Claude Code, Plugin
Create Chrome Extension
Six skills that scaffold a Chrome extension, fill the listing copy, capture screenshots, set up Chrome Web Store OAuth, and orchestrate submission.
Compatibility: Not stated.
Grade C
One Medium finding. Read the findings before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 87cae9a31dab, unchanged since the check below.
INSTALL_LIFECYCLE_HOOK
Why this grade
- INSTALL_LIFECYCLE_HOOK Medium
A package install hook (preinstall, install, postinstall or prepare) runs a script.
package.json, line 32
postinstall
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
Concern
runs a script at install time.
INSTALL_LIFECYCLE_HOOK
package.json, line 32
postinstall
Network
Concern
can reach a host that is not written as a fixed address. can reach developer.chrome.com. The description does not name that host. can reach super-sound-booster.info. The description does not name that host. can reach everyview.info. The description does not name that host. can reach smartadblocker.com. The description does not name that host.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
proxy/worker.ts, line 84
async fetch(req: Request, env: Env): Promise<Response> {
proxy/worker.ts, line 142
const upstreamResp = await fetch(upstreamReq);
proxy/vercel/api/forward.ts, line 104
const upstreamResp = await fetch(forwardUrl.toString(), {
Show more
proxy-authed/worker.ts, line 127
async fetch(req: Request, env: Env): Promise<Response> {
proxy-authed/worker.ts, line 176
const upstreamResp = await fetch(forwardUrl.toString(), {
screenshots/capture.ts, line 131
const res = await fetch(host);
scripts/cws-api.ts, line 137
* need to make direct fetch() calls to CWS endpoints the library doesn't
scripts/cws-api.ts, line 194
const response = await fetch(url, {
docs/04-security.md, line 30
**Extension side** - replace any direct `fetch('https://api.openai.com/...')` call:
docs/superpowers/specs/2026-04-19-credential-proxy-pattern-design.md, line 125
- A validator rule that flags `fetch('https://api.openai.com/...')` (direct upstream calls) as a warn - "you probably want proxyFetch." Secondary signal; current `no-bundled-creden
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
scripts/readiness-fix.sh, line 882
if [[ -f "$TARGET/.env" ]]; then
scripts/readiness-fix.sh, line 884
echo -e " ${DIM}DRY${NC} .env.example - strip values from .env"
scripts/readiness-fix.sh, line 886
sed 's/=.*/=/' "$TARGET/.env" > "$TARGET/.env.example"
Show more
scripts/readiness-fix.sh, line 887
echo -e " ${GREEN}CREATED${NC} .env.example - stripped values from .env"
scripts/readiness-fix.sh, line 890
elif [[ -f "$TARGET/.env.local" ]]; then
scripts/readiness-fix.sh, line 892
echo -e " ${DIM}DRY${NC} .env.example - strip values from .env.local"
scripts/readiness-fix.sh, line 894
sed 's/=.*/=/' "$TARGET/.env.local" > "$TARGET/.env.example"
scripts/readiness-fix.sh, line 895
echo -e " ${GREEN}CREATED${NC} .env.example - stripped values from .env.local"
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Note
a file was over the read cap and was not fully read.
OBFUSCATION_FILE_OVER_READ_CAP
package-lock.json, line 1
{
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 87cae9a31dab. runs a script at install time. can reach a host that is not written as a fixed address. can reach developer.chrome.com. The description does not name that host. can reach super-sound-booster.info. The description does not name that host. can reach everyview.info. The description does not name that host. can reach smartadblocker.com. The description does not name that host. reads a credential or environment file. a file was over the read cap and was not fully read.
Date and source
Date checked:
github.com
Commit graded: 87cae9a31daba5b35dc363981ee048df3b1dd411
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