orcaqubits/agentic-commerce-skills-plugins · a2a-multi-agent/skills/a2a-authentication/SKILL.md

a2a-authentication skillA

a2a-authentication is agent-read markdown (skill) from orcaqubits/agentic-commerce-skills-plugins: Implement A2A authentication — API keys, Bearer tokens, OAuth 2.0, OpenID Connect, and mutual TLS. Use when securing agent-to-agent communication and configuring Agent Card security schemes..

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 orcaqubits/agentic-commerce-skills-plugins/a2a-authentication@git:20260309.786511c
Exact content
mdr add orcaqubits/agentic-commerce-skills-plugins/a2a-authentication@sha256:2411bf030d7cf827

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_br5ghw6nll675xyl.svg)](https://markdownregistry.com/a/art_br5ghw6nll675xyl)

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Versions

versioncommittedcommitsizeaudit
git:20260309.786511c latest2026-03-09 786511c 4,511 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 (4511 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

orcaqubits/agentic-commerce-skills-plugins · 39 stars · license MIT · pushed 2026-09-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_br5ghw6nll675xyl
GET https://markdownregistry.com/api/v1/resolve?ref=orcaqubits/agentic-commerce-skills-plugins/a2a-authentication
GET https://markdownregistry.com/api/v1/blob/2411bf030d7cf8270e99d1104cada8f5b0b662d70a4bc74d92efa935b5e556b5

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