Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Better

NONE | GOOD | [BETTER] | BEST

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 52d5b5218a0e, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    lib/download.js, line 80 fs.unlinkSync(tmp);

  • NETWORK_NO_FIXED_HOST Low

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

    scripts/registry-publish.sh, line 36 HTTP=$(curl -sL -o /tmp/mcp-reg-verify.json -w "%{http_code}" \

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    examples/http_smoke.rs, line 90 .env("MCP_BETTER_HTTP_ADDR", addr)

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

    lib/download.js, line 80

    fs.unlinkSync(tmp);

    lib/download.js, line 181

    fs.rmSync(extractRoot, { recursive: true, force: true });

    lib/download.js, line 202

    fs.unlinkSync(archivePath);

    Show more

    lib/download.js, line 206

    fs.rmSync(extractRoot, { recursive: true, force: true });

    lib/download.js, line 211

    fs.unlinkSync(archivePath);

  • 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/registry-publish.sh, line 36

    HTTP=$(curl -sL -o /tmp/mcp-reg-verify.json -w "%{http_code}" \

    scripts/registry-publish.sh, line 40

    [[ "$HTTP" == "200" ]] && echo "✅ Registry live" || echo "⚠️ not 200 yet - retry curl in ~30s"

    scripts/verify-release.sh, line 44

    CRATES=$(curl -sL "https://crates.io/api/v1/crates/mcp-better" -H "User-Agent: pubbetter-verify" \

    Show more

    scripts/verify-release.sh, line 52

    HTTP=$(curl -sL -o /tmp/mcp-reg.json -w "%{http_code}" \

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    examples/http_smoke.rs, line 90

    .env("MCP_BETTER_HTTP_ADDR", addr)

    examples/http_smoke.rs, line 91

    .env("RUST_LOG", "info")

    .gitignore, line 3

    .DS_Store

    Show more

    .gitignore, line 4

    .env

    .gitignore, line 6

    !.env.example

  • 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.

Get the full report on this tool, £49

Note

Hygiene check of commit 52d5b5218a0e. 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: 52d5b5218a0e7360c30f5f4153d15f408557d419

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