Grades are a hygiene check, not a security guarantee.

MCP, MCP server

ProofFlow

ProofFlow, an MCP server 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.

Rescanned at commit b7cc3c3f2a05, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    backend/proofflow/services/backup_service.py, line 208 shutil.rmtree(staging_dir)

  • NETWORK_NO_FIXED_HOST Low

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

    backend/proofflow/services/review_service.py, line 1128 "curl ",

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    backend/proofflow/services/git_service.py, line 37 SENSITIVE_UNTRACKED_EXACT_NAMES = {".env", ".env.local", ".env.production"}

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    backend/proofflow/config.py, line 25 return os.getenv("PROOFFLOW_API_KEY") or None

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

    backend/proofflow/services/backup_service.py, line 208

    shutil.rmtree(staging_dir)

    backend/proofflow/services/git_service.py, line 218

    result = subprocess.run(

    backend/proofflow/services/review_service.py, line 390

    result = subprocess.run(

    Show more

    scripts/backup_restore_api_smoke.py, line 247

    shutil.rmtree(path, onerror=retry_readonly)

    scripts/ci_agentguard_review.py, line 140

    result = subprocess.run(

    scripts/ci_agentguard_review.py, line 174

    result = subprocess.run(

    scripts/demo_seed.py, line 236

    shutil.rmtree(path, onerror=retry_readonly)

    scripts/demo_seed.py, line 431

    subprocess.run(

    scripts/demo_workflow.py, line 213

    shutil.rmtree(temp_root, ignore_errors=True)

    scripts/generate_real_docs_output.py, line 190

    subprocess.run(["git", "init"], cwd=str(repo_dir), capture_output=True)

    scripts/generate_real_docs_output.py, line 191

    subprocess.run(["git", "config", "user.email", "[email protected]"],

    scripts/generate_real_docs_output.py, line 193

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

    scripts/generate_real_docs_output.py, line 249

    shutil.rmtree(tmp, ignore_errors=True)

    scripts/ledger_mcp_smoke.py, line 320

    shutil.rmtree(temp_root, ignore_errors=True)

    scripts/ledger_risk_hints_dogfood_matrix.py, line 505

    shutil.rmtree(temp_root, ignore_errors=True)

    scripts/ledger_risk_hints_smoke.py, line 322

    shutil.rmtree(temp_root, ignore_errors=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

    backend/proofflow/services/review_service.py, line 1128

    "curl ",

    backend/proofflow/services/review_service.py, line 1129

    "wget ",

    frontend/src/api/client.ts, line 42

    const response = await fetch(`${API_BASE_URL}${path}`, {

    Show more

    mcp-server/src/proofflow_mcp/client.py, line 47

    response = await http.request(method, path, **kwargs)

    vscode-proofflow/src/mcp/client.ts, line 104

    response = await fetch(url, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    backend/proofflow/config.py, line 25

    return os.getenv("PROOFFLOW_API_KEY") or None

    backend/proofflow/services/git_service.py, line 37

    SENSITIVE_UNTRACKED_EXACT_NAMES = {".env", ".env.local", ".env.production"}

    mcp-server/src/proofflow_mcp/client.py, line 30

    api_key = os.getenv("PROOFFLOW_API_KEY")

    Show more

    scripts/generate_real_docs_output.py, line 95

    " return jwt.verify(token, process.env.JWT_SECRET!);\n"

    scripts/ledger_risk_hints_dogfood_matrix.py, line 207

    api_key = os.getenv("PROOFFLOW_API_KEY")

    scripts/rc_api_smoke.py, line 121

    (repo / ".env").write_text("PROOFFLOW_SECRET=rc-smoke-secret\n", encoding="utf-8")

    docs/codex_workflow.md, line 192

    - Sensitive files (.env, .pem, .key, .db) automatically excluded

    项目总结.txt, line 285

    巨大文件进入 SQLite / Proof Packet

    项目总结.txt, line 299

    - .env

    项目总结.txt, line 300

    - .env.local

    项目总结.txt, line 301

    - .env.production

    项目总结.txt, line 1671

    - 自动过滤敏感文件(.env, .pem, .key)和超大文件(>256KB)

  • 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 b7cc3c3f2a05. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: b7cc3c3f2a05d185541d3df3610d07001362af96

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