dev-browser

Skill · GitHub · ★ 6.7k · graded 2026-10-21Source linked

A Claude Skill to give your agent the ability to use a web browser

1 outside report on file

dev-browser fetches arbitrary web URLs; restrict its folder reach, network access, and credentials before installing.

Based on public adoption and transparency signals as of Oct 21, 2026. Our opinion, not a code audit or security guarantee.

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What it can access

Local filesNo local folder access notedLOW
Command executionRuns shell or system commandsREVIEW
Network reachFetches arbitrary web URLsREVIEW
CredentialsNo API token requiredLOW
Package sourceGitHub (SawyerHood/dev-browser)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

No npm or PyPI package is listed. Install from source: github.com/SawyerHood/dev-browser ↗

All setup options ↓

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About Dev Browser

Dev Browser is an agent skill focused on Web & browsing: A Claude Skill to give your agent the ability to use a web browser.

It is hosted on GitHub at SawyerHood/dev-browser (6,697 GitHub stars). Based on its public metadata, its operational scope includes: fetches arbitrary web urls.

Setup

Check these steps against the project’s own instructions before running anything.

No standalone npm or PyPI package is listed for this skill. Clone and inspect the source repository directly:

bash

git clone https://github.com/SawyerHood/dev-browser.git

Review the README and source files in https://github.com/SawyerHood/dev-browser (opens external site) before running any setup commands.

Why this grade

BB — Some risk signals

Signal-based grade (4/7 points): very widely starred on GitHub, public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

41/100

GitHub stars: 6.7k
Listing last refreshed: 2026-10-28

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Security reports

Reports from our research that name this package. We list them as published and do not rate them.

Listed in the MalSkillBench malicious-skill datasetMalSkillBench benchmark samples · same name as a listed skill, not confirmed to be this one

Check a specific version →

Risks to watch for

Untrusted web content & prompt injection: Fetches arbitrary web pages or remote endpoints where hidden instructions could manipulate agent behavior. Restrict outbound domains and review tool outputs.
Dependency & version pinning: Distributed via GitHub (SawyerHood/dev-browser). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

Check its activity history or logs weekly at first, and look at what it changed or sent.
Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

It asks for more access than its job requires, or prompts you to paste passwords.
It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install Dev Browser?

Dev Browser does not publish a standalone npm or PyPI package. Clone or follow the setup instructions in its source repository at github.com/SawyerHood/dev-browser.

Are there security reports about Dev Browser?

1 report was found for this package in our research. Titles and dates (MalSkillBench benchmark samples) are listed in the Reports section above. Dev Browser currently holds Grade B (Some risk signals) based on public adoption and transparency signals. Key risk areas to watch include untrusted web content & prompt injection:, dependency & version pinning:.

Is Dev Browser actively maintained?

Dev Browser has 6.7k GitHub stars. Our directory data was last refreshed on 2026-10-28. Check recent commit activity, release tags, and open issues at github.com/SawyerHood/dev-browser before pinning it in production.

What are alternatives to Dev Browser?

You can compare Dev Browser side by side with other Browser skills in the Related tools section on this page, or use the Compare tool on AgentArmorHQ.

Maintain or use Dev Browser? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade B for Dev Browser

GitHub README Markdown:

markdown

[![AgentArmorHQ Risk Grade for Dev Browser](https://agentarmorhq.com/api/badge/sawyerhood-dev-browser)](https://agentarmorhq.com/skills/sawyerhood-dev-browser)

HTML embed:

html

<a href="https://agentarmorhq.com/skills/sawyerhood-dev-browser"><img src="https://agentarmorhq.com/api/badge/sawyerhood-dev-browser" alt="AgentArmorHQ Risk Grade for Dev Browser" height="20" /></a>

Terminal check:

terminal

curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "sawyerhood-dev-browser"

Share with your security lead

Need sign-off to use dev-browser? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: dev-browser
- **Listing URL:** https://agentarmorhq.com/skills/sawyerhood-dev-browser
- **Type:** AI agent skill
- **Risk Grade:** Grade B (Some risk signals)
- **Outside Security Advisories on File:** 1
- **Public Adoption:** 6.7k GitHub stars

#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** Runs shell or system commands
- **Network reach:** Fetches arbitrary web URLs
- **Credentials:** No API token required
- **Package source:** GitHub (SawyerHood/dev-browser)

#### Recommended Hardened Setup
- **Source Repo:** https://github.com/SawyerHood/dev-browser
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 21, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type: AI agent skill
Publisher: SawyerHood
Source code: github.com/SawyerHood/dev-browser
Est. context load: ~50 tokens idle · ~450 tokens when active (on-demand skill)
Popularity: 6.7k GitHub stars
Last updated: 2026-10-28
Last graded: 2026-10-21

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