HexScan Token Security

simulate_transfer

Simulate buy-then-sell on-chain. Args: address (0x...), chain. Returns: canBuy, canSell, revertReason, verdict (ALLOW/REVIEW/BLOCK). Uses real eth_call simulation.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "address": "<address>",
      "chain": "<chain>"
    },
    "name": "simulate_transfer"
  }
}

Input Schema

Name	Required	Description	Default
`chain`	Yes	Chain name
`address`	Yes	Token contract address

Schema Changelog

Changes observed during successful MCP inspections.

AddedSep 20, 2026

TDQS

A3.5/5.0

Behavior3/5

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 does mention 'Uses real eth_call simulation' and lists return values including revertReason, which gives some insight into execution behavior. However, it does not explicitly state that the operation is read-only, any potential side effects, or limitations such as chain support or rate limits, leaving 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 concise, with two sentences that front-load the purpose and then cover args, returns, and method. Every sentence contributes information, and there is no fluff or redundancy.

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 tool with only two parameters and no output schema, the description covers the essential details: what it does, the arguments, the return values, and the simulation method. It could be improved by mentioning supported chains or typical use cases, but it is sufficiently complete for basic invocation.

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?

The input schema already documents both parameters with 100% coverage, so the baseline is 3. The description adds value by specifying the address format as '0x...', which clarifies the expected input format beyond the schema's 'Token contract address'. This extra hint justifies a 4.

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 tool simulates a buy-then-sell on-chain operation, which is a specific verb and resource. It also lists the return fields, making the purpose unambiguous. However, it does not explicitly differentiate this tool from its siblings (honeypot_check, scan_token), so it lacks the distinction that would earn a 5.

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?

The description provides no guidance on when to use this tool instead of alternatives. It simply states what it does without indicating scenarios or exclusions. The agent must infer from the name or context, which is insufficient for clear routing.

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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