H/M Content Credentials Evidence Verifier
Free C2PA 2.4 triage and reproducible official trust snapshot. No media, keys, or payment.
我该使用它吗
质量与安全性
A
发现（7）
- LOWTool 'get_content_credentials_capabilities' name length outside 3-30 range在 get_content_credentials_capabilities 中
- LOWTool 'triage_c2pa_validation_statuses' name length outside 3-30 range在 triage_c2pa_validation_statuses 中
- LOWTool 'run_content_credentials_self_check' name length outside 3-30 range在 run_content_credentials_self_check 中
- LOWTool 'verify_content_credentials_envelope' name length outside 3-30 range在 verify_content_credentials_envelope 中
- LOWTool 'verify_content_credentials_audit' name length outside 3-30 range在 verify_content_credentials_audit 中
- LOWTool 'create_content_credentials_policy_profile' name length outside 3-30 range在 create_content_credentials_policy_profile 中
- LOWTool 'verify_content_credentials_policy_decision' name length outside 3-30 range在 verify_content_credentials_policy_decision 中
基于对工具定义和协议合规性的自动分析。
上下文开销
~2,236token 数（工具定义）
~3.0 KB典型响应大小
对注意力有中等影响（占 128k 上下文窗口的 1.75%）
这是每次将服务器的工具加载到模型上下文窗口时所消耗的大致 token 数。数值越高，可用于其他任务的注意力就越少。
安装
一键安装
将以下内容添加到你的 `claude_desktop_config.json` 文件中：
{
"mcpServers": {
"content-credentials": {
"url": "https://agents.hogarmas.net/mcp/content-credentials"
}
}
}远程端点
https://agents.hogarmas.net/mcp/content-credentialsstreamable-http它能做什么
工具清单
工具（7）
🟢 只读🟡 写入🔴 删除⚪ 未知
🟢get_content_credentials_capabilities
Returns the free tools, byte limits, privacy behavior and interpretation boundaries before any evidence JSON is submitted.
输入模式
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢triage_c2pa_validation_statuses(codes, statusCodes)
Classifies up to 200 C2PA validation status observations against the complete 2.4 standard catalog, flags class mismatches, separates custom codes and returns bounded remediation. Accepts codes or crJSON-style status groups; no media, URL fetching, authentication or payment.
输入模式
{
"type": "object",
"properties": {
"codes": {
"description": "Unclassified C2PA status code strings",
"maxItems": 200,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 160
}
},
"statusCodes": {
"description": "crJSON-style success, informational and failure arrays",
"type": "object",
"properties": {
"success": {
"maxItems": 200,
"type": "array",
"items": {
"anyOf": [
{
"type": "string",
"minLength": 1,
"maxLength": 160
},
{
"type": "object",
"properties": {
"code": {
"type": "string",
"minLength": 1,
"maxLength": 160
},
"url": {
"type": "string",
"maxLength": 2048
},
"explanation": {
"type": "string",
"maxLength": 2000
}
},
"required": [
"code"
]
}
]
}
},
"informational": {
"maxItems": 200,
"type": "array",
"items": {
"anyOf": [
{
"type": "string",
"minLength": 1,
"maxLength": 160
},
{
"type": "object",
"properties": {
"code": {
"type": "string",
"minLength": 1,
"maxLength": 160
},
"url": {
"type": "string",
"maxLength": 2048
},
"explanation": {
"type": "string",
"maxLength": 2000
}
},
"required": [
"code"
]
}
]
}
},
"failure": {
"maxItems": 200,
"type": "array",
"items": {
"anyOf": [
{
"type": "string",
"minLength": 1,
"maxLength": 160
},
{
"type": "object",
"properties": {
"code": {
"type": "string",
"minLength": 1,
"maxLength": 160
},
"url": {
"type": "string",
"maxLength": 2048
},
"explanation": {
"type": "string",
"maxLength": 2000
}
},
"required": [
"code"
]
}
]
}
}
}
}
},
"$schema": "http://json-schema.org/draft-07/schema#"
}输出模式
{
"type": "object",
"properties": {
"schema": {
"type": "string",
"const": "hm.c2pa-status-triage.v1"
},
"ruleset": {
"type": "string"
},
"state": {
"type": "string",
"enum": [
"no-status-codes",
"failure-observed",
"review-required",
"vendor-review-required",
"informational-review",
"no-standard-failure-observed"
]
},
"summary": {
"type": "string"
},
"counts": {
"type": "object",
"properties": {
"observations": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"uniqueCodes": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"success": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"informational": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"failure": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"unclassified": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"standard": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"customOrUnknown": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"invalidFormat": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"classMismatches": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
}
},
"required": [
"observations",
"uniqueCodes",
"success",
"informational",
"failure",
"unclassified",
"standard",
"customOrUnknown",
"invalidFormat",
"classMismatches"
],
"additionalProperties": false
},
"affectedDomains": {
"type": "array",
"items": {
"type": "object",
"properties": {
"domain": {
"type": "string"
},
"codes": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"failures": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
}
},
"required": [
"domain",
"codes",
"failures"
],
"additionalProperties": false
}
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"code": {
"type": "string"
},
"classification": {
"type": "string",
"enum": [
"standard",
"custom-or-unknown",
"invalid-format"
]
},
"effectiveClass": {
"type": "string",
"enum": [
"success",
"informational",
"failure",
"unclassified"
]
},
"standardClass": {
"anyOf": [
{
"type": "string",
"enum": [
"success",
"informational",
"failure"
]
},
{
"type": "null"
}
]
},
"observedClasses": {
"type": "array",
"items": {
"type": "string",
"enum": [
"success",
"informational",
"failure"
]
}
},
"classMismatch": {
"type": "boolean"
},
"occurrences": {
"type": "integer",
"exclusiveMinimum": 0,
"maximum": 9007199254740991
},
"domain": {
"type": "string"
},
"scope": {
"type": "string"
},
"meaning": {
"type": "string"
},
"nextAction": {
"type": "string"
},
"submittedContext": {
"type": "object",
"properties": {
"urlPresent": {
"type": "boolean"
},
"explanationPresent": {
"type": "boolean"
},
"returned": {
"type": "boolean",
"const": false
}
},
"required": [
"urlPresent",
"explanationPresent",
"returned"
],
"additionalProperties": false
}
},
"required": [
"code",
"classification",
"effectiveClass",
"standardClass",
"observedClasses",
"classMismatch",
"occurrences",
"domain",
"scope",
"meaning",
"nextAction",
"submittedContext"
],
"additionalProperties": false
}
},
"source": {
"type": "object",
"properties": {
"specification": {
"type": "string"
},
"specificationVersion": {
"type": "string",
"const": "2.4"
},
"statusCodeReference": {
"type": "string"
},
"crJsonReference": {
"type": "string"
},
"catalogEntries": {
"type": "number",
"const": 115
},
"license": {
"type": "string"
}
},
"required": [
"specification",
"specificationVersion",
"statusCodeReference",
"crJsonReference",
"catalogEntries",
"license"
],
"additionalProperties": false
},
"privacy": {
"type": "object",
"properties": {
"sourceMediaAccepted": {
"type": "boolean",
"const": false
},
"urlsReturned": {
"type": "boolean",
"const": false
},
"submittedExplanationsReturned": {
"type": "boolean",
"const": false
},
"inputPersistedByCore": {
"type": "boolean",
"const": false
}
},
"required": [
"sourceMediaAccepted",
"urlsReturned",
"submittedExplanationsReturned",
"inputPersistedByCore"
],
"additionalProperties": false
},
"limitations": {
"type": "object",
"properties": {
"validatesAsset": {
"type": "boolean",
"const": false
},
"validatesManifest": {
"type": "boolean",
"const": false
},
"verifiesSignature": {
"type": "boolean",
"const": false
},
"establishesSignerTrust": {
"type": "boolean",
"const": false
},
"determinesTruth": {
"type": "boolean",
"const": false
},
"infersCustomCodeMeaning": {
"type": "boolean",
"const": false
},
"absenceOfFailureProvesValidity": {
"type": "boolean",
"const": false
}
},
"required": [
"validatesAsset",
"validatesManifest",
"verifiesSignature",
"establishesSignerTrust",
"determinesTruth",
"infersCustomCodeMeaning",
"absenceOfFailureProvesValidity"
],
"additionalProperties": false
}
},
"required": [
"schema",
"ruleset",
"state",
"summary",
"counts",
"affectedDomains",
"items",
"source",
"privacy",
"limitations"
],
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false
}🟢run_content_credentials_self_check
Runs a deterministic, zero-input check of valid evidence, tamper detection and audit-chain verification using a synthetic fixture. No source media or caller data is used.
输入模式
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢verify_content_credentials_envelope(envelope)
Checks the schema, privacy boundaries and canonical SHA-256 digest of an H/M evidence envelope. It does not inspect source media or authenticate an issuer.
输入模式
{
"type": "object",
"properties": {
"envelope": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {},
"description": "Privacy-minimized H/M evidence JSON envelope. Source media is not accepted."
}
},
"required": [
"envelope"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢verify_content_credentials_audit(envelope)
Checks report identity, source-report digest and the local custody hash chain. It does not prove operator identity, authorship or factual truth.
输入模式
{
"type": "object",
"properties": {
"envelope": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {},
"description": "Privacy-minimized H/M evidence JSON envelope. Source media is not accepted."
}
},
"required": [
"envelope"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢create_content_credentials_policy_profile(preset, actions, name, purpose)
Creates one versioned policy profile from a fixed preset and optional rule overrides. It accepts no source media or evidence and does not authenticate the policy author.
输入模式
{
"type": "object",
"properties": {
"preset": {
"type": "string",
"enum": [
"editorial-review",
"trusted-distribution",
"archive-preservation",
"open-research"
]
},
"actions": {
"description": "Optional allow, review or hold overrides keyed by a published policy rule ID",
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"type": "string",
"enum": [
"allow",
"review",
"hold"
]
}
},
"name": {
"type": "string",
"maxLength": 120
},
"purpose": {
"type": "string",
"maxLength": 400
}
},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢verify_content_credentials_policy_decision(decision)
Checks the policy checksum, decision checksum, every per-item rule outcome and aggregate counts. It does not inspect source media, authenticate the sender or certify compliance.
输入模式
{
"type": "object",
"properties": {
"decision": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {},
"description": "H/M policy decision JSON exported by the browser-local Evidence Policy Lab"
}
},
"required": [
"decision"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}推荐提示词
retrieve_data
Get details about [item] from H/M Content Credentials Evidence Verifier
预期工具：
get_content_credentials_capabilitiesfetch_info
Fetch [information type] using H/M Content Credentials Evidence Verifier
预期工具：
get_content_credentials_capabilities社区
证据
最近观测
已验证未记录版本7 个工具
已验证未记录版本7 个工具