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e18e

by dev.e18e
OverviewDiscussionsAdmin

Check if a package has a more performant, maintained or efficient replacement by package name, replacement text, or topic. Returns a list of suggestions with descriptions and documentation links.

lookup-replacement

Check if a package has a more performant, maintained or efficient replacement by package name, replacement text, or topic. Returns a list of suggestions with descriptions and documentation links.

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": {
      "query": "<query>"
    },
    "name": "lookup-replacement"
  }
}

Input Schema

NameRequiredDescriptionDefault
queryYesThe package name, replacement text, or topic to search for, e.g. `chalk`, `filter`, or `Array.prototype.map`.

Output Schema

NameRequiredDescriptionDefault
resultsYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

C2.9/5.0
Behavior3/5

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

Without annotations, the description bears full burden. It mentions returning a list of suggestions with descriptions and links, but lacks details on side effects, rate limits, or performance implications.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences that front-load key information. Some redundancy exists between the two sentences (both mention returning a list). Could be slightly tighter.

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

Completeness3/5

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

For a simple one-parameter tool with output schema, the description covers basic functionality and output. Lacks usage context or error conditions, which would be helpful for completeness.

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 100% with a detailed description and examples. The tool description merely restates the parameter purpose without adding new semantic value beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

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

Usage Guidelines3/5

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

The description implies usage when seeking better package alternatives, but gives no explicit guidance on when not to use or how it compares to sibling tools 'code-checker' and 'npm-i-checker'.

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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