A workflow for capturing an image of a desktop, application window, screen region, or other system view.

Taking system screenshots and choosing an appropriate save location, including temporary captures for inspection.

It provides a saved visual record when an application lacks its own capture tool or when the whole desktop must be documented.

screenshot — Skill for Codex by PracticalSwan

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.

Any agent

npx skills add PracticalSwan/agent-skills --skill screenshot

Clone the repo

git clone --depth 1 https://github.com/PracticalSwan/agent-skills

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/practicalswan/agent-skills/screenshot/github.svg)](https://agentmods.dev/skills/practicalswan/agent-skills/screenshot)

Your own site

<a href="https://agentmods.dev/skills/practicalswan/agent-skills/screenshot"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/screenshot/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/practicalswan/agent-skills/screenshot"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/screenshot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,460 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 84% copy Near-identical to another mod 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 5.1	$0.00045	$0.02460
Opus 5	$0.00023	$0.01230
Sonnet 5	$0.00009	$0.00492
Haiku 4.5	$0.00005	$0.00246

Measured 4d ago against content hash 722a6934b0ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

screenshot 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 4d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/ensure_macos_permissions.sh, scripts/take_screenshot.ps1, scripts/take_screenshot.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

84% identical to screenshot — 55 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

screenshot/SKILL.md · 317 lines

How it starts

The opening of the file, as written. The whole thing — 317 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Screenshot Capture

Follow these save-location rules every time:

If the user specifies a path, save there.
If the user asks for a screenshot without a path, save to the OS default screenshot location.
If Codex needs a screenshot for its own inspection, save to the temp directory.

Tool priority

Prefer tool-specific screenshot capabilities when available (for example: a Figma MCP/skill for Figma files, or Playwright/agent-browser tools for browsers and Electron apps).
Use this skill when explicitly asked, for whole-system desktop captures, or when a tool-specific capture cannot get what you need.
Otherwise, treat this skill as the default for desktop apps without a better-integrated capture tool.

macOS permission preflight (reduce repeated prompts)

On macOS, run the preflight helper once before window/app capture. It checks Screen Recording permission, explains why it is needed, and requests it in one place.

The helpers route Swift's module cache to $TMPDIR/codex-swift-module-cache to avoid extra sandbox module-cache prompts.

bash <path-to-skill>/scripts/ensure_macos_permissions.sh

To avoid multiple sandbox approval prompts, combine preflight + capture in one command when possible:

bash <path-to-skill>/scripts/ensure_macos_permissions.sh && \
python3 <path-to-skill>/scripts/take_screenshot.py --app "Codex"

For Codex inspection runs, keep the output in temp:

bash <path-to-skill>/scripts/ensure_macos_permissions.sh && \
python3 <path-to-skill>/scripts/take_screenshot.py --app "<App>" --mode temp

Use the bundled scripts to avoid re-deriving OS-specific commands.

macOS and Linux (Python helper)

Run the helper from the repo root:

python3 <path-to-skill>/scripts/take_screenshot.py

Common patterns:

Default location (user asked for "a screenshot"):

python3 <path-to-skill>/scripts/take_screenshot.py

Temp location (Codex visual check):

python3 <path-to-skill>/scripts/take_screenshot.py --mode temp

Read the full file on GitHub · 317 lines

Files

What ships with it

11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

4d ago Changed 722a6934b0ef
6d ago Changed 531edeba6555
8d ago First seen · 317 lines · 45 tokens per session scan A 4c2d1ae2e767

Subscribe to this mod's changes

screenshot is a skill published in the GitHub repository PracticalSwan/agent-skills (14 stars, last pushed 4d ago), licensed MIT. It adds 45 tokens to every session and 2,460 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 84% identical to screenshot, differing in 55 lines, and is treated as a copy.

screenshot

screenshot

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

This is a copy

How it starts

Screenshot Capture

Tool priority

macOS permission preflight (reduce repeated prompts)

macOS and Linux (Python helper)

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

visual-recon

browser-automation

release-poster

banner-design

Browser Automation

browserbase-mcp