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TrackLine
by TrackLine

subscriptions_get_by_uuid

Retrieve subscription details using a unique identifier to access specific VPN panel information for administration purposes.

Instructions

Get subscription details by UUID

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
uuidYesSubscription UUID

Implementation Reference

  • Tool registration and handler for subscriptions_get_by_uuid.
    server.tool(
        'subscriptions_get_by_uuid',
        'Get subscription details by UUID',
        {
            uuid: z.string().describe('Subscription UUID'),
        },
        async ({ uuid }) => {
            try {
                const result = await client.getSubscriptionByUuid(uuid);
                return toolResult(result);
            } catch (e) {
                return toolError(e);
            }
        },
    );
  • Client helper method that executes the API request for subscription retrieval by UUID.
    async getSubscriptionByUuid(uuid: string) {
        return this.get(REST_API.SUBSCRIPTIONS.GET_BY.UUID(uuid));
    }
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It indicates a read operation ('Get') but doesn't specify permissions required, error conditions (e.g., invalid UUID format), rate limits, or response format. This leaves significant gaps in understanding how the tool behaves beyond its basic function.

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, direct sentence with zero wasted words. It front-loads the core purpose efficiently, making it easy for an agent to parse and understand immediately without unnecessary elaboration.

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 tool with no annotations and no output schema, the description is insufficient. It lacks details on authentication needs, error handling, return data structure, or how it differs from sibling tools. Given the context of multiple similar retrieval tools, more completeness is needed to guide proper agent selection.

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 description coverage is 100%, with the single parameter 'uuid' fully documented in the schema as 'Subscription UUID'. The description adds no additional parameter semantics beyond what the schema provides, so it meets the baseline for high schema coverage without compensating 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 action ('Get') and resource ('subscription details') with a specific identifier ('by UUID'), making the purpose immediately understandable. However, it doesn't differentiate from sibling tools like 'subscription_info' or 'subscriptions_get_by_username', which appear to serve similar retrieval functions but use different identifiers.

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?

No guidance is provided on when to use this tool versus alternatives like 'subscription_info' or 'subscriptions_get_by_username'. The description only states what it does, leaving the agent to infer usage context from tool names alone without explicit 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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