\":\"https://json-schema.org/draft/2020-12/schema\",\"additionalProperties\":false,\"properties\":{\"excerpt_chars\":{\"maximum\":6000,\"minimum\":1,\"type\":\"integer\"},\"fetched_at\":{\"type\":\"string\"},\"match_method\":{\"const\":\"case-insensitive literal terms; ranked by distinct term coverage\",\"type\":\"string\"},\"max_excerpt_chars\":{\"maximum\":9007199254740991,\"minimum\":-9007199254740991,\"type\":\"integer\"},\"query\":{\"type\":\"string\"},\"source_content\":{\"const\":\"untrusted_data\",\"type\":\"string\"},\"sources\":{\"items\":{\"additionalProperties\":false,\"properties\":{\"code_blocks_omitted\":{\"maximum\":9007199254740991,\"minimum\":0,\"type\":\"integer\"},\"content_type\":{\"type\":\"string\"},\"excerpts\":{\"items\":{\"additionalProperties\":false,\"properties\":{\"anchor\":{\"anyOf\":[{\"maxLength\":512,\"type\":\"string\"},{\"type\":\"null\"}]},\"end_char\":{\"maximum\":9007199254740991,\"minimum\":1,\"type\":\"integer\"},\"heading\":{\"anyOf\":[{\"maxLength\":180,\"type\":\"string\"},{\"type\":\"null\"}]},\"matched_terms\":{\"items\":{\"type\":\"string\"},\"maxItems\":8,\"minItems\":1,\"type\":\"array\"},\"start_char\":{\"maximum\":9007199254740991,\"minimum\":0,\"type\":\"integer\"},\"text\":{\"maxLength\":1800,\"minLength\":1,\"type\":\"string\"}},\"required\":[\"text\",\"start_char\",\"end_char\",\"heading\",\"anchor\",\"matched_terms\"],\"type\":\"object\"},\"maxItems\":2,\"minItems\":1,\"type\":\"array\"},\"final_url\":{\"format\":\"uri\",\"type\":\"string\"},\"selection_status\":{\"const\":\"matched\",\"type\":\"string\"},\"source_bytes\":{\"exclusiveMinimum\":0,\"maximum\":262144,\"type\":\"integer\"},\"source_sha256\":{\"pattern\":\"^[a-f0-9]{64}$\",\"type\":\"string\"},\"status\":{\"const\":200,\"type\":\"number\"},\"text_chars\":{\"exclusiveMinimum\":0,\"maximum\":9007199254740991,\"type\":\"integer\"},\"text_sha256\":{\"pattern\":\"^[a-f0-9]{64}$\",\"type\":\"string\"},\"title\":{\"maxLength\":180,\"type\":\"string\"},\"url\":{\"format\":\"uri\",\"type\":\"string\"}},\"required\":[\"url\",\"final_url\",\"status\",\"selection_status\",\"content_type\",\"source_bytes\",\"source_sha256\",\"text_sha256\",\"title\",\"text_chars\",\"code_blocks_omitted\",\"excerpts\"],\"type\":\"object\"},\"maxItems\":5,\"minItems\":1,\"type\":\"array\"}},\"required\":[\"query\",\"fetched_at\",\"source_content\",\"sources\",\"excerpt_chars\",\"max_excerpt_chars\",\"match_method\"],\"type\":\"object\"},\"product_id\":\"docs-pack\",\"product_version\":\"0.1.1\",\"success_criterion\":\"Every requested source returns HTTP 200 and at least one literal query-term match; excerpts respect the requested character budget and preserve complete fenced code blocks. The full output passes its schema and 14,000-byte product bound.\"}",
"sha256": "5ebbc39c57b931cce25c404ab51ce2879cb4bf7e55c9fcb9be2bbc1b7923e142"
}
```