FocusRelay — Fast Swift OmniFocus MCP Server and CLI for macOS

Plan your day and keep OmniFocus up to date with AI

FocusRelay is a fast, native Swift MCP server and CLI that helps AI assistants read and safely update OmniFocus using documented OmniFocus APIs.

Install with Homebrew · See what it can do · Star FocusRelay · Contribute

Ask about the work already in OmniFocus, review the answer, and make approved changes without clicking through long task lists.

Related MCP server: MCP OmniFocus

Ask. Review. Update.

FocusRelay is designed for targeted questions and compact answers, so the assistant does not need your entire OmniFocus database for routine requests.

Try prompts like:

• “Help me process my OmniFocus inbox in a small batch.”

• “How many flagged items do I have?”

• “Show me the first three available tasks in my inbox.”

• “Find my task called [task name], flag it, and verify the change.”

• “Set [task name] due tomorrow at 5 PM in my local timezone and verify the change.”

In clients that expose MCP server prompts, select process_inbox. In OpenCode, run /focusrelay:process_inbox to start the guided workflow.

These workflows were tested with multiple MCP-capable models in OpenCode. Updates target stable OmniFocus IDs and can verify the saved result. If names are duplicated, ask to see the candidates before changing anything.

The current release can:

• guide supported MCP clients through a bounded, approval-first inbox workflow;

• find and count tasks using dates, flags, tags, projects, availability, inbox state, completion, estimates, and text search;

• review projects, folders, tags, task counts, and stalled work;

• update names, notes, flags, dates, estimates, tags, project settings, and review intervals;

• mark active and on-hold projects reviewed using OmniFocus's native review timestamp and next-review semantics;

• drop, restore, complete, reactivate, and move existing tasks;

• complete, reactivate, change status, and move existing projects;

• preview a proposed change and verify the saved result.

The current release updates existing tasks and projects. Creating or deleting items is not supported; creation is tracked in #82 and #83.

Why FocusRelay?

Keep the assistant focused

FocusRelay exposes nine model-facing tools: seven read tools plus edit_tasks and edit_projects for supported changes. Combining seven editing tools into two reduced the full catalog from 14 tools to 9 and cut context usage by 7–13% in controlled model tests, leaving more room for the user's actual work. Internal diagnostics stay in the CLI, count commands avoid returning long item lists, and field selection keeps responses compact.

Native Swift speed at real-library scale

FocusRelay is compiled as native Swift and installed with Homebrew, with no Node.js or Python runtime in the request path. Single-pass filtering and early-stop pagination keep focused inbox reads near one second in testing at thousands-of-tasks scale. The same core powers a CLI for precise, low-context queries.

Run where OmniFocus understands its data

The Swift server dispatches work to a lightweight bridge plug-in that runs inside OmniFocus’s Omni Automation context. It uses documented APIs and native statuses, keeping results aligned with OmniFocus without reading its private database.

Make changes you can check

Edit tools target stable IDs and support previews, per-item results, compact return fields, and optional verification. A failed save, update, or verification is reported as a failure—not success.

FocusRelay handles OmniFocus work in order, tells assistants to wait for each update, and reports overload clearly instead of letting requests collide. When an MCP client disconnects, its FocusRelay process exits cleanly rather than remaining in the background.

See the latest release notes for the user-facing changes and upgrade requirements.

Privacy and security

FocusRelay runs locally on your Mac. Its Swift server communicates on-device with a bridge plug-in that accesses OmniFocus through documented APIs. FocusRelay has no hosted cloud service and does not send your OmniFocus data to a FocusRelay-operated service.

Your MCP client and chosen AI model may transmit tool inputs and results under their own privacy terms. Review those settings before using FocusRelay with sensitive data.

Install the OmniFocus MCP server with Homebrew

Requirements:

• macOS 26 or later on Apple silicon;

• OmniFocus 4;

• Homebrew;

• an MCP-compatible assistant or a shell-capable AI agent.

1. Install and trust the formula

Homebrew 6 requires explicit trust for formulae from non-official taps. Trust only the FocusRelay formula, then install it:

brew tap deverman/focus-relay
brew trust --formula deverman/focus-relay/focusrelay
brew install focusrelay

Formula-specific trust authorizes FocusRelay without trusting every current or future formula in the tap. See Homebrew’s Tap Trust documentation for details.

2. Install the OmniFocus plugin

OmniFocus reads plug-ins from more than one folder, and if you have OmniFocus plug-in sync turned on it prefers the iCloud folder. Install into every folder that exists on your Mac, so OmniFocus cannot load a stale copy:

SRC="$(brew --prefix focusrelay)/share/focusrelay/Plugin/FocusRelayBridge.omnijs"

# Sandbox container (always present)
DEST="$HOME/Library/Containers/com.omnigroup.OmniFocus4/Data/Library/Application Support/Plug-Ins"
mkdir -p "$DEST" && cp -R "$SRC" "$DEST/"

# iCloud plug-in folder (only when plug-in sync is enabled)
ICLOUD="$HOME/Library/Mobile Documents/iCloud~com~omnigroup~OmniFocus/Documents/Plug-Ins"
[ -d "$ICLOUD" ] && cp -R "$SRC" "$ICLOUD/" && echo "also installed to iCloud"

The plugin and binary must stay on the same version. Repeat this step after upgrading FocusRelay — a skipped reinstall leaves OmniFocus running the old plug-in with no visible error.

Building from source? Use ./scripts/install-plugin.sh instead; it detects and updates every plug-in folder for you, including custom ones.

3. Restart OmniFocus

Quit OmniFocus completely and reopen it so the updated plugin is loaded:

osascript -e 'tell application "OmniFocus" to quit'
sleep 2
open -a "OmniFocus"

4. Add FocusRelay to your AI assistant

FocusRelay currently supports terminal-based MCP clients: Claude Code, OpenCode, Codex CLI, and other clients launched from a terminal. Desktop applications such as Claude Desktop and ChatGPT's desktop app are not yet supported: macOS restricts their access to the OmniFocus data FocusRelay relies on. Desktop-app support is tracked in #196.

Configure a local stdio MCP server with:

• command: /opt/homebrew/bin/focusrelay

• arguments: serve

Claude Code registers MCP servers from the command line, so no file editing is required:

claude mcp add --scope user focusrelay /opt/homebrew/bin/focusrelay serve

--scope user makes FocusRelay available in every project on your Mac. Use --scope project instead to share the server with collaborators through a checked-in .mcp.json, or omit the flag to enable it only in the current directory.

Confirm the server is registered and reachable:

claude mcp list

FocusRelay should report ✔ Connected. Remove it later with claude mcp remove --scope user focusrelay.

{
  "mcp": {
    "focusrelay": {
      "type": "local",
      "command": ["/opt/homebrew/bin/focusrelay", "serve"],
      "enabled": true
    }
  }
}

On the first query, OmniFocus asks whether to allow the automation. Choose Run Script. If the prompt is hidden, bring OmniFocus to the front.

5. Check the connection

focusrelay --version
focusrelay bridge-health-check
focusrelay list-tasks --fields id,name --limit 1

Then ask:

How many flagged items do I have in OmniFocus?

Download the latest binary and FocusRelayBridge.omnijs from GitHub Releases, or build on macOS 26 or later with the Swift 6.3.3 toolchain selected by the checked-in .swift-version:

git clone https://github.com/deverman/FocusRelayMCP.git
cd FocusRelayMCP
swift build -c release
./scripts/install-plugin.sh

After installing the plugin, restart OmniFocus completely.

Use FocusRelay as an OmniFocus MCP server or CLI

MCP lets compatible assistants discover FocusRelay and choose the right action. The CLI is useful for scripts, debugging, and agents that already have shell access.

The examples below target the current Homebrew release and source build.

# Count without returning every matching task
focusrelay task-counts --flagged true

# Return only three task names
focusrelay list-tasks \
  --inbox-only true \
  --available-only true \
  --limit 3 \
  --fields name

# Preview a change without touching OmniFocus
focusrelay edit-tasks <task-id> \
  --operation update \
  --flagged true \
  --preview-only \
  --return-fields id,name,flagged

Run focusrelay --help for the command list. For write examples and safety rules, see Safe Update Workflows for CLI and MCP.

Compare FocusRelay with other OmniFocus MCP servers

FocusRelay combines a native Swift server with a bridge plug-in that executes inside OmniFocus. Swift keeps MCP fast and compact; the bridge gets fresh data and applies changes through documented OmniFocus APIs.

✅ Available · 🟡 Coming next · 🟠 Backlog · ◇ Project roadmap · — Not currently documented

This comparison reflects each project’s public documentation on July 15, 2026; “Not documented” is not a claim that a feature is impossible. The other public READMEs do not describe an equivalent per-target preview and post-save verification contract.

Preview resolves IDs and validates the change without saving it. Verification runs after OmniFocus saves, reads the affected values back, and reports a mismatch as a failure. These are MCP tool arguments, so Codex, Claude Code, OpenCode, and other standard stdio MCP clients can use them; whether a model chooses them without being asked depends on the model and client. For important changes, ask it to “preview first, then apply with verification.”

Help shape FocusRelay

See GitHub Issues for planned work. If FocusRelay earns a place in your workflow, star the repository so more OmniFocus users can find it.

Want to help? Pick an issue, propose a use case, or open a focused pull request. See CONTRIBUTING.md to get started.

Troubleshooting

The bridge times out

1. Bring OmniFocus to the front and accept the first Run Script prompt.

2. Confirm FocusRelay Bridge is enabled under Automation → Configure Plug-ins….

3. Recopy the plugin, quit OmniFocus completely, and reopen it.

4. Run focusrelay bridge-health-check.

Results look stale after an upgrade

The plugin JavaScript is cached by OmniFocus. Reinstall the plugin and restart OmniFocus completely. Project and tag catalogs cache for five minutes; task queries are always fresh.

The plugin and binary versions do not match

Upgrading the Homebrew formula replaces the binary but leaves the copies of the plugin already installed for OmniFocus untouched, so a skipped step 2 can strand the plugin many releases behind.

Ask the bridge what it is actually running, and compare it against the binary:

focusrelay --version
focusrelay bridge-health-check

A healthy bridge returns "ok":true with the same version as focusrelay --version. If the versions differ, repeat step 2 and step 3.

If the reported version still does not change, OmniFocus is loading a different copy of the plug-in than the one you updated. List every copy on your Mac and check each one:

find ~/Library -name "FocusRelayBridge.omnijs" -maxdepth 8 2>/dev/null | while read -r p; do
  printf '%s\n    %s\n' "$p" "$(grep -m1 -o 'FOCUSRELAY_VERSION = "[^"]*"' "$p/Resources/BridgeLibrary.js")"
done

Every copy must report the same version as the binary. The iCloud folder (~/Library/Mobile Documents/iCloud~com~omnigroup~OmniFocus/Documents/Plug-Ins) takes priority when OmniFocus plug-in sync is enabled, so a current copy in the sandbox container is not enough on its own. Update the stale copies, then quit and reopen OmniFocus completely.

A time-based result looks wrong after travel

Restart the MCP client and OmniFocus so FocusRelay picks up the current macOS timezone.

Development

swift build
swift test

FocusRelay uses Swift Testing from the Swift toolchain. Production query changes must follow the documented Omni Automation contract.

License

FocusRelay is available under the MIT License.