Claude Code, Skill
browser39
Headless web browser for AI agents.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit a0182503031a, unchanged since the check below.
NETWORK_NO_FIXED_HOST PERMISSION_SHELL_DECLARED INSTALL_DOCUMENTED_INSTALLER
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
examples/browser39_tools.py, line 51
"url": {"type": "string", "description": "URL to fetch (http or https)"}, - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
examples/browser39_tools.py, line 81
self._proc = subprocess.Popen( - INSTALL_DOCUMENTED_INSTALLER Note
Documentation shows an installer that pipes a download into a shell.
README.md, line 64
curl -fsSL https://raw.githubusercontent.com/alejandroqh/marketplace/main/h39.sh | bash
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
examples/browser39_tools.py, line 81
self._proc = subprocess.Popen(
Install and update
Note
README documents an installer that pipes a download into a shell.
INSTALL_DOCUMENTED_INSTALLER
README.md, line 64
curl -fsSL https://raw.githubusercontent.com/alejandroqh/marketplace/main/h39.sh | bash
npm/browser39/README.md, line 64
curl -fsSL https://raw.githubusercontent.com/alejandroqh/marketplace/main/h39.sh | bash
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
examples/browser39_tools.py, line 51
"url": {"type": "string", "description": "URL to fetch (http or https)"},
examples/browser39_tools.rs, line 49
"url": { "type": "string", "description": "URL to fetch (http or https)" },
examples/browser39_tools.ts, line 47
url: { type: "string", description: "URL to fetch (http or https)" },
Show more
src/main.rs, line 53
.fetch(url, &HttpMethod::Get, &HashMap::new(), None, None, &options)
src/cli/dispatch.rs, line 63
None => "fetch (invalid)".into(),
src/cli/dispatch.rs, line 280
.fetch(
src/cli/browse/mod.rs, line 104
.fetch(url, &HttpMethod::Get, &HashMap::new(), None, None, &opts)
src/core/http_client.rs, line 264
pub async fn fetch(
src/mcp/params.rs, line 10
/// Absolute URL to fetch (must include scheme, e.g., `https://example.com`).
src/mcp/snapshots/tool_schema.snap, line 604
"description": "Absolute URL to fetch (must include scheme, e.g., `https://example.com`).",
Secrets
Pass
No read of a credential file or secret environment variable found.
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit a0182503031a. requests shell access. The manifest names this permission. README documents an installer that pipes a download into a shell. can reach a host that is not written as a fixed address.
Date and source
Date checked:
github.com
Commit graded: a0182503031a1bee83c99af8ff531cdabc670bb5
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