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 andregusman-raiz/a-gusman-claude --skill ag-capturar-telagit clone --depth 1 https://github.com/andregusman-raiz/a-gusman-claudeWrote 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/andregusman-raiz/a-gusman-claude/ag-capturar-tela)<a href="https://agentmods.dev/skills/andregusman-raiz/a-gusman-claude/ag-capturar-tela"><img src="https://agentmods.dev/badge/skills/andregusman-raiz/a-gusman-claude/ag-capturar-tela/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/andregusman-raiz/a-gusman-claude/ag-capturar-tela"><img src="https://agentmods.dev/badge/skills/andregusman-raiz/a-gusman-claude/ag-capturar-tela.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Tool Misuse · line 274 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
- medium Excessive Agency · line 4 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
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 | $0.00053 | $0.03980 |
| Opus 5 | $0.00026 | $0.01990 |
| Sonnet 5 | $0.00011 | $0.00796 |
| Haiku 4.5 | $0.00005 | $0.00398 |
Grade A, and why
ag-capturar-tela 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 12d 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 — 318 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ag-capturar-tela — Router 3-Tier de Captura e Controle Desktop
Papel
Agent utilitario que captura screenshots, analisa conteudo visual e controla mouse/teclado em apps nativos do desktop. Combina visao multimodal do Claude com 3 MCPs em cascata, do mais robusto (Accessibility tree, semantico) ate o ultimo recurso (coordenada-base).
Por que 3 tiers: Coordenada-base (cliclick) e fragil — quebra com mudanca de resolucao, dark mode, scroll, animacao. A Accessibility tree do macOS expoe todo elemento de UI como dado estruturado (AXButton, label="Enviar", enabled=true) — leitura semantica, sem visao computacional, resolution-independent. Tier 1 e a abordagem padrao em 2026; tier 3 fica como fallback quando AX nao cobre o app (jogos, alguns Electron mal-acessiveis).
Diferenca de Playwright MCP: Playwright captura e interage com BROWSER. ag-capturar-tela captura e interage com QUALQUER COISA na tela (apps nativos, desktop, IDE, terminal, System Settings, etc).
Diferenca de ag-testar-manual: ag-testar-manual INTERAGE com browser. ag-capturar-tela INTERAGE com desktop e apps nativos.
Invocacao
Direta (pelo usuario)
/ag-capturar-tela # Tela inteira, descrever
/ag-capturar-tela o que tem na minha tela? # Pergunta especifica
/ag-capturar-tela leia o texto do terminal # OCR
/ag-capturar-tela regiao: 0,0,1920,1080 # Regiao especifica
/ag-capturar-tela monitor: 2 # Monitor especifico
/ag-capturar-tela abra System Settings # Abrir app + navegar
/ag-capturar-tela clique em Accessibility # Clicar em elemento visual
Por outros agents (como utilitario)
Agent({
subagent_type: "ag-capturar-tela",
prompt: "Capture a tela e descreva o que esta visivel. Foco em: [contexto especifico]",
model: "haiku" // rapido, basta para OCR simples
})
Arquitetura: Router 3-Tier
| Tier | MCP | Paradigma | Quando usar |
|---|---|---|---|
| 1 | macos-use |
Accessibility tree (semantico) | Default. Qualquer app com AX exposto. Resolution-independent, sem visao computacional. |
| 2 | macos-automator |
AppleScript / JXA | Operacoes de sistema (Finder, abrir/mover/fechar janelas, clipboard, notificacoes), apps com automation suite, recipes prontas (200+). |
| 3 | computer-use |
Coordenada-base (cliclick + screenshot) | Fallback. Apps mal-acessiveis (alguns Electron), jogos, situacoes onde tier 1 e 2 falharam. |
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.
- 12d ago First seen · 318 lines · 53 tokens per session scan A 0072781092a0
ag-capturar-tela is a skill published in the GitHub repository andregusman-raiz/a-gusman-claude (19 stars, last pushed 3d ago), licensed MIT. It adds 53 tokens to every session and 3,980 once invoked, about $0.0003 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 2026-08-30.
Other skills, from other repositories
screenshot-intake
Use when a user provides a URL or screenshot files and wants to build an app from them, or when starting /build-from-screenshot. Captures pages via Chrome DevTools or Playwright MCP, analyzes structure with Claude vision, and produces build-spec.json. Keywords: screenshot intake, URL capture, build spec, screenshot…
ui-test
Runs UI tests described in plain English by driving real Chrome via the Claude-in-Chrome extension. Covers end-to-end flows (clicks, forms, assertions), visual checks (screenshot + optional baseline diff), accessibility (axe-core), performance (Web Vitals + light Lighthouse-style metrics), and an interactive --debug…
daily-working
End-to-end pipeline: pull a task from the project's task tracker by ID (Redmine or GitHub Issues today, more addable via a new adapter), sanity-check and impact-assess it against the codebase before touching anything, implement it with the Claude CLI, verify the result in a real browser via the Claude Chrome extension…
audit-ui-e2e
Runs a beginner-mind end-to-end UI audit of any running app — local dev server, staging, production, or a specific URL. Drives Chrome through every interactive element on the target surface, collects structured findings (severity, category, where, symptom, impact, repro, triage), and hands the result off to…
capture-screens
Automatically navigates a web app using Playwright MCP and captures context-aware named screenshots at each product feature state. Names each file semantically based on context (e.g., checkout-payment-form-filled.png). Outputs a manifest.json mapping filenames to descriptions and a summary report. Use when documenting…
browse
Fast headless browser for QA testing and site dogfooding. Navigate any URL, interact with elements, verify page state, diff before/after actions, take annotated screenshots, check responsive layouts, test forms and uploads, handle dialogs, and assert element states. 100ms per command. Use when you need to test a…