Grades are a hygiene check, not a security guarantee.

MCP, MCP server

MemWhale

MemWhale, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings 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 d141a4cec8e5.

SECRETS_PATH_CREDENTIAL

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    linux/completions/mw.bash, line 122 # ssh hosts from ~/.ssh/config

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

    benchmarks/terminal_bench/memorywhale_agent.py, line 171

    shutil.rmtree(staging, ignore_errors=True)

    scripts/smoke-release.py, line 67

    result = subprocess.run(

    scripts/smoke-release.py, line 127

    server = subprocess.Popen(

    Show more

    scripts/test-codewhale-plugin.py, line 39

    subprocess.run(["sh", "-n", str(script)], check=True)

    scripts/test-codewhale-plugin.py, line 50

    result = subprocess.run(["sh", str(script)], cwd=BUNDLE, env=trial,

    scripts/test-codewhale-plugin.py, line 57

    subprocess.run([str(bins / "mw"), "remember", marker], env=env, cwd=root,

    scripts/test-codewhale-plugin.py, line 67

    result = subprocess.run(["sh", str(script)], cwd=BUNDLE, env=env,

    scripts/verify-waku-mcp.py, line 135

    revision = subprocess.check_output(['git', '-C', str(a.waku_source), 'rev-parse', 'HEAD'], text=True).strip()

    scripts/verify-waku-mcp.py, line 137

    require(not subprocess.check_output(['git', '-C', str(a.waku_source), 'status', '--porcelain'], text=True).strip(), 'Waku source must remain unmodified')

  • Install and update

    Note

    The docs document an installer that pipes a download into a shell.

    INSTALL_DOCUMENTED_INSTALLER

    install.sh, line 4

    # curl -fsSL https://raw.githubusercontent.com/wuisabel-gif/MemWhale/main/install.sh | sh

    docs/blog/agent-memory-of-what-failed.md, line 119

    curl -fsSL https://raw.githubusercontent.com/wuisabel-gif/MemWhale/main/install.sh | sh

    docs/guides/getting-started.md, line 6

    curl -fsSL https://raw.githubusercontent.com/wuisabel-gif/MemWhale/main/install.sh | sh

    Show more

    docs/project/DEBUG.md, line 133

    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

    index.html, line 1247

    <pre><span class="prompt">$</span> curl -fsSL https://raw.githubusercontent.com/wuisabel-gif/MemWhale/main/install.sh | sh

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    install.sh, line 67

    curl -fsSL -H "Authorization: Bearer $GITHUB_TOKEN" \

    install.sh, line 71

    curl -fsSL "https://api.github.com/repos/$REPO/releases/latest" \

    install.sh, line 94

    curl -fSL "$url" -o "$tmp/$asset"

    Show more

    install.sh, line 100

    if curl -fsSL "$url.sha256" -o "$tmp/$asset.sha256" 2>/dev/null; then

    benchmarks/terminal_bench/memorywhale_agent.py, line 94

    f'curl -fsSLO "{RELEASES}/v{v}/$n.tar.gz" -O "{RELEASES}/v{v}/$n.tar.gz.sha256"; '

    crates/mw-cli/src/case_files.rs, line 434

    assert!(out.contains("Attempt command #5 (exit 1): curl token=[REDACTED]"));

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    scripts/sync-readme-locales.mjs, line 426

    apiKey: options.apiKey ?? process.env.README_TRANSLATION_API_KEY,

    linux/completions/mw.bash, line 122

    # ssh hosts from ~/.ssh/config

    linux/completions/mw.bash, line 124

    hosts="$(sed -n 's/^[Hh]ost[[:space:]]\{1,\}\(.*\)/\1/p' ~/.ssh/config 2>/dev/null | tr ' ' '\n' | grep -v '[*?]')"

    Show more

    crates/mw-cli/src/lib.rs, line 3853

    password: hunter2secret in .env, tok\x1ben=split4control";

    scripts/verify-waku-mcp.py, line 47

    # have been sealed. A task-owned empty .env stops find_dotenv traversal.

    scripts/verify-waku-mcp.py, line 148

    (root / 'workspace/.env').write_text('# Empty synthetic traversal boundary. No secrets.\n')

    crates/mw-cli/src/bin/mw.rs, line 335

    .env("MW_RECORDING", "1")

    crates/mw-cli/src/bin/mw.rs, line 338

    .env("MW_TRANSCRIPT", &transcript_str)

    crates/mw-cli/src/bin/mw.rs, line 601

    .env("MW_RECORDING", "1")

  • 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

    crates/mw-cli/src/bin/mw.rs, line 1

    // mw: automatic whole-session terminal recorder for MemoryWhale.

    src/main.tsx, line 1

    import React from "react";

  • 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 d141a4cec8e5. can delete files. can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host. reads a credential or environment file. 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: d141a4cec8e5bf8603a92ba6951896323dd9b740

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