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pghdma

CallRail MCP

list_webhooks

Retrieve webhook subscriptions for your account or a specific company. Filter by company, page size, and page number to manage integrations efficiently.

Instructions

List webhook subscriptions on the account or one company.

Args: company_id: Filter to webhooks attached to one company. per_page: Page size (max 250). page: 1-indexed. account_id: Auto-resolves if omitted.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
company_idNo
per_pageNo
pageNo
account_idNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

No annotations are present, so the description must cover behavioral traits. It mentions account_id auto-resolution, but lacks details on ordering, error handling, or behavior when both account and company are specified. Adequate but with gaps.

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 short, front-loaded with the main action, and followed by concise parameter explanations. No unnecessary words.

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?

Given the presence of an output schema and low complexity, the description is mostly complete. It covers scope, filtering, paging, and auto-resolution. Minor gap: no explanation of behavior when both company_id and account_id are provided.

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

Parameters4/5

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

With 0% schema description coverage, the description compensates by explaining all four parameters: company_id as filter, per_page max 250, page 1-indexed, account_id auto-resolves. Adds significant value beyond schema titles.

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?

The description clearly states 'List webhook subscriptions on the account or one company.' It uses a specific verb-resource combination and distinguishes itself from 'get_webhook' which is the single retrieval counterpart.

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?

The description provides parameter guidance (filtering, paging, auto-resolution) and implies usage for listing multiple webhooks. However, it does not explicitly state when not to use this tool or mention alternatives beyond the sibling context.

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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