add-mcp-server SKILL.md skillA
add-mcp-server from stacklok/toolhive-catalog is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add stacklok/toolhive-catalog/add-mcp-server@git:20260630.d62bac1Pins git:20260630.d62bac1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- stacklok/toolhive-catalog
- Path
.claude/skills/add-mcp-server/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260630.d62bac1, committed Jun 30, 2026
- First version recorded
- Feb 24, 2026
- Size
- 6,914 bytes
- Repository stars
- 23
- License
- Apache-2.0
Add new MCP server entries to the ToolHive registry. Creates server.json and icon.svg files with correct schema, _meta extensions, and validation. Use when adding a server, creating a registry entry, onboarding an MCP server, or writing server.json. NOT for reviewing existing entries (use mcp-review).
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
# Add MCP Server to ToolHive Registry
Each entry is a `server.json` file in `registries/toolhive/servers/<name>/` following the
[MCP ServerJSON schema](https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json)
with ToolHive extensions in `_meta`.
## Workflow
1. **Determine type**: Docker/OCI image → Container (`packages`). HTTP endpoint → Remote (`remotes`).
2. **Choose name**: lowercase, numbers, hyphens only. Append `-remote` for remote variants.
3. **Create directory**: `mkdir -p registries/toolhive/servers/<name>`
4. **Gather info** if needed: fetch README/docs for tools, transport, env vars, auth.
5. **Create `icon.svg`**: service logo, simple, standard SVG format.
6. **Create `server.json`**: use templates below.
7. **Validate**: `task catalog:validate && task catalog:build`
## Minimal Container Template
```json
{
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"name": "io.github.stacklok/<server-name>",
"description": "Clear, concise one-line description",
"title": "<Human-Readable Title>",
"repository": {
"url": "https://github.com/org/repo",
"source": "github"
},
"version": "1.0.0",
…Read the whole file at its exact version.
How to install
mdr add stacklok/toolhive-catalog/add-mcp-server@sha256:69432499a70de785The line at the top of this page pins the label git:20260630.d62bac1, 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.
[](https://markdownregistry.com/a/art_fcavg2wnzz5iypku)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Feb 24, 2026 and Jun 30, 2026, about one every 63 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260630.d62bac1 latest | 2026-06-30 | d62bac1 | 6,914 B | A | view · diff |
| git:20260603.8ac39de | 2026-06-03 | 8ac39de | 6,955 B | A | view · diff |
| git:20260224.e256def | 2026-02-24 | e256def | 6,784 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6914 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
stacklok/toolhive-catalog · 23 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fcavg2wnzz5iypku GET https://markdownregistry.com/api/v1/resolve?ref=stacklok/toolhive-catalog/add-mcp-server GET https://markdownregistry.com/api/v1/blob/69432499a70de785d099ef364efe874124362a603acf90e4c7161701ce95cbb2
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.