Claude Code, Skill
Chrome Extension Skills
Ship a paid Chrome extension end to end: MV3 architecture, Google SSO and email/password auth, PayPal and USDT payments, Chrome Web Store listing assets, and VPS deploy.
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.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
skills/chrome-extension-auth/references/email-password.md, line 261
const res = await fetch('https://api.resend.com/emails', { - NETWORK_UNNAMED_HOST Low
Calls a fixed host that the description does not name.
skills/chrome-extension-auth/references/email-password.md, line 261
const res = await fetch('https://api.resend.com/emails', { - SECRETS_PATH_DOTENV Low
Mentions a .env file.
skills/chrome-extension-deploy/assets/backup.template.sh, line 6
# Env (deploy/.env): POSTGRES_USER, POSTGRES_DB, BACKUP_REMOTE, BACKUP_GPG_RECIPIENT, - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
skills/chrome-extension-auth/references/sessions-cors-security.md, line 72
new TextEncoder().encode(process.env.SESSION_SECRET_CURRENT!),
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
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach api.resend.com. The description does not name that host. can reach api.example.com. The description does not name that host. can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
skills/chrome-extension-auth/references/email-password.md, line 261
const res = await fetch('https://api.resend.com/emails', {
skills/chrome-extension-deploy/references/deploy-runbook.md, line 75
curl -sf https://api.example.com/health
skills/chrome-extension-deploy/references/deploy-runbook.md, line 142
curl -sf https://api.example.com/health
Show more
skills/chrome-extension-deploy/references/deploy-runbook.md, line 144
curl -i -X OPTIONS https://api.example.com/v1/auth/nonce \
skills/chrome-extension-deploy/references/server-topology.md, line 48
curl -m 5 http://<server-ip>:8787/health # must NOT succeed
skills/chrome-extension-deploy/references/server-topology.md, line 49
curl -m 5 https://api.example.com/health # must succeed
skills/chrome-extension-deploy/references/tls-cloudflare.md, line 19
curl -v https://api.example.com/health --resolve api.example.com:443:<server-ip>
skills/chrome-extension-payments/references/paypal.md, line 17
const res = await fetch(`${BASE_URL}${path}`, {
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
skills/chrome-extension-auth/references/sessions-cors-security.md, line 72
new TextEncoder().encode(process.env.SESSION_SECRET_CURRENT!),
skills/chrome-extension-auth/references/sessions-cors-security.md, line 73
...(process.env.SESSION_SECRET_PREVIOUS ? [new TextEncoder().encode(process.env.SESSION_SECRET_PREVIOUS)] : []),
skills/chrome-extension-deploy/assets/backup.template.sh, line 6
# Env (deploy/.env): POSTGRES_USER, POSTGRES_DB, BACKUP_REMOTE, BACKUP_GPG_RECIPIENT,
Show more
skills/chrome-extension-deploy/assets/backup.template.sh, line 11
# gpg -d <file> | docker compose -f docker-compose.prod.yml --env-file .env exec -T postgres \
skills/chrome-extension-deploy/assets/backup.template.sh, line 17
. ./.env
skills/chrome-extension-deploy/assets/backup.template.sh, line 28
docker compose -f docker-compose.prod.yml --env-file .env exec -T postgres \
skills/chrome-extension-deploy/references/deploy-runbook.md, line 36
MSYS_NO_PATHCONV=1 tar czf out.tgz -C /d/MySelf/project --exclude=node_modules --exclude=.env .
skills/chrome-extension-deploy/references/deploy-runbook.md, line 57
docker compose -f deploy/docker-compose.prod.yml --env-file deploy/.env up -d --build
skills/chrome-extension-deploy/references/deploy-runbook.md, line 99
docker compose -f deploy/docker-compose.prod.yml --env-file deploy/.env up -d --build
skills/chrome-extension-deploy/references/docker-compose-and-nginx.md, line 31
env_file: ./.env
skills/chrome-extension-deploy/references/env-and-secrets.md, line 33
if (INSECURE_DEFAULTS.has(process.env.ADMIN_SECRET ?? '')) {
skills/chrome-extension-payments/references/plan-changes-discounts-affiliate.md, line 169
const expected = process.env.ADMIN_SECRET ?? '';
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 f96ca2b89d60. can reach api.resend.com. The description does not name that host. can reach api.example.com. The description does not name that host. can reach a host that is not written as a fixed address. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: f96ca2b89d60279f0941079ee17e6e247b709650
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