Skills/npm/archlens-skill

archlens-skill@1.1.0

VERIFIED· startup only

Publisher claims: "Cross-platform CLI and installer for Archlens Clean Architecture governance policies and AI assistant skills" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher fmatar · publishing for 50 daysInstalls 1,917Last detonated 2d ago
$claude mcp add archlens-skill -- npx -y @fmatar/archlens-skill
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Coverage

Startup only; authenticated tool behavior not tested.
Tested
server startup over stdio (initialize sent) · every file read, file written and host contacted by what ran
Not tested
the tool list (the server exited before answering) · what the tools do when called with real credentials

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; startup only; authenticated tool behavior not tested) on 2026-11-12 and scored it 90/100 (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 · 20 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
20sclaimedstartup only: exited (0) before answering · To visualize and govern Clean Architecture boundaries: 1. Launch Archlens workbench 2. Visit: http://localhost:8088?projectRoot=/tmp/ks-detonate-hipbfd/task/home/work/acme-api/.claude/skills/@fmatar/archlens-skill 3. Or press ⌘O / Ctrl+O inside Archlens to select this workspace.
20sprocessscript backend runs setup only
20sprocessno install scripts to re-run

Static findings

MEDIUM
npx invocation of non-well-known packageskills/archlens/SKILL.md:72 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill prompt --path .Fix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packagebin/index.js:105 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill promptFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packagebin/index.js:102 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill mcpFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens/SKILL.md:56 · npx invocation of non-well-known package — may execute untrusted codenpx skills add fmatar/archlensFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packagebin/index.js:99 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill --mcpFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packagebin/index.js:97 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill start --openFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens/SKILL.md:69 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill check --path . --max-violations 0 --detect-cycles --screaming-threshold 0.70 --suggest-features --fitness-threshold 0.85 --format sarif -O archlens-results.sarifFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens/SKILL.md:66 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill start --openFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens-install-policy/SKILL.md:51 · npx invocation of non-well-known package — may execute untrusted codeExecute the cross-platform CLI via NPX against the target repository:Fix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packagebin/index.js:53 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill [command] [options]Fix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens/SKILL.md:63 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill --path . --yesFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packagesrc/checker.js:827 · npx invocation of non-well-known package — may execute untrusted codeerror: `No Archlens policy found in ${root}. Run 'npx @fmatar/archlens-skill init' first.`Fix: Pin versions and sources; vendor anything fetched at install time.
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LOW
Instructs the agent to modify its persistent memory or instruction filessrc/upgrader.js:79 · Instructs the agent to modify its persistent memory or instruction files · informational: not an instruction file// Update companion files: CLAUDE.md and AGENTS.mdFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
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npx invocation of non-well-known packagesrc/mcp-registry.js:264 · npx invocation of non-well-known package — may execute untrusted code4. **Verify**: Run \`npx @fmatar/archlens-skill check --detect-cycles\` to verify zero violations.Fix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens-install-policy/SKILL.md:64 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill prompt --path . --copyFix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens-install-policy/SKILL.md:58 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill upgrade --path .Fix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packagesrc/installer.js:189 · npx invocation of non-well-known package — may execute untrusted code// Install skills package from GitHub or local bundled skills via `npx skills add`Fix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens-install-policy/SKILL.md:61 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill prompt --path .Fix: Pin versions and sources; vendor anything fetched at install time.
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npx invocation of non-well-known packageskills/archlens-install-policy/SKILL.md:55 · npx invocation of non-well-known package — may execute untrusted codenpx @fmatar/archlens-skill --path . --yesFix: Pin versions and sources; vendor anything fetched at install time.
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Cost to the agent

Instructions loaded
≈4,302 tok
3 files · 18 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for @fmatar/archlens-skill@1.1.0 as of 2d ago. This is the package itself, not its dependencies.