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.
npx skills add X-School-Academy/skill-pilot --skill screen-drawinggit clone --depth 1 https://github.com/X-School-Academy/skill-pilotWrote 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.
[](https://agentmods.dev/skills/x-school-academy/skill-pilot/screen-drawing)<a href="https://agentmods.dev/skills/x-school-academy/skill-pilot/screen-drawing"><img src="https://agentmods.dev/badge/skills/x-school-academy/skill-pilot/screen-drawing/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.
<a href="https://agentmods.dev/skills/x-school-academy/skill-pilot/screen-drawing"><img src="https://agentmods.dev/badge/skills/x-school-academy/skill-pilot/screen-drawing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00691 |
| Opus 5.5 | $0.00018 | $0.00276 |
| Sonnet 5.5 | $0.00009 | $0.00138 |
| Haiku 4.5 | $0.00005 | $0.00069 |
Grade A, and why
screen-drawing 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 16d ago.
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.
How it starts
The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AI Builder - Screen Drawing
This skill provides a macOS screen overlay tool for drawing bounding boxes.
quickmode: draw one rectangle and exit automatically (default 5 seconds).manualmode: run a long-lived process for user-driven rectangle drawing, typically in tmux.
When to Use This Skill
- You need to visually highlight a target region with a temporary rectangle.
- You need a short-lived bounding box overlay that auto-exits after 5 seconds.
- You need a user-controlled manual drawing session that can run in the background.
- You need explicit start/stop lifecycle control for drawing sessions.
Your Roles in This Skill
- QA Engineer: Validate rectangle position and duration against the requested target area.
- DevOps Engineer: Start, monitor, and stop manual drawing processes safely using tmux.
Role Communication
As an expert in your assigned roles, you must announce your actions before performing them using the following format:
As a {Role} [and {Role}, ...], I will {action description}
This communication pattern ensures transparency and allows for human-in-the-loop oversight at key decision points.
Instructions
Follow these steps in order.
Step 1: Confirm Environment
- This skill is macOS-only.
- Run commands from the project root.
- Ensure the terminal app has required macOS permissions if overlays do not appear.
Step 2: Quick Rectangle (Auto Exit in 5s)
Draw a single bounding box and exit after 5 seconds:
core/bin/mac-screen-drawing --mode quick --bbox '200,180,640,360' --duration 5
Notes:
bboxformat isx,y,width,heightin top-left screen coordinates.- If
--bboxis omitted, the tool draws a centered default rectangle. --durationdefaults to5.
Step 3: Start Manual Drawing in tmux (Background)
Start a background manual drawing process:
tmux new-session -d -s screen-drawing 'core/bin/mac-screen-drawing --mode manual --state-path .skillpilot/temp/screen-drawing-state.json'
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.
- 16d ago First seen · 100 lines · 45 tokens per session scan A a6620861d1ed
screen-drawing is a skill published in the GitHub repository X-School-Academy/skill-pilot (20 stars, last pushed 4mo ago), licensed MIT. It adds 45 tokens to every session and 691 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-02.
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