HubSpot MCP

crm_update_company

Modify existing company records in HubSpot CRM by updating validated properties such as contact details, industry classification, and business metrics.

Instructions

Update an existing company with validated properties

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "companyId": "<companyId>",
      "properties": "<properties>"
    },
    "name": "crm_update_company"
  }
}

Input Schema

Name	Required	Description	Default
`companyId`	Yes
`properties`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedv1.0.0Jan 6, 2026

TDQS

C2.8/5.0

Behavior2/5

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

With no annotations provided, the description carries full burden for behavioral disclosure. It mentions 'validated properties' which hints at input validation, but doesn't describe what validation entails, whether the operation is idempotent, what permissions are required, or what happens on success/failure. For a mutation tool with zero annotation coverage, this leaves critical behavioral aspects unspecified.

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?

The description is a single, efficient sentence with zero wasted words. It's appropriately sized for a basic update operation and front-loads the essential information (update action + target resource).

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

Completeness2/5

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

For a mutation tool with no annotations, no output schema, and 0% schema description coverage, the description is inadequate. It doesn't explain what 'validated' means, what happens to unspecified properties, what the response contains, or any error conditions. The agent lacks critical context to use this tool effectively.

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

Parameters2/5

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

Schema description coverage is 0%, so the description must compensate for undocumented parameters. It mentions 'validated properties' which relates to the 'properties' parameter, but doesn't explain what 'companyId' is, what format it expects, or provide any examples of valid property values. With 2 parameters completely undocumented in the schema, the description adds minimal semantic value.

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?

The description clearly states the verb ('Update') and resource ('an existing company'), making the purpose unambiguous. It distinguishes from creation tools like 'crm_create_company' by specifying 'existing'. However, it doesn't explicitly differentiate from other update tools like 'crm_update_contact' or 'crm_update_object' beyond the resource name.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., needing a companyId), when to use batch updates instead, or how it differs from other update operations like 'crm_update_object'. The agent must infer usage from the name alone.

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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