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joplin-mcp-server

joplin-mcp-server

by jordanburke
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

create_note

Generate and organize notes in Joplin by adding titles, markdown or HTML content, todos, and images, while optionally nesting them within specific notebooks.

Instructions

Create a new note in Joplin

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "create_note"
  }
}

Input Schema

NameRequiredDescriptionDefault
bodyNoNote content in Markdown
body_htmlNoNote content in HTML
image_data_urlNoBase64 encoded image data URL
is_todoNoWhether this is a todo note
parent_idNoID of parent notebook
titleNoNote title

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.9/5.0
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states 'Create' which implies a write operation, but doesn't cover permissions, side effects (e.g., if it overwrites existing notes), error handling, or response format. This is inadequate for a mutation tool with zero annotation coverage.

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, efficient sentence with zero wasted words, making it easy to parse. It's front-loaded with the core purpose, though this brevity contributes to gaps in other dimensions.

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

Completeness2/5

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

Given the tool's complexity (6 parameters, mutation operation) and lack of annotations and output schema, the description is insufficient. It doesn't explain return values, error cases, or behavioral nuances, leaving significant gaps for an agent to use the tool effectively.

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%, so the schema fully documents all 6 parameters. The description adds no parameter-specific information beyond implying creation, which doesn't enhance understanding of individual parameters. This meets the baseline for high schema coverage.

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

Purpose4/5

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

The description clearly states the action ('Create') and resource ('a new note in Joplin'), making the purpose immediately understandable. However, it doesn't differentiate from sibling tools like 'edit_note' or 'read_note' beyond the basic verb, missing specific distinctions about when to create versus edit.

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?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., needing a parent notebook ID), exclusions, or comparisons to siblings like 'edit_note' for updates or 'search_notes' for finding existing notes, leaving the agent to infer usage context.

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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