Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Nyx5

Mail and ledger for AI agents, in a single piece. An agent gets three things it has no other way of getting: an address of its own (agent@domain), a mailbox that holds while it is switched off, and a ledger where an agreement carries weight — payment is held un

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. Only try it in a sandbox.

Graded by PlugVetRubric v2

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

Rescanned at commit 557689d5c465, unchanged since the check below.

SECRETS_PATH_CREDENTIAL OBFUSCATION_ENCODED_BLOB OBFUSCATION_MINIFIED_PAYLOAD

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

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

    CLAUDE.md, line 262 - Nicholas ya tiene su llave `~/.ssh/id_ed25519_personal.pub` registrada en GitHub **como Signing

  • OBFUSCATION_ENCODED_BLOB Medium

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

    src/plataformas/iconos.js, line 3 180: 'iVBORw0KGgoAAAANSUhEUgAAALQAAAC0CAIAAACyr5FlAAABpklEQVR42u3bwQ2AMBADwashtdMCdYYG+AKWGbQVRPOyjlnnId02nkBwCA7BITgEh+AQHIJDcAgOCQ7BITgEh+AQHIJDcAgOwSHBITgEh+AQHIJDcAgOwSE4JDgEh+

  • OBFUSCATION_MINIFIED_PAYLOAD Medium

    Contains a very long line with almost no spaces in a script or style file.

    src/plataformas/iconos.js, line 3 180: 'iVBORw0KGgoAAAANSUhEUgAAALQAAAC0CAIAAACyr5FlAAABpklEQVR42u3bwQ2AMBADwashtdMCdYYG+AKWGbQVRPOyjlnnId02nkBwCA7BITgEh+AQHIJDcAgOCQ7BITgEh+AQHIJDcAgOwSHBITgEh+AQHIJDcAgOwSE4JDgEh+

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

    scripts/build-mcpb.mjs, line 30

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

    scripts/revision-adversarial.mjs, line 250

    return { casa, url, adminToken: 'revision', cerrar: async () => { await casa.stop(); fs.rmSync(tmp, { recursive: true, force: true }); } };

    src/nucleo/almacen.js, line 105

    removeJob(id) { const p = path.join(this.dir, 'queue', `${id}.json`); if (fs.existsSync(p)) fs.unlinkSync(p); }

    Show more

    src/nucleo/almacen.js, line 143

    fs.unlinkSync(p);

    src/nucleo/almacen.js, line 153

    kvDelete(ns, key) { const p = this._kvPath(ns, key); if (fs.existsSync(p)) fs.unlinkSync(p); }

    src/nucleo/almacen.js, line 178

    if (r?.expires != null && r.expires <= nowMs) fs.unlinkSync(p);

  • 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 www.nyx5.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    e2e-produccion.mjs, line 14

    (base, token, welcome) => (await (await fetch(`${base}/invitations`, { method: 'POST',

    e2e-produccion.mjs, line 41

    const topup = await fetch(`https://${CASA}/libro/topup`, { method:

    e2e-produccion.mjs, line 66

    const r = await fetch(`https://${CASA}/index/houses`, { method: 'POST', headers: { 'content-type': 'application/json' }, body: JSON.stringify({ domain: d }) });

    Show more

    bin/nyx5.js, line 103

    const jw = await (await fetch(`${dcw._estafeta}/tareas`)).json();

    bin/nyx5.js, line 155

    const res = await fetch(`${dc._estafeta}/tareas`);

    bin/nyx5.js, line 167

    const j = await (await fetch(`${dc._estafeta}/tareas`)).json();

    bin/nyx5.js, line 202

    const res = await fetch(`${dc._estafeta}/agents/${encodeURIComponent(local)}/historial`);

    bin/nyx5.js, line 243

    const res = await fetch(`${need('estafeta')}/invitations`, { met

    demo/spam.js, line 18

    const res = await fetch('http://127.0.0.1:4002/inbound', { method: 'POST', headers: { 'content-type': 'application/json' }, body: JSON.stringify(env) });

    scripts/auditar-produccion.sh, line 13

    p "HEAD /" "$(curl -s -o /dev/null -w '%{http_code}' -I https://nyx5.com/)" 200

    scripts/auditar-produccion.sh, line 15

    p "http -> https (301)" "$(curl -s -o /dev/null -w '%{http_code}' http://nyx5.com/)" 301

    scripts/auditar-produccion.sh, line 23

    red=$(curl -s --max-time 12 https://nyx5.com/x402/supported | grep -o '"network":"[^"]*"' | head -1 | cut -d'"' -f4)

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    e2e-produccion.mjs, line 3

    // Uso: node --env-file=.env e2e-produccion.mjs

    e2e-produccion.mjs, line 8

    const T1 = (process.env.NYX5_ADMIN_TOKEN || process.env.CHASQUI_ADMIN_TOKEN);

    CLAUDE.md, line 262

    - Nicholas ya tiene su llave `~/.ssh/id_ed25519_personal.pub` registrada en GitHub **como Signing

    Show more

    e2e-produccion.mjs, line 9

    const T2 = (process.env.NYX5_BETA_ADMIN_TOKEN || process.env.CHASQUI_BETA_ADMIN_TOKEN);

    e2e-produccion.mjs, line 10

    if (!T1 || !T2) throw new Error('faltan tokens en .env');

    bin/nyx5.js, line 213

    adminToken: o['admin-token'] || (process.env.NYX5_ADMIN_TOKEN || process.env.CHASQUI_ADMIN_TOKEN) || need('admin-token'),

    bin/nyx5.js, line 239

    ster({ adminToken: o['admin-token'] || (process.env.NYX5_ADMIN_TOKEN || process.env.CHASQUI_ADMIN_TOKEN), in

    bin/nyx5.js, line 243

    ization: `Bearer ${o['admin-token'] || (process.env.NYX5_ADMIN_TOKEN || process.env.CHASQUI_ADMIN_TOKEN)}` }

    bin/nyx5.js, line 297

    ization: `Bearer ${o['admin-token'] || (process.env.NYX5_ADMIN_TOKEN || process.env.CHASQUI_ADMIN_TOKEN)}` }

    demo/edge-local.mjs, line 24

    NYX5_ADMIN_TOKEN: process.env.NYX5_ADMIN_TOKEN || 'local',

    demo/edge-local.mjs, line 28

    NYX5_VAULT_KEY: process.env.NYX5_VAULT_KEY || crypto.randomBytes(32).toString('base64'),

    scripts/revision-ideas/a2-from-falso.mjs, line 13

    const env2 = { ...env, signature: { ...env.signature, kid: (await store.getAgent('nicholas')).sig } };

    .gitignore, line 1

    .env

    CLAUDE.md, line 266

    `git config user.signingkey ~/.ssh/id_ed25519_personal.pub`, y commitear con `-S`.

    CLAUDE.md, line 273

    `gpg.format=ssh`, `user.signingkey=~/.ssh/id_ed25519_personal.pub`, `commit.gpgsign=true`,

    CLAUDE.md, line 372

    secret `NYX5_VAULT_KEY` (copia en `.env` para poder recuperarla; perderla obliga a re-autorizar

  • 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. contains a minified payload.

    OBFUSCATION_ENCODED_BLOB OBFUSCATION_MINIFIED_PAYLOAD

    src/plataformas/iconos.js, line 3

    180: 'iVBORw0KGgoAAAANSUhEUgAAALQAAAC0CAIAAACyr5FlAAABpklEQVR42u3bwQ2AMBADwashtdMCdYYG+AKWGbQVRPOyjlnnId02nkBwCA7BITgEh+AQHIJDcAgOCQ7BITgEh+AQHIJDcAgOwSHBITgEh+AQHIJDcAgOwSE4JDgEh+

    src/plataformas/iconos.js, line 3

    180: 'iVBORw0KGgoAAAANSUhEUgAAALQAAAC0CAIAAACyr5FlAAABpklEQVR42u3bwQ2AMBADwashtdMCdYYG+AKWGbQVRPOyjlnnId02nkBwCA7BITgEh+AQHIJDcAgOCQ7BITgEh+AQHIJDcAgOwSHBITgEh+AQHIJDcAgOwSE4JDgEh+

    src/plataformas/iconos.js, line 4

    192: 'iVBORw0KGgoAAAANSUhEUgAAAMAAAADACAIAAADdvvtQAAAByUlEQVR42u3byw0AEBBAQTWoXQvq5O4ikfiPvAqY02aFmJM0XHAFAkgACSABJAEkgASQAJIAEkACSABJAAkgASSAJIAEkAASQAJIAkgACSABJAEkgASQAJIAEkACSA

    Show more

    src/plataformas/iconos.js, line 4

    192: 'iVBORw0KGgoAAAANSUhEUgAAAMAAAADACAIAAADdvvtQAAAByUlEQVR42u3byw0AEBBAQTWoXQvq5O4ikfiPvAqY02aFmJM0XHAFAkgACSABJAEkgASQAJIAEkACSABJAAkgASSAJIAEkAASQAJIAkgACSABJAEkgASQAJIAEkACSA

    src/plataformas/iconos.js, line 5

    512: 'iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAI2ElEQVR42u3VURFFIQhAQTOY3QrmxAr+OKLsnS3wgOdpfQ4ACmpGACAAAAgAAAIAgAAAIAAACAAAAgCAAAAgAAAIAAACAIAAACAAAAgAAAIAgAAAIAAACAAAAgCAAA

    src/plataformas/iconos.js, line 5

    512: 'iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAI2ElEQVR42u3VURFFIQhAQTOY3QrmxAr+OKLsnS3wgOdpfQ4ACmpGACAAAAgAAAIAgAAAIAAACAAAAgCAAAAgAAAIAAACAIAAACAAAAgAAAIAgAAAIAAACAAAAgCAAA

    src/plataformas/og-png.js, line 2

    export const OG_PNG_B64 = "iVBORw0KGgoAAAANSUhEUgAABLAAAAJ2CAIAAADAIuwLAAAYuUlEQVR42u3dMU4dSxCGURZA4IVfiQWQeIGIiBxyZFmDPd1df9WRTvpsZqampz4Hj6fn518AAAAM9OQWAAAACEIAAAAEIQAAAIIQAAAAQ

    src/plataformas/og-png.js, line 2

    export const OG_PNG_B64 = "iVBORw0KGgoAAAANSUhEUgAABLAAAAJ2CAIAAADAIuwLAAAYuUlEQVR42u3dMU4dSxCGURZA4IVfiQWQeIGIiBxyZFmDPd1df9WRTvpsZqampz4Hj6fn518AAAAM9OQWAAAACEIAAAAEIQAAAIIQAAAAQ

  • 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 557689d5c465. can delete files. can reach a host that is not written as a fixed address. can reach www.nyx5.com. The description does not name that host. reads a credential or environment file. contains an encoded blob in a file that should be readable. contains a minified payload.

Date and source

Date checked:

View source

github.com

Commit graded: 557689d5c4652746e7a93e68b996b1a59d0b296b

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