A macOS desktop-control command set that can take screenshots and operate the mouse, keyboard, windows, displays, clipboard, and scrolling.

Use it to click buttons, type text, press keys, drag items, scroll, manage windows, copy or paste, and capture full-screen, window, display, or selected-region screenshots.

It lets an agent inspect what is on screen, perform native desktop actions, and take another screenshot to check the result. It requires macOS, Node.js 18 or newer, and Accessibility permission.

computer — Command by gettalon

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add commands/gettalon/talon-plugins/computer

Clone the repo

git clone --depth 1 https://github.com/gettalon/talon-plugins

Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,842 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5	$0.00040	$0.01842
Opus 5	$0.00020	$0.00921
Sonnet 5	$0.00008	$0.00368
Haiku 4.5	$0.00004	$0.00184

Measured yesterday against content hash 47972dddb6cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

computer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/talon/commands/computer.md · 221 lines

How it starts

The opening of the file, as written. The whole thing — 221 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Computer Use

Control the macOS desktop using the usecomputer CLI. 17 commands for mouse, keyboard, screenshots, windows, displays, clipboard, and coordinate mapping.

Setup

npm install -g usecomputer

Requirements: macOS, Accessibility permissions enabled for your terminal, Node.js 18+.

Core Workflow

Screenshot → see what's on screen
Analyze → find the target coordinates
Act → click, type, or press keys (use --coord-map from screenshot)
Verify → screenshot again to confirm

Commands (17 total)

Screenshot

usecomputer screenshot /tmp/screen.png --json
usecomputer screenshot /tmp/region.png --region 0,0,800,600 --json
usecomputer screenshot /tmp/win.png --window 1234 --json
usecomputer screenshot /tmp/screen.png --display 1 --json
usecomputer screenshot /tmp/annotated.png --annotate --json

Options: --region x,y,w,h, --display N, --window ID, --annotate, --json Returns JSON: path, coordMap, desktopIndex, imageWidth, imageHeight, hint

Always pass --coord-map from screenshot output when clicking/hovering/dragging.

Click

usecomputer click -x 500 -y 300 --coord-map "0,0,1792,1120,1568,980"
usecomputer click -x 500 -y 300 --button right --coord-map "..."
usecomputer click -x 500 -y 300 --count 2 --coord-map "..."
usecomputer click -x 500 -y 300 --modifiers ctrl,shift --coord-map "..."

Options: --button left|right|middle, --count N, --modifiers ctrl,shift,alt,meta, --coord-map

Hover — Move cursor without clicking

usecomputer hover -x 500 -y 300 --coord-map "..."

Mouse Move

usecomputer mouse move -x 500 -y 300 --coord-map "..."

Mouse Down / Up — Press and hold / release

usecomputer mouse down --button left
usecomputer mouse up --button left

Options: --button left|right|middle

Mouse Position

usecomputer mouse position --json

Type

usecomputer type "Hello world"
usecomputer type "slow text" --delay 20
cat file.txt | usecomputer type --stdin --chunk-size 4000 --chunk-delay 15
usecomputer type "limited" --max-length 1000

Options: --delay ms, --stdin, --chunk-size N, --chunk-delay ms, --max-length N

Read the full file on GitHub · 221 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 221 lines · 40 tokens per session scan A 47972dddb6cd

Subscribe to this mod's changes

computer is a command published in the GitHub repository gettalon/talon-plugins (6 stars, last pushed 5mo ago), licensed MIT. It adds 40 tokens to every session and 1,842 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Browser automation Productivity Writing and docs ai-tools browser-automation chrome-devtools chrome-extension claude claude-code

computer