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anfs-pain

NinjaTrader 8 MCP Server

by anfs-pain

nt_orders

Retrieve NinjaTrader 8 orders with optional filters by account and status (Working, Accepted, Filled, Cancelled, Rejected).

Instructions

List orders, optionally filtered by account and/or status (Working, Accepted, Filled, Cancelled, Rejected).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
statusNo
accountIdNo
Behavior3/5

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

With no annotations provided, the description carries the burden of conveying safety and behavior. 'List' implies a read-only operation, and the optional filters are mentioned, but the description does not disclose return format, default behavior (all orders), or any potential side effects. It is adequate but lacks richer 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 a single, front-loaded sentence with no redundant words. It states the primary action first and then provides concise filter information.

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?

For a simple list tool with two optional parameters and no output schema, the description covers the essential purpose and filters. It implies default behavior (all orders) via 'optionally filtered', though it does not describe the response structure. This is adequately complete given the tool's simplicity.

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?

Despite 0% schema description coverage, the description effectively explains both parameters: 'account' maps to accountId and 'status' lists all allowed enum values. It also indicates both are optional. This compensates well for the lack of schema-level documentation.

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 uses the specific verb 'List' with the resource 'orders', and explicitly mentions optional filters for account and status. This clearly distinguishes it from sibling tools like nt_place_order and nt_cancel_order, which perform different actions.

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 clearly implies when to use this tool (to view orders) and mentions the filtering options. However, it does not explicitly state when not to use it or name alternatives, but the context of sibling tools makes the intended usage clear.

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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