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Dievio

Create List

create_list
Idempotent

Create a list in the selected account/team, respecting plan limits. Can store all search filters.

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": {
      "request_id": "<request_id>",
      "name": "<name>"
    },
    "name": "create_list"
  }
}

Input Schema

NameRequiredDescriptionDefault
nameYes
statusNo
request_idYesStable idempotency UUID. Reuse with identical arguments on retry.
descriptionNo
status_colorNo
status_labelNo
search_filtersNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / search_filters / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "business_model": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "company_location_country": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "company_location_locality": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "company_location_region": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "company_revenue": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "company_websites": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "email_status": {
      -        "enum": [
      -          "all",
      -          "verified",
      -          "likely"
      -        ],
      -        "type": "string"
      -      },
      -      "employee_size": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "first_name": {
      -        "maxLength": 500,
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "funding_end_date": {
      -        "format": "date",
      -        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$",
      -        "type": "string"
      -      },
      -      "funding_start_date": {
      -        "format": "date",
      -        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$",
      -        "type": "string"
      -      },
      -      "include_emails": {
      -        "type": "boolean"
      -      },
      -      "include_phones": {
      -        "type": "boolean"
      -      },
      -      "industries": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "industry_keywords": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "inferred_salary": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "job_departments": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "job_title_seniority": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "job_titles": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "last_name": {
      -        "maxLength": 500,
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "max_results": {
      -        "maximum": 100000,
      -        "minimum": 1,
      -        "type": "integer"
      -      },
      -      "person_location_country": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "person_location_locality": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      },
      -      "person_location_region": {
      -        "items": {
      -          "maxLength": 500,
      -          "minLength": 1,
      -          "type": "string"
      -        },
      -        "maxItems": 100,
      -        "type": "array"
      -      }
      -    },
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "business_model": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "company_location_country": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "company_location_locality": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "company_location_region": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "company_revenue": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "company_websites": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "email_status": {
      +        "description": "Use work to require an address in the work_email field. This checks field availability.",
      +        "enum": [
      +          "all",
      +          "verified",
      +          "likely",
      +          "work"
      +        ],
      +        "type": "string"
      +      },
      +      "employee_size": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "first_name": {
      +        "maxLength": 500,
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "funding_end_date": {
      +        "format": "date",
      +        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$",
      +        "type": "string"
      +      },
      +      "funding_start_date": {
      +        "format": "date",
      +        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$",
      +        "type": "string"
      +      },
      +      "include_emails": {
      +        "type": "boolean"
      +      },
      +      "include_phones": {
      +        "type": "boolean"
      +      },
      +      "industries": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "industry_keywords": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "inferred_salary": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "job_departments": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "job_title_seniority": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "job_titles": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "last_name": {
      +        "maxLength": 500,
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "max_results": {
      +        "maximum": 100000,
      +        "minimum": 1,
      +        "type": "integer"
      +      },
      +      "person_location_country": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "person_location_locality": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      },
      +      "person_location_region": {
      +        "items": {
      +          "maxLength": 500,
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "maxItems": 100,
      +        "type": "array"
      +      }
      +    },
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
  2. Changed1 schema field changed
    • changedInput schema / properties / status / enum
      Previous value: -[
      -  "active",
      -  "needs_review",
      -  "qualified",
      -  "ready_export",
      -  "paused",
      -  "archived"
      -]New value: +[
      +  "active",
      +  "needs_review",
      +  "qualified",
      +  "ready_export",
      +  "paused",
      +  "archived",
      +  "custom"
      +]
  3. First observed

TDQS

C2.9/5.0
Behavior3/5

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

Annotations already declare this is a non-destructive, idempotent write with no open-world access, so the safety profile is covered. The description adds two useful behavioral facts beyond that: list creation is subject to plan limits, and the list can persist search filters. It does not say what happens when plan limits are exceeded (error type, partial failure) or how the created list is returned, which keeps it at a 3.

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?

Two short sentences with no filler, and the core action plus scoping constraint is front-loaded. The second sentence is slightly elliptical ("all search filters" without saying what that enables), but nothing is genuinely wasted.

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?

This is a complex mutation tool: 7 parameters including a nested filter object with ~25 sub-fields, no output schema, and low schema coverage. A two-sentence description leaves an agent without enough to populate filters or understand results and failure modes, so it is inadequate for the tool's complexity.

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 only 14% (essentially just request_id), so the description must compensate and it does not. "Can store all search filters" is the only nod to the large search_filters object, which contains roughly two dozen undocumented sub-fields, and the required name, status enum, and status_label/status_color fields go entirely unexplained.

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 verb and resource ("Create a list") and scopes it to "the selected account/team," which distinguishes it from account-wide operations. It does not explicitly distinguish itself from siblings such as create_status, save_search_results, or preview_leads, so it falls short of a 5.

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?

"Can store all search filters" hints at why one might use it, but there is no explicit when-to-use guidance, no exclusions, and no named alternative (e.g., save_search_results vs. create_list vs. preview_leads). The agent must infer the selection criteria from sibling names 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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