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plugin

mcp-server-dev Review findings

Anthropicanthropics/claude-plugins-officialupdated

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Skills for designing and building MCP servers that work seamlessly with Claude, guides you through deployment models (remote HTTP, MCPB, local), tool design patterns, auth, and interactive MCP apps.
Anthropic's own description, from the plugin's files.
DesignEngineeringSecurityplugin
Stars
45,953
Version
v1
Copies
0
OverviewSecurity4Versions1Files22

Overview

holdReview findings

Waxell's checks found 4 findings to review, highest severity high.

Highest severity
high
Findings
4
What ran
Static analysis

A clean result means nothing alarming in what is published, not a guarantee. How the checks work

We don't republish the plugin's instructions. Read them on GitHub at the reviewed commit.

Security

Security scan

Checked 2 days ago

Result

Review findings Waxell's checks found 4 findings to review, highest severity high.

Checked with static analysis: servers it launches, packages it installs at runtime, scripts piped to a shell and bundled binaries. Nothing was run. How the checks work

Findings (4)

high · 4

  • high

    Tells Claude to install unpinned packages (@modelcontextprotocol/sdk, @modelcontextprotocol/ext-apps, zod, express)

    skills/build-mcp-app/SKILL.md:203 · skill_risk:S2

  • high

    Tells Claude to install unpinned packages (@modelcontextprotocol/sdk, zod, express)

    skills/build-mcp-server/references/remote-http-scaffold.md:11 · skill_risk:S2

  • high

    Tells Claude to install unpinned packages (typescript, @types/express, @types/node, tsx)

    skills/build-mcp-server/references/remote-http-scaffold.md:12 · skill_risk:S2

  • high

    Tells Claude to install unpinned packages (fastmcp)

    skills/build-mcp-server/references/remote-http-scaffold.md:84 · skill_risk:S2

Versions

Version history

Each distinct content we have seen, newest first, with the verdict it got at the time.

One version so far: v1, seen 2026-11-03.

Files

Files

22 files, 127 KB in total. Names only; open them on GitHub.

  • .claude-plugin/plugin.json
  • LICENSE
  • README.md
  • skills/build-mcp-app/SKILL.md
  • skills/build-mcp-app/references/abuse-protection.md
  • skills/build-mcp-app/references/apps-sdk-messages.md
  • skills/build-mcp-app/references/directory-checklist.md
  • skills/build-mcp-app/references/iframe-sandbox.md
  • skills/build-mcp-app/references/payload-budgeting.md
  • skills/build-mcp-app/references/widget-templates.md
  • skills/build-mcp-server/SKILL.md
  • skills/build-mcp-server/references/auth.md
  • skills/build-mcp-server/references/deploy-cloudflare-workers.md
  • skills/build-mcp-server/references/elicitation.md
  • skills/build-mcp-server/references/remote-http-scaffold.md
  • skills/build-mcp-server/references/resources-and-prompts.md
  • skills/build-mcp-server/references/server-capabilities.md
  • skills/build-mcp-server/references/tool-design.md
  • skills/build-mcp-server/references/versions.md
  • skills/build-mcpb/SKILL.md
  • skills/build-mcpb/references/local-security.md
  • skills/build-mcpb/references/manifest-schema.md

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