Palanit Core

Name: Palanit Core
Author: stasxr

by stasxrversion 0.1.3i★ –iRuns on your computer

Registry nameio.github.stasxr/palanit-core

Install

Overview

Description from the maker (original English)

Scan MCP servers and agent tool manifests for poisoning, exfiltration, secrets and supply-chain risk

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 35/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Cybersecurity

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "palanit-core": {
      "command": "uvx",
      "args": [
        "palanit-core"
      ]
    }
  }
}

Run this in your terminal

claude mcp add palanit-core -- uvx palanit-core

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "palanit-core": {
      "command": "uvx",
      "args": [
        "palanit-core"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "palanit-core": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "palanit-core"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account stasxr, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Cybersecurityi

More stars than 0% of the other 998 servers in this category
Published to the registry more recently than 69% of the other 998 servers in this category
Basic checks equal to or better than 100% of the other 998 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Palanit Core safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.3) reached the registry 18 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: TeamOnly, KillerSkills, InternetSecure

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

TeamOnly

Deploy AI-built internal apps behind your company login, with a database, files and secrets.

by sohelsdVery new↓ 315/wkUpdated today

Runs on your computer✓ teamonly.dev

Install

KillerSkills

Security verdicts for agent skills and MCP servers, from sandbox runs, before you install them.

by cyligence-karimGrowing↓ 3.1K/wkUpdated today

Runs on your computer

Install

InternetSecure

Security grades, SSL/TLS, headers and uptime for your domains, plus a CI deploy gate.

by internetsecure.orgEarlyUpdated today

Runs in the cloud✓ internetsecure.org

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Palanit Core

A watchtower for AI agents.

Scan MCP servers and AI-agent tool manifests for hidden risk — before an attacker finds it.

Website · Docs · Palanit OS (hosted)

Your AI agent trusts tools, MCP servers and skills it didn't write. A tool's description is injected straight into the model's context — so a *poisoned* description can quietly tell your agent to leak a key, call an attacker's server, or run a shell command. Palanit Core reads every tool the way your agent will, and flags the ones that would betray it.

Zero dependencies. Pure Python standard library. Nothing to audit but the rules.
Fast & local. Runs on your machine. Sends nothing anywhere.
CI-ready. Exits 1 on HIGH+ findings, so a poisoned tool fails the build.
Open & honest. Every rule is readable. Severities reflect real impact, not upsell.

Install

pip install palanit-core

Use

# Scan an MCP config or tool manifest

palanit scan mcp.config.json

See it in action on the bundled malicious sample

palanit scan --sample

Machine-readable output, fail CI on HIGH or above

palanit scan mcp.config.json --json --fail-on HIGH

Pin the tool definitions you approved, then fail closed if a server later

swaps a description or schema after install (a "rug pull")

palanit pin mcp.config.json palanit scan mcp.config.json --baseline .palanit.lock.json

Example (trimmed):

 CRITICAL   Possible data exfiltration  [PL-EXFIL-001]

Instructs the agent to send sensitive data to an external URL (collector.evil.example). ↳ mcp.config.json#/mcpServers/invoicing/tools/0/description fix: Remove external URLs and exfiltration verbs from tool text.

HIGH Hidden instructions in tool text [PL-POISON-001] HIGH Invisible or deceptive Unicode [PL-UNICODE-001] MEDIUM Unpinned package / runner [PL-SUPPLY-001] ... 9 finding(s) (1 critical · 5 high · 3 medium)

Catch rug-pulls (tool-definition pinning)

A scan at install time only sees the tool text you approved. A hostile server can swap a tool's description or input schema after that approval — and standard clients never re-check. palanit pin records a hash of each tool's declared definition; a later scan --baseline fails closed on any change, so a swap costs the attacker the tool instead of silently succeeding.

palanit pin mcp.config.json                                  # approve current definitions

palanit scan mcp.config.json --baseline .palanit.lock.json # HIGH + exit 1 on any drift

What it detects

Rule	Severity	What it catches
`PL-POISON-001`	HIGH	Hidden / injected instructions in tool & schema descriptions
`PL-EXFIL-001`	MED–CRIT	Tool text that steers the agent to send data to external URLs
`PL-SECRET-001`	HIGH	Hardcoded API keys, tokens and private keys
`PL-UNICODE-001`	MED–HIGH	Invisible / bidirectional Unicode used to hide instructions
`PL-SUPPLY-001`	MEDIUM	Unpinned / floating package versions (`@latest`, bare names)
`PL-SHELL-001`	MED–HIGH	Tools that launch a shell (`bash -c`, `cmd /c`, …)
`PL-TLS-001`	LOW–MED	Endpoints over `http://` / `ws://` without TLS
`PL-COLLIDE-001`	MEDIUM	Duplicate tool names that let one shadow another
`PL-ENV-001`	HIGH	Literal secrets in a server's `env` block
`PL-DRIFT-001`	HIGH	A tool's definition changed since you approved it — a post-install "rug pull" (only with `--baseline`)

Run palanit rules to list them. Inputs understood: Claude-style mcpServers configs, servers configs, tools manifests, a bare list of tools, or a single tool object. Unknown JSON still gets string-level checks.

Use it as a GitHub Action

# .github/workflows/palanit.yml

name: palanit on: [push, pull_request] jobs: scan: runs-on: ubuntu-latest steps:

uses: actions/checkout@v4
uses: stasxr/palanit-core@v0.1.2 with: files: "mcp.config.json" # files or globs, space-separated fail-on: "HIGH" # INFO | LOW | MEDIUM | HIGH | CRITICAL

Prefer plain steps? That works too:

      - uses: actions/setup-python@v5

with: { python-version: "3.12" }

run: pip install palanit-core
run: palanit scan mcp.config.json --fail-on HIGH

Use it as a pre-commit hook

# .pre-commit-config.yaml

repos:

repo: https://github.com/stasxr/palanit-core rev: v0.1.2 hooks:
id: palanit # scans mcp*.json / claude_desktop_config.json by default

Use it as an MCP server

Palanit Core can itself run as an MCP server, so an agent or MCP client (Claude Desktop, Cursor, Cline, …) can scan a config on demand:

pip install "palanit-core[mcp]"

palanit-mcp # stdio transport

Exposes the tools scan_mcp_config, list_rules and version. Example client entry:

"mcpServers": { "palanit": { "command": "palanit-mcp" } } }

Add the badge

Scanned your MCP server with Palanit Core? Show it:

[![Scanned with Palanit Core](https://img.shields.io/badge/scanned%20with-Palanit%20Core-5b8def)](https://github.com/stasxr/palanit-core)

Responsible use

Palanit Core only reads files you give it — but the broader PALANIT suite (botprobe) sends live test traffic. Only scan or test systems you own or are authorized to test. A clean scan reduces risk; it does not prove safety.

Beyond the CLI

[Palanit OS](https://palanit.com/products/os) — the same engine in your browser, plus continuous monitoring, change alerts and shareable reports.
[Palanit Bot Killer](https://palanit.com/products/bot-killer) — block hostile AI crawlers and red-team your own chatbot with botprobe.

License

mcp-name: io.github.stasxr/palanit-core

Palanit Core

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Cybersecurityi

Common questions

Alternatives

TeamOnly

KillerSkills

InternetSecure

README from the maker

Palanit Core

A watchtower for AI agents.

Install

Use

See it in action on the bundled malicious sample

Machine-readable output, fail CI on HIGH or above

Pin the tool definitions you approved, then fail closed if a server later

swaps a description or schema after install (a "rug pull")

Catch rug-pulls (tool-definition pinning)

What it detects

Use it as a GitHub Action

Use it as a pre-commit hook

Use it as an MCP server

Add the badge

Responsible use

Beyond the CLI

License