HirePulse Agent Gateway

Vendor Stability Check

b2b_vendor_stability_evaluator

Read-only

B2B procurement assessment from public technology and hiring evidence, with gaps and limitations. Missing history stays unknown. $0.10 only for a useful assessment. General enrichment: get_company_profile; online-shop purchase risk: pre_purchase_merchant_trust_check.

Input Schema

Name	Required	Description	Default
`context`	No	Optional. A few words on why you are calling this tool. Recorded without your identity to improve the tools; leave out personal data.
`vendor_domain`	Yes	Public domain without scheme, path or port.

Output Schema

Name	Required	Description	Default
`code`	No
`domain`	No
`status`	No
`sandbox`	No
`limitations`	No
`error_reason`	No
`vendor_domain`	No
`hiring_velocity`	No
`stability_status`	No
`tech_stack_summary`	No
`vendor_health_score`	No
`seo_visibility_trend`	No
`verified_contacts_available`	No
`engineering_and_support_headcount_trend`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedNov 1, 2026

removedOutput schema / anyOf

Removed value: -[
-  {
-    "description": "Only status=ok is charged. Diagnostic results may omit result fields; unknown facts are null.",
-    "properties": {
-      "domain": {
-        "type": "string"
-      },
-      "engineering_and_support_headcount_trend": {
-        "type": "string"
-      },
-      "error_reason": {
-        "type": "string"
-      },
-      "hiring_velocity": {
-        "type": "object"
-      },
-      "limitations": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "sandbox": {
-        "additionalProperties": false,
-        "properties": {
-          "demo_domain": {
-            "const": true,
-            "type": "boolean"
-          },
-          "note": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "demo_domain",
-          "note"
-        ],
-        "type": "object"
-      },
-      "seo_visibility_trend": {
-        "type": "string"
-      },
-      "stability_status": {
-        "enum": [
-          "GROWING",
-          "STABLE",
-          "CONTRACTING",
-          "HIGH_RISK",
-          "UNKNOWN"
-        ],
-        "type": "string"
-      },
-      "status": {
-        "enum": [
-          "ok",
-          "no_data",
-          "unreachable"
-        ],
-        "type": "string"
-      },
-      "tech_stack_summary": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "vendor_domain": {
-        "type": "string"
-      },
-      "vendor_health_score": {
-        "type": [
-          "number",
-          "null"
-        ]
-      },
-      "verified_contacts_available": {
-        "type": [
-          "boolean",
-          "null"
-        ]
-      }
-    },
-    "required": [
-      "domain",
-      "status"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": true,
-    "properties": {
-      "code": {
-        "minLength": 1,
-        "type": "string"
-      },
-      "status": {
-        "maximum": 599,
-        "minimum": 400,
-        "type": "integer"
-      }
-    },
-    "required": [
-      "status",
-      "code"
-    ],
-    "type": "object"
-  }
-]

addedOutput schema / description

Added value: +"Fields only; full schema in GET /v1/catalog."

addedOutput schema / properties

Added value: +{
+  "code": {},
+  "domain": {},
+  "engineering_and_support_headcount_trend": {},
+  "error_reason": {},
+  "hiring_velocity": {},
+  "limitations": {},
+  "sandbox": {},
+  "seo_visibility_trend": {},
+  "stability_status": {},
+  "status": {},
+  "tech_stack_summary": {},
+  "vendor_domain": {},
+  "vendor_health_score": {},
+  "verified_contacts_available": {}
+}

Changed3 schema fields changedNov 1, 2026

addedOutput schema / anyOf

Added value: +[
+  {
+    "description": "Only status=ok is charged. Diagnostic results may omit result fields; unknown facts are null.",
+    "properties": {
+      "domain": {
+        "type": "string"
+      },
+      "engineering_and_support_headcount_trend": {
+        "type": "string"
+      },
+      "error_reason": {
+        "type": "string"
+      },
+      "hiring_velocity": {
+        "type": "object"
+      },
+      "limitations": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "sandbox": {
+        "additionalProperties": false,
+        "properties": {
+          "demo_domain": {
+            "const": true,
+            "type": "boolean"
+          },
+          "note": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "demo_domain",
+          "note"
+        ],
+        "type": "object"
+      },
+      "seo_visibility_trend": {
+        "type": "string"
+      },
+      "stability_status": {
+        "enum": [
+          "GROWING",
+          "STABLE",
+          "CONTRACTING",
+          "HIGH_RISK",
+          "UNKNOWN"
+        ],
+        "type": "string"
+      },
+      "status": {
+        "enum": [
+          "ok",
+          "no_data",
+          "unreachable"
+        ],
+        "type": "string"
+      },
+      "tech_stack_summary": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "vendor_domain": {
+        "type": "string"
+      },
+      "vendor_health_score": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "verified_contacts_available": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "domain",
+      "status"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": true,
+    "properties": {
+      "code": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "status": {
+        "maximum": 599,
+        "minimum": 400,
+        "type": "integer"
+      }
+    },
+    "required": [
+      "status",
+      "code"
+    ],
+    "type": "object"
+  }
+]

removedOutput schema / description

Removed value: -"Fields only; full schema in GET /v1/catalog."

removedOutput schema / properties

Removed value: -{
-  "code": {},
-  "domain": {},
-  "engineering_and_support_headcount_trend": {},
-  "error_reason": {},
-  "hiring_velocity": {},
-  "limitations": {},
-  "sandbox": {},
-  "seo_visibility_trend": {},
-  "stability_status": {},
-  "status": {},
-  "tech_stack_summary": {},
-  "vendor_domain": {},
-  "vendor_health_score": {},
-  "verified_contacts_available": {}
-}

Changed3 schema fields changedNov 1, 2026

removedOutput schema / anyOf

Removed value: -[
-  {
-    "description": "Only status=ok is charged. Diagnostic results may omit result fields; unknown facts are null.",
-    "properties": {
-      "domain": {
-        "type": "string"
-      },
-      "engineering_and_support_headcount_trend": {
-        "type": "string"
-      },
-      "error_reason": {
-        "type": "string"
-      },
-      "hiring_velocity": {
-        "type": "object"
-      },
-      "limitations": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "sandbox": {
-        "additionalProperties": false,
-        "properties": {
-          "demo_domain": {
-            "const": true,
-            "type": "boolean"
-          },
-          "note": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "demo_domain",
-          "note"
-        ],
-        "type": "object"
-      },
-      "seo_visibility_trend": {
-        "type": "string"
-      },
-      "stability_status": {
-        "enum": [
-          "GROWING",
-          "STABLE",
-          "CONTRACTING",
-          "HIGH_RISK",
-          "UNKNOWN"
-        ],
-        "type": "string"
-      },
-      "status": {
-        "enum": [
-          "ok",
-          "no_data",
-          "unreachable"
-        ],
-        "type": "string"
-      },
-      "tech_stack_summary": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "vendor_domain": {
-        "type": "string"
-      },
-      "vendor_health_score": {
-        "type": [
-          "number",
-          "null"
-        ]
-      },
-      "verified_contacts_available": {
-        "type": [
-          "boolean",
-          "null"
-        ]
-      }
-    },
-    "required": [
-      "domain",
-      "status"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": true,
-    "properties": {
-      "code": {
-        "minLength": 1,
-        "type": "string"
-      },
-      "status": {
-        "maximum": 599,
-        "minimum": 400,
-        "type": "integer"
-      }
-    },
-    "required": [
-      "status",
-      "code"
-    ],
-    "type": "object"
-  }
-]

addedOutput schema / description

Added value: +"Fields only; full schema in GET /v1/catalog."

addedOutput schema / properties

Added value: +{
+  "code": {},
+  "domain": {},
+  "engineering_and_support_headcount_trend": {},
+  "error_reason": {},
+  "hiring_velocity": {},
+  "limitations": {},
+  "sandbox": {},
+  "seo_visibility_trend": {},
+  "stability_status": {},
+  "status": {},
+  "tech_stack_summary": {},
+  "vendor_domain": {},
+  "vendor_health_score": {},
+  "verified_contacts_available": {}
+}

Changed1 schema field changedOct 27, 2026

changedOutput schema / anyOf

Previous value: -[
-  {
-    "description": "Only status=ok is charged. Diagnostic results may omit result fields; unknown facts are null.",
-    "properties": {
-      "domain": {
-        "type": "string"
-      },
-      "engineering_and_support_headcount_trend": {
-        "type": "string"
-      },
-      "error_reason": {
-        "type": "string"
-      },
-      "hiring_velocity": {
-        "type": "object"
-      },
-      "limitations": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "seo_visibility_trend": {
-        "type": "string"
-      },
-      "stability_status": {
-        "enum": [
-          "GROWING",
-          "STABLE",
-          "CONTRACTING",
-          "HIGH_RISK",
-          "UNKNOWN"
-        ],
-        "type": "string"
-      },
-      "status": {
-        "enum": [
-          "ok",
-          "no_data",
-          "unreachable"
-        ],
-        "type": "string"
-      },
-      "tech_stack_summary": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "vendor_domain": {
-        "type": "string"
-      },
-      "vendor_health_score": {
-        "type": [
-          "number",
-          "null"
-        ]
-      },
-      "verified_contacts_available": {
-        "type": [
-          "boolean",
-          "null"
-        ]
-      }
-    },
-    "required": [
-      "domain",
-      "status"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": true,
-    "properties": {
-      "code": {
-        "minLength": 1,
-        "type": "string"
-      },
-      "status": {
-        "maximum": 599,
-        "minimum": 400,
-        "type": "integer"
-      }
-    },
-    "required": [
-      "status",
-      "code"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "description": "Only status=ok is charged. Diagnostic results may omit result fields; unknown facts are null.",
+    "properties": {
+      "domain": {
+        "type": "string"
+      },
+      "engineering_and_support_headcount_trend": {
+        "type": "string"
+      },
+      "error_reason": {
+        "type": "string"
+      },
+      "hiring_velocity": {
+        "type": "object"
+      },
+      "limitations": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "sandbox": {
+        "additionalProperties": false,
+        "properties": {
+          "demo_domain": {
+            "const": true,
+            "type": "boolean"
+          },
+          "note": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "demo_domain",
+          "note"
+        ],
+        "type": "object"
+      },
+      "seo_visibility_trend": {
+        "type": "string"
+      },
+      "stability_status": {
+        "enum": [
+          "GROWING",
+          "STABLE",
+          "CONTRACTING",
+          "HIGH_RISK",
+          "UNKNOWN"
+        ],
+        "type": "string"
+      },
+      "status": {
+        "enum": [
+          "ok",
+          "no_data",
+          "unreachable"
+        ],
+        "type": "string"
+      },
+      "tech_stack_summary": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "vendor_domain": {
+        "type": "string"
+      },
+      "vendor_health_score": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "verified_contacts_available": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "domain",
+      "status"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": true,
+    "properties": {
+      "code": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "status": {
+        "maximum": 599,
+        "minimum": 400,
+        "type": "integer"
+      }
+    },
+    "required": [
+      "status",
+      "code"
+    ],
+    "type": "object"
+  }
+]

Changed1 schema field changedOct 25, 2026
- changedInput schema / properties / vendor_domain / examples
```
Previous value: -[
-  "example.com"
-]New value: +[
+  "allbirds.com"
+]
```

Changed1 schema field changedOct 24, 2026

addedInput schema / properties / context

Added value: +{
+  "description": "Optional. A few words on why you are calling this tool. Recorded without your identity to improve the tools; leave out personal data.",
+  "type": "string"
+}

Changed4 schema fields changedOct 23, 2026

addedOutput schema / anyOf

Added value: +[
+  {
+    "description": "Only status=ok is charged. Diagnostic results may omit result fields; unknown facts are null.",
+    "properties": {
+      "domain": {
+        "type": "string"
+      },
+      "engineering_and_support_headcount_trend": {
+        "type": "string"
+      },
+      "error_reason": {
+        "type": "string"
+      },
+      "hiring_velocity": {
+        "type": "object"
+      },
+      "limitations": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "seo_visibility_trend": {
+        "type": "string"
+      },
+      "stability_status": {
+        "enum": [
+          "GROWING",
+          "STABLE",
+          "CONTRACTING",
+          "HIGH_RISK",
+          "UNKNOWN"
+        ],
+        "type": "string"
+      },
+      "status": {
+        "enum": [
+          "ok",
+          "no_data",
+          "unreachable"
+        ],
+        "type": "string"
+      },
+      "tech_stack_summary": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "vendor_domain": {
+        "type": "string"
+      },
+      "vendor_health_score": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "verified_contacts_available": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "domain",
+      "status"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": true,
+    "properties": {
+      "code": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "status": {
+        "maximum": 599,
+        "minimum": 400,
+        "type": "integer"
+      }
+    },
+    "required": [
+      "status",
+      "code"
+    ],
+    "type": "object"
+  }
+]

removedOutput schema / description

Removed value: -"Only status=ok is charged. Diagnostic results may omit result fields; unknown facts are null."

removedOutput schema / properties

Removed value: -{
-  "domain": {
-    "type": "string"
-  },
-  "engineering_and_support_headcount_trend": {
-    "type": "string"
-  },
-  "error_reason": {
-    "type": "string"
-  },
-  "hiring_velocity": {
-    "type": "object"
-  },
-  "limitations": {
-    "items": {
-      "type": "string"
-    },
-    "type": "array"
-  },
-  "seo_visibility_trend": {
-    "type": "string"
-  },
-  "stability_status": {
-    "enum": [
-      "GROWING",
-      "STABLE",
-      "CONTRACTING",
-      "HIGH_RISK",
-      "UNKNOWN"
-    ],
-    "type": "string"
-  },
-  "status": {
-    "enum": [
-      "ok",
-      "no_data",
-      "unreachable"
-    ],
-    "type": "string"
-  },
-  "tech_stack_summary": {
-    "items": {
-      "type": "string"
-    },
-    "type": "array"
-  },
-  "vendor_domain": {
-    "type": "string"
-  },
-  "vendor_health_score": {
-    "type": [
-      "number",
-      "null"
-    ]
-  },
-  "verified_contacts_available": {
-    "type": [
-      "boolean",
-      "null"
-    ]
-  }
-}

removedOutput schema / required

Removed value: -[
-  "domain",
-  "status"
-]

AddedOct 18, 2026

TDQS

A3.9/5.0

Behavior4/5

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

Annotations already cover read-only and open-world, and the description adds genuinely non-obvious behavioral facts: a $0.10 charge that applies only to a useful assessment, and that the output explicitly surfaces gaps and limitations with missing history reported as unknown. That pricing/uncertainty disclosure is exactly what structured fields don't convey.

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

Conciseness4/5

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

Front-loads the purpose in the first clause, then the limitation policy, then cost, then alternatives — a sensible priority order with no filler. The '$0.10 only for a useful assessment' phrasing is slightly telegraphic and could be misread on first pass.

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

Completeness4/5

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

An output schema exists, so return values need not be explained; the description covers purpose, cost model, epistemic limitations, and sibling disambiguation. What remains thin is the concrete decision context (what 'unstable' means and how to act on the verdict), a minor gap.

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 coverage is 100%, and both parameters (vendor_domain, context) are documented in the schema including format and length constraints, so baseline 3 applies. The description adds no parameter-level detail such as domain normalization expectations beyond what the schema says.

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

Purpose4/5

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

States a specific domain of assessment (B2B procurement/vendor stability) and the evidence base (public technology and hiring data), which distinguishes it from generic enrichment tools. It is slightly abstract about the exact deliverable, but an agent can tell what the tool produces and roughly how.

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

Usage Guidelines4/5

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

Explicitly routes two adjacent cases to alternatives: get_company_profile for general enrichment and pre_purchase_merchant_trust_check for online-shop purchase risk. It implies this tool is for B2B procurement stability, but doesn't spell out the exact trigger condition (e.g. 'use before signing a vendor contract').

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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Vendor Stability Check

Input Schema

Output Schema

Schema Changelog

TDQS

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