gimp-agent-mcp

by SarutobiSasuke8

Overview Schema Source Related Servers Discussions Admin

Python

Local

gimp_open

Open an image file and return its structure, making the image content accessible for editing, analysis, and recipes.

Instructions

Open an image file (PNG, JPEG, WebP, XCF, PSD, SVG, ...) and return its structure.

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": {
      "path": "<path>"
    },
    "name": "gimp_open"
  }
}

Input Schema

Name	Required	Description	Default
`path`	Yes

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.2.0Sep 5, 2026

TDQS

B3.3/5.0

Behavior2/5

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

With no annotations provided, the description carries the full disclosure burden. It reveals the main action and return value, but does not disclose that opening a file likely adds an image to the current GIMP session, requires a running GIMP instance, or may fail on unsupported/missing paths. This is a significant behavioral gap for a state-changing operation.

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?

The description is a single, front-loaded sentence with no filler. The core action, target resource, supported formats, and return value are all conveyed efficiently.

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?

The description covers the core purpose and notes the return structure, and an output schema exists for return details. However, it omits prerequisite launch steps, the effect on the image list, and path format expectations. For a simple one-parameter tool this is adequate but not fully complete.

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 0%, so the description must compensate. It partially does by listing supported file types for the path, but it does not clarify whether the path should be absolute or relative, whether remote paths are allowed, or what happens with missing files. The format list adds some meaning, but leaves key path semantics unstated.

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 verb and resource: 'Open an image file' and 'return its structure.' It lists supported formats, which adds precision, and the action of opening a file clearly distinguishes this tool from siblings like gimp_new_image (create) and gimp_list_images (list existing).

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 is given about when to prefer this tool over alternatives, nor any exclusions or prerequisites. The description implies the obvious use case of loading a file, but it does not mention that GIMP may need to be launched first or that gimp_image_info should be used for already-open images.

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