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OmniFocus MCP Server

OmniFocus MCP Server

by estrenuo
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

Delete Project

omnifocus_delete_project
Destructive

Delete a project and all its tasks from OmniFocus permanently. Provide the project ID or name to remove it.

Instructions

Permanently delete a project from OmniFocus, including its tasks. This cannot be undone via MCP.

Use either the project ID from list/search results, or the project name.

Args:

  • projectId (string, optional): The project's ID. Takes priority if both projectId and projectName provided.

  • projectName (string, optional): The project's name to search for. At least one of projectId or projectName is required.

Returns: Confirmation message with the deleted project's name

Examples:

  • Delete by ID: { projectId: "abc123" }

  • Delete by name: { projectName: "Old project" }

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": "omnifocus_delete_project"
  }
}

Input Schema

NameRequiredDescriptionDefault
projectIdNoThe project ID to delete. Takes priority if both projectId and projectName are provided.
projectNameNoThe project name to search for. At least one of projectId or projectName is required.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A4.5/5.0
Behavior4/5

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

Annotations indicate destructiveHint=true, but the description adds valuable context: the action is permanent and includes the project’s tasks. This goes beyond the annotation, though it could mention irreversible consequences for linked 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?

The description is concise, front-loaded with the core action, and includes structured Args, Returns, and Examples sections. No unnecessary words.

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

Completeness5/5

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

Given the simplicity of the tool and no output schema, the description fully covers what the tool does, how to use it, and what to expect as a return. Examples further clarify usage.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema already covers both parameters with descriptions (100% coverage). The description adds priority logic (projectId takes priority) and the at-least-one requirement, which is not in the schema.

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 clearly states the tool permanently deletes a project and its tasks, distinguishing it from sibling tools like omnifocus_delete_folder or omnifocus_delete_task. The verb 'delete' matches the title, and the scope is well-defined.

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 description provides clear guidance on how to specify the target (by ID or name) and that at least one parameter is required. It does not explicitly mention when to use versus alternatives, but for a delete operation this is sufficient.

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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