OmniFocus MCP Server
This server connects AI assistants to OmniFocus on macOS, providing full management of tasks, projects, folders, tags, and perspectives through a Model Context Protocol (MCP) interface.
Task Management: Create tasks with notes, due/defer/planned dates, flags, estimates, recurrence, subtasks, and tags; update, complete, drop, delete tasks; manage notes; add/remove tags (batch up to 100); list inbox, due, planned, and flagged tasks.
Project Management: Create, update, delete projects; set folder, status, sequential mode, review interval; manage notes; get project tasks; identify projects overdue for review and mark reviewed (batch).
Organization: List, create, rename, delete folders; list tags and perspectives; retrieve tasks from perspectives.
Search: Universal search across tasks, projects, folders, and tags.
Safety: Duplicate-name detection prevents silent mismatches; mutations are verified to ensure reliable operation.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@OmniFocus MCP ServerShow me my inbox tasks"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
OmniFocus MCP Server
A Model Context Protocol (MCP) server that enables AI assistants to interact with OmniFocus on macOS via JXA (JavaScript for Automation).
Features
This MCP server provides access to OmniFocus functionality:
Task Management
List inbox tasks - View and filter tasks in your inbox (including multi-tag filtering)
Create tasks - Add new tasks with full property support (due dates, planned dates, tags, notes, subtasks, recurrence)
Update tasks - Change name, note, dates, flag, estimate, recurrence, or move a task to another project
Complete/Drop tasks - Mark tasks as done or dropped, individually or in batch
Delete tasks - Remove a task permanently
Update task notes - Replace, clear, or append to a task's note
Get due tasks - Find tasks due within a timeframe
Get planned tasks - Find tasks planned within a timeframe
Get flagged tasks - List all flagged items
Add/remove tags from tasks - Manage task tags, individually or in batch
Project Management
List projects - View projects with status filtering
Get project tasks - List all tasks belonging to a project
Create projects - New projects with folder placement, status, dates, sequential mode, review interval
Update projects - Change name, note, status, flag, dates, sequential mode, review interval
Delete projects - Remove a project and its tasks
Update project notes - Replace, clear, or append to a project's note
Get projects for review - Find projects needing review, optionally with their incomplete tasks
Mark project reviewed - Update a project's review status and next review date
Batch mark reviewed - Efficiently review multiple projects at once
Organization
List folders - View folder hierarchy
Create/rename/delete folders - Manage the folder tree (including nested folders)
List tags - View all tags
List perspectives - View built-in and custom perspectives
Get perspective tasks - List tasks shown in a specific perspective
Search
Universal search - Search across tasks, projects, folders, and tags
Safety properties
No silent winner on duplicate names. OmniFocus allows two projects (or tasks) to share a name. Name lookups collect every match and fail with the matching IDs when there is more than one, so a rename, move or delete can never hit the wrong item while reporting success.
Mutations are verified. Operations that JXA can fail silently at (notably moving a task between projects) read the result back inside the same script, so a failed move is reported as an error rather than as success.
Related MCP server: OmniFocus MCP Server
Requirements
macOS (OmniFocus is macOS/iOS only, and this server uses JXA)
OmniFocus 3+ installed
Node.js 18+
Automation permissions enabled for your terminal/client app
Installation
Clone or download this repository:
cd omnifocus-mcp-serverInstall dependencies:
npm installBuild the TypeScript:
npm run buildConfigure your MCP client to use the server (see Configuration below)
Configuration
Claude Desktop
Add to your Claude Desktop configuration file (~/Library/Application Support/Claude/claude_desktop_config.json):
{
"mcpServers": {
"omnifocus": {
"command": "/opt/homebrew/bin/node",
"args": ["/path/to/omnifocus-mcp-server/dist/index.js"]
}
}
}Use an absolute path to the node binary. A bare "node" resolves against the GUI session's PATH, which does not include Homebrew or a version manager's shims, so the server fails to start with a "server unreachable"-style error even though it runs fine from your terminal. Find yours with which node.
Other MCP Clients
The server uses stdio transport by default, so configure your client to spawn:
node /path/to/omnifocus-mcp-server/dist/index.jsRemote access (HTTP transport)
For remote clients — most importantly claude.ai custom connectors, which is how the Claude iOS app reaches MCP servers — the server can run as a Streamable HTTP endpoint:
MCP_TRANSPORT=http \
MCP_AUTH_TOKEN="$(openssl rand -hex 32)" \
node /path/to/omnifocus-mcp-server/dist/index.jsEnvironment variables:
Variable | Default | Purpose |
|
| Set to |
|
| Port to listen on |
|
| Bind address (keep loopback; expose via a tunnel) |
| — | Required shared secret; the server refuses to start without it |
| — | Public HTTPS origin the server is reachable at (e.g. |
|
| Kill a JXA script that hangs (applies to both transports) |
The MCP endpoint is /mcp. Authentication accepts either an Authorization: Bearer <token> header, or the token as a path segment (/mcp/<token>) for clients that cannot send custom headers. GET /health is unauthenticated.
Reaching it from claude.ai / the iOS app. Custom connectors connect from Anthropic's cloud (not from your device), so the endpoint must be publicly reachable over HTTPS. A Cloudflare Tunnel or a Tailscale Funnel both work for this — either way, a local process makes an outbound connection, so no ports are opened. (Plain Tailscale, without Funnel, does not: that only reaches your own tailnet, and Anthropic's cloud isn't on it.) Optionally restrict access to Anthropic's outbound IP range (160.79.104.0/21) in a Cloudflare WAF rule.
claude.ai's and Claude Desktop's "Connectors" UI (as opposed to a raw MCP config / direct API client) always drives a full OAuth handshake before it will call a remote server — it does not accept the static token by itself, even embedded in the URL. Set MCP_PUBLIC_URL to your tunnel's public origin to turn on a self-issued OAuth layer that satisfies this while still gating access with the same static secret (see oauth.ts / CLAUDE.md for how). With that set, add the connector in Settings → Connectors using the path-token URL (https://your-tunnel-host/mcp/<token>) — the "Connect" step will complete the OAuth handshake automatically. If your tunnel also proxies / to a different local service, make sure /authorize, /token, /register, and /.well-known/* are mapped to this server too, or the OAuth requests never arrive here.
The Mac must stay awake with OmniFocus running (caffeinate -s or Amphetamine).
Session semantics — single client only. The HTTP transport serves one session at a time: a new initialize replaces the previous session. Every tool call is stateless, and a spec-compliant client re-initializes when it receives 404 for a session that no longer exists, so a single client calling sequentially works fine. That 404 also covers the case where the server holds no session at all, which is what happens to every client after the server restarts — they re-initialize instead of treating it as a dead endpoint.
Two clients at once do not. Reproduced by firing two concurrent initialize→tools/list sequences at the public endpoint: one consistently 404s. The underlying MCP SDK binds a single transport to the shared server instance, so the losing session is evicted and its in-flight request either 404s or hangs. Fixing this requires a per-session McpServer instance rather than the current registration-on-a-singleton pattern; it is not currently planned. See CLAUDE.md for the details.
Troubleshooting a "can't connect" client. Clients collapse every remote failure into one vague message, so read this server's log (StandardErrorPath of your launch agent) rather than the client's wording — the status code says which of three unrelated things went wrong:
What the log shows | Meaning | Fix |
| The token in the client's URL is wrong or truncated | Re-copy |
| Same cause, seen from the OAuth side. A | As above |
| Normal recovery after a restart or a session takeover | Nothing; the client re-initializes itself |
| Working. The client name identifies which one | — |
If nothing appears in the log at all, the request never reached this server: check the tunnel's path mappings, not this code.
Permissions
On first use, macOS will prompt you to allow automation access:
Go to System Preferences → Security & Privacy → Privacy → Automation
Enable permission for your terminal or Claude Desktop to control OmniFocus
Tool Reference
All 31 tools are listed below, grouped by area.
omnifocus_list_inbox
List tasks in the inbox, optionally filtered by tags.
{
"includeCompleted": false,
"limit": 50,
"tags": ["Work", "Urgent"],
"tagMatchMode": "all"
}tagMatchMode is "all" (task has every listed tag, default), "any" (at least one), or "none" (none of them). It only applies when tags is given. The same two parameters work on omnifocus_get_due_tasks, omnifocus_get_flagged_tasks and omnifocus_get_planned_tasks.
omnifocus_list_projects
List projects with filtering.
{
"status": "active",
"folderName": "Work",
"limit": 50
}omnifocus_get_project_tasks
Get all tasks belonging to one project.
{
"projectId": "abc123",
"includeCompleted": false,
"limit": 100
}omnifocus_create_project
Create a project, optionally inside a folder.
{
"name": "Website redesign",
"note": "Q1 initiative",
"folderName": "Work",
"dueDate": "2024-03-31T17:00:00",
"deferDate": "2024-01-15T09:00:00",
"flagged": false,
"sequential": false,
"status": "active",
"reviewIntervalDays": 7
}status is "active" (default), "on hold", "done" or "dropped". sequential: false (default) makes a parallel project.
omnifocus_update_project
Update project properties. Identify by projectId or projectName (ID wins).
{
"projectId": "abc123",
"name": "Website redesign v2",
"status": "on hold",
"flagged": true,
"dueDate": null,
"sequential": true,
"reviewIntervalDays": 14
}Pass null for note, dueDate or deferDate to clear them. A project cannot be moved to another folder (JXA limitation).
omnifocus_delete_project
Delete a project and its tasks. Identify by projectId or projectName (ID wins).
{
"projectId": "abc123"
}omnifocus_list_folders
List all folders.
{
"status": "active",
"limit": 50
}omnifocus_create_folder
Create a folder, top-level or nested.
{
"name": "Clients",
"parentFolderName": "Work"
}omnifocus_update_folder
Rename a folder. Identify by folderId or folderName (ID wins). A folder cannot be moved into another folder (JXA limitation).
{
"folderName": "Clients",
"name": "Key clients"
}omnifocus_delete_folder
Delete a folder and everything in it. Identify by folderId or folderName (ID wins).
{
"folderId": "abc123"
}omnifocus_list_tags
List all tags.
{
"status": "active",
"limit": 50
}omnifocus_list_perspectives
List perspectives (built-in and custom).
{
"limit": 50
}omnifocus_get_perspective_tasks
Get tasks shown in a specific perspective.
{
"perspectiveName": "Next",
"limit": 50
}omnifocus_create_task
Create a new task.
{
"name": "Review quarterly report",
"note": "Check all sections",
"projectName": "Work",
"dueDate": "2024-12-31T17:00:00",
"deferDate": "2024-12-01T09:00:00",
"plannedDate": "2024-12-15T09:00:00",
"flagged": true,
"estimatedMinutes": 60,
"tagNames": ["Review", "Important"],
"parentTaskId": "xyz789",
"recurrence": {
"frequency": "weekly",
"interval": 1,
"daysOfWeek": ["Monday", "Thursday"],
"repeatFrom": "due-date"
}
}Planned Date vs Due Date:
dueDate: When the task must be completed (deadline)plannedDate: When you intend to work on the task (planning)This distinction is crucial for separating deadlines from scheduled work time
Recurrence: frequency is "daily", "weekly", "monthly" or "yearly". Use daysOfWeek for weekly, dayOfMonth (1-31) for monthly, monthOfYear (1-12) for yearly. repeatFrom is "due-date" (default) or "completion-date".
Subtasks: pass parentTaskId to create the task as a child of an existing task.
omnifocus_update_task
Update an existing task. Identify by taskId or taskName (ID wins).
{
"taskId": "abc123",
"name": "Review quarterly report (final)",
"note": null,
"dueDate": "2024-12-20T17:00:00",
"flagged": true,
"estimatedMinutes": 45,
"projectName": "Work"
}Pass
nullfornote,dueDate,deferDateorplannedDateto clear them;estimatedMinutes: 0clears the estimate.projectId/projectNamemoves the task to that project (subtasks come along). The move is verified afterwards, so a failure is reported as an error instead of a false success.recurrencetakes the same object ascreate_task;recurrence: nullorclearRecurrence: trueturns repetition off.
omnifocus_delete_task
Delete a task. Identify by taskId or taskName (ID wins).
{
"taskId": "abc123"
}omnifocus_update_task_note
Replace, clear, or append to a task's note. Identify by taskId or taskName (ID wins).
{
"taskId": "abc123",
"note": "Added after the call.",
"append": true
}An empty note string clears the note.
omnifocus_complete_task
Mark a task as complete or dropped. You can identify the task by either ID or name.
{
"taskId": "abc123",
"action": "complete"
}Or using task name:
{
"taskName": "Write documentation",
"action": "complete"
}Action can be "complete" (default) or "drop". If both taskId and taskName are provided, taskId takes priority.
Dropping a repeating task clears its repetition rule first, so the series really stops instead of rolling forward to the next occurrence.
omnifocus_batch_complete_task
Complete or drop up to 100 tasks by ID in one call.
{
"taskIds": ["id1", "id2", "id3"],
"action": "complete"
}omnifocus_add_tag_to_task
Add a tag to a task. You can identify the task by either ID or name.
{
"taskId": "abc123",
"tagName": "Urgent"
}Or using task name:
{
"taskName": "Write report",
"tagName": "Urgent"
}If both taskId and taskName are provided, taskId takes priority.
omnifocus_remove_tag_from_task
Remove a tag from a task. You can identify the task by either ID or name.
{
"taskId": "abc123",
"tagName": "Urgent"
}Or using task name:
{
"taskName": "Old task",
"tagName": "Done"
}If both taskId and taskName are provided, taskId takes priority.
omnifocus_batch_add_tag
Add one existing tag to up to 100 tasks by ID.
{
"taskIds": ["id1", "id2", "id3"],
"tagName": "Urgent"
}omnifocus_batch_remove_tag
Remove one tag from up to 100 tasks by ID.
{
"taskIds": ["id1", "id2", "id3"],
"tagName": "Urgent"
}omnifocus_update_project_note
Replace, clear, or append to a project's note. Identify by projectId or projectName (ID wins).
{
"projectName": "Website redesign",
"note": "Kickoff moved to March.",
"append": false
}omnifocus_search
Search across OmniFocus.
{
"query": "report",
"searchType": "all",
"limit": 20
}omnifocus_get_due_tasks
Get tasks due within a timeframe.
{
"daysAhead": 7,
"includeOverdue": true,
"limit": 50
}omnifocus_get_flagged_tasks
Get flagged tasks.
{
"includeCompleted": false,
"limit": 50
}omnifocus_get_planned_tasks
Get tasks planned within a timeframe.
{
"daysAhead": 7,
"includeOverdue": true,
"limit": 50
}omnifocus_get_projects_for_review
Get projects that need review based on their next review date. Perfect for GTD practitioners following the review workflow.
{
"daysAhead": 0,
"status": "active",
"limit": 50,
"includeTasks": true,
"taskLimit": 50
}Parameters:
daysAhead: How many days ahead to look (0 = overdue reviews only)status: Filter by project status ("active", "done", "dropped", "onHold", "all")limit: Maximum number of projects to return (1-500)includeTasks: Include each project's incomplete tasks in the result (default false) — this turns one review pass into a single call instead of one follow-up call per projecttaskLimit: Maximum tasks per project whenincludeTasksis true (1-200, default 50)
Each project also returns reviewInterval and lastReviewDate.
omnifocus_mark_project_reviewed
Mark a project as reviewed and update its next review date. You can identify the project by either ID or name.
{
"projectId": "abc123"
}Or using project name:
{
"projectName": "Weekly Review"
}With custom review interval:
{
"projectName": "Work Project",
"reviewIntervalDays": 14
}Parameters:
projectIdorprojectName: Identifies the project (ID takes priority)reviewIntervalDays(optional): Custom review interval in days. If not provided, uses the project's existing review interval.
omnifocus_batch_mark_reviewed
Mark multiple projects as reviewed in one efficient operation.
{
"projectIds": ["id1", "id2", "id3"]
}With custom review interval for all:
{
"projectIds": ["id1", "id2", "id3"],
"reviewIntervalDays": 7
}Parameters:
projectIds: Array of project IDs to mark as reviewed (1-100 projects)reviewIntervalDays(optional): Custom review interval to apply to all projects
Returns a summary with:
Count of successful reviews
Count of failures
Full project data for successful reviews
Error details for any failures
Date Formats
All dates use ISO 8601 format: YYYY-MM-DDTHH:mm:ss
Examples:
2024-12-31T17:00:00- December 31, 2024 at 5:00 PM2024-06-15T09:00:00- June 15, 2024 at 9:00 AM
Error Handling
The server provides clear error messages for common issues:
OmniFocus not running: Launch OmniFocus first
Permission denied: Enable automation permissions in System Preferences
Item not found: The specified ID doesn't exist
Invalid parameters: Check parameter format and values
Development
Build
npm run buildWatch mode
npm run devTests
npm test # All unit tests
npm run test:watch # Watch mode
npm run test:coverage # Coverage report (thresholds enforced: 80% lines, 75% branches)The integration tests in src/__tests__/integration.test.ts are skipped by default: they require a running OmniFocus and they modify your real database.
Test manually
After building, you can test with:
echo '{"jsonrpc":"2.0","method":"tools/list","id":1}' | node dist/index.jsApplying changes to a running server (important)
MCP clients fetch the tool list once when they connect and cache it for the
session. npm run build alone does not update a client that is already
connected — Node does not hot-reload, and the client will not re-fetch the
schema. After changing tools/schemas you must both restart the server and make
each client reconnect:
Rebuild:
npm run buildRestart the server process so it loads the new
dist/:LaunchAgent (HTTP transport):
launchctl kickstart -k gui/$(id -u)/com.sanderrobijns.omnifocus-mcpVerify it serves the new schema:
lsof -nP -iTCP:3000 -sTCP:LISTENshould show a freshly started PID.
Reconnect each client so it re-fetches
tools/list:Claude Code / Cowork: start a new session (a running session keeps its cached schema for its whole lifetime).
Claude Desktop: quit and reopen the app (or toggle the server off/on).
claude.ai / Claude iOS custom connector: re-sync the connector in Settings → Connectors (it caches the tool list at the connector level).
Until the client reconnects it keeps showing the old schema, even though the server already serves the new one.
License
MIT
Credits
Built using:
Available Tools
31 toolsomnifocus_add_tag_to_taskAdd Tag to TaskAIdempotent
Add a tag to a task in OmniFocus.
Use either the task ID or task name to identify the task.
Args:
taskId (string, optional): The task's ID. Takes priority if both taskId and taskName provided.
taskName (string, optional): The task's name to search for. At least one of taskId or taskName is required.
tagName (string): Name of the tag to add
Returns: The updated task object
Examples:
By ID: { taskId: "abc123", tagName: "Urgent" }
By name: { taskName: "Write report", tagName: "Urgent" }
| Name | Required | Description | Default |
|---|---|---|---|
| taskId | No | The task ID to add the tag to. Takes priority if both taskId and taskName are provided. | |
| tagName | Yes | The name of the tag to add | |
| taskName | No | The task name to search for. Used if taskId is not provided. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations provide idempotentHint and destructiveHint. The description adds that the tool returns the updated task object, but does not specify behavior if the tag already exists. No contradiction with annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with a clear structure: brief summary, args list, returns, and examples. Every sentence serves a purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite lacking an output schema, the description mentions the return value. Examples cover key use cases. For a simple modification tool, it is complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%. The description adds value by explaining the priority between taskId and taskName and providing examples, which goes beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Add a tag to a task in OmniFocus', specifying the verb and resource. It distinguishes from sibling tools like omnifocus_remove_tag_from_task and omnifocus_batch_add_tag.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains when to use taskId vs taskName and priority rules. However, it lacks explicit guidance on when not to use this tool (e.g., batch operations) or alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_batch_add_tagBatch Add Tag to TasksAIdempotent
Add the same tag to multiple tasks in one operation.
The tag must already exist. Tasks that already have the tag are left unchanged.
Args:
taskIds (array): Array of task IDs to tag (1-100)
tagName (string): Name of the tag to add
Returns: Summary with counts and the updated tasks, plus any per-task failures
Examples:
Tag several tasks: { taskIds: ["id1", "id2"], tagName: "Urgent" }
| Name | Required | Description | Default |
|---|---|---|---|
| tagName | Yes | Name of the tag to add (must already exist) | |
| taskIds | Yes | Array of task IDs to add the tag to (1-100 tasks) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations confirm idempotent and non-desctructive behavior; the description elaborates by stating unchanged tasks and summarizing the return value (counts, updated tasks, failures). Adds value beyond annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Well-structured with clear sections (Args, Returns, Examples) and a concise opening sentence. Slight redundancy with schema, but overall efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple batch tool with two parameters and annotations present, the description covers prerequisites, behavior, return value, and an example. No gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with both parameters described in the schema. The description repeats this and adds an example, but does not significantly enhance understanding beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it adds the same tag to multiple tasks in one operation, distinct from siblings like omnifocus_add_tag_to_task (single task) and omnifocus_batch_remove_tag (removes tags).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Specifies that the tag must already exist and that tasks already having the tag are left unchanged, providing context for idempotent use. However, it does not explicitly mention when not to use or name alternative tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_batch_complete_taskBatch Complete/Drop TasksAIdempotent
Complete or drop multiple tasks in one operation.
Args:
taskIds (array): Array of task IDs to complete or drop (1-100)
action (string): 'complete' (default) or 'drop'
Returns: Summary with counts and the updated tasks, plus any per-task failures
Examples:
Complete several: { taskIds: ["id1", "id2", "id3"] }
Drop several: { taskIds: ["id1", "id2"], action: "drop" }
| Name | Required | Description | Default |
|---|---|---|---|
| action | No | 'complete' (default) or 'drop' | complete |
| taskIds | Yes | Array of task IDs to complete or drop (1-100 tasks) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate non-readonly and non-destructive; description confirms it performs completes/drops. It adds batch size limits (1-100) and mentions per-task failures, which are useful behavioral details beyond annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with clear sections (Args, Returns, Examples). No fluff, every sentence is informative.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema, the description explains return values (summary, updated tasks, failures) and constraints (batch size). It is sufficiently complete for a batched mutation tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% so baseline is 3. Description provides examples and return info but adds little beyond schema for parameter meaning.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it 'Complete or drop multiple tasks in one operation.' This distinguishes it from single-task tools like omnifocus_complete_task and other batch tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides context for when to use this tool (batch operations) and includes examples. It does not explicitly exclude single-task scenarios, but the presence of a sibling tool for single completes implies differentiation.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_batch_mark_reviewedBatch Mark Projects ReviewedA
Mark multiple projects as reviewed in one operation.
Efficiently updates the review status for multiple projects at once.
Args:
projectIds (array): Array of project IDs to mark as reviewed (1-100 projects)
reviewIntervalDays (number, optional): Custom review interval in days (1-3650) to apply to all projects
Returns: Summary with count of successfully reviewed projects and any errors
Examples:
Review multiple projects: { projectIds: ["id1", "id2", "id3"] }
With custom interval: { projectIds: ["id1", "id2"], reviewIntervalDays: 14 }
| Name | Required | Description | Default |
|---|---|---|---|
| projectIds | Yes | Array of project IDs to mark as reviewed | |
| reviewIntervalDays | No | Optional custom review interval in days to apply to all projects |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Describes the update effect on review status and includes return value (summary with count and errors). Annotations indicate mutation (readOnlyHint=false) but no destructive hint, which aligns.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Very concise with clear sections (Args, Returns, Examples). First sentence is direct. No redundant or unnecessary information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Completeness is high given no output schema: return value described, parameter constraints spelled out, examples provided, and no missing context for a batch review operation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, and description adds value by restating constraints (1-100 projects, reviewIntervalDays optional range 1-3650) and providing examples. This clarifies usage beyond schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description explicitly states 'Mark multiple projects as reviewed', which is a specific verb+resource. It clearly distinguishes from the sibling omnifocus_mark_project_reviewed by indicating batch operation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
While not explicitly stating when not to use vs single mark, the name and description imply it's for batch operations, and the sibling tool handles single projects. Could be improved with direct alternative mention.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_batch_remove_tagBatch Remove Tag from TasksAIdempotent
Remove the same tag from multiple tasks in one operation.
Tasks that do not have the tag are left unchanged.
Args:
taskIds (array): Array of task IDs to untag (1-100)
tagName (string): Name of the tag to remove
Returns: Summary with counts and the updated tasks, plus any per-task failures
Examples:
Untag several tasks: { taskIds: ["id1", "id2"], tagName: "Waiting" }
| Name | Required | Description | Default |
|---|---|---|---|
| tagName | Yes | Name of the tag to remove | |
| taskIds | Yes | Array of task IDs to remove the tag from (1-100 tasks) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate idempotency and non-destructiveness, and the description adds useful context: tasks without the tag are left unchanged, and a summary with counts and failures is returned.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise, well-structured with a clear purpose, behavior note, argument listing, return type, and example, all front-loaded for quick comprehension.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the annotations, full schema, and no output schema, the description sufficiently covers behavior, inputs, output format, and provides an example, making it complete for a batch modification tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, and the description reiterates parameter details without adding new meaning beyond what the schema already provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool removes the same tag from multiple tasks in one operation, distinguishing it from siblings like single-task removal or batch addition.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description does not explicitly state when to use this tool versus alternatives, but the context from sibling names and the description's emphasis on batch operation imply its use case.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_complete_taskComplete or Drop TaskAIdempotent
Mark a task as complete or dropped in OmniFocus.
Use either the task ID from list/search results, or the task name for natural language interactions.
Args:
taskId (string, optional): The task's ID (primaryKey). Takes priority if both taskId and taskName provided.
taskName (string, optional): The task's name to search for. At least one of taskId or taskName is required.
action (string): 'complete' (default) or 'drop'
Note: Completing a recurring task advances it to the next occurrence (normal repeat behavior). Dropping a recurring task cancels the whole series - its repetition rule is removed first so it does not roll forward to a new active instance.
Returns: The updated task object
Examples:
Complete by ID: { taskId: "abc123" }
Complete by name: { taskName: "Write documentation" }
Drop by name: { taskName: "Old task", action: "drop" }
| Name | Required | Description | Default |
|---|---|---|---|
| action | No | Action to perform: 'complete' marks the task done, 'drop' marks it as dropped/cancelled | complete |
| taskId | No | The task ID (primaryKey) to update. Takes priority if both taskId and taskName are provided. | |
| taskName | No | The task name to search for. Used if taskId is not provided. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Adds critical behavior beyond annotations: detailed explanation of recurring task handling (complete advances, drop cancels series). No contradiction with annotations; idempotentHint true aligns with action semantics.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Well-structured with summary, args, note, returns, and examples. Every sentence is informative and non-redundant. No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Covers purpose, all parameters with usage guidance, behavioral nuances, return value, and examples. No output schema but return description is sufficient. Fully equips agent to invoke correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, but description adds value: explains priority rule, requirement of at least one, default for action, and provides clear examples that illustrate parameter usage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Clearly states 'Mark a task as complete or dropped in OmniFocus' with specific verb and resource. Distinguishes from siblings like delete_task and batch_complete_task by focusing on single task completion/dropping.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly recommends using taskId from list/search results or taskName for natural language. Provides priority rule when both provided and states required presence. Could improve by mentioning when to use batch alternatives, but context from sibling names helps.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_create_folderCreate FolderA
Create a new folder in OmniFocus.
Creates a folder at the top level or nested inside an existing folder.
Args:
name (string): Folder name (required)
parentFolderName (string, optional): Parent folder to nest inside (top level if omitted)
Returns: The created folder object with id, name, and other properties
Examples:
Top-level folder: { name: "Work" }
Nested folder: { name: "Q1", parentFolderName: "Work" }
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | Folder name (required) | |
| parentFolderName | No | Name of the parent folder to nest inside. If omitted, folder is created at the top level. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate destructiveHint=false and readOnlyHint=false, consistent with creating a folder (a non-destructive mutation). The description details the behavior (top-level vs nested) and indicates a return value, adding transparency beyond annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise and well-structured with a summary, parameter list, return value, and examples. Every sentence serves a purpose with no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the simplicity of the tool (2 parameters, no output schema, basic annotations), the description fully covers the purpose, parameters, return value, and usage scenarios. No gaps remain.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Since schema coverage is 100%, the baseline is 3. The description adds value with examples showing how to use name and parentFolderName, clarifying their roles beyond schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool creates a folder in OmniFocus, distinguishing it from sibling tools like update_folder or delete_folder. It specifies top-level or nested creation, leaving no ambiguity.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context for when to use the tool (creating a new folder) and includes examples for top-level and nested usage. It doesn't explicitly state when not to use, but the purpose is self-evident given the sibling tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_create_projectCreate ProjectA
Create a new project in OmniFocus.
Creates a project at the top level or inside a specific folder. Optional properties like due date, defer date, flags, and sequential ordering can be set.
Args:
name (string): Project name (required)
note (string): Optional note/description
folderName (string): Folder to place the project in (top level if omitted)
dueDate (string): Due date in ISO 8601 format
deferDate (string): Defer/start date in ISO 8601 format
flagged (boolean): Flag the project (default: false)
sequential (boolean): Tasks must be done in order (default: false = parallel)
status (string): "active", "on hold", "done", or "dropped" (default: "active")
Returns: The created project object with id, name, and other properties
Examples:
Simple project: { name: "Launch website" }
In a folder: { name: "Q1 Planning", folderName: "Work" }
With details: { name: "Write book", dueDate: "2024-12-31T17:00:00", sequential: true, flagged: true }
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | Project name (required) | |
| note | No | Optional note/description for the project | |
| status | No | Initial project status | active |
| dueDate | No | Due date in ISO 8601 format | |
| flagged | No | Whether to flag the project | |
| deferDate | No | Defer/start date in ISO 8601 format | |
| folderName | No | Name of the folder to place the project in. If omitted, project is created at the top level. | |
| sequential | No | If true, tasks must be completed in order (sequential project). Default is parallel. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate readOnlyHint=false and destructiveHint=false, which align with the creation behavior. The description adds value by explaining folder nesting and default status, though it doesn't detail side effects like overwriting or required permissions. No contradictions with annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with sections for Args, Returns, and Examples. Every sentence serves a purpose, with no redundancy or fluff. It is concise yet comprehensive.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 8 parameters and no output schema, the description thoroughly explains each parameter and provides example usage. The return value is summarized, sufficient for a creation tool. The context (annotations, schema coverage) is fully leveraged.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, but the description adds meaningful context beyond the schema, such as mentioning ISO 8601 date formats, default values for flagged/sequential/status, and providing examples. This aids the agent in correctly formatting parameters.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description explicitly states 'Create a new project in OmniFocus' and specifies top-level or folder placement, clearly distinguishing it from sibling tools like omnifocus_create_task, omnifocus_create_folder, and omnifocus_update_project.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description clearly indicates when to use this tool (creating a project) and outlines optional properties. However, it lacks explicit guidance on when not to use it compared to alternatives like omnifocus_update_project, but the context of sibling names and the action verb provide adequate direction.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_create_taskCreate TaskA
Create a new task in OmniFocus.
Creates a task in the inbox or a specific project. Tags, due dates, planned dates and other properties can be set. Supports repeating/recurring tasks.
Args:
name (string): Task name/title (required)
note (string): Optional note/description
projectName (string): Project to add to (inbox if not specified)
parentTaskId (string): ID of a parent task to create this as a subtask of (takes priority over projectName)
dueDate (string): Due date in ISO 8601 format - when the task must be completed
deferDate (string): Defer/start date in ISO 8601 format
plannedDate (string): Planned date in ISO 8601 format - when you intend to work on the task
flagged (boolean): Flag the task (default: false)
estimatedMinutes (number): Time estimate in minutes
tagNames (array): Tag names to apply
recurrence (object): Optional recurrence pattern with:
frequency: "daily", "weekly", "monthly", or "yearly"
interval: Number of periods between repetitions (default: 1)
daysOfWeek: Array of days for weekly recurrence (e.g., ["Monday", "Friday"])
dayOfMonth: Day number for monthly recurrence (1-31)
monthOfYear: Month number for yearly recurrence (1-12)
repeatFrom: "due-date" or "completion-date" (default: "due-date")
Returns: The created task object with id, name, and other properties
Examples:
Simple task: { name: "Buy groceries" }
Task with details: { name: "Review report", projectName: "Work", dueDate: "2024-12-31T17:00:00", flagged: true }
Daily recurring: { name: "Daily standup", dueDate: "2024-01-01T09:00:00", recurrence: { frequency: "daily", interval: 1 } }
Weekly on Mon/Wed/Fri: { name: "Workout", dueDate: "2024-01-01T07:00:00", recurrence: { frequency: "weekly", daysOfWeek: ["Monday", "Wednesday", "Friday"] } }
Monthly on 1st and 15th: { name: "Pay bills", dueDate: "2024-01-01T12:00:00", recurrence: { frequency: "monthly", interval: 1, dayOfMonth: 1 } }
Repeat from completion: { name: "Review quarterly", recurrence: { frequency: "monthly", interval: 3, repeatFrom: "completion-date" } }
Task with planning: { name: "Write article", plannedDate: "2024-12-15T09:00:00", dueDate: "2024-12-31T17:00:00" }
Task with tags: { name: "Call John", tagNames: ["Calls", "Urgent"] }
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | The task name/title | |
| note | No | Optional note/description for the task | |
| dueDate | No | Due date in ISO 8601 format (e.g., '2024-12-31T17:00:00') | |
| flagged | No | Whether to flag the task | |
| tagNames | No | Array of tag names to apply | |
| deferDate | No | Defer/start date in ISO 8601 format | |
| recurrence | No | Recurrence pattern for repeating tasks | |
| plannedDate | No | Planned date in ISO 8601 format - when you intend to work on the task | |
| projectName | No | Name of project to add task to (creates in inbox if not specified) | |
| parentTaskId | No | ID of parent task to create this as a subtask (makes this task a child of the parent) | |
| estimatedMinutes | No | Estimated time in minutes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate a write operation (readOnlyHint=false) and not destructive. The description adds behavioral context: creation details, support for recurrence, return of task object, and no contradictions. It clarifies actions beyond annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with headings, bulleted parameters, and examples. It is somewhat lengthy but each part adds value. Could be slightly more concise, but organization compensates.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 11 parameters, no output schema, the description covers all parameters comprehensively with examples. It explains the return value and common use cases. Missing only usage guidelines for more complete context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds examples, clarifies relationships (e.g., parentTaskId overrides projectName), and explains recurrence object in detail. This significantly aids parameter usage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it creates a task in OmniFocus, specifying inbox or project, and lists numerous parameters. It distinguishes from siblings like update_task, delete_task, and batch operations.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for creating tasks but does not explicitly state when to use or not use this tool versus alternatives like omnifocus_update_task or omnifocus_batch_complete_task. No exclusions are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_delete_folderDelete FolderADestructive
Permanently delete a folder from OmniFocus, including any projects and folders it contains. This cannot be undone via MCP.
Use either the folder ID from list/search results, or the folder name.
Args:
folderId (string, optional): The folder's ID. Takes priority if both folderId and folderName provided.
folderName (string, optional): The folder's name to search for. At least one of folderId or folderName is required.
Returns: Confirmation message with the deleted folder's name
Examples:
Delete by ID: { folderId: "abc123" }
Delete by name: { folderName: "Old folder" }
| Name | Required | Description | Default |
|---|---|---|---|
| folderId | No | The folder ID to delete. Takes priority if both folderId and folderName are provided. | |
| folderName | No | The folder name to search for. At least one of folderId or folderName is required. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond the destructiveHint annotation, the description warns that deletion is permanent, includes cascading deletion of contents, and cannot be undone via MCP. This adds significant behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is compact, logically structured (overview, args, returns, examples), and front-loaded with the key action. No unnecessary words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given full schema coverage and annotations, the description provides examples, parameter interaction rules, and return type. For a destructive delete operation, it covers all necessary context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds priority rules (folderId takes precedence), explains the mutual requirement, and provides concrete examples, enhancing the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb ('Permanently delete') and resource ('folder from OmniFocus'), and clearly states the scope ('including any projects and folders it contains'). This distinguishes it from sibling tools like omnifocus_create_folder and omnifocus_update_folder.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains how to provide the folder identifier (ID or name), that at least one is required, and that ID takes priority. It also notes permanence and irreversibility. While it doesn't explicitly contrast with omnifocus_delete_project or omnifocus_delete_task, the context is clear.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_delete_projectDelete ProjectADestructive
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" }
| Name | Required | Description | Default |
|---|---|---|---|
| projectId | No | The project ID to delete. Takes priority if both projectId and projectName are provided. | |
| projectName | No | The project name to search for. At least one of projectId or projectName is required. |
TDQS
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.
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.
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.
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.
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.
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.
omnifocus_delete_taskDelete TaskADestructive
Permanently delete a task from OmniFocus. This cannot be undone via MCP.
Use either the task ID from list/search results, or the task name.
Args:
taskId (string, optional): The task's ID. Takes priority if both taskId and taskName provided.
taskName (string, optional): The task's name to search for. At least one of taskId or taskName is required.
Returns: Confirmation message with the deleted task's name
Examples:
Delete by ID: { taskId: "abc123" }
Delete by name: { taskName: "Old draft" }
| Name | Required | Description | Default |
|---|---|---|---|
| taskId | No | The task ID to delete. Takes priority if both taskId and taskName are provided. | |
| taskName | No | The task name to search for. At least one of taskId or taskName is required. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description adds significant context beyond the destructiveHint annotation by stating it's permanent and cannot be undone via MCP. It also explains parameter priority, aligning with and enhancing annotation info.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the core action and permanence, followed by structured parameter details, return info, and examples. Every sentence adds value without redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a delete tool with two parameters and no output schema, the description fully explains usage, parameter selection, and return value. No critical information is missing given the tool's simplicity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
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 value by specifying priority and providing examples, making it clearer than schema alone.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it permanently deletes a task from OmniFocus and that it cannot be undone via MCP. This distinguishes it from sibling tools like complete_task or update_task, which are non-destructive.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides clear guidance on using taskId or taskName, with priority for taskId. However, it does not explicitly state when not to use it, such as when only completion is needed, though sibling tools imply alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_get_due_tasksGet Due TasksARead-onlyIdempotent
Get tasks that are due within a specified timeframe.
Args:
daysAhead (number): Days to look ahead, 0-365 (default: 7)
includeOverdue (boolean): Include overdue tasks (default: true)
limit (number): Max tasks, 1-500 (default: 50)
tags (array, optional): Filter to tasks matching these tag names (max 20)
tagMatchMode (string): How to match tags - 'all', 'any', or 'none' (default 'all'). Only applied when tags is provided.
Returns: Array of due tasks sorted by due date
Examples:
Due this week: {}
Due today: { daysAhead: 0 }
Due in 30 days: { daysAhead: 30 }
| Name | Required | Description | Default |
|---|---|---|---|
| tags | No | Filter to tasks matching these tag names (combined per tagMatchMode) | |
| limit | No | Maximum tasks to return | |
| daysAhead | No | Number of days ahead to look (0 = today only) | |
| tagMatchMode | No | How to match tags: 'all' = task has every listed tag, 'any' = at least one, 'none' = none of them. Only applied when tags is provided. | all |
| includeOverdue | No | Include overdue tasks |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate readOnlyHint=true, idempotentHint=true, destructiveHint=false. Description adds return format ('Array of due tasks sorted by due date'), which is useful but not significantly beyond annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Well-structured with clear Args, Returns, and Examples sections. Every sentence adds value; no redundancy. Concise but informative.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Covers input semantics well and mentions return format. However, without output schema, description of returned task structure is minimal; more detail on fields would improve completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, but description adds value with defaults, constraints (0-365 days, 1-500 tasks), and detailed tagMatchMode explanation. Examples further clarify parameter usage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states 'Get tasks that are due within a specified timeframe' with specific verb and resource. Distinguishes from sibling get-tools (e.g., get_flagged_tasks) by focusing on due dates.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Includes examples for common scenarios (due this week, today, 30 days) which imply usage contexts. However, no explicit guidance on when to use this tool versus alternatives like omnifocus_search or omnifocus_get_planned_tasks.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_get_flagged_tasksGet Flagged TasksARead-onlyIdempotent
Get all flagged tasks in OmniFocus.
Args:
includeCompleted (boolean): Include completed tasks (default: false)
limit (number): Max tasks, 1-500 (default: 50)
tags (array, optional): Filter to tasks matching these tag names (max 20)
tagMatchMode (string): How to match tags - 'all', 'any', or 'none' (default 'all'). Only applied when tags is provided.
Returns: Array of flagged tasks
Examples:
Active flagged: {}
All flagged: { includeCompleted: true }
| Name | Required | Description | Default |
|---|---|---|---|
| tags | No | Filter to tasks matching these tag names (combined per tagMatchMode) | |
| limit | No | Maximum tasks to return | |
| tagMatchMode | No | How to match tags: 'all' = task has every listed tag, 'any' = at least one, 'none' = none of them. Only applied when tags is provided. | all |
| includeCompleted | No | Include completed tasks |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description thoroughly explains behavior beyond annotations: default values, constraints (limit 1-500, tags max 20), conditional logic (tagMatchMode only applied when tags provided), and examples. Annotations confirm read-only, idempotent, non-destructive, so no contradictions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is very concise and well-structured: clear purpose, then Args, Returns, Examples. No fluff, every sentence adds value. Front-loaded with the main goal.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given low complexity, full parameter documentation, and no output schema, the description is complete. It covers what the tool returns, all parameters with defaults, and example invocations. No missing information for an agent to use it correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with descriptions, but the tool description adds value by organizing parameters in a clear list and providing examples that show typical usage patterns (e.g., empty object for active tasks, includeCompleted: true). This enhances understanding beyond schema alone.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Get all flagged tasks in OmniFocus' with a specific verb and resource. It distinguishes itself from sibling tools like omnifocus_get_due_tasks by focusing solely on flagged tasks.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage when flagged tasks are needed but does not provide explicit guidance on when to use this tool over alternatives. No when-not-to-use or comparison with sibling tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_get_perspective_tasksGet Perspective TasksARead-onlyIdempotent
Get tasks shown in a specific OmniFocus perspective.
Switches the front OmniFocus window to the named perspective, reads the tasks it displays, then restores the original perspective.
Args:
perspectiveName (string): Name of the perspective (use omnifocus_list_perspectives to find names)
limit (number): Maximum tasks to return, 1-500 (default: 50)
Returns: Array of task objects with: id, name, note, completed, flagged, dueDate, deferDate, projectName, tags, estimatedMinutes
Examples:
Get tasks from a perspective: { perspectiveName: "Next" }
With limit: { perspectiveName: "Forecast", limit: 10 }
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of tasks to return | |
| perspectiveName | Yes | The name of the perspective to get tasks from |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations (readOnlyHint, destructiveHint) already indicate safety. Description adds valuable behavioral context: switching the front window and restoring the original perspective, which is not captured by annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Description is front-loaded with purpose, followed by behavioral note, then clearly structured Args, Returns, and Examples. Every sentence earns its place without redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite no output schema, description lists all return fields. It explains the window-switching side effect and restoration. Tool is simple but all necessary info is provided.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, but description adds value by suggesting how to find perspective names and providing examples with default limit, going beyond schema definitions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states 'Get tasks shown in a specific OmniFocus perspective' and explains the switching/restoring behavior, distinguishing it from sibling tools like get_project_tasks or list_inbox.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides guidance to use omnifocus_list_perspectives for finding perspective names and includes examples. While it doesn't explicitly exclude alternatives, the context makes it clear when to use this tool.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_get_planned_tasksGet Planned TasksARead-onlyIdempotent
Get tasks that are planned within a specified timeframe.
Planned dates represent when you intend to work on a task, separate from the due date.
Args:
daysAhead (number): Days to look ahead, 0-365 (default: 7)
includeOverdue (boolean): Include overdue planned tasks (default: true)
limit (number): Max tasks, 1-500 (default: 50)
tags (array, optional): Filter to tasks matching these tag names (max 20)
tagMatchMode (string): How to match tags - 'all', 'any', or 'none' (default 'all'). Only applied when tags is provided.
Returns: Array of planned tasks sorted by planned date
Examples:
Planned this week: {}
Planned today: { daysAhead: 0 }
Planned in 30 days: { daysAhead: 30 }
| Name | Required | Description | Default |
|---|---|---|---|
| tags | No | Filter to tasks matching these tag names (combined per tagMatchMode) | |
| limit | No | Maximum tasks to return | |
| daysAhead | No | Number of days ahead to look (0 = today only) | |
| tagMatchMode | No | How to match tags: 'all' = task has every listed tag, 'any' = at least one, 'none' = none of them. Only applied when tags is provided. | all |
| includeOverdue | No | Include overdue planned tasks |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate readOnlyHint=true, idempotentHint=true, destructiveHint=false, which are consistent. The description adds important behavior: returns array sorted by planned date, default parameter values, and tag matching logic. No contradictions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured: purpose paragraph, parameter list, return type, and examples. Every sentence is informative and front-loaded with the core purpose. No unnecessary words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema, the description covers the tool's purpose, parameters, and return type adequately. It could specify the structure of returned task objects, but the examples and sort order are sufficient for an agent to use correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with parameter descriptions. The description adds meaning beyond schema by explaining the concept of planned dates and providing examples. It does not repeat schema details but enriches understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Get tasks that are planned within a specified timeframe' with a specific verb and resource, and distinguishes from sibling tools like omnifocus_get_due_tasks by emphasizing the 'planned dates' concept separate from due dates.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains when to use this tool (for planned tasks) but does not explicitly state when not to use it or name alternatives. However, the parameter descriptions and examples provide clear context for usage.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_get_projects_for_reviewGet Projects for ReviewARead-onlyIdempotent
Get projects that need review based on their next review date.
Returns projects whose next review date is on or before today (or within specified days ahead).
Args:
daysAhead (number): Days to look ahead, 0-365 (default: 0 = overdue only)
status (string): Filter by status - 'all', 'active', 'done', 'dropped', 'onHold' (default: 'active')
limit (number): Maximum projects to return, 1-500 (default: 50)
Returns: Array of projects needing review sorted by next review date
Examples:
Overdue reviews: {}
Reviews due within 7 days: { daysAhead: 7 }
All active projects due for review: { status: "active", daysAhead: 30 }
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum projects to return | |
| status | No | Filter by project status | active |
| daysAhead | No | Number of days ahead to look (0 = overdue reviews only) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate read-only, idempotent, non-destructive. The description adds sorting by next review date and filtering details, but does not disclose return format or pagination. No contradictions with annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is efficiently structured: purpose sentence, then a bullet-like listing of args with defaults and constraints, examples, and return type. No wasted words, well-organized.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
No output schema exists, so description should explain return structure. It only mentions 'Array of projects needing review sorted by next review date' without field details. Contextually adequate for a simple filtered list but could specify project fields.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% (all parameters described). The description repeats schema info and adds examples, clarifying 'daysAhead' as overdue vs. due. However, it provides minimal extra meaning beyond the existing schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it gets projects needing review based on next review date, with specific criteria (overdue or within days ahead). It distinguishes from siblings like omnifocus_list_projects by focusing on review status.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implicitly suggests use for review filtering, with examples showing different scenarios. However, it does not explicitly state when alternatives like omnifocus_list_projects or omnifocus_get_project_tasks are better, missing explicit exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_get_project_tasksGet Project TasksARead-onlyIdempotent
Get all tasks belonging to a specific project in OmniFocus.
Returns the tasks within a project, including subtasks. Use omnifocus_list_projects to find project IDs first.
Args:
projectId (string): The ID of the project
includeCompleted (boolean): Include completed tasks (default: false)
limit (number): Maximum tasks to return, 1-500 (default: 100)
Returns: Array of task objects with: id, name, note, completed, flagged, dueDate, deferDate, estimatedMinutes, tags, parentTaskId, parentTaskName, hasChildren, childTaskCount
Examples:
Get tasks for a project: { projectId: "abc123" }
Include completed: { projectId: "abc123", includeCompleted: true }
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of tasks to return | |
| projectId | Yes | The ID of the project to get tasks for | |
| includeCompleted | No | Include completed tasks |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true, so the safety profile is clear. The description adds that it returns tasks including subtasks and specifies the return format, providing behavior beyond annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with a purpose sentence, return description, usage prerequisite, args and returns in a clean list, and examples. Every sentence adds value and it's concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite no output schema, the description fully details the return format (fields) and provides examples. It covers all necessary context for using the tool correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with all parameters described. The description reiterates the parameters and adds example usage, but doesn't add significant new meaning beyond the schema. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Get all tasks belonging to a specific project in OmniFocus' with a specific verb and resource. It distinguishes from sibling tools like omnifocus_list_projects by mentioning that tool for finding project IDs first.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly guides to use omnifocus_list_projects first to get project IDs. Though it doesn't list when not to use or alternatives, the context is clear given sibling tools have distinct purposes.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_list_foldersList FoldersARead-onlyIdempotent
List folders in OmniFocus.
Folders are used to organize projects hierarchically.
Args:
status (string): Filter by status - 'all', 'active', 'dropped' (default: 'active')
limit (number): Maximum folders to return, 1-200 (default: 50)
Returns: Array of folder objects with: id, name, status, projectCount, folderCount, parentName
Examples:
List active folders: {}
List all folders: { status: "all" }
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of folders to return | |
| status | No | Filter by folder status | active |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint true and destructiveHint false. The description adds value by detailing return fields (id, name, status, projectCount, folderCount, parentName) and examples, beyond what annotations provide.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with three short paragraphs (overview, args, returns) plus examples. Every sentence is informative and well-structured, front-loading the core purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite lacking an output schema, the description fully explains the return array structure with field names. It covers all necessary information for a list tool: purpose, arguments with defaults, and return format.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Input schema has 100% coverage with descriptions for both parameters. The description repeats this info and adds examples, but does not significantly extend meaning beyond the schema. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'List folders in OmniFocus' and explains that folders organize projects hierarchically. It distinguishes itself from sibling list tools (e.g., omnifocus_list_projects) by focusing specifically on folders.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides examples and defaults but does not explicitly state when to use this tool versus alternatives like omnifocus_list_projects or omnifocus_search. Usage context is implied but lacks explicit when-not-to-use guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_list_inboxList Inbox TasksARead-onlyIdempotent
List tasks in the OmniFocus inbox.
Returns tasks that haven't been assigned to a project yet. These are typically newly captured items awaiting processing.
Args:
includeCompleted (boolean): Include completed tasks (default: false)
limit (number): Maximum tasks to return, 1-500 (default: 50)
tags (array, optional): Filter to tasks matching these tag names (max 20)
tagMatchMode (string): How to match tags - 'all' (every tag), 'any' (at least one), 'none' (none of them). Default 'all'. Only applied when tags is provided.
Returns: Array of task objects with: id, name, note, completed, flagged, dueDate, deferDate, estimatedMinutes, tags
Examples:
List all inbox items: {}
Include completed: { includeCompleted: true }
Only untagged-by-Work items: { tags: ["Work"], tagMatchMode: "none" }
| Name | Required | Description | Default |
|---|---|---|---|
| tags | No | Filter to tasks matching these tag names (combined per tagMatchMode) | |
| limit | No | Maximum number of tasks to return | |
| tagMatchMode | No | How to match tags: 'all' = task has every listed tag, 'any' = at least one, 'none' = none of them. Only applied when tags is provided. | all |
| includeCompleted | No | Include completed tasks in results |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate readOnlyHint and idempotentHint. The description adds behavioral context (returns unassigned tasks) and explains tagMatchMode mechanics, which goes beyond what annotations provide.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with clear sections for purpose, arguments, returns, and examples. Every sentence adds value with no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite no output schema, the description lists return fields and provides relevant examples. It fully covers what the tool does, its parameters, and usage context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so a baseline of 3 applies. The description adds value through examples and clarifications (e.g., tagMatchMode behavior), raising the score to 4.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'List tasks in the OmniFocus inbox' and explains these are tasks not assigned to a project, distinguishing it from other task-listing tools like omnifocus_get_project_tasks.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for viewing newly captured items awaiting processing. While it does not explicitly exclude scenarios, the context is clear enough to differentiate from project-specific lists.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_list_perspectivesList PerspectivesARead-onlyIdempotent
List perspectives in OmniFocus.
Perspectives are saved views/filters that show specific subsets of tasks. Includes both built-in and custom perspectives.
Args:
limit (number): Maximum perspectives to return, 1-200 (default: 50)
Returns: Array of perspective objects with: id, name
Examples:
List perspectives: {}
Limit results: { limit: 10 }
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of perspectives to return |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already provide readOnlyHint, destructiveHint, idempotentHint. Description adds return format (array of perspective objects with id, name) but no additional behavioral traits like pagination or performance. Adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Well-structured with Args and Returns sections, concise with no extraneous text. Slightly verbose in the opening line but overall efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given low complexity (one optional parameter, no output schema, rich annotations), description is sufficiently complete. Explains what perspectives are and return shape. No major gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with detailed description of limit parameter. Description restates schema info but does not add new meaning beyond formatting or examples. Baseline 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Clearly states the verb 'list' and resource 'perspectives', and distinguishes from sibling tools like omnifocus_list_folders and omnifocus_list_projects by specifying 'perspectives' as saved views/filters.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use this tool versus alternatives (e.g., omnifocus_get_perspective_tasks). Only minimal examples of usage but no context on selection criteria or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_list_projectsList ProjectsARead-onlyIdempotent
List projects in OmniFocus.
Returns projects with their status, dates, and folder information.
Args:
status (string): Filter by status - 'all', 'active', 'done', 'dropped', 'onHold' (default: 'active')
folderName (string): Optional folder name filter (partial match)
limit (number): Maximum projects to return, 1-500 (default: 50)
Returns: Array of project objects with: id, name, note, status, completed, flagged, dueDate, deferDate, folderName, taskCount, sequential
Examples:
List active projects: {}
List all projects: { status: "all" }
Projects in a folder: { folderName: "Work" }
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of projects to return | |
| status | No | Filter by project status | active |
| folderName | No | Filter by folder name (case-insensitive partial match) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds behavioral details beyond annotations, such as default status='active', limit default, folderName partial match, and return fields. No contradictions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with separate sections for purpose, arguments, returns, and examples. It is concise yet comprehensive, with no wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite lacking an output schema, the description explicitly lists return fields and provides examples covering typical use cases. It fully equips an agent to understand the tool's behavior.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, but the description adds meaningful context: explains status enum values, folderName as partial match, and limit range. Examples further clarify usage. This adds value beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'List projects in OmniFocus' and specifies the returned fields (status, dates, folder info). It distinguishes itself from sibling tools like omnifocus_list_folders or omnifocus_list_inbox by focusing on projects.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains the tool's purpose and provides examples, but does not explicitly state when not to use it or compare it to alternatives like omnifocus_get_project_tasks. However, the context is clear enough for an agent to decide based on the need for listing projects.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_list_tagsList TagsARead-onlyIdempotent
List tags in OmniFocus.
Tags (formerly contexts) are used to categorize tasks by context, person, tool, etc.
Args:
status (string): Filter by status - 'all', 'active', 'onHold', 'dropped' (default: 'active')
limit (number): Maximum tags to return, 1-200 (default: 50)
Returns: Array of tag objects with: id, name, status, taskCount, allowsNextAction, parentName
Examples:
List active tags: {}
List all tags: { status: "all" }
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of tags to return | |
| status | No | Filter by tag status | active |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations declare readOnlyHint and idempotentHint, which the description reinforces by describing a non-destructive list operation. The description adds the return format (fields like id, name, status, etc.) and example invocations, providing behavioral context beyond the annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Description is very concise with clear sections (Args, Returns, Examples). No extraneous text. Every sentence adds value. Well-structured and front-loaded.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple read-only list tool with two parameters and no output schema, the description is complete. It specifies input parameters with defaults and return fields. It could mention ordering or pagination, but not essential given tool simplicity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so baseline is 3. The description repeats parameter details (status enum values, limit range) and provides default values, but adds minimal extra meaning beyond the schema. Examples illustrate usage but do not significantly deepen parameter understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states 'List tags in OmniFocus' with explanation that tags are used to categorize tasks. This is a specific verb+resource combination that distinguishes from sibling tools like omnifocus_add_tag_to_task or omnifocus_create_task.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use this tool versus alternatives. The purpose is obvious for a list operation, but the description lacks comparison to other tag-related tools or conditions for selecting this tool.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_mark_project_reviewedMark Project ReviewedA
Mark a project as reviewed and update its next review date.
Use either the project ID or project name to identify the project. The next review date will be set based on the project's review interval or a custom interval if provided.
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.
reviewIntervalDays (number, optional): Custom review interval in days (1-3650). If not provided, uses the project's current review interval.
Returns: The updated project object
Examples:
By ID: { projectId: "abc123" }
By name: { projectName: "Work Project" }
With custom interval: { projectName: "Weekly Project", reviewIntervalDays: 7 }
| Name | Required | Description | Default |
|---|---|---|---|
| projectId | No | The project ID to mark as reviewed. Takes priority if both projectId and projectName are provided. | |
| projectName | No | The project name to search for. Used if projectId is not provided. | |
| reviewIntervalDays | No | Number of days until next review (optional - uses project's current interval if not specified) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate mutability (readOnlyHint: false). The description adds that the next review date is set based on the project's review interval or a custom interval. No contradictions found.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise, well-structured with Args and Examples sections. Every sentence adds value without redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite no output schema, the description mentions the return value (updated project object). All parameters are well-documented, and examples cover common use cases. Sufficient for an agent to use correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 100% schema coverage, the baseline is 3. The description adds value by clarifying the priority of projectId over projectName and explaining reviewIntervalDays defaults. Examples further illustrate usage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Mark a project as reviewed and update its next review date', with a specific verb and resource. It distinguishes from sibling tools like omnifocus_batch_mark_reviewed by being single-project.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains when to use projectId vs projectName and provides examples. It implicitly says to use this for single projects vs batch. However, it doesn't explicitly mention when not to use or list alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_remove_tag_from_taskRemove Tag from TaskAIdempotent
Remove a tag from a task in OmniFocus.
Use either the task ID or task name to identify the task.
Args:
taskId (string, optional): The task's ID. Takes priority if both taskId and taskName provided.
taskName (string, optional): The task's name to search for. At least one of taskId or taskName is required.
tagName (string): Name of the tag to remove
Returns: The updated task object
Examples:
By ID: { taskId: "abc123", tagName: "Urgent" }
By name: { taskName: "Old task", tagName: "Done" }
| Name | Required | Description | Default |
|---|---|---|---|
| taskId | No | The task ID to remove the tag from. Takes priority if both taskId and taskName are provided. | |
| tagName | Yes | The name of the tag to remove | |
| taskName | No | The task name to search for. Used if taskId is not provided. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate idempotentHint=true, destructiveHint=false. Description confirms removal and returns updated object, adding context about priority of identifiers. No contradiction.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Concise description with structured sections (Args, Returns, Examples). No wasted words. Front-loaded with purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
No output schema, but description specifies return type ('updated task object'). For a simple mutation with 3 params, this covers essential context. Lacks error handling details.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage 100%, but description adds meaning: priority rule (taskId over taskName), optionality, and example usages. This exceeds the schema's descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Clearly states 'Remove a tag from a task in OmniFocus.' Distinguishes from siblings like omnifocus_add_tag_to_task and omnifocus_batch_remove_tag by focusing on a single task.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides clear guidance on using taskId vs taskName with priority rules and at-least-one requirement. Gives examples. Could explicitly note that batch removal is done via a sibling tool.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_searchSearch OmniFocusARead-onlyIdempotent
Search for tasks, projects, folders, or tags in OmniFocus.
Uses OmniFocus's smart matching to find items.
Args:
query (string): Search query
searchType (string): 'tasks', 'projects', 'folders', 'tags', or 'all' (default: 'all')
limit (number): Max results per type, 1-100 (default: 20)
Returns: Matching items organized by type
Examples:
Search all: { query: "report" }
Search projects only: { query: "work", searchType: "projects" }
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum results per type | |
| query | Yes | Search query string | |
| searchType | No | Type of items to search | all |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already provide readOnlyHint, idempotentHint, and destructiveHint, which the description does not contradict. It adds that the tool uses 'smart matching,' providing extra behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Well-structured with an intro, Args section, Returns, and Examples. Concise and to the point without unnecessary words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description covers key aspects: what it searches, parameters, return format. With no output schema, the description compensates adequately. Could explicitly state read-only nature, but annotations cover that.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the description adds value by providing defaults, examples, and explaining return format. This goes beyond what the schema alone provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Clearly states the action (search) and the resources (tasks, projects, folders, tags). Distinguishes from sibling tools that perform other operations like add, delete, list, etc.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Includes examples and parameter descriptions that clarify usage. While it doesn't explicitly state when not to use, the purpose is clear and the siblings are distinct operations.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_update_folderUpdate FolderA
Rename an existing folder in OmniFocus.
Args:
folderId (string, optional): The folder's ID. Takes priority if both folderId and folderName provided.
folderName (string, optional): The folder's name to search for. At least one of folderId or folderName is required.
name (string): New folder name
Note: moving a folder into another folder is not supported by OmniFocus's JXA layer (the move operation is rejected). Recreate the folder in the target location if you need to move it.
Returns: The updated folder object
Examples:
Rename by ID: { folderId: "abc123", name: "Archive" }
Rename by name: { folderName: "Q1", name: "Q1 2027" }
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | New folder name | |
| folderId | No | The folder ID to update. Takes priority if both folderId and folderName are provided. | |
| folderName | No | The folder name to search for. At least one of folderId or folderName is required. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate a mutation tool (readOnlyHint=false). The description confirms the rename behavior and adds transparency about the unsupported move operation. No contradiction with annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with labeled sections (Args, Note, Returns, Examples), concise sentences, and no redundant information. Every sentence adds value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple rename tool, the description fully covers the action, parameter usage, unsupported operations, return value, and examples. No missing context given the lack of output schema.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, but the description enhances understanding by clarifying parameter priority (folderId > folderName) and providing examples that demonstrate usage patterns.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Rename an existing folder in OmniFocus,' specifying the verb 'rename' and the resource 'folder.' It effectively differentiates from sibling tools like 'create_folder' and 'delete_folder.'
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains the order of priority between 'folderId' and 'folderName,' and notes the unsupported move operation with a suggested workaround. It lacks explicit when-not-to-use guidance, but the context is clear.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_update_projectUpdate ProjectA
Update properties of an existing project in OmniFocus.
Only the fields you provide are changed. Use null to clear a date or note field.
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.
name (string, optional): New project name
note (string | null, optional): New note text. Pass null to clear.
status (string, optional): "active", "on hold", "done", or "dropped". Setting "done" completes the project and "dropped" drops it (setting "active" reactivates a completed/dropped project).
flagged (boolean, optional): Set flagged state
dueDate (string | null, optional): New due date in ISO 8601 format. Pass null to clear.
deferDate (string | null, optional): New defer date in ISO 8601 format. Pass null to clear.
sequential (boolean, optional): Tasks must be done in order (true) or parallel (false)
reviewIntervalDays (number, optional): Review interval in days (1-3650)
Note: moving a project between folders is not supported by OmniFocus's JXA layer (the move operation returns "Replacement not supported"). Recreate the project in the target folder if you need to move it.
Returns: The updated project object
Examples:
Rename: { projectId: "abc123", name: "New name" }
Put on hold: { projectId: "abc123", status: "on hold" }
Complete the project: { projectId: "abc123", status: "done" }
Drop the project: { projectId: "abc123", status: "dropped" }
Set review interval: { projectId: "abc123", reviewIntervalDays: 14 }
Clear due date: { projectId: "abc123", dueDate: null }
| Name | Required | Description | Default |
|---|---|---|---|
| name | No | New project name | |
| note | No | New note text. Pass null to clear the note. | |
| status | No | New project status | |
| dueDate | No | New due date in ISO 8601 format. Pass null to clear. | |
| flagged | No | Set flagged state | |
| deferDate | No | New defer/start date in ISO 8601 format. Pass null to clear. | |
| projectId | No | The project ID to update. Takes priority if both projectId and projectName are provided. | |
| sequential | No | If true, tasks must be completed in order (sequential). If false, parallel. | |
| projectName | No | The project name to search for. At least one of projectId or projectName is required. | |
| reviewIntervalDays | No | Review interval in days. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses important behaviors: only provided fields are changed, null clears fields, status transitions (completing with 'done' vs 'dropped', reactivation). It also transparently notes the unsupported move operation with an explanation. This goes beyond the basic annotations (which only indicate non-readOnly).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is somewhat lengthy but well-structured: purpose first, then parameter details, then a note on limitation, then returns, then examples. Every sentence adds value. A minor deduction for verbosity; could be more terse for agent consumption, but still effective.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 10 parameters, no output schema, and no nested objects, the description covers all parameters with examples and notes limitations. It mentions return value ('The updated project object') but doesn't detail its structure. However, without an output schema, this is adequate. The description is complete enough for an agent to use correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds value by explaining usage semantics: null clears fields, status effects (e.g., setting 'done' completes), and the priority between projectId/projectName. Examples further clarify parameter usage. This raises the score above baseline.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Update properties of an existing project in OmniFocus,' specifies the specific fields that can be updated, and distinguishes itself from siblings like omnifocus_update_project_note and omnifocus_create_project. It also notes a limitation (moving folders not supported) which clarifies scope.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains when to use this tool: for updating any project property. It provides constraints like the priority of projectId over projectName and the requirement of at least one identifier. It also warns about the unsupported move operation. However, it does not explicitly guide the agent on when to choose this over other update tools like omnifocus_update_project_note, though the sibling names imply the distinction.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_update_project_noteUpdate Project NoteAIdempotent
Update the note/description on an existing project in OmniFocus.
Use either the project ID or project name to identify the project.
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.
note (string): The new note content. Use empty string to clear the note.
append (boolean): If true, append to existing note instead of replacing (default: false)
Returns: The updated project object
Examples:
Set note by ID: { projectId: "abc123", note: "Q1 deliverables" }
Set note by name: { projectName: "Work Project", note: "Started Jan 2024" }
Clear note: { projectId: "abc123", note: "" }
Append to note: { projectId: "abc123", note: "\nNew update", append: true }
| Name | Required | Description | Default |
|---|---|---|---|
| note | Yes | The new note content for the project. Use empty string to clear the note. | |
| append | No | If true, append to existing note instead of replacing it | |
| projectId | No | The project ID to update. Takes priority if both projectId and projectName are provided. | |
| projectName | No | The project name to search for. Used if projectId is not provided. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate idempotent, non-destructive write; the description adds behavioral details: empty string clears the note, append flag behavior, and priority of projectId over projectName. No contradiction with annotations, and it goes beyond structured fields to provide useful nuance.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with a clear header, args list, returns note, and examples. It is concise yet complete, front-loading the main purpose and providing necessary details without excess verbiage.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 4 parameters (1 required) and no output schema, the description covers all input parameters with examples, explains the return type (updated project object), and handles edge cases like clearing and appending. No gaps observed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with descriptions for all 4 parameters. The description adds value by explaining priority logic (projectId takes precedence), requiredness (at least one of projectId/projectName), and the effect of empty string on note. This goes beyond the schema's basic descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Update the note/description on an existing project in OmniFocus.' The verb 'update' and resource 'project note' are specific and unambiguous, distinguishing it from sibling tools like omnifocus_update_project (which updates other fields) and omnifocus_update_task_note (for task notes).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear scenarios for use (set by ID, by name, clear, append) through examples and parameter explanations. It does not explicitly state when not to use it or compare to alternatives, but the context is sufficient for typical use cases.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_update_taskUpdate TaskA
Update properties of an existing task in OmniFocus.
Only the fields you provide are changed. Use null to clear a date or note field.
Args:
taskId (string, optional): The task's ID. Takes priority if both taskId and taskName provided.
taskName (string, optional): The task's name to search for. At least one of taskId or taskName is required.
name (string, optional): New task name
note (string | null, optional): New note text. Pass null to clear.
dueDate (string | null, optional): New due date in ISO 8601 format. Pass null to clear.
deferDate (string | null, optional): New defer date in ISO 8601 format. Pass null to clear.
plannedDate (string | null, optional): New planned date in ISO 8601 format. Pass null to clear.
flagged (boolean, optional): Set flagged state
estimatedMinutes (number, optional): Time estimate in minutes. Pass 0 to clear.
projectId (string, optional): ID of the project to move the task to.
projectName (string, optional): Name of the project to move the task to. Ignored if projectId is provided.
recurrence (object | null, optional): Repetition pattern to make the task recurring (same shape as create_task: frequency, interval, daysOfWeek, dayOfMonth, monthOfYear, repeatFrom). Pass null to remove recurrence.
clearRecurrence (boolean, optional): Set true to remove the task's repetition rule (turn off recurring). Equivalent to recurrence: null.
Returns: The updated task object
Examples:
Rename: { taskId: "abc123", name: "New name" }
Set due date: { taskId: "abc123", dueDate: "2024-12-31T17:00:00" }
Clear due date: { taskId: "abc123", dueDate: null }
Make it recurring weekly: { taskId: "abc123", recurrence: { frequency: "weekly", daysOfWeek: ["Monday"] } }
Turn off recurring: { taskId: "abc123", clearRecurrence: true }
Flag and estimate: { taskId: "abc123", flagged: true, estimatedMinutes: 30 }
| Name | Required | Description | Default |
|---|---|---|---|
| name | No | New task name | |
| note | No | New note text. Pass null to clear the note. | |
| taskId | No | The task ID to update. Takes priority if both taskId and taskName are provided. | |
| dueDate | No | New due date in ISO 8601 format. Pass null to clear. | |
| flagged | No | Set flagged state | |
| taskName | No | The task name to search for. At least one of taskId or taskName is required. | |
| deferDate | No | New defer/start date in ISO 8601 format. Pass null to clear. | |
| projectId | No | ID of the project to move the task to. | |
| recurrence | No | Set a repetition pattern to make the task recurring (same shape as create_task). Pass null to remove recurrence. | |
| plannedDate | No | New planned date in ISO 8601 format. Pass null to clear. | |
| projectName | No | Name of the project to move the task to. Ignored if projectId is provided. | |
| clearRecurrence | No | Set true to remove the task's repetition rule (turn off recurring). Equivalent to recurrence: null. | |
| estimatedMinutes | No | Estimated time in minutes. Pass 0 to clear. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description adds context beyond annotations by detailing partial update behavior, null clearing, taskId/taskName priority, and return value. Annotations are consistent (write operation, not destructive, not idempotent).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is long but well-structured with Args, Returns, and Examples sections. It is front-loaded with purpose. Minor redundancy (e.g., clearRecurrence explanation could be shorter) but overall efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 13 parameters and no output schema, the description covers all parameters, return value, special behaviors (null clearing, priority), and multiple examples. It is complete for a complex update tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, and the description adds significant meaning: structured breakdown of all 13 parameters, type info, null handling, and examples. It references 'same shape as create_task' for recurrence, adding clarity.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Update properties of an existing task in OmniFocus' with a specific verb and resource. It distinguishes from siblings like create_task, complete_task, and delete_task by focusing on updating existing tasks.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains partial updates ('Only the fields you provide are changed'), how to clear fields with null, and priority between taskId and taskName. It provides examples but does not explicitly contrast with alternative tools like omnifocus_update_task_note or batch tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
omnifocus_update_task_noteUpdate Task NoteAIdempotent
Update the note/description on an existing task in OmniFocus.
Use either the task ID or task name to identify the task.
Args:
taskId (string, optional): The task's ID. Takes priority if both taskId and taskName provided.
taskName (string, optional): The task's name to search for. At least one of taskId or taskName is required.
note (string): The new note content. Use empty string to clear the note.
append (boolean): If true, append to existing note instead of replacing (default: false)
Returns: The updated task object
Examples:
Set note by ID: { taskId: "abc123", note: "Remember to include charts" }
Set note by name: { taskName: "Write report", note: "Draft due Friday" }
Clear note: { taskId: "abc123", note: "" }
Append to note: { taskId: "abc123", note: "\nAdditional info here", append: true }
| Name | Required | Description | Default |
|---|---|---|---|
| note | Yes | The new note content for the task. Use empty string to clear the note. | |
| append | No | If true, append to existing note instead of replacing it | |
| taskId | No | The task ID to update. Takes priority if both taskId and taskName are provided. | |
| taskName | No | The task name to search for. Used if taskId is not provided. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond annotations (idempotentHint=true, destructiveHint=false), description clarifies the append behavior, clearing note with empty string, and return value. No contradictions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Description is concise with clear sections (Args, Returns, Examples). Every sentence adds value; no fluff.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite no output schema, description specifies the return value. Covers all parameters, edge cases (clear, append), and examples. Highly complete for a simple tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%. The description adds meaning: priority between taskId/taskName, examples for each usage, and append semantics. Exceeds baseline.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'update' and resource 'note/description' on a task, and is distinct from sibling tools like omnifocus_update_task (which updates other fields) and omnifocus_update_project_note.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains when to use taskId vs taskName with priority rules, and shows examples. It doesn't explicitly exclude alternatives but the purpose is clear for note updates.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
31 tool updates
v1.0.0- First observed
omnifocus_add_tag_to_task - First observed
omnifocus_batch_add_tag - First observed
omnifocus_batch_complete_task - First observed
omnifocus_batch_mark_reviewed - First observed
omnifocus_batch_remove_tag - First observed
omnifocus_complete_task - First observed
omnifocus_create_folder - First observed
omnifocus_create_project - First observed
omnifocus_create_task - First observed
omnifocus_delete_folder - First observed
omnifocus_delete_project - First observed
omnifocus_delete_task - First observed
omnifocus_get_due_tasks - First observed
omnifocus_get_flagged_tasks - First observed
omnifocus_get_perspective_tasks - First observed
omnifocus_get_planned_tasks - First observed
omnifocus_get_project_tasks - First observed
omnifocus_get_projects_for_review - First observed
omnifocus_list_folders - First observed
omnifocus_list_inbox - First observed
omnifocus_list_perspectives - First observed
omnifocus_list_projects - First observed
omnifocus_list_tags - First observed
omnifocus_mark_project_reviewed - First observed
omnifocus_remove_tag_from_task - First observed
omnifocus_search - First observed
omnifocus_update_folder - First observed
omnifocus_update_project - First observed
omnifocus_update_project_note - First observed
omnifocus_update_task - First observed
omnifocus_update_task_note
TDQS
Scored across 31 tools
Most tools target distinct resource-action pairs, but there is overlap between general update tools and dedicated note update tools (e.g., omnifocus_update_task vs omnifocus_update_task_note), which could confuse an agent deciding which to use.
All tools follow a consistent omnifocus_verb_noun pattern with clear verbs (list_, get_, create_, update_, delete_, etc.) and consistent prepositions (add_tag_to_task, remove_tag_from_task), making the naming predictable and easy to navigate.
31 tools is on the higher side, but the number is justified by the comprehensive feature set of OmniFocus (tasks, projects, folders, tags, perspectives, reviews, batch operations). A small reduction by merging note update tools would improve conciseness.
The surface covers most CRUD operations for tasks, projects, and folders, including tagging and review. However, missing tag creation and a general 'list all tasks' tool are notable gaps that may cause agent failures.
Maintenance
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- AlicenseAqualityAmaintenanceA Model Context Protocol (MCP) server that integrates with OmniFocus to enable Claude (or other MCP-compatible AI assistants) to interact with your tasks and projects.7253240MIT
- AlicenseAqualityFmaintenanceAn MCP server that provides full read/write access to OmniFocus, enabling AI assistants to manage tasks, projects, folders, tags, and perspectives via 51 tools, resources, and prompts.511620MIT
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- AlicenseNot gradedqualityCmaintenanceMCP server that gives AI assistants full control over OmniFocus on macOS, including tasks, projects, tags, folders, perspectives, forecast, notifications, and review workflows.42MIT