What is browser-screenshot?

A browser-based screenshot tool that captures an image of a web page at a chosen screen size.

Use it to capture a page or its full scrollable content as a PNG, with optional viewport dimensions and output path.

It lets you inspect or document how a URL appears without taking the screenshot manually.

browser-screenshot — Skill by MrTrenchTrucker/contak-browser-skills

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 MrTrenchTrucker/contak-browser-skills --skill browser-screenshot

Clone the repo

git clone --depth 1 https://github.com/MrTrenchTrucker/contak-browser-skills

Made for: Claude Code, 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/mrtrenchtrucker/contak-browser-skills/browser-screenshot/github.svg)](https://agentmods.dev/skills/mrtrenchtrucker/contak-browser-skills/browser-screenshot)

Your own site

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

Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 329 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

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 5.1	$0.00020	$0.00329
Opus 5.5	$0.00008	$0.00132
Sonnet 5.5	$0.00004	$0.00066
Haiku 4.5	$0.00002	$0.00033

Measured 2mo ago against content hash 3cc21b2f1a61, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

browser-screenshot scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -X POST http://localhost:30001/screenshot \

skills/browser-screenshot/SKILL.md · 39 lines

What it actually says

Browser Screenshot

When invoked, capture a screenshot of the given URL via a Browserless Chromium service running locally or in your environment.

Inputs

url -- target page (required)
viewport -- {width, height}, default {1920, 1080}
output_path -- local file path for the resulting PNG, default /tmp/screenshot.png
full_page -- boolean, default false

Steps

POST to http://<host>:<port>/screenshot with the URL and viewport in the request body.
Save the returned PNG bytes to output_path.
Reference the saved path in your reply to the user.

Output

File path to the PNG screenshot.

Example invocation

curl -s -X POST http://localhost:30001/screenshot \
  -H 'Content-Type: application/json' \
  -d '{
        "url": "https://example.com",
        "options": {"type": "png", "fullPage": false},
        "viewport": {"width": 1920, "height": 1080}
      }' \
  -o /tmp/screenshot.png

Notes

Browserless /screenshot endpoint requires no authentication by default.
For the full setup guide (cross-host usage, troubleshooting, generating an SOP), see sops/SOP_Headless_Browser_Screenshot.md.

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.

2mo ago First seen · 39 lines · 20 tokens per session scan A 3cc21b2f1a61

Subscribe to this mod's changes

browser-screenshot is a skill published in the GitHub repository MrTrenchTrucker/contak-browser-skills (5 stars, last pushed 6mo ago), licensed MIT. It adds 20 tokens to every session and 329 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Browser automation ai-agents browser-automation browserless chrome-devtools-protocol claude headless-chrome

browser-screenshot next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
browser-screenshotMrTrenchTrucker/contak-browser-skills	Skill	5	6mo ago	MIT	A	20	Claude Code, Codex
pinchtabpinchtab/pinchtab	Skill	11k	10d ago	MIT	A	94	Codex
pinchtab-mcppinchtab/pinchtab	Skill	11k	10d ago	MIT	A	52	Claude Code, Codex
Agent Browser AutomationPramodDutta/qaskills	Skill	245	4d ago	MIT	A	37	Claude Code, Codex
douyin-authzJay26/douyin-skills	Skill	60	yesterday	MIT	A	41	Claude Code, Codex
douyin-interactzJay26/douyin-skills	Skill	60	yesterday	MIT	A	53	Claude Code, Codex
douyin-publishzJay26/douyin-skills	Skill	60	yesterday	MIT	A	72	Claude Code, Codex

browser-screenshot