grammar

{d}

SERVERX402 Middleware SOURCE@gadgethumans/x402

Low RISK CLASS

Category Read

Parameters 51 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-gadgethumans-swarm-x402-middleware/grammar.md

WHAT IT DOES

What grammar does on X402 Middleware

AI agents call grammar to retrieve information from X402 Middleware without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required
`to`	string	—
`desc`	string	—
`text`	string	Yes
`tool`	string	—
`params_desc`	string	—

Parameters from the server's own tool schema.

RISK

Why grammar is rated Low

Based on the tool name alone, 'grammar' most likely performs grammatical analysis or checking of text, which is a read-only operation that retrieves or queries linguistic properties without side effects. The empty description ({d}) limits confidence slightly, but the name strongly indicates a Read category function.

From the tool's definition Tool name 'grammar' with empty description ({d}) suggests text analysis. No description provided to indicate modification, execution, or financial operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs grammar safely

PolicyLayer is an MCP gateway: it sits between your AI agents and X402 Middleware, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For grammar, this is the rule to start with:

grammar Allowed

grammar is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "grammar": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect X402 Middleware, apply this rule, and every grammar call is checked against it from then on.

FAQ

Questions about grammar

What does the grammar tool do? +

{d}. It is categorised as a Read tool in the X402 Middleware MCP Server, which means it retrieves data without modifying state.

What parameters does grammar accept? +

grammar accepts 5 parameters: to, desc, text, tool, params_desc. Required: text. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on grammar? +

Register the X402 Middleware MCP server in PolicyLayer and add a rule for grammar: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches X402 Middleware. Nothing to install.

What risk level is grammar? +

grammar is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit grammar? +

Yes. Add a rate_limit block to the grammar rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block grammar completely? +

Set action: deny in the PolicyLayer policy for grammar. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides grammar? +

grammar is provided by the X402 Middleware MCP server (@gadgethumans/x402). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on X402 Middleware, and thousands of servers like it.

This server

All 58 X402 Middleware tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →