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    MCP Server Starter & Safety Kit

    MCP Server Starter & Safety Kit

    by JustHandled Labs

    Scaffold and audit secure MCP servers with input schemas, confirmation gates, and safety-first tool definitions.

    Updated Jun 2026
    Security scanned
    Works with Claude Code

    $29

    · or 145 credits

    30-day refund guarantee

    Secure checkout via Stripe

    Included in download

    • Scaffold TypeScript or Python MCP servers with built-in security middleware.
    • Audit existing MCP tool definitions for injection risks and unsafe patterns.
    • terminal, file_write, file_read automation included
    • Ready for Works with Claude Code
    • Instant install

    Sample input

    I need to build a TypeScript MCP server that can interact with my local SQLite database. Ensure it has safety gates for write operations.

    Sample output

    Generated TypeScript MCP scaffold:

    • Tool 'query_db' (read-only): Strict schema validation enabled.
    • Tool 'update_db' (dangerous): Confirmation gate injected; requires manual approval payload.
    • Security Audit: 0 Critical, 0 High findings.
    • Guardrails: Permission boundaries set to local DB path.

    About This Skill

    Build and Audit Secure MCP Servers

    The Model Context Protocol (MCP) allows AI agents to interact with local tools, but connecting an LLM to your file system or APIs involves significant security risks. The MCP Server Starter Safety Kit provides a production-ready framework for scaffolding and auditing MCP servers with native security guardrails.

    What it does

    This skill automates the creation of high-quality MCP server scaffolds in Python or TypeScript. Beyond simple templating, it acts as a security engineer for your agentic tools, performing heuristic scans and manual audits of tool definitions to ensure they don't perform "jailbreakable" actions without user oversight.

    Key Features

    • Heuristic Scanner: Runs a local read-only scan to detect unsafe patterns in your tool implementations.
    • Confirmation Gates: Automatically injects middleware and logic for dangerous actions (deletes, payments, system resets) that require explicit user approval.
    • Safe Schemas: Generates strict JSON input schemas to prevent prompt injection and unauthorized command execution.
    • Audit Documentation: Produces severity-ranked findings with remediation snippets and verification steps for existing MCP projects.

    Why use this skill?

    Prompting an AI to "write a tool" often results in insecure code with broad permissions. This skill enforces a "security-first" architecture, ensuring your agents operate within strict boundaries and provide clear logging for every action they take. It turns raw scripts into professional, safe, and auditable MCP servers.

    Use Cases

    • Scaffold TypeScript or Python MCP servers with built-in security middleware.
    • Audit existing MCP tool definitions for injection risks and unsafe patterns.
    • Inject confirmation gates for high-risk actions like file deletes or payments.
    • Generate strict JSON schemas for tool inputs to prevent agent hallucinations.
    • Produce severity-ranked security reports for agentic tool repositories.

    Reviews

    No reviews yet - be the first to share your experience.

    Only users who have downloaded or purchased this skill can leave a review.

    Security Scanned

    Passed automated security review

    Permissions

    Terminal / Shell
    Write Files
    Read Files

    File Scopes

    mcp-server-starter-safety-kit/**
    **/*.py
    **/*.ts
    **/*.js
    **/*.json
    **/*.md

    Review is read-only. Scaffolding writes files only after explicit confirmation. The skill installs nothing, transmits nothing, and makes no network calls. Any deploy, install, or live-account action requires confirmation.

    Tags

    mcp-protocol
    security
    typescript
    python
    agent-tools
    devops

    Works with Claude Code, Codex CLI, Cursor, OpenCode/OpenClaw, Gemini CLI, and other agents that load SKILL.md folders. The bundled review scanner uses the Python 3 standard library only and degrades to manual checklist mode when Python or matching files are unavailable.

    Creator

    JustHandled Labs

    JustHandled Labs creates focused agent skills and workflow packs for Claude, Codex, Cursor, and AI-assisted builders. Each tool is designed around a real repeatable task: cleaner commits, better PRs, stronger handoffs, safer repo hygiene, clearer documentation, and less copy-paste chaos. The goal is not generic AI productivity. The goal is specific workflows that are easier to run, review, and repeat. Maintained by H.J. Westerfield, with a background in communications, editing, project coordination, customer support, and practical AI systems. JustHandled Labs builds tools for people who want useful automation without theatrical complexity.

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