registry / opencode-skills-collection / 4.0.66

opencode-skills-collection@4.0.66

OpenCode CLI plugin that automatically downloads and keeps skills up to date.

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

This is an OpenCode plugin that, on plugin load, installs a bundled skill library into the user's OpenCode config rather than a hidden npm install-time attack. Scanner exfiltration and blob findings are vendor API helpers and skill assets, but the automatic skill-surface writes still justify a warning.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

The user installs this package as an OpenCode plugin and OpenCode starts, which loads the plugin.

Impact

The agent receives a large extra skill library, including dual-use helpers, and unexpected folders under the package vault may be removed.

Mechanism

Copies bundled skills into OpenCode config and writes pointer skill files

AI rationale

Evidence

dist/index.jsdist/skill-pointer/index.jsdist/skill-pointer/vault-installer.jsdist/skill-pointer/pointer-generator.jsdist/skill-pointer/config-loader.js~/.config/opencode/skills~/.config/opencode/skill-libraries~/.config/opencode/skill-filter.jsoncbundled-skillsskills_index.json

Decision evidence

public snapshot

AI called this Suspicious at 84.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

On OpenCode plugin load, the package copies bundled skills into the user OpenCode skill vault and writes pointer skill files under the user OpenCode skills directory.
The vault installer deletes skill folders in that vault that are not in the published index, and the pointer writer removes unexpected category-pointer folders.
The default filter excludes no risk levels, so bundled offensive and pentest skills are installed unless the user adds a filter file.
Bundled helper scripts send the user's Apify or Hugging Face tokens to those vendors' official APIs when the user or agent runs them.

Evidence against

package.json has no preinstall, install, or postinstall script; the only extra script is a publish-time build.
The plugin runtime in dist does not use network calls, eval, or child processes.
Pointer writes are limited to folders whose names end with the category-pointer suffix and do not overwrite unrelated user skills.
Scanner exfiltration and payload hits are official-API helpers, a bash test runner, a theme PDF, and a shadcn archive, not a hidden receiver.

Behavioral surface

Source & flagged code

10 flagged

bundled-skills/developer-signup-flow/SKILL.mdView file

165patternName = stripe_test_secret severity = high line = 165

High

High Secret

Package contains a high-severity secret pattern.

bundled-skills/developer-signup-flow/SKILL.mdView on unpkg · L165

165patternName = stripe_test_secret severity = high line = 165

High

Secret Pattern

Stripe test secret key in bundled-skills/developer-signup-flow/SKILL.md

bundled-skills/developer-signup-flow/SKILL.mdView on unpkg · L165

bundled-skills/playwright-skill/run.jsView file

Lines 1-32javascript

1#!/usr/bin/env node

2/**

3 * Universal Playwright Executor for Claude Code

4 *

5 * Executes Playwright automation code from:

6 * - File path: node run.js script.js

7 * - Inline code: node run.js 'await page.goto("...")'

8 * - Stdin: cat script.js | node run.js

9 *

10 * Ensures proper module resolution by running from skill directory.

11 */

13const fs = require('fs');

14const path = require('path');

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bundled-skills/playwright-skill/run.jsView on unpkg · L12

15const { execSync } = require('child_process');

16const sanitizeFilename = require('sanitize-filename');

18// Change to skill directory for proper module resolution

19process.chdir(__dirname);

21function safeUserPath(pathValue, baseDir = process.cwd()) {

22 const root = path.resolve(baseDir);

23 const segments = String(pathValue ?? '').split(/[\\/]+/).filter(Boolean).map((segment) => {

24 const sanitized = sanitizeFilename(segment);

25 if (sanitized !== segment || !sanitized) {

26 throw new Error(`Unsafe path segment: ${segment}`);

27 }

28 return sanitized;

29 });

30 const target = path.resolve(root, ...segments);

31 const rel = path.relative(root, target);

32 if (rel.startsWith('..') || path.isAbsolute(rel)) {

bundled-skills/apify-content-analytics/reference/scripts/run_actor.jsView file

Lines 78-118javascript

78 CSV (all data) --output file.csv --format csv

79 Quick answer (no --output) - displays top 5 in chat

81Examples:

bundled-skills/huggingface-tool-builder/references/baseline_hf_api.tsxView file

39L40: const token = process.env.HF_TOKEN; L41: const headers: Record<string, string> = token ... L44: L45: const url = `https://huggingface.co/api/models?limit=${limit}`; L46: ... L54: L55: const text = await res.text(); L56: process.stdout.write(text); L57: })();

High

Credential Exfiltration

Source combines credential-like environment material and outbound requests; review data flow before blocking.

bundled-skills/huggingface-tool-builder/references/baseline_hf_api.tsxView on unpkg · L39

bundled-skills/gemini-deep-research/scripts/research.pyView file

•path = bundled-skills/gemini-deep-research/scripts/research.py kind = build_helper sizeBytes = 24204 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

bundled-skills/gemini-deep-research/scripts/research.pyView on unpkg

bundled-skills/web-artifacts-builder/scripts/shadcn-components.tar.gzView file

•path = bundled-skills/web-artifacts-builder/scripts/shadcn-components.tar.gz kind = compressed_blob sizeBytes = 19967 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

bundled-skills/web-artifacts-builder/scripts/shadcn-components.tar.gzView on unpkg

bundled-skills/theme-factory/theme-showcase.pdfView file

•path = bundled-skills/theme-factory/theme-showcase.pdf kind = high_entropy_blob sizeBytes = 124310 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

bundled-skills/theme-factory/theme-showcase.pdfView on unpkg

bundled-skills/fedora-hyprland-installer/tests/test-scripts.shView file

•path = bundled-skills/fedora-hyprland-installer/tests/test-scripts.sh kind = payload_in_excluded_dir sizeBytes = 1740 magicHex = [redacted]

High

Payload In Excluded Dir

Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.

bundled-skills/fedora-hyprland-installer/tests/test-scripts.shView on unpkg

bundled-skills/go-in-depth/scripts/workflow-script.jsView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 2

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

bundled-skills/go-in-depth/scripts/workflow-script.jsView on unpkg

Source & flagged code

10 flagged · loading source

bundled-skills/developer-signup-flow/SKILL.mdView file

165patternName = stripe_test_secret severity = high line = 165

High

High Secret

Package contains a high-severity secret pattern.

bundled-skills/developer-signup-flow/SKILL.mdView on unpkg · L165

165patternName = stripe_test_secret severity = high line = 165

High

Secret Pattern

Stripe test secret key in bundled-skills/developer-signup-flow/SKILL.md

bundled-skills/developer-signup-flow/SKILL.mdView on unpkg · L165

bundled-skills/playwright-skill/run.jsView file

12L13: const fs = require('fs'); L14: const path = require('path');

Medium

Dynamic Require

Findings

1 Critical6 High7 Medium6 Low

CriticalHardcoded Runtime Data Exfiltrationbundled-skills/apify-content-analytics/reference/scripts/run_actor.js

HighHigh Secretbundled-skills/developer-signup-flow/SKILL.md

HighCredential Exfiltrationbundled-skills/huggingface-tool-builder/references/baseline_hf_api.tsx

HighShips High Entropy Blobbundled-skills/theme-factory/theme-showcase.pdf

HighPayload In Excluded Dirbundled-skills/fedora-hyprland-installer/tests/test-scripts.sh

HighSemantic Analysis Limitedbundled-skills/go-in-depth/scripts/workflow-script.js

HighSecret Patternbundled-skills/developer-signup-flow/SKILL.md

MediumDynamic Requirebundled-skills/playwright-skill/run.js

MediumNetwork

MediumEnvironment Vars

Affected versions and remediation

This report applies to opencode-skills-collection@4.0.66.

See all versions of opencode-skills-collection for other recorded verdicts.

Review the evidence and your use of opencode-skills-collection@4.0.66 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-09-18 13:57:08.041Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Runtime surface

Behavioral surface

Source & flagged code