Grades are a hygiene check, not a security guarantee.

MCP, MCP server

mathema

Proofs and counterexamples for Python functions, kept as records bound to the exact code they were checked against.

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.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    mathema/acceptance.py, line 71 out = subprocess.run(["git", "config", "user.name"],

  • NETWORK_NO_FIXED_HOST Low

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

    docs/modes/init.md, line 22 | `--agents-ref` | branch or tag of the skills repo to fetch (default: the branch matching your mathema minor line, such as `v0.6`, falling back to the repo's default branch); an e

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    uv.lock, line 1 version = 1

  • OBFUSCATION_FILE_CAP_REACHED Note

    The 400 file cap was reached before every file was read.

    uv.lock, line 1 version = 1

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

    mathema/acceptance.py, line 71

    out = subprocess.run(["git", "config", "user.name"],

    mathema/acceptance.py, line 632

    os.remove(plan["path"])

    mathema/auth.py, line 108

    os.remove(config_path())

    Show more

    mathema/badges.py, line 1719

    os.remove(path)

    mathema/cli.py, line 1593

    shutil.rmtree(tmp, ignore_errors=True)

    mathema/cli.py, line 3053

    out = subprocess.run(["git", "rev-parse", "--show-toplevel"],

    mathema/fetch.py, line 74

    own rule). Uses the same `subprocess.run` + timeout pattern as

    mathema/fetch.py, line 82

    r = subprocess.run(cmd, capture_output=True, text=True, timeout=timeout)

    mathema/impl_coverage.py, line 439

    subprocess.run([sys.executable, "-m", "coverage", *args], cwd=root,

    mathema/impl_coverage.py, line 443

    subprocess.run(cmd, shell=True, cwd=root,

    mathema/review.py, line 28

    r = subprocess.run(["git", *args], cwd=root or ".",

    mathema/spec.py, line 621

    out = subprocess.run(["git", "rev-parse", "HEAD"], cwd=root or ".",

  • 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

    docs/modes/init.md, line 22

    | `--agents-ref` | branch or tag of the skills repo to fetch (default: the branch matching your mathema minor line, such as `v0.6`, falling back to the repo's default branch); an e

  • Secrets

    Pass

    No read of a credential file or secret environment variable found.

  • 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. the file cap was reached before every file was read.

    OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

    uv.lock, line 1

    version = 1

    mathema/claim_families.py, line 1

    # SPDX-License-Identifier: BUSL-1.1

    mathema/conjecture.py, line 1

    # SPDX-License-Identifier: BUSL-1.1

    Show more

    mathema/symbolic/_prove.py, line 1

    # SPDX-License-Identifier: BUSL-1.1

    tests/test_a_witness_against_a_proof_reports_the_proof_failed.py, line 1

    # SPDX-License-Identifier: BUSL-1.1

  • Licence

    Pass

    A licence file is present (LICENSE.md).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Note

Hygiene check of commit 290561e55f82. can delete files. can reach a host that is not written as a fixed address. a file was over the read cap and was not fully read. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: 290561e55f82dd44b6a83b4ef01f6c7dd36b8711

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