Claude Code, Skill
skillsmith
Author, lint, package, and security-scan Claude Agent Skills with confidence.
Compatibility: Not stated.
Grade D
Two or more Medium findings, or a High. Only try it in a sandbox.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
OBFUSCATION_RUNS_ENCODED_PAYLOAD SECRETS_PATH_CREDENTIAL
Why this grade
- OBFUSCATION_RUNS_ENCODED_PAYLOAD High
Decodes and runs an encoded payload (for example eval with atob or base64).
skillsmith/scan.py, line 198
(re.compile('eval\\s*\\(\\s*(?:atob|btoa)\\s*\\('), 8, 'eval(atob/btoa) JS obfuscation'), - SECRETS_PATH_CREDENTIAL Medium
Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).
skillsmith/scan.py, line 47
(re.compile('\\bopen\\s*\\([^)]*(id_rsa|id_ed25519|\\.npmrc|\\.netrc|\\.git-credentials)'), 8, 'reads a known credential/secret file'),
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.
If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.
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
skillsmith/scan.py, line 107
(re.compile('\\bsubprocess\\.call\\s*\\([^)]*shell\\s*=\\s*True'), 6, 'subprocess.call with shell=True'),
skillsmith/scan.py, line 108
(re.compile('\\bsubprocess\\.check_output\\s*\\([^)]*shell\\s*=\\s*True'), 6, 'subprocess.check_output with shell=True'),
skillsmith/scan.py, line 109
(re.compile('\\bsubprocess\\.run\\s*\\([^)]*shell\\s*=\\s*True'), 6, 'subprocess.run with shell=True'),
Show more
skillsmith/scan.py, line 110
(re.compile('\\bsubprocess\\.Popen\\s*\\([^)]*shell\\s*=\\s*True'), 6, 'subprocess.Popen with shell=True'),
skillsmith/scan.py, line 533
(re.compile('(?i)subprocess\\.call\\('), 65, 'Python subprocess.call'),
skillsmith/scan.py, line 534
(re.compile('(?i)subprocess\\.run\\('), 65, 'Python subprocess.run'),
skillsmith/scan.py, line 632
(re.compile('\\bsubprocess\\.call\\s*\\([^)]*shell\\s*=\\s*True'), 6, 'subprocess.call with shell=True'),
skillsmith/scan.py, line 633
(re.compile('\\bsubprocess\\.check_output\\s*\\([^)]*shell\\s*=\\s*True'), 6, 'subprocess.check_output with shell=True'),
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.
NETWORK_NO_FIXED_HOST
scripts/scan_github.py, line 44
r = requests.get(
scripts/scan_github.py, line 73
r = requests.get(url, timeout=10)
skillsmith/lookup.py, line 15
with urllib.request.urlopen(req, timeout=30) as resp:
Show more
skillsmith/scan.py, line 331
(re.compile('(?i)wget\\s+--post-file\\s*='), 8, 'wget POST file (data upload)'),
skillsmith/scan.py, line 332
(re.compile('(?i)curl\\s+-F\\s+\\S+=\\S+\\s+https?://'), 7, 'curl multipart upload'),
skillsmith/scan.py, line 395
(re.compile('(?i)\\.bashrc.*curl.*\\|.*sh'), 70, 'Bashrc curl pipe to shell'),
skillsmith/scan.py, line 397
(re.compile('(?i)crontab.*\\*.*\\*.*curl.*\\|.*sh'), 70, 'Crontab curl pipe to shell'),
skillsmith/scan.py, line 410
(re.compile('(?i)/dev/shm.*curl.*\\|'), 65, 'Dev/shm curl pipe'),
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV
scripts/scan_github.py, line 119
token = os.environ.get("GH_TOKEN")
skillsmith/cli.py, line 122
api_key = args.api_key or os.environ.get("SKILLSMITH_API_KEY", "")
skillsmith/scan.py, line 47
(re.compile('\\bopen\\s*\\([^)]*(id_rsa|id_ed25519|\\.npmrc|\\.netrc|\\.git-credentials)'), 8, 'reads a known credential/secret file'),
Show more
skillsmith/scan.py, line 81
(re.compile('glob\\s*\\.\\s*glob\\s*\\([^)]*(?:\\.env|\\.ssh|\\.aws|\\.config|credentials)'), 8, 'NVIDIA E3: globs for .env/.ssh/.aws/credentials files'),
skillsmith/scan.py, line 380
(re.compile('(?i)process\\.env.*NODE_ENV.*test'), 40, 'Environment detection'),
skillsmith/scan.py, line 606
(re.compile('glob\\s*\\.\\s*glob\\s*\\([^)]*(?:\\.env|\\.ssh|\\.aws|\\.config|credentials)'), 8, 'NVIDIA E3: globs for .env/.ssh/.aws/credentials files'),
skillsmith/scan.py, line 905
(re.compile('(?i)process\\.env.*NODE_ENV.*test'), 40, 'Environment detection'),
skillsmith/scan.py, line 1233
(re.compile('(?i)\\b(?:str|grep|find|rg)\\s+.*\\b\\.env\\b'), 4, 'search for .env'),
skillsmith/scan.py, line 1234
(re.compile('(?i)\\b(?:cat|head|tail|less|more)\\s+.*\\.env(?:\\.\\w+)?\\b'), 4, 'read .env file'),
skillsmith/scan.py, line 1236
(re.compile('(?i)\\b(?:ls|find|stat)\\s+.*\\.ssh/?(?:id_rsa|id_ed25519|known_hosts)'), 5, 'SSH key file access'),
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Serious
runs an encoded payload.
OBFUSCATION_RUNS_ENCODED_PAYLOAD
skillsmith/scan.py, line 198
(re.compile('eval\\s*\\(\\s*(?:atob|btoa)\\s*\\('), 8, 'eval(atob/btoa) JS obfuscation'),
skillsmith/scan.py, line 211
(re.compile('eval\\s*\\(\\s*atob\\s*\\('), 9, 'eval(atob()) JS'),
skillsmith/scan.py, line 212
(re.compile('eval\\s*\\(\\s*window\\.atob\\s*\\('), 9, 'eval(window.atob) JS'),
Show more
skillsmith/scan.py, line 723
(re.compile('eval\\s*\\(\\s*(?:atob|btoa)\\s*\\('), 8, 'eval(atob/btoa) JS obfuscation'),
skillsmith/scan.py, line 736
(re.compile('eval\\s*\\(\\s*atob\\s*\\('), 9, 'eval(atob()) JS'),
skillsmith/scan.py, line 737
(re.compile('eval\\s*\\(\\s*window\\.atob\\s*\\('), 9, 'eval(window.atob) JS'),
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 67ad0c754afc. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. reads a credential or environment file. runs an encoded payload.
Date and source
Date checked:
github.com
Commit graded: 67ad0c754afc95c047e7153e35c38b9fffe298ef
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