Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Kurashi Skill

Kurashi Skill, a skill listed in the PlugVet directory.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

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 PERMISSION_SHELL_DECLARED NETWORK_NAMED_HOST

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    address-normalize/lookup.py, line 18 def fetch(url, timeout=120):

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    address-normalize/lookup.py, line 18 def fetch(url, timeout=120):

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 37 .env

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    scripts/check-code-blocks.py, line 18 p=subprocess.run(['bash','-n'],input=src,text=True,capture_output=True)

  • NETWORK_NAMED_HOST Note

    Calls a fixed host that the description names.

    address-normalize/lookup.py, line 18 def fetch(url, timeout=120):

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    scripts/check-code-blocks.py, line 18

    p=subprocess.run(['bash','-n'],input=src,text=True,capture_output=True)

    scripts/check-code-blocks.py, line 25

    p=subprocess.run(cmd,input=src,text=True,capture_output=True,timeout=10,cwd=tempfile.gettempdir(),env={'PATH':'/usr/bin:/bin','HOME':tempfile.gettempdir()})

    scripts/check-urls.py, line 80

    out = subprocess.run(['curl', '-sS', '--max-time', '15', 'https://www.jma.go.jp/bosai/amedas/data/latest_time.txt'], capture_output=True, text=True, timeout=20).stdout.strip()

    Show more

    scripts/check-urls.py, line 96

    proc = subprocess.run(['curl', '-sS', '-L', '--connect-timeou

    scripts/check-urls.py, line 128

    proc = subprocess.run(['curl', '-sS', '-L', '--connect-timeout', '8',

    scripts/check-urls.py, line 185

    proc = subprocess.run([

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach soramame.env.go.jp. The description does not name that host. can reach www.jma.go.jp. The description does not name that host. can reach api.calil.jp. The description does not name that host. can reach api.wolfx.jp. The description does not name that host. can reach api.p2pquake.net. The description does not name that host. can reach api.e-stat.go.jp. The description does not name that host. can reach raw.githubusercontent.com. T

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST NETWORK_NAMED_HOST

    address-normalize/lookup.py, line 18

    def fetch(url, timeout=120):

    address-normalize/lookup.py, line 20

    with urllib.request.urlopen(req, timeout=timeout) as r:

    address-normalize/lookup.py, line 28

    z = zipfile.ZipFile(io.BytesIO(fetch(url)))

    Show more

    air-quality/SKILL.md, line 30

    curl -sm 60 -O https://soramame.env.go.jp/data/sokutei/noudoAll/2026/09/26/01.csv

    air-quality/SKILL.md, line 54

    curl -sm 30 https://soramame.env.go.jp/data/sokutei/NoudoTime/13101010/today.csv

    air-quality/SKILL.md, line 64

    curl -sm 120 'https://soramame.env.go.jp/soramame/api/data_search?Start_YM=202609&End_YM=202609&TDFKN_CD=13&REQUEST_DATA=PM2_5,TEMP'

    air-quality/SKILL.md, line 76

    curl -s https://soramame.env.go.jp/data/sokutei/pm25/alert.csv

    air-quality/lookup.py, line 17

    def fetch(url, timeout=60):

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    scripts/check-urls.py, line 44

    (re.compile(r'^https://soramame\.env\.go\.jp/data/sokutei/.+\.csv'), Contract((200,), ('text/csv', 'application/octet-stream', 'text/plain'), 'AEROS CSV')),

    scripts/check-urls.py, line 45

    (re.compile(r'^https://soramame\.env\.go\.jp/'), Contract((200,), ('application/json', 'text/csv', 'text/plain', 'application/octet-stream'), 'AEROS API')),

    .gitignore, line 37

    .env

    Show more

    scripts/check-urls.py, line 46

    (re.compile(r'^https://www\.wbgt\.env\.go\.jp/api/v1/'), Contract((200,), ('application/json',), 'WBGT API v1')),

    scripts/check-urls.py, line 47

    (re.compile(r'^https://www\.wbgt\.env\.go\.jp/man15NH/'), Contract((200,), ('text/csv', 'application/pdf', 'application/octet-stream', 'text/plain'), 'WBGT master/manual')),

    .gitignore, line 36

    # Env / secrets

    .gitignore, line 39

    !.env.example

  • 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 cbc3dbd5ceae. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. can reach soramame.env.go.jp. The description does not name that host. can reach www.jma.go.jp. The description does not name that host. can reach api.calil.jp. The description does not name that host. can reach api.wolfx.jp. The description does not name that host. can reach api.p2pquake.net. The description does not name that host. can reach api.e-stat.go.jp. The description does not name that host. can reach raw.githubusercontent.com. T reads a credential or environment file. Grades are a hygiene check, not a security guara

Date and source

Date checked:

View source

github.com

Commit graded: cbc3dbd5ceae3d51d5723fe30b7104ab18e654f7

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen