HubVibe: Pay-per-Call Agent Tools: Web Search, Email Verify, KYC Screening, Stocks, Crypto, News

Full site compliance bundle (all four audits)

audit_bundle

Read-onlyIdempotent

Full website audit in one call: accessibility (WCAG 2.1 A/AA via axe-core), on-page SEO, HTTP security headers and page speed / page weight, from a single browser load of one URL. Cheaper than four separate calls; if any part cannot run, nothing is billed. Use a single audit route when you need only one of the four. $0.15 per call. Returns: pass (bool) plus wcag{}, seo{}, security{}, performance{} sub-results.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`url`	Yes	Live, fetchable http(s) URL to audit.
`language`	No	Optional BCP-47 language tag (en, ja, ko, pt-BR): the human-readable text of the findings is returned in this language; rule ids, severities, URLs and numbers are untouched. Default: English.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`seo`	No
`pass`	Yes
`wcag`	No
`status`	No
`security`	No
`performance`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed10 schema fields changedOct 1, 2026

removedOutput schema / properties / pass / description

Removed value: -"Whether every rule in this dimension passed."

removedOutput schema / properties / performance / properties

Removed value: -{
-  "findings": {
-    "description": "One entry per rule that did not pass. Empty when the check is clean.",
-    "items": {
-      "properties": {
-        "detail": {
-          "description": "What failed and where.",
-          "type": "string"
-        },
-        "id": {
-          "description": "Stable rule identifier.",
-          "type": "string"
-        },
-        "severity": {
-          "description": "Rule severity.",
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object"
-    },
-    "type": "array"
-  },
-  "metrics": {
-    "properties": {
-      "dom_node_count": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "request_count": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "total_bytes_transferred": {
-        "minimum": 0,
-        "type": "integer"
-      }
-    },
-    "type": "object"
-  },
-  "pass": {
-    "description": "Whether every rule in this dimension passed.",
-    "type": "boolean"
-  },
-  "status": {
-    "const": "ok",
-    "description": "Present only on a completed audit.",
-    "type": "string"
-  }
-}

removedOutput schema / properties / performance / required
```
Removed value: -[
-  "pass"
-]
```

removedOutput schema / properties / security / properties

Removed value: -{
-  "findings": {
-    "description": "One entry per rule that did not pass. Empty when the check is clean.",
-    "items": {
-      "properties": {
-        "detail": {
-          "description": "What failed and where.",
-          "type": "string"
-        },
-        "id": {
-          "description": "Stable rule identifier.",
-          "type": "string"
-        },
-        "severity": {
-          "description": "Rule severity.",
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object"
-    },
-    "type": "array"
-  },
-  "pass": {
-    "description": "Whether every rule in this dimension passed.",
-    "type": "boolean"
-  },
-  "status": {
-    "const": "ok",
-    "description": "Present only on a completed audit.",
-    "type": "string"
-  }
-}

removedOutput schema / properties / security / required
```
Removed value: -[
-  "pass"
-]
```

removedOutput schema / properties / seo / properties

Removed value: -{
-  "findings": {
-    "description": "One entry per rule that did not pass. Empty when the check is clean.",
-    "items": {
-      "properties": {
-        "detail": {
-          "description": "What failed and where.",
-          "type": "string"
-        },
-        "id": {
-          "description": "Stable rule identifier.",
-          "type": "string"
-        },
-        "severity": {
-          "description": "Rule severity.",
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object"
-    },
-    "type": "array"
-  },
-  "pass": {
-    "description": "Whether every rule in this dimension passed.",
-    "type": "boolean"
-  },
-  "status": {
-    "const": "ok",
-    "description": "Present only on a completed audit.",
-    "type": "string"
-  }
-}

removedOutput schema / properties / seo / required
```
Removed value: -[
-  "pass"
-]
```
removedOutput schema / properties / status / description
```
Removed value: -"Present only on a completed audit."
```

removedOutput schema / properties / wcag / properties

Removed value: -{
-  "engine": {
-    "const": "axe-core",
-    "type": "string"
-  },
-  "pass": {
-    "description": "Whether every rule in this dimension passed.",
-    "type": "boolean"
-  },
-  "status": {
-    "const": "ok",
-    "description": "Present only on a completed audit.",
-    "type": "string"
-  },
-  "violations": {
-    "items": {
-      "properties": {
-        "help": {
-          "type": [
-            "string",
-            "null"
-          ]
-        },
-        "help_url": {
-          "format": "uri",
-          "type": "string"
-        },
-        "id": {
-          "description": "axe-core rule id.",
-          "type": "string"
-        },
-        "impact": {
-          "description": "axe-core impact level.",
-          "type": [
-            "string",
-            "null"
-          ]
-        },
-        "nodes_affected": {
-          "minimum": 0,
-          "type": "integer"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object"
-    },
-    "type": "array"
-  }
-}

removedOutput schema / properties / wcag / required
```
Removed value: -[
-  "pass"
-]
```

Changed1 schema field changedSep 27, 2026

addedInput schema / properties / language

Added value: +{
+  "description": "Optional BCP-47 language tag (en, ja, ko, pt-BR): the human-readable text of the findings is returned in this language; rule ids, severities, URLs and numbers are untouched. Default: English.",
+  "examples": [
+    "ja"
+  ],
+  "maxLength": 35,
+  "pattern": "^[A-Za-z]{2,3}(-[A-Za-z0-9]{2,8})*$",
+  "type": "string"
+}

Changed2 schema fields changedSep 12, 2026
- changedOutput schema / properties / wcag / properties / violations / items / properties / help / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / wcag / properties / violations / items / properties / impact / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```

Changed6 schema fields changedAug 25, 2026

addedInput schema / $schema

Added value: +"https://json-schema.org/draft/2020-12/schema"

changedInput schema / properties / url / description

Previous value: -"Live URL to audit"New value: +"Live, fetchable http(s) URL to audit."

addedInput schema / properties / url / examples
```
Added value: +[
+  "https://example.com"
+]
```
addedInput schema / properties / url / format
```
Added value: +"uri"
```
addedInput schema / title
```
Added value: +"Live URL to audit"
```

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "properties": {
+    "pass": {
+      "description": "Whether every rule in this dimension passed.",
+      "type": "boolean"
+    },
+    "performance": {
+      "$schema": "https://json-schema.org/draft/2020-12/schema",
+      "properties": {
+        "findings": {
+          "description": "One entry per rule that did not pass. Empty when the check is clean.",
+          "items": {
+            "properties": {
+              "detail": {
+                "description": "What failed and where.",
+                "type": "string"
+              },
+              "id": {
+                "description": "Stable rule identifier.",
+                "type": "string"
+              },
+              "severity": {
+                "description": "Rule severity.",
+                "type": "string"
+              }
+            },
+            "required": [
+              "id"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "metrics": {
+          "properties": {
+            "dom_node_count": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "request_count": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "total_bytes_transferred": {
+              "minimum": 0,
+              "type": "integer"
+            }
+          },
+          "type": "object"
+        },
+        "pass": {
+          "description": "Whether every rule in this dimension passed.",
+          "type": "boolean"
+        },
+        "status": {
+          "const": "ok",
+          "description": "Present only on a completed audit.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "pass"
+      ],
+      "type": "object"
+    },
+    "security": {
+      "$schema": "https://json-schema.org/draft/2020-12/schema",
+      "properties": {
+        "findings": {
+          "description": "One entry per rule that did not pass. Empty when the check is clean.",
+          "items": {
+            "properties": {
+              "detail": {
+                "description": "What failed and where.",
+                "type": "string"
+              },
+              "id": {
+                "description": "Stable rule identifier.",
+                "type": "string"
+              },
+              "severity": {
+                "description": "Rule severity.",
+                "type": "string"
+              }
+            },
+            "required": [
+              "id"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "pass": {
+          "description": "Whether every rule in this dimension passed.",
+          "type": "boolean"
+        },
+        "status": {
+          "const": "ok",
+          "description": "Present only on a completed audit.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "pass"
+      ],
+      "type": "object"
+    },
+    "seo": {
+      "$schema": "https://json-schema.org/draft/2020-12/schema",
+      "properties": {
+        "findings": {
+          "description": "One entry per rule that did not pass. Empty when the check is clean.",
+          "items": {
+            "properties": {
+              "detail": {
+                "description": "What failed and where.",
+                "type": "string"
+              },
+              "id": {
+                "description": "Stable rule identifier.",
+                "type": "string"
+              },
+              "severity": {
+                "description": "Rule severity.",
+                "type": "string"
+              }
+            },
+            "required": [
+              "id"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "pass": {
+          "description": "Whether every rule in this dimension passed.",
+          "type": "boolean"
+        },
+        "status": {
+          "const": "ok",
+          "description": "Present only on a completed audit.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "pass"
+      ],
+      "type": "object"
+    },
+    "status": {
+      "const": "ok",
+      "description": "Present only on a completed audit.",
+      "type": "string"
+    },
+    "wcag": {
+      "$schema": "https://json-schema.org/draft/2020-12/schema",
+      "properties": {
+        "engine": {
+          "const": "axe-core",
+          "type": "string"
+        },
+        "pass": {
+          "description": "Whether every rule in this dimension passed.",
+          "type": "boolean"
+        },
+        "status": {
+          "const": "ok",
+          "description": "Present only on a completed audit.",
+          "type": "string"
+        },
+        "violations": {
+          "items": {
+            "properties": {
+              "help": {
+                "type": "string"
+              },
+              "help_url": {
+                "format": "uri",
+                "type": "string"
+              },
+              "id": {
+                "description": "axe-core rule id.",
+                "type": "string"
+              },
+              "impact": {
+                "description": "axe-core impact level.",
+                "type": "string"
+              },
+              "nodes_affected": {
+                "minimum": 0,
+                "type": "integer"
+              }
+            },
+            "required": [
+              "id"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "pass"
+      ],
+      "type": "object"
+    }
+  },
+  "required": [
+    "pass"
+  ],
+  "type": "object"
+}

First observedAug 11, 2026

TDQS

A4.5/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly/idempotent/non-destructive/openWorld, so the safety profile is covered. The description adds genuinely non-structured context: billing only occurs if all parts run ('if any part cannot run, nothing is billed') and the flat $0.15 price, which the schema cannot express.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Four tight sentences: scope, cost/routing, alternative, return shape. Front-loaded with the bundle contents and no filler; the pricing and fallback rule are each given exactly one clause.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With an output schema present, the description needn't explain returns, yet it still summarizes the pass plus four sub-result buckets. Combined with annotations, pricing, routing guidance and param docs, an agent has everything needed to select and invoke it.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, including the BCP-47 language semantics and rule-id/severity exceptions, so the schema carries the parameter burden. The description adds nothing beyond 'one URL', so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (audit) and resource (a live URL) and enumerates exactly what is bundled: WCAG 2.1 A/AA, on-page SEO, HTTP security headers, page speed/weight. It is immediately distinguishable from the four single-audit siblings by naming the aggregate scope.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives an explicit routing rule — 'Use a single audit route when you need only one of the four' — which names the alternative family and the condition that selects it. It also surfaces the cost trade-off ($0.15/call, cheaper than four calls) that drives the bundle-vs-single decision.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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