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Presend MCP Server

by io.github.presendapp
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URL tracking-parameter cleaner

url_clean
Read-onlyIdempotent

Removes 60+ known tracking parameters (utm_*, fbclid, gclid and similar) from a URL and returns the clean URL. Does not follow redirects; for that, use redirect_trace.

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": {
      "url": "<url>"
    },
    "name": "url_clean"
  }
}

Input Schema

NameRequiredDescriptionDefault
urlYesURL to strip tracking parameters from (utm_*, fbclid, gclid, and similar).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / url / description
      Previous value: -""New value: +"URL to strip tracking parameters from (utm_*, fbclid, gclid, and similar)."
  2. First observed

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, covering the safety profile. The description adds genuine behavioral context beyond that – the redirect non-behavior and the fact that a clean URL is returned – which helps an agent trust the output shape.

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 tight sentences with zero filler; the core action is front-loaded and the routing hint follows. Every clause earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a deterministic single-input transform with no output schema, the description supplies everything needed: the transformation, the parameter classes handled, and the boundary condition with a sibling pointer.

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?

Only one parameter, and schema coverage is 100%, so the schema already documents the url field fully. The description restates the same examples (utm_*, fbclid, gclid) without adding format or syntax detail, so baseline 3 applies.

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?

States a specific verb (removes), resource (60+ tracking parameters from a URL), and the outcome (returns the clean URL). It is immediately distinguishable from siblings like redirect_trace and link_metadata.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly bounds the tool's scope ('Does not follow redirects') and names the alternative for that case ('for that, use redirect_trace'). This is the when/when-not pattern in miniature.

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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