moonlight-lupin/agent-skills · research/endpoint-probe/SKILL.md

endpoint-probe skillA

endpoint-probe is agent-read markdown (skill) from moonlight-lupin/agent-skills: Use when you need to discover an API's surface — poke a base URL to find its type (REST, GraphQL, SOAP, JSON-RPC), auth scheme, available endpoints, rate limits, and CORS policy. Also probes MCP servers (HTTP and stdio) to discover tools, resources, and prompts with full input schemas. Runs a Python probe script that checks well-known discovery paths (OpenAPI/Swagger, GraphQL introspection, health, .well-known), fingerprints the server, sends OPTIONS for CORS, detects auth from 401/403 responses.

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 moonlight-lupin/agent-skills/endpoint-probe@v1.2.3
Exact content
mdr add moonlight-lupin/agent-skills/endpoint-probe@sha256:8bb7742d6b76ba99

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_cvicfxybl2or63no.svg)](https://markdownregistry.com/a/art_cvicfxybl2or63no)

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Versions

versioncommittedcommitsizeaudit
v1.2.3 latest2026-08-13 73a0ca7 19,311 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (19311 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

moonlight-lupin/agent-skills · 72 stars · license MIT · pushed 2026-09-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_cvicfxybl2or63no
GET https://markdownregistry.com/api/v1/resolve?ref=moonlight-lupin/agent-skills/endpoint-probe
GET https://markdownregistry.com/api/v1/blob/8bb7742d6b76ba9907db9f4ada726e0c40815eb7cbd9129f4adbddd7a4bc7f2d

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