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Agentic Mcp Server Builder

cross-platform ⚠ suspicious
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Install in OpenClaw
/install agentic-mcp-server-builder
Description
Scaffold MCP server projects and baseline tool contract checks. Use for defining tool schemas, generating starter server layouts, and validating MCP-ready st...
README (SKILL.md)

Agentic MCP Server Builder

Overview

Create a minimal MCP server scaffold and contract summary from a structured tool list.

Workflow

  1. Define server name and tool list with descriptions.
  2. Generate scaffold file map and tool contract summary.
  3. Optionally materialize starter files when not in dry-run mode.
  4. Review generated contract checks before adding business logic.

Use Bundled Resources

  • Run scripts/scaffold_mcp_server.py to generate starter artifacts.
  • Read references/mcp-scaffold-guide.md for file layout and contract checks.

Guardrails

  • Keep tool boundaries explicit and minimal.
  • Include deterministic outputs and clear input/output schemas.
Usage Guidance
This skill appears coherent for scaffolding MCP servers. Before running: 1) run with --dry-run to verify the generated file map and output (no writes); 2) confirm the scaffold_root and output paths are correct and back up any important files (the script will overwrite existing files); 3) avoid passing --allow-outside-workspace unless you explicitly trust the input and destination, since that allows writing outside the current directory; 4) inspect any input JSON you provide and the generated artifacts locally — the tool does not perform network calls or access credentials, so risks are limited to local file writes and accidental overwrites.
Capability Analysis
Type: OpenClaw Skill Name: agentic-mcp-server-builder Version: 0.1.0 The `scripts/scaffold_mcp_server.py` script contains a significant arbitrary file write vulnerability. The `--allow-outside-workspace` flag, when enabled, allows the `scaffold_root` parameter (controlled by the input payload) to resolve to any path on the filesystem, bypassing workspace restrictions. Although the content written to these files is generic and not inherently malicious (e.g., '# Starter file'), the ability to write to arbitrary locations (e.g., system directories like `/etc` or sensitive user directories) poses a severe security risk, enabling potential denial-of-service, data corruption, or privilege escalation if combined with other vulnerabilities.
Capability Assessment
Purpose & Capability
Name/description (scaffold MCP servers and contract checks) align with the included script and docs. The script reads a JSON payload describing tools and generates a file map and starter files — this is exactly what a scaffolder would need to do.
Instruction Scope
SKILL.md confines the agent to run the provided script and read the included guide. The script only reads a local JSON input and writes local scaffold files. Note: SKILL.md suggests materializing files when not in dry-run mode, so follow guardrails to use --dry-run first.
Install Mechanism
No install spec is provided and the skill only includes a small Python script and markdown references. There is no download-from-URL or package installation step.
Credentials
The skill requests no environment variables, no credentials, and the script does not read environment variables or external config paths. There are no secrets or external API keys involved.
Persistence & Privilege
always is false and the skill is user-invocable. The script writes scaffold files into a scaffold_root under the current workspace by default; it can be allowed to write outside the workspace only if the --allow-outside-workspace flag is passed. The script will overwrite existing files without prompting.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install agentic-mcp-server-builder
  3. After installation, invoke the skill by name or use /agentic-mcp-server-builder
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.1.0
Initial release of agentic-mcp-server-builder. - Scaffolds minimal MCP server projects from structured tool lists. - Generates baseline tool contract summaries and starter file maps. - Supports dry-run and file materialization modes. - Provides resources for recommended project layout and contract validation. - Enforces clear schema definitions and explicit tool boundaries.
Metadata
Slug agentic-mcp-server-builder
Version 0.1.0
License
All-time Installs 13
Active Installs 10
Total Versions 1
Frequently Asked Questions

What is Agentic Mcp Server Builder?

Scaffold MCP server projects and baseline tool contract checks. Use for defining tool schemas, generating starter server layouts, and validating MCP-ready st... It is an AI Agent Skill for Claude Code / OpenClaw, with 1403 downloads so far.

How do I install Agentic Mcp Server Builder?

Run "/install agentic-mcp-server-builder" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Agentic Mcp Server Builder free?

Yes, Agentic Mcp Server Builder is completely free (open-source). You can download, install and use it at no cost.

Which platforms does Agentic Mcp Server Builder support?

Agentic Mcp Server Builder is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Agentic Mcp Server Builder?

It is built and maintained by Muhammad Mazhar Saeed (@0x-professor); the current version is v0.1.0.

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