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Rubin Exchange

by trade.rubin
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Close all positions

close_all_positions

Flatten EVERY open perpetual position with reduce-only MARKET orders (one per market). Respects the operator market allowlist (disallowed markets are skipped and reported). Each close is bounded at oracle ± slippageBps mirrored by side (default 500 bps = 5%). Returns a per-market result array — for any market reporting unfilled/partially_filled, re-run with a larger slippageBps.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "close_all_positions"
  }
}

Input Schema

NameRequiredDescriptionDefault
confirmNo
slippageBpsNoMax slippage vs oracle, in bps (default 500). Raise to sweep thin books.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / slippageBps / description
      Previous value: -"Max slippage vs oracle, in bps"New value: +"Max slippage vs oracle, in bps (default 500). Raise to sweep thin books."
  2. Added

TDQS

A4.2/5.0
Behavior4/5

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

Annotations are all false, so the description carries the full burden. It discloses the use of reduce-only market orders, respect for allowlist, slippage bounds, and the return of a result array. It does not mention potential destructive nature on positions, but the action is inherently destructive.

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 very concise, two sentences that front-load the action and efficiently convey key behavioral details without extraneous 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?

Given no output schema and only two parameters, the description covers the essential behavior: how orders are placed, allowlist handling, slippage control, and post-action guidance. Could be slightly more explicit about return format but adequate.

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 coverage is 50% (only slippageBps has a schema description). The description adds meaningful context for slippageBps (default, purpose), but does not mention the confirm parameter or its boolean semantics.

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 a specific verb 'Flatten' and identifies the resource 'every open perpetual position', clearly differentiating it from the sibling 'close_position' which targets a single position. The action is unambiguous.

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?

Provides guidance on re-running with larger slippage if unfilled and mentions the operator market allowlist. However, it does not explicitly compare with alternatives like 'cancel_all_orders' or indicate when not to use this tool.

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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