agentmods.dev

agent-browser

agent-browser is a skill for Claude Code from JuanMarchetto/agent-skills. It costs 105 tokens per session (2,797 once invoked), scanned A, original, MIT.

A browser-automation skill for AI agents using Playwright, a tool for controlling web browsers through code, with references to page elements.

In plain words
What is it for?
It helps open pages, inspect interactive elements, fill forms, click, drag and drop, upload files, run JavaScript, extract data, test websites, take screenshots, and record sessions.
Why use it?
It removes much of the manual work of finding page controls and repeating browser interactions while keeping track of the current page state.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the agent-browser plugin — 1 skill shipped together

not rated 5repo 7mo ago A scan 105 tokens original MIT

Good fit It helps open pages, inspect interactive elements, fill forms, click, drag and drop, upload files, run JavaScript, extract data, test websites, take screenshots, and record sessions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/juanmarchetto/agent-skills/agent-browser
View source ↗ JuanMarchetto/agent-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 JuanMarchetto/agent-skills --skill agent-browser
Clone the repo
git clone --depth 1 https://github.com/JuanMarchetto/agent-skills

Made for: Claude Code.

Or install agent-browser, the plugin that ships this one along with the rest of its 1 skill.

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.

agentmods badge for agent-browser

README.md
[![agentmods](https://agentmods.dev/badge/skills/juanmarchetto/agent-skills/agent-browser/github.svg)](https://agentmods.dev/skills/juanmarchetto/agent-skills/agent-browser)
Your own site
<a href="https://agentmods.dev/skills/juanmarchetto/agent-skills/agent-browser"><img src="https://agentmods.dev/badge/skills/juanmarchetto/agent-skills/agent-browser/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.

agentmods 80×15 button for agent-browser

Your own site · 80×15
<a href="https://agentmods.dev/skills/juanmarchetto/agent-skills/agent-browser"><img src="https://agentmods.dev/badge/skills/juanmarchetto/agent-skills/agent-browser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,797 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 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00105 $0.02797
Opus 5.5 $0.00042 $0.01119
Sonnet 5.5 $0.00021 $0.00559
Haiku 4.5 $0.00011 $0.00280

Measured 2mo ago against content hash ebdb6267533a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-browser 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 2mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (templates/authenticated-session.sh, templates/capture-workflow.sh, templates/form-automation.sh), 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.

skills/agent-browser/SKILL.md · 315 lines

How it starts

The opening of the file, as written. The whole thing — 315 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agentic Browser

Browser automation for AI agents via inference.sh. Uses Playwright under the hood with a simple @e ref system for element interaction.

Agentic Browser

Quick Start

Requires inference.sh CLI (infsh). Get installation instructions: npx skills add inference-sh/skills@agent-tools

infsh login

# Open a page and get interactive elements
infsh app run agent-browser --function open --input '{"url": "https://example.com"}' --session new

Core Workflow

Every browser automation follows this pattern:

  1. Open - Navigate to URL, get @e refs for elements
  2. Interact - Use refs to click, fill, drag, etc.
  3. Re-snapshot - After navigation/changes, get fresh refs
  4. Close - End session (returns video if recording)
# 1. Start session
RESULT=$(infsh app run agent-browser --function open --session new --input '{
  "url": "https://example.com/login"
}')
SESSION_ID=$(echo $RESULT | jq -r '.session_id')
# Elements: @e1 [input] "Email", @e2 [input] "Password", @e3 [button] "Sign In"

# 2. Fill and submit
infsh app run agent-browser --function interact --session $SESSION_ID --input '{
  "action": "fill", "ref": "@e1", "text": "[email protected]"
}'
infsh app run agent-browser --function interact --session $SESSION_ID --input '{
  "action": "fill", "ref": "@e2", "text": "password123"
}'
infsh app run agent-browser --function interact --session $SESSION_ID --input '{
  "action": "click", "ref": "@e3"
}'

# 3. Re-snapshot after navigation
infsh app run agent-browser --function snapshot --session $SESSION_ID --input '{}'

# 4. Close when done
infsh app run agent-browser --function close --session $SESSION_ID --input '{}'

Functions

Function Description
open Navigate to URL, configure browser (viewport, proxy, video recording)
snapshot Re-fetch page state with @e refs after DOM changes
interact Perform actions using @e refs (click, fill, drag, upload, etc.)
screenshot Take page screenshot (viewport or full page)
execute Run JavaScript code on the page
close Close session, returns video if recording was enabled

Read the full file on GitHub · 315 lines

Files

What ships with it

12 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.

  1. 2mo ago First seen · 315 lines · 105 tokens per session scan A ebdb6267533a

Subscribe to this mod's changes

agent-browser is a skill published in the GitHub repository JuanMarchetto/agent-skills (5 stars, last pushed 7mo ago), licensed MIT. It adds 105 tokens to every session and 2,797 once invoked, about $0.0004 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 2026-08-31.

Browser automationClaude CodeEvaluationai-agentsai-toolsautomationbrowser-automation
Related

agent-browser compared with skills from other repositories

agent-browser next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
agent-browserJuanMarchetto/agent-skillsSkill57mo agoMITA105Claude Code
x402browser-use/browser-useSkill121kyesterdayMITA166Claude Code
browser-usebrowser-use/browser-useSkill121kyesterdayMITA54Claude Code, Codex
remote-browserbrowser-use/browser-useSkill121kyesterdayMITA22Claude Code
cloudbrowser-use/browser-useSkill121kyesterdayMITA177Claude Code
opencli-autofixjackwener/OpenCLISkill31k4d agoApache-2.0A61Claude Code
opencli-adapter-authorjackwener/OpenCLISkill31k4d agoApache-2.0A38Claude Code