Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Workflow MCP

Workflow MCP runs Claude-compatible JavaScript workflow definitions as durable Codex-backed MCP jobs without requiring Agent Code.

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 25138c25ec29, unchanged since the check below.

SECRETS_PATH_CREDENTIAL

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

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

    install/install.sh, line 71 # authority (e.g. a planted link to ~/.ssh/authorized_keys). Only a real file we wrote, or true

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

    docker/codex-policy-launcher.mjs, line 297

    b),"r");fs.fsyncSync(d);fs.closeSync(d);fs.unlinkSync(b);',

    install/workflow-mcp-docker.ps1, line 481

    fs.unlinkSync(second);

    install/workflow-mcp-docker.ps1, line 484

    for (const path of [first, second]) { try { fs.unlinkSync(path); } catch {} }

  • Install and update

    Note

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

    INSTALL_DOCUMENTED_INSTALLER

    README.md, line 39

    curl -fsSL https://github.com/Juliusolsson05/workflow-mcp/releases/latest/download/install.sh | sh

    docs/CONSUMER_SIMPLIFICATION_PLAN.md, line 50

    curl -fsSL https://github.com/Juliusolsson05/workflow-mcp/releases/latest/download/install.sh | sh

    docs/CONSUMER_SIMPLIFICATION_PLAN.md, line 311

    curl -fsSL https://github.com/Juliusolsson05/workflow-mcp/releases/latest/download/install.sh | sh

    Show more

    install/install.sh, line 4

    # curl -fsSL https://github.com/Juliusolsson05/workflow-mcp/releases/latest/download/install.sh | sh

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    docker/codex-policy-launcher.mjs, line 265

    'const net=require("node:net");const s=net.connect("/run/workflow-mcp/admin.sock");s.setTim

    docker/codex-policy-launcher.mjs, line 365

    'const net=require("node:net");const s=net.connect(+process.argv[2],process.argv[1]);s.setT

    scripts/launcher-smoke.sh, line 235

    curl -fsS http://127.0.0.1:7331/readyz | grep -q '"status":"ready"'

    Show more

    scripts/launcher-smoke.sh, line 236

    curl -fsS http://127.0.0.1:7331/api/v1/instance > "$temporary/web-instance.json"

    scripts/launcher-smoke.sh, line 238

    [ "$(curl -s -o /dev/null -w '%{http_code}' -H 'Host: attacker.example' http://127.0.0.1:7331/api/v1/instance)" = 421 ]

    src/cli/main.ts, line 61

    const readiness = await fetch(`http://127.0.0.1:${config.port}/readyz`, {

    src/cli/main.ts, line 281

    const response = await fetch(`http://127.0.0.1:${config.port}/readyz`, {

    src/client/apiClient.ts, line 285

    response = await this.#fetch(`${this.#baseUrl}${path}`, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    docker/codex-policy-launcher.mjs, line 200

    const configuredCredential = process.env.WORKFLOW_MCP_OPENAI_API_KEY_FILE

    docker/codex-policy-launcher.mjs, line 240

    process.env.WORKFLOW_MCP_OPENAI_API_KEY_FILE,

    install/install.sh, line 71

    # authority (e.g. a planted link to ~/.ssh/authorized_keys). Only a real file we wrote, or true

    Show more

    src/cli/main.ts, line 292

    tokenFile: process.env.WORKFLOW_MCP_MCP_TOKEN_FILE ?? join(config.dataDirectory, 'secrets', 'mcp.token'),

    docker/Dockerfile.dockerignore, line 13

    *.tgz

    docker/Dockerfile.dockerignore, line 14

    .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.

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Note

Hygiene check of commit 25138c25ec29. can delete files. README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell. 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: 25138c25ec29d5dbaf67cd680e440ff600d021a5

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