Is archlang@1.58.0 safe to install?

archlang@1.58.0

VERIFIED· install only

Publisher claims: "Use when the user wants to create, edit, or inspect an architectural floor plan / building layout as code — e.g. "draw a 2-bedroom apartment", "add a bathroom to this plan", "make the bedroom 1 m wider", "lay out an office floor". ArchLang is a tiny text language that compiles a .arch file to a professional floor-plan drawing (SVG/PNG/PDF/DXF). Drive it entirely through the `archlang` CLI; do not hand-render." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry ClawHubPublisher chanmeng666 · publishing for 8 daysInstalls 257Last detonated 4d ago

$clawhub install archlang

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Coverage

Nothing executable in the bundle ran; the trace covers the install step only.

Tested: every file read, file written and host contacted by what ran
Not tested: use of the skill by an agent

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-11 and scored it 87/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 1 scenarios · 0 deviations

t+CategoryObserved action

0.0sprocessno install scripts in bundle

0.0sprocessscript backend runs setup only

0.0sprocessno install scripts to re-run

Static findings

MEDIUM

npx invocation of non-well-known packageSKILL.md:39 · npx invocation of non-well-known package — may execute untrusted code`archlang <cmd>`; without the global install, write `npx -y @chanmeng666/archlang <cmd>`. Never runFix: Pin versions and sources; vendor anything fetched at install time.

AST06

MEDIUM

npx invocation of non-well-known packageSKILL.md:5 · npx invocation of non-well-known package — may execute untrusted code

compatibility: Needs a shell with Node 18+ and the archlang CLI (npx -y @chanmeng666/archlang, or npm i -g @chanmeng666/archlang for a global archlang).

Fix: Pin versions and sources; vendor anything fetched at install time.

AST06

MEDIUM

npx invocation of non-well-known packageSKILL.md:35 · npx invocation of non-well-known package — may execute untrusted codenpx -y @chanmeng666/archlang --helpFix: Pin versions and sources; vendor anything fetched at install time.

AST06

MEDIUM

npx invocation of non-well-known packageSKILL.md:139 · npx invocation of non-well-known package — may execute untrusted codeinstall, run `archlang link plan.arch` (or `npx -y @chanmeng666/archlang link plan.arch`): itFix: Pin versions and sources; vendor anything fetched at install time.

AST06

MEDIUM

npx invocation of non-well-known packageSKILL.md:443 · npx invocation of non-well-known package — may execute untrusted code(`npx skills add ChanMeng666/archlang` offers them with this one). Each is aFix: Pin versions and sources; vendor anything fetched at install time.

AST06

Cost to the agent

Instructions loaded

≈8,387 tok

1 file · 1 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

Vulnerability advisories (OSV) cover npm and PyPI packages; this registry has no advisory database.