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SimonTarara62

capitalcom-mcp-server

cap_trade_preview_working_order

Preview a limit or stop working order without side effects. Returns a preview_id for validation before placement.

Instructions

Preview a working order (NO SIDE EFFECTS). type is LIMIT or STOP. Returns preview_id.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
epicYes
directionYes
typeYes
levelYes
sizeYes
guaranteed_stopNo
trailing_stopNo
stop_levelNo
stop_distanceNo
stop_amountNo
profit_levelNo
profit_distanceNo
profit_amountNo
good_till_dateNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

No annotations are provided, so the description carries full burden. It states no side effects and returns preview_id, but lacks details on permissions, rate limits, or behavior under invalid inputs. Basic transparency is present but incomplete.

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?

Two sentences with no wasted words. First sentence defines purpose and safety, second adds type constraint and return value. Front-loaded and efficient.

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?

With 14 parameters (5 required) and no schema descriptions, the description is too sparse. It fails to explain key parameters, return format, or validation rules. The output schema exists but its content is not provided, leaving a significant gap.

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 0%, and the description only clarifies that 'type' is LIMIT or STOP. It does not explain the other 13 parameters, including required ones like epic, direction, level, and size. The description adds minimal value for parameter understanding.

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 the verb 'Preview' and the resource 'working order', explicitly noting no side effects. It distinguishes from siblings like cap_trade_execute_working_order by being a preview action.

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 'NO SIDE EFFECTS' statement suggests safe usage for testing, and the name implies use before executing. However, it does not explicitly guide when not to use or mention alternatives beyond the implied distinction.

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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