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crm_create_lead_property

Add custom fields to HubSpot CRM leads to capture specific data for improved contact management and segmentation.

Instructions

Create a new lead property

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYes
labelYes
typeYes
fieldTypeYes
groupNameYes
descriptionNo
optionsNo
displayOrderNo
hasUniqueValueNo
hiddenNo
formFieldNo
Behavior1/5

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

No annotations are provided, so the description must fully disclose behavioral traits. It only states the action ('Create') without addressing permissions, side effects, rate limits, or response format. This is inadequate for a mutation tool with 11 parameters, as it omits critical behavioral context.

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 extremely concise—a single sentence with no wasted words. It is front-loaded and to the point, though this brevity contributes to its inadequacy in other dimensions.

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

Completeness1/5

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

Given the complexity (11 parameters, no annotations, no output schema, 0% schema coverage), the description is severely incomplete. It lacks purpose differentiation, usage guidelines, behavioral details, and parameter explanations, making it insufficient for effective tool invocation.

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

Parameters1/5

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

Schema description coverage is 0%, meaning parameters are undocumented in the schema. The description adds no information about any parameters (e.g., explaining 'name', 'type', 'options'), failing to compensate for the schema gap. With 11 parameters, this leaves the agent guessing about their meanings and usage.

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

Purpose2/5

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

The description 'Create a new lead property' restates the tool name with minimal elaboration, making it a tautology. It specifies the verb ('Create') and resource ('lead property') but lacks detail on what a 'lead property' entails or how it differs from similar tools like crm_create_company_property or crm_create_contact_property, failing to distinguish from siblings.

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

Usage Guidelines1/5

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

No guidance is provided on when to use this tool versus alternatives. The description does not mention prerequisites, context, or comparisons to sibling tools (e.g., crm_create_company_property, crm_create_contact_property), leaving the agent without usage direction.

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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