Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Callsign Server

Callsign Server, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade C

One Medium finding. Read the report before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

SECRETS_PATH_CREDENTIAL

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

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

    cli/src/scrub.ts, line 44 /(^|\/)(\.env(\.[\w-]+)?|\.npmrc|\.netrc|id_(rsa|ed25519|ecdsa)|[^/]+\.(pem|key|p12|pfx)|credentials(\.json)?)$/i;

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

    Pass

    No shell or command execution found, and no extra permission was declared.

  • 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. can reach awscli.amazonaws.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    cli/src/api.ts, line 41

    const res = await fetch(new URL(path, baseUrl), {

    infra/aws-ec2/bootstrap.sh, line 34

    curl -fsSL "https://awscli.amazonaws.com/awscli-exe-linux-$(uname -m).zip" -o /tmp/awscliv2.zip

    src/domain/email-inbound.ts, line 35

    const res = await fetch(`${config.RESEND_API_URL}${path}`, {

    Show more

    src/domain/email-inbound.ts, line 110

    const res = await fetch(attachment.download_url, {

    src/http/routes/mcp.ts, line 56

    return handler.fetch(c.req.raw, {

    src/lib/telegram.ts, line 18

    const res = await fetch(`${config.TELEGRAM_API_URL}/bot${config.TELEGRAM_BOT_TOKEN}/${method}`, {

    docker-compose.yml, line 82

    "fetch('http://localhost:8080/healthz').then((r) => process.exit(r.ok ? 0 : 1)).catch(() => process.exit(1))",

    infra/aws-ec2/release/compose.yaml, line 58

    "fetch('http://localhost:8080/healthz').then((r) => process.exit(r.ok ? 0 : 1)).catch(() => process.exit(1))",

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    cli/src/cli.ts, line 66

    const key = token ?? process.env.CALLSIGN_TOKEN ?? saved?.token;

    cli/src/cli.ts, line 91

    const key = token ?? process.env.CALLSIGN_TOKEN;

    cli/src/scrub.ts, line 44

    /(^|\/)(\.env(\.[\w-]+)?|\.npmrc|\.netrc|id_(rsa|ed25519|ecdsa)|[^/]+\.(pem|key|p12|pfx)|credentials(\.json)?)$/i;

    Show more

    cli/src/cli.ts, line 132

    const token = values.token ?? process.env.CALLSIGN_TOKEN;

    infra/aws-ec2/release/deploy.sh, line 22

    --query Parameter.Value --output text > "$app_dir/.env.next"

    infra/aws-ec2/release/deploy.sh, line 23

    printf "IMAGE='%s'\n" "$image" >> "$app_dir/.env.next"

    infra/aws-ec2/release/deploy.sh, line 24

    mv "$app_dir/.env.next" "$app_dir/.env"

    .dockerignore, line 6

    test

    .dockerignore, line 7

    .env

    .gitignore, line 2

    coverage

    .gitignore, line 3

    .env

  • 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 66aa79b6d4f0. can reach a host that is not written as a fixed address. can reach awscli.amazonaws.com. The description does not name that host. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 66aa79b6d4f0d1e078e5618975746ef5394f7887

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