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Agent skill

Things Mac

by CoWork-OS in CoWork-OS/CoWork-OS

Manage Things 3 via the things CLI on macOS (add/update projects+todos via URL scheme; read/search/list from the local Things database).

MITAuto-check passedProductivity & Automation

Install Things Mac

skills CLI
$ npx skills add CoWork-OS/CoWork-OS --skill things-mac -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install CoWork-OS/CoWork-OS things-mac --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/CoWork-OS/CoWork-OS.git skills-src && mkdir -p .claude/skills && cp -r skills-src/resources/skills/things-mac .claude/skills/things-mac && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
things-mac
GitHub stars
474
Token cost
~538 tokens
SKILL.md length
244 words
Files
1
Skills in repo
46
Repo updated
First seen
Licence
MIT

At a glance

Manage Things 3 via the things CLI on macOS (add/update projects+todos via URL scheme; read/search/list from the local Things database).

  • A user asks CoWork-OSS to add a task to Things
  • SKILL.md covers Purpose, Routing, Trigger Examples and Runtime Prompt
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • List inbox/today/upcoming

What it does

Things Mac is an agent skill from CoWork-OS/CoWork-OS. Manage Things 3 via the things CLI on macOS (add/update projects+todos via URL scheme; read/search/list from the local Things database). Use when a user asks CoWork-OSS to add a task to Things, list inbox/today/upcoming, search tasks, or inspect projects/areas/tags.

Its SKILL.md is about 540 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Productivity & Automation, covering Email management. It works with macOS. The repository describes itself as: Local-first personal agentic OS and everything app for coding, knowledge work, web design, automations, and artifacts. The licence is MIT.

When your agent uses it

  • A user asks CoWork-OSS to add a task to Things
  • List inbox/today/upcoming
  • Inspect projects/areas/tags

Example prompts

  • “/things-mac”

What it can do on your machine

Read from SKILL.md and the folder at commit a77d646. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Things Mac loads about 538 tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 244 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~70
When it runs · the whole SKILL.md, loaded when a task matches
~538

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from CoWork-OS/CoWork-OS at commit a77d646, republished under its MIT licence (© CoWork-OS). 244 words, ~538 tokens.

Download SKILL.mdSave it as .claude/skills/things-mac/SKILL.md (or your agent's skills folder).
name
things-mac
description
Manage Things 3 via the `things` CLI on macOS (add/update projects+todos via URL scheme; read/search/list from the local Things database). Use when a user asks CoWork-OSS to add a task to Things, list inbox/today/upcoming, search tasks, or inspect projects/areas/tags.
version
1.0.0
metadata.author
CoWork OS Contributors <info@coworkosapp.com>

Things-mac

Purpose

Manage Things 3 via the things CLI on macOS (add/update projects+todos via URL scheme; read/search/list from the local Things database). Use when a user asks CoWork-OSS to add a task to Things, list inbox/today/upcoming, search tasks, or inspect projects/areas/tags.

Routing

  • Use when: Use when the user asks to manage Things 3 via the things CLI on macOS add/update projects+todos via URL scheme; read/search/list from the local Things database.
  • Do not use when: Do not use when the request is asking for planning documents, high-level strategy, or non-executable discussion; use the relevant planning or design workflow instead. Avoid using this in non-macOS environments.
  • Outputs: Outcome from Things-mac: task-specific result plus concrete action notes.
  • Success criteria: Returns concrete actions and decisions matching the requested task, with no fabricated tool-side behavior.

Trigger Examples

Positive
  • Use the things-mac skill for this request.
  • Help me with things-mac.
  • Use when the user asks to manage Things 3 via the things CLI on macOS add/update projects+todos via URL scheme; read/search/list from the local Things database.
  • Things-mac: provide an actionable result.
Negative
  • Do not use when the request is asking for planning documents, high-level strategy, or non-executable discussion; use the relevant planning or design workflow instead. Avoid using this in non-macOS environments.
  • Do not use things-mac for unrelated requests.
  • This request is outside things-mac scope.
  • This is conceptual discussion only; no tool workflow is needed.

Runtime Prompt

  • Current runtime prompt length: 2754 characters.
  • Runtime prompt is defined directly in ../things-mac.json.

© CoWork-OS, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in resources/skills/things-mac of CoWork-OS/CoWork-OS.

Open the folder on GitHubat commit a77d646

Compare with similar skills

Things Mac next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Things Mac compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Things Mac this skillCoWork-OS/CoWork-OS474—~538Automated safety check: PassMIT
Things Mactrpc-group/trpc-agent-go1.9k12 repos~888Automated safety check: PassApache-2.0
Apple Mailsundial-org/awesome-openclaw-skills663—~1.5kAutomated safety check: PassNone
Things Setupdavekilleen/Dex493—~2kAutomated safety check: PassMIT
Apple Mail Setupdavekilleen/Dex493—~2.5kAutomated safety check: PassMIT
Emailaiskillstore/marketplace430—~2.1kAutomated safety check: PassNone

Similar skills

  • Things Mac

    trpc-group/trpc-agent-go

    Manage Things 3 via the things CLI on macOS (add/update projects+todos via URL scheme; read/search/list from the local Things database).

    1.9k GitHub starsUsed in 12 repos~888 tokens
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  • Process Inbox

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Works with

Categories

Questions about Things Mac

What does Things Mac do?

Manage Things 3 via the things CLI on macOS (add/update projects+todos via URL scheme; read/search/list from the local Things database). Things Mac is an agent skill from CoWork-OS/CoWork-OS. Manage Things 3 via the things CLI on macOS (add/update projects+todos via URL scheme; read/search/list from the local Things database).

When should I use Things Mac?

Things Mac fits situations like: A user asks CoWork-OSS to add a task to Things; list inbox/today/upcoming; inspect projects/areas/tags.

How do I install Things Mac in Claude Code?

Run `npx skills add CoWork-OS/CoWork-OS --skill things-mac -a claude-code`. Or copy the skill folder (resources/skills/things-mac in CoWork-OS/CoWork-OS) into .claude/skills/things-mac in your project. Claude Code loads it when a task matches its description.

How do I install Things Mac in Codex?

Run `npx skills add CoWork-OS/CoWork-OS --skill things-mac -a codex`. Or copy the skill folder (resources/skills/things-mac in CoWork-OS/CoWork-OS) into .agents/skills/things-mac in your project. Codex loads it when a task matches its description.

Can I use Things Mac in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add CoWork-OS/CoWork-OS --skill things-mac -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/things-mac, .gemini/skills/things-mac, .github/skills/things-mac and .opencode/skills/things-mac in your project.

What does Things Mac need to run?

SKILL.md names no scripts, command-line tools or credentials: Things Mac is instructions for the agent only.

Does Things Mac access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Things Mac safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Things Mac use?

Things Mac is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Things Mac use?

About 538 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Things Mac?

Skills that share tags, products or a category with Things Mac: Things Mac (trpc-group/trpc-agent-go, 1.9k stars), Apple Mail (sundial-org/awesome-openclaw-skills, 663 stars), Things Setup (davekilleen/Dex, 493 stars) and Apple Mail Setup (davekilleen/Dex, 493 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Things Mac?

CoWork-OS (a GitHub organization) maintains it in CoWork-OS/CoWork-OS, which has 474 GitHub stars. The repository holds 46 skills in this directory. The repository was last updated on October 9, 2026.

Source: CoWork-OS/CoWork-OS on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.