nota-america/forgecat-agent-profiles · profiles/anthropics/claude-plugins-official/anthropics_claude-plugins-official_mcp-server-dev/for-forgecat/skills/build-mcp-app/SKILL.md

build-mcp-app skillB

build-mcp-app is agent-read markdown (skill) from nota-america/forgecat-agent-profiles: This skill should be used when the user wants to build an "MCP app", add "interactive UI" or "widgets" to an MCP server, "render components in chat", build "MCP UI resources", make a tool that shows a "form", "picker", "dashboard" or "confirmation dialog" inline in the conversation, or mentions "apps SDK" in the context of MCP. Use AFTER the build-mcp-server skill has settled the deployment model, or when the user already knows they want UI widgets..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add nota-america/forgecat-agent-profiles/build-mcp-app@v0.1.0
Exact content
mdr add nota-america/forgecat-agent-profiles/build-mcp-app@sha256:e30e4a1090485320

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ndkpeqe3zwwutqkp.svg)](https://markdownregistry.com/a/art_ndkpeqe3zwwutqkp)

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Versions

versioncommittedcommitsizeaudit
v0.1.0 latest2026-06-10 c645100 16,447 BB view

Audit of the latest version

B  16 of 17 checks passed. Deterministic, no model, same answer every run.
  • fail: No script tag (matched: <script)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (16447 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address

Source

GitHub

nota-america/forgecat-agent-profiles · 72 stars · license Apache-2.0 · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ndkpeqe3zwwutqkp
GET https://markdownregistry.com/api/v1/resolve?ref=nota-america/forgecat-agent-profiles/build-mcp-app
GET https://markdownregistry.com/api/v1/blob/e30e4a1090485320a13301a1294c3a16bfa62195ab1f2c22550cb4caa995a4e0

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.