Grades are a hygiene check, not a security guarantee.

MCP, MCP server

BoostedTravel

Flight search & booking for AI agents.

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 f01e291f23e4.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV OBFUSCATION_ENCODED_BLOB SECRETS_ENV_READ

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    preview/run.py, line 142 os.remove(cfg_path)

  • NETWORK_NO_FIXED_HOST Low

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

    Model.js, line 1836 // I got this wrong once by checking an anonymous curl payload and concluding

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .dockerignore, line 87 .env

  • OBFUSCATION_ENCODED_BLOB Low

    Contains a long base64 shaped string in a file that should be readable.

    assets/airports.json, line 1 [{"c":"AAA","n":"Anaa","y":"PF","city":0,"u":1,"lat":-17.3526,"lon":-145.51},{"c":"AAB","n":"Arrabury","y":"AU","city":0},{"c":"AAC","n":"El Arish","y":"EG","city":0,"u":1,"lat":31

  • SECRETS_ENV_READ Note

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

    AGENTS.md, line 591 const bt = new LetsFG({ bearerToken: process.env.LETSFG_BEARER_TOKEN });

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

    preview/run.py, line 142

    os.remove(cfg_path)

    preview/run.py, line 300

    os.remove(stale)

    tools/build-ranking.py, line 101

    proc = subprocess.run(cmd, capture_output=True, text=True, shell=(os.name == "nt"))

  • 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

    Model.js, line 1836

    // I got this wrong once by checking an anonymous curl payload and concluding

    sdk/js/src/auth.ts, line 141

    const resp = await fetch(`${DEV_ROOT}/.well-known/oauth-authorization-server`);

    sdk/js/src/auth.ts, line 164

    const resp = await fetch(url, {

    Show more

    sdk/js/src/auth.ts, line 286

    const reg = await fetch(meta.registration_endpoint, {

    sdk/js/src/index.test.ts, line 53

    // sets User-Agent: LetsFG-js/0.1.0. register() builds its own bare fetch()

    sdk/js/src/index.ts, line 5

    * or prepaid Developer API. Zero external JS dependencies. Uses native fetch (Node 18+).

    sdk/js/src/index.ts, line 984

    const resp = await fetch(`${url}/developers/api/v1/agents/register`, {

    sdk/js/src/index.ts, line 1047

    const resp = await fetch(`${this.baseUrl}${path}`, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    AGENTS.md, line 591

    const bt = new LetsFG({ bearerToken: process.env.LETSFG_BEARER_TOKEN });

    preview/run.py, line 137

    token = os.environ.get("LETSFG_BEARER_TOKEN", "").strip()

    .dockerignore, line 87

    .env

    Show more

    preview/run.py, line 146

    expires_at = float(os.environ.get("LETSFG_TOKEN_EXPIRES_AT", "") or (time.time() + 80 * 86400))

    sdk/js/src/auth.test.ts, line 18

    LETSFG_BEARER_TOKEN: process.env.LETSFG_BEARER_TOKEN,

    sdk/js/src/auth.test.ts, line 22

    delete process.env.LETSFG_BEARER_TOKEN;

    sdk/js/src/auth.test.ts, line 40

    process.env.LETSFG_BEARER_TOKEN = '

    sdk/js/src/auth.ts, line 97

    const env = process.env.LETSFG_BEARER_TOKEN;

    sdk/js/src/auth.ts, line 119

    const env = process.env.LETSFG_BEARER_TOKEN;

    .gitignore, line 7

    .env

    docker-compose.yml, line 9

    # With API key (create a .env file first):

    docker-compose.yml, line 10

    # echo "LETSFG_API_KEY=trav_..." > .env

    docs/self-hosting.md, line 236

    # .env

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Concern

    contains an encoded blob in a file that should be readable.

    OBFUSCATION_ENCODED_BLOB

    assets/airports.json, line 1

    [{"c":"AAA","n":"Anaa","y":"PF","city":0,"u":1,"lat":-17.3526,"lon":-145.51},{"c":"AAB","n":"Arrabury","y":"AU","city":0},{"c":"AAC","n":"El Arish","y":"EG","city":0,"u":1,"lat":31

    sdk/python/google_checkout_live_sweep_longhaul_london_us.json, line 58

    "resolved_booking_url": "https://www.google.com/travel/flights/booking?tfs=CBwQAhpfEgoyMDI2LTA2LTI0Ih0KA0xIUhIKMjAyNi0wNi0yNBoDTVNQKgJETDIBOSIgCgNNU1ASCjIwMjYtMDYtMjQaA1NGTyoCREwyB

    sdk/python/google_checkout_live_sweep_longhaul_london_us.json, line 81

    "resolved_booking_url": "https://www.google.com/travel/flights/booking?tfs=CBwQAhpgEgoyMDI2LTA2LTI0Ih8KA0xIUhIKMjAyNi0wNi0yNBoDS0VGKgJGSTIDNDU1Ih8KA0tFRhIKMjAyNi0wNi0yNRoDU0VBKgJGS

    Show more

    sdk/python/google_checkout_live_sweep_results.json, line 323

    "resolved_booking_url": "https://www.google.com/travel/flights/booking?tfs=CBwQAhpfEgoyMDI2LTA2LTI1Ih8KA0JFWRIKMjAyNi0wNi0yNRoDU0FXKgJWRjIDMjYyIh4KA1NBVxIKMjAyNi0wNi0yNRoDQ0RHKgJWR

  • 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 f01e291f23e4. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: f01e291f23e44b712bc0ea207dbf8a6144c110bc

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