things-cli

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A small Go CLI for Things3 on macOS. Reads tasks, projects, areas and tags straight from the Things3 SQLite database (read-only) and writes via the things:/// URL scheme and AppleScript — so the app stays the source of truth and your data never leaves the machine.

things                                 # today's tasks
things inbox -j | jq                   # JSON for piping into anything
things add "Buy milk" --when today --tags errand
things edit 3 --add-tags urgent --deadline 2026-05-01
things complete "Pay rent"             # by title, with interactive disambig
things search migrate                  # full-text across titles + notes
things open --project "Launch"         # reveal in the Things app

What it does:

• List & inspect every built-in view (today, inbox, upcoming, anytime, someday, logbook, trash, deadlines) plus projects, areas, tags, and full-text search
• Create tasks and projects with notes, schedules, deadlines, tags, checklists, and headings
• Edit anything mutable via things:///update — only the flags you pass are sent, so unset fields stay untouched
• Complete, cancel, log, or reveal items in the app
• Import Things JSON URL scheme payloads in bulk
• JSON everywhere — every command supports -j / --json for clean piping into jq, agents, or scripts

Teach your agent to drive it. A bundled skill ships in the binary — install it once and your agent knows when to reach for things instead of guessing at AppleScript:

things skill install claude            # also: codex, pi

For other agents, things skill show prints the neutral source so you can append it to whatever your agent reads for instructions (e.g. a project AGENTS.md).

CLI

By default output is plain text formatted for humans. Pass -j / --json for structured JSON suitable for piping into jq or another tool. List commands assign each result a stable index (1, 2, 3, …) you can use in follow-up commands like show, edit, complete, and cancel.

Global flags

Flag	Description	Default
-j, --json	Output as JSON instead of plain text	false
--db PATH	Override the Things3 SQLite database path	auto-detected
-v, --version	Print version, commit, and build date and exit (same as things version)	—

Listing tasks

things <view> prints a built-in list. With no arguments, things prints today. View names take precedence over project names — a non-view argument is treated as a project name (things "Weekly Review"), so a project literally called Inbox would need things -p Inbox.

View	Description
today	Tasks scheduled for today (default)
inbox	Inbox
upcoming	Scheduled tasks and deadlines
anytime	Anytime list
someday	Someday list
logbook	Completed tasks
trash	Trashed tasks
deadlines	Tasks with a deadline

Filters (combine freely with any view):

Flag	Description
-p, --project NAME	Filter by project name or UUID
-a, --area NAME	Filter by area name or UUID
-t, --tag NAME	Filter by tag name

Examples:

things                            # today (default)
things inbox
things upcoming -t urgent
things "Weekly Review"            # tasks in a project by name
things -a Work                    # tasks in an area

Output groups by project or area; numeric indices are stable for follow-up commands until the next listing:

$ things
    Launch v2
1.  [ ]  Draft release notes      [docs]      today
2.  [ ]  Cut RC build                          due:2026-04-30

    Errands
3.  [ ]  Buy milk                 [shopping]
4.  [x]  Pick up dry cleaning

Inspecting tasks, projects, areas, tags

Command	Description
things show <task>	Show a task's detail (with checklist)
things projects [--area NAME] [--completed]	List projects
things areas	List areas
things tags	List tags
things search <query>	Full-text search across titles and notes

<task> accepts a UUID, a numeric index from the last list, or a title substring. When a title matches multiple tasks, an interactive prompt picks between them; non-TTY callers get the match list as an error.

things show 3                     # task #3 from the last list
things show "Pay rent"            # by title (interactive disambig)
things search migrate             # full-text search

$ things show 2
Title:    Cut RC build
UUID:     8K3FpQ2eRtNbHwpNiM71Eu
Status:   Open
Project:  Launch v2
Tags:     release
Deadline: 2026-04-30
Created:  2026-04-12 09:14
Notes:
  Coordinate with marketing before tagging.
Checklist:
  [x] Bump version
  [ ] Update changelog
  [ ] Tag and push

things projects renders a one-line-per-project list; the leading glyph shows completion progress (○ empty, ◔ ◑ ◕ partial, ● done, ◌ cancelled):

$ things projects
◑  Launch v2          Work
◔  Migrate API        Work
○  Garden plan        Home
●  Spring cleaning    Home

Creating tasks and projects

things add <title> creates a task. things project add <title> creates a project.

Flag	add	project add	Description
--notes TEXT	✓	✓	Free-form notes
--when VALUE	✓	✓	Schedule (see Date values)
--deadline DATE	✓	✓	Deadline date
--tags LIST	✓	✓	Comma-separated tags
--checklist ITEMS	✓	—	Newline-separated checklist items
--todos ITEMS	—	✓	Newline-separated initial to-dos
--project NAME	✓	—	Project to add the task into
--heading NAME	✓	—	Heading within the project
--list NAME	✓	—	List (project or area) name
--area NAME	—	✓	Area to file the project under

Examples:

things add "Buy milk" --when today --tags errand,shopping
things add "Ship v2" --project "Launch" --deadline 2026-04-30
things project add "Launch site" --area Work --deadline 2026-05-01

Editing tasks and projects

things edit <task> updates a task via things:///update. things project edit <project> updates a project via things:///update-project. Only the flags you pass are sent — unset fields stay untouched. An empty value clears the field (e.g. --deadline "").

Prerequisite: edit, project edit, and import payloads with operation: update require the Things auth token. Enable it once via Things → Settings → General → Enable Things URLs. Without it, writes fail with update: auth token is required — enable Things URLs in Things → Settings → General ….

Flag	edit	project edit	Description
--title TEXT	✓	✓	Replace title
--notes TEXT	✓	✓	Replace notes
--prepend-notes TEXT	✓	✓	Prepend to notes
--append-notes TEXT	✓	✓	Append to notes
--when VALUE	✓	✓	Reschedule (see Date values)
--deadline DATE	✓	✓	Set deadline
--tags LIST	✓	✓	Replace all tags (comma-separated)
--add-tags LIST	✓	✓	Add tags without replacing existing
--checklist ITEMS	✓	—	Replace checklist (newline-separated)
--prepend-checklist ITEMS	✓	—	Prepend checklist items
--append-checklist ITEMS	✓	—	Append checklist items
--list NAME	✓	—	Move to list/project by name
--list-id UUID	✓	—	Move to list/project by UUID
--heading NAME	✓	—	Set heading within project by name
--heading-id UUID	✓	—	Set heading within project by UUID
--area NAME	—	✓	Move project to area by name
--area-id UUID	—	✓	Move project to area by UUID
--complete	✓	✓	Mark as completed
--cancel	✓	✓	Mark as canceled
--duplicate	✓	✓	Duplicate before applying edits
--reveal	✓	✓	Reveal in Things after editing

Examples:

things edit 3 --title "New title" --when tomorrow
things edit "Buy milk" --add-tags urgent --deadline 2026-05-01
things edit "Old idea" --deadline ""              # clear the deadline
things project edit "Launch" --append-notes "Beta cut on Friday"

Completing, cancelling, logging

Command	Description
things complete <task>	Mark a task or project as completed (project completion is confirmed interactively)
things cancel <task>	Cancel a task
things log	Move today's done/cancelled items to the Logbook (Items → Log Completed)

log is the housekeeping action; logbook (above) is the view of already-archived tasks.

things complete 3
things cancel "Old idea"
things log

Revealing items in Things3

things open brings Things3 forward and reveals a list, item, or quick-find result. Pass exactly one of:

Flag / Argument	Description
<ref>	Built-in list name (today, inbox, …), task UUID, numeric list index, or title
-p, --project NAME	Open a project by name or UUID
-a, --area NAME	Open an area by name or UUID
-t, --tag NAME	Open a tag by name or UUID
-q, --query TEXT	App-side quick find

Additional flags:

Flag	Description
--filter TAGS	Tag filter on the shown list (comma-separated)
--background	Don't bring Things to the foreground

Examples:

things open today
things open "Pay rent"
things open --project "Launch"
things open --query staging

Importing JSON payloads

things import forwards a Things JSON URL scheme payload — a batch of to-do, project, heading, and checklist-item items, each with operation and attributes. The CLI validates the payload is syntactically valid JSON, then forwards it verbatim. The auth token is attached automatically (required for operation: update items, harmless for create-only payloads).

Flag	Description
-f, --file PATH	Read JSON payload from this file instead of stdin
--reveal	Reveal the first created/updated item in Things after import

things import < payload.json
things import --file payload.json --reveal

Note: macOS open has a URL length limit; split very large payloads.

Date values

--when accepts:

Form	Example
Keyword	today, tomorrow, evening, anytime, someday
Date	2026-05-01
Time	HH:MM (21:30) or H:MMam / H:MMpm (9:30PM)
Date + time	2026-05-01@09:30
RFC3339	2026-05-01T09:30:00Z (rewritten to YYYY-MM-DD@HH:MM; offset preserved as wall-clock, no conversion to local time)
Natural language	friday, next monday (English locales only; passed through verbatim)

Inputs within edit distance 2 of a known keyword are rejected client-side as likely typos (e.g. tommorrow, evning) with a "did you mean" hint.

--deadline accepts a YYYY-MM-DD date or an English natural-language phrase. Keywords are not accepted.

project add accepts --notes, --when, --deadline, --tags, --area and --todos (newline-separated initial to-dos).

import accepts a JSON array on stdin (or via --file) matching the Things JSON URL scheme payload — a batch of to-do, project, heading, and checklist-item items, each with operation and attributes. The CLI validates the payload is syntactically valid JSON, then forwards it verbatim. The auth token is attached automatically (required for operation: update items, harmless for create-only payloads). Pass --reveal to jump to the first created item. Note: macOS open has a URL length limit; split very large payloads.

project edit updates an existing project via the things:///update-project URL scheme. Only flags you pass are sent. Supported flags: --title, --notes, --prepend-notes, --append-notes, --when, --deadline, --tags (replace), --add-tags, --area / --area-id, --complete, --cancel, --duplicate, --reveal. An empty value clears the field (e.g. --deadline ""). Requires the Things auth token, same as edit.

edit updates an existing task via the things:///update URL scheme. Only flags you pass are sent, so unset fields stay untouched. Supported flags: --title, --notes, --prepend-notes, --append-notes, --when, --deadline, --tags (replace), --add-tags, --checklist, --prepend-checklist, --append-checklist, --list / --list-id, --heading / --heading-id, --complete, --cancel, --duplicate, --reveal. An empty value clears the field (e.g. --deadline ""). Requires the Things auth token — enable Things → Settings → General → Enable Things URLs.

Agent skill

things-cli bundles an agent skill that teaches Claude Code, OpenAI's Codex CLI, the Pi coding agent, and other compatible agents how to drive the CLI. Install it once and the agent will know when to reach for things instead of guessing.

Command	Description
things skill list	Show supported agents and install status
things skill install <agent>	Install the skill for an agent (claude, codex, pi)
things skill uninstall <agent>	Remove the installed skill
things skill show	Print the neutral skill source
things skill show <agent>	Print the files that would be installed for that agent

Default install paths:

Agent	Path
claude	~/.claude/skills/things-cli/
codex	~/.codex/skills/things-cli/
pi	~/.pi/agent/skills/things-cli/

install and uninstall accept:

Flag	Description
--path DIR	Install or uninstall under a custom directory (e.g. project-local .claude/skills/ or .agents/skills/)
-y, --yes	Skip the overwrite/removal prompt

The skill body is internal/skill/SKILL.md, embedded in the binary — so a plain things upgrade refreshes it; re-run skill install to pick up the new version.

How it works

• Reads go through modernc.org/sqlite (pure Go, no cgo) with PRAGMA query_only = ON, so the CLI cannot mutate the Things database.
• Writes go through the official things:///add and things:///update URL schemes for creating and editing tasks, and through AppleScript for completing and cancelling them. This is the same interface Things exposes to Shortcuts and automation tools.
• Task resolution accepts a UUID, a title (with interactive disambiguation when multiple tasks match) or a numeric index into the last listing.

Install

With Homebrew:

brew install ryanlewis/tap/things

Or one-line install (downloads the latest release, verifies checksums, installs to /usr/local/bin):

curl -fsSL https://raw.githubusercontent.com/ryanlewis/things-cli/main/install.sh | sh

Override the destination with INSTALL_DIR or pin a version with VERSION:

curl -fsSL https://raw.githubusercontent.com/ryanlewis/things-cli/main/install.sh \
  | INSTALL_DIR="$HOME/bin" VERSION=v0.1.0 sh

Or download a prebuilt binary manually from the latest release (darwin_arm64 for Apple Silicon, darwin_amd64 for Intel):

tar -xzf things_*_darwin_arm64.tar.gz
mv things /usr/local/bin/   # or ~/bin, etc.
things version

Or install with go install:

go install github.com/ryanlewis/things-cli/cmd/things@latest

Or build from source:

make build          # produces ./things
# or
go build -o things ./cmd/things

Requires macOS with Things3 installed. Go 1.26 or later when building from source.

Project structure

cmd/things/             CLI entry point (alecthomas/kong)
internal/model/         Shared types + date codecs (ThingsDate, Core Data time)
internal/db/            SQLite queries, read-only
internal/things/        URL scheme + AppleScript writers
internal/output/        JSON and plain-text rendering
internal/cache/         Last-list UUID cache for numeric references

License

MIT