mcp-server-scaffold SKILL.md skillA

mcp-server-scaffold from jpantsjoha/ai-native-developer-experience is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add jpantsjoha/ai-native-developer-experience/mcp-server-scaffold@git:20260807.c64e31f

Pins git:20260807.c64e31f in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
jpantsjoha/ai-native-developer-experience
Path
skills/mcp-server-scaffold/SKILL.md
Versions recorded
1
Latest version
git:20260807.c64e31f, committed Aug 7, 2026
Size
3,737 bytes
Repository stars
13
License
Apache-2.0

Scaffold and govern an MCP server as a bounded tool seam. Defines which tools the agent may call, enforces the principle that agents call tools and tools call infrastructure. Trigger when adding or reviewing an MCP server in an agent system.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# MCP Server Scaffold

> **Agents call tools. Tools call infrastructure. This boundary is the governance seam. Do not collapse it.**

An MCP server is a contract between an agent and the capabilities it is allowed to use. Its value is not in what it exposes — it is in what it deliberately withholds.

## When to use

- Adding a new MCP server to an agent system
- Reviewing an existing MCP server for scope creep or security gaps
- Deciding which capabilities to expose to an agent (and which to explicitly deny)
- Governing an agent that has been given "too much access"

## Procedure

1. **Define the tool seam** — before writing any server code, list:
   - What capabilities does the agent legitimately need?
   - What capabilities does the underlying system have that the agent must NOT access?
   - What is the minimum viable tool surface?

2. **Author the tool manifest** — for each tool:
   ```
   Tool: <name>
   Description: <one sentence — what it does and when to call it>
   Input schema: <typed fields with constraints>
   Output schema: <typed fields>
   Side effects: <what it changes in the world — none / read-only / write / external-call>
   Auth required: <yes/no and mechanism>
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jpantsjoha/ai-native-developer-experience/mcp-server-scaffold@sha256:3fbfb9ab7c1849e4

The line at the top of this page pins the label git:20260807.c64e31f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_psrbia4dxzqnhtoo.svg)](https://markdownregistry.com/a/art_psrbia4dxzqnhtoo)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Aug 7, 2026.

versioncommittedcommitsizeaudit
git:20260807.c64e31f latest2026-08-07 c64e31f 3,737 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3737 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
  • pass: No script tag

Source

GitHub

jpantsjoha/ai-native-developer-experience · 13 stars · license Apache-2.0 · pushed 2026-10-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_psrbia4dxzqnhtoo
GET https://markdownregistry.com/api/v1/resolve?ref=jpantsjoha/ai-native-developer-experience/mcp-server-scaffold
GET https://markdownregistry.com/api/v1/blob/3fbfb9ab7c1849e42744731bf41d67c4d815fae471ef956136e604c0674010b2

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from jpantsjoha/ai-native-developer-experience

AGENTS.md AGENTS.md file
jpantsjoha/ai-native-developer-experience · AGENTS.md
git:20261016.e93069b · audit A · 13 stars
CLAUDE.md CLAUDE.md file
jpantsjoha/ai-native-developer-experience · CLAUDE.md
git:20261016.e93069b · audit A · 13 stars
adk-expert SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/adk-expert/SKILL.md · Google ADK (Agent Development Kit) orchestration patterns — boundaries, agent composition, and tool seams. Trigger when…
git:20260807.c64e31f · audit A · 13 stars
adversarial-gate SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/adversarial-gate/SKILL.md · JP's signature red-team pass — "how would I break this?" Argue against your own approach before proceeding. Trigger on…
git:20260807.c64e31f · audit A · 13 stars
cloud-checkup SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/cloud-checkup/SKILL.md · Read-only SRE checkup of any GCP project: deterministic probes of the edge, Cloud Run services, 7-day error logs, Cloud…
git:20260914.1704508 · audit A · 13 stars
cloud-expert SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/cloud-expert/SKILL.md · Cloud guardrails for any vendor workload — Google Cloud (GCP, Vertex AI, GKE), AWS (IAM, EKS, Bedrock), Azure (Entra…
git:20260914.d9753e2 · audit A · 13 stars
cost-guardrail SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/cost-guardrail/SKILL.md · LLM and cloud cost awareness — model tiering, token budgets, right-sizing, and when a cheaper model suffices. Trigger…
git:20261016.9a80630 · audit A · 13 stars
cxo-oversight SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/cxo-oversight/SKILL.md · Challenge vision alignment, value, cost, risk and operating ownership at material scope or release decisions.
git:20261016.e93069b · audit A · 13 stars
delivery-orchestrator SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/delivery-orchestrator/SKILL.md · Decompose an epic into atomic parallelizable tasks, route each to the right skill, and keep the four delivery records…
git:20261016.e93069b · audit A · 13 stars
domain-validator SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/domain-validator/SKILL.md · Validate agent output against declared domain rules and ground truth before trusting it downstream. Trigger after any…
git:20260807.c64e31f · audit A · 13 stars
frontend-performance-audit SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/frontend-performance-audit/SKILL.md · Measure real frontend performance — Core Web Vitals (LCP, CLS, INP), page-load traces, CPU and network throttling…
git:20260914.0883cff · audit B · 13 stars
get-it-done SKILL.md skill
jpantsjoha/ai-native-developer-experience · skills/get-it-done/SKILL.md · Pursue an agreed goal to a working outcome without waiting: decompose it, re-prioritise as evidence arrives, branch…
git:20261016.e93069b · audit A · 13 stars

Every file in jpantsjoha/ai-native-developer-experience

Browse by kind, by grade A, or by owner.