MCP, MCP server
io.github.LofiFren/picocalc-mcp
A MicroPython firmware and script collection for the Clockwork Pi PicoCalc handheld device, powered by the Raspberry Pi Pico 2W.
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 870e0f24896b, unchanged since the check below.
SECRETS_PATH_CREDENTIAL
Why this grade
- SECRETS_PATH_CREDENTIAL Medium
Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).
README.md, line 321
ssh -i ~/.ssh/id_ecdsa -p 2222 <user>@<pico-ip> # public-key auth
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
Concern
can delete files.
PERMISSION_DELETE_FILES
MicroPython/cleanup.py, line 12
os.remove(fp)
MicroPython/cleanup.py, line 27
os.remove('/sd_chk.py')
MicroPython/cleanup.py, line 34
os.remove('/cleanup.py')
Show more
MicroPython/sd_chk.py, line 142
os.remove("/sd/test.txt")
MicroPython/modules/py_run.py, line 641
os.remove(f'/sd/{name}.py')
MicroPython/modules/pye.py, line 1291
os.remove(fname)
MicroPython/sd/py_scripts/editor.py, line 362
os.remove(full)
MicroPython/tools/bottle.py, line 3841
p = subprocess.Popen(args, env=environ)
MicroPython/tools/dashboard.py, line 35
rc = subprocess.call([sys.executable, "-m", "pip", "install", "mpremote"])
MicroPython/tools/dashboard.py, line 105
r = subprocess.run(cmd, capture_output=True, text=True, timeout=timeout)
MicroPython/tools/dashboard.py, line 242
os.remove(fp)
MicroPython/tools/dashboard.py, line 1120
out = subprocess.check_output(
MicroPython/tools/dashboard.py, line 1135
out = subprocess.check_output(
MicroPython/tools/dashboard.py, line 1143
out = subprocess.check_output(
MicroPython/tools/dashboard.py, line 1155
rc = subprocess.call(
mcp/mcp_server.py, line 41
r = subprocess.run(cmd, capture_output=True, text=True, timeout=timeout)
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
MicroPython/tools/static/index.html, line 512
try { return await (await fetch(path, opts)).json(); }
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_CREDENTIAL
README.md, line 321
ssh -i ~/.ssh/id_ecdsa -p 2222 <user>@<pico-ip> # public-key auth
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
MicroPython/firmware/picocalc_micropython_pico2w.uf2, line 1
UF2
MicroPython/firmware/picocalc_v127_pico2w.uf2, line 1
UF2
MicroPython/firmware/picocalc_v128_pico2w.uf2, line 1
UF2
Show more
MicroPython/firmware/picocalc_v128_pico2w_ramaudio.uf2, line 1
UF2
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 870e0f24896b. can delete files. can reach a host that is not written as a fixed address. 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: 870e0f24896bd28fc0bc68c22c2aca68327b2326
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