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picgo-mcp

picgo-mcp

by timerring
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

Upload multiple images with PicGo

upload_images

Upload up to 20 local images or HTTP(S) URLs to PicGo-configured image hosts in a single batch, reusing existing settings without the desktop app.

Instructions

Upload up to 20 local image files or HTTP(S) image URLs in one PicGo batch.

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": {
      "sources": "<sources>"
    },
    "name": "upload_images"
  }
}

Input Schema

NameRequiredDescriptionDefault
sourcesYesLocal file paths, file:// URLs, or HTTP(S) image URLs

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4/5.0
Behavior3/5

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

Annotations already declare readOnly=false, idempotent=false, and destructive=false. The description adds that the operation is a batched upload accepting files or URLs, but it does not disclose side effects such as duplicate uploads on repeated calls or how partial failures are handled. This is modest added context beyond annotations, but not comprehensive.

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?

A single sentence captures the action, accepted inputs, count limit, and batching model. It is front-loaded and every phrase earns its place.

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 one-parameter tool, the definition is sufficient to understand what to pass and why this tool is relevant. The only meaningful gaps are the absence of an explicit mention of the singular sibling and no description of return values or error behavior, but these are minor given the tool's simplicity.

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 description coverage is 100%, and the description mostly restates the schema's own information: local paths, file:// URLs, HTTP(S) URLs, and the 20-item limit. It confirms the parameter's meaning but does not add meaningful detail beyond the schema, so the 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?

The description states a specific action verb and resource: uploading local image files or HTTP(S) image URLs. It also specifies the batch boundary of up to 20, which clearly differentiates this tool from the singular sibling upload_image.

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

Usage Guidelines4/5

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

The phrase 'in one PicGo batch' plus 'up to 20' clearly establishes this is the tool for multiple-image uploads. It does not explicitly name upload_image for the single-image case or explain when to use get_picgo_status, but the usage context is strongly implied.

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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