Skip to main content
Glama
jwalsh

MCP QR Code Server

by jwalsh

generate-qrcode

Generate QR codes from any content with configurable error correction and size. Choose image or text output.

Instructions

Generate QR codes in various formats with customizable error correction levels and sizes

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sizeNoSize of the QR code (1-10)
formatNoOutput format: 'image' for PNG QR code, 'text' for terminal-friendly outputimage
contentYesThe text content to encode in the QR code
errorCorrectionLevelNoError correction level (L: 7%, M: 15%, Q: 25%, H: 30%)M
Behavior2/5

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

No annotations, so description carries full burden. It doesn't disclose side effects, read-only nature, or return behavior. 'Generate' implies creation but unclear if it's side-effect-free or returns data.

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?

Single sentence, no wasted words. Immediately states the primary action and key features. Efficient and front-loaded.

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?

Minimal description for a 4-param tool with no output schema. Doesn't explain return format, provide examples, or cover edge cases. Adequate but could be more helpful.

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 descriptions for each parameter. The description adds 'various formats' and 'customizable' but doesn't go beyond schema details. Baseline 3 due to high coverage.

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?

Clearly states the verb 'Generate' and resource 'QR codes', and highlights key customizations (formats, error correction, sizes). Without siblings, no need for differentiation, but it accurately captures the tool's function.

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?

No guidance on when to use vs alternatives (though no siblings exist), no prerequisites, typical use cases, or exclusions. Purely functional description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/jwalsh/mcp-server-qrcode'

If you have feedback or need assistance with the MCP directory API, please join our Discord server