adcontextprotocol/adcp-client · .claude/skills/build-seller-agent/SKILL.md

build-seller-agent skillA

build-seller-agent is agent-read markdown (skill) from adcontextprotocol/adcp-client: Use when building an AdCP seller agent — a publisher, SSP, or retail media network that sells advertising inventory to buyer agents..

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 adcontextprotocol/adcp-client/build-seller-agent@git:20260430.3f82d6f
Exact content
mdr add adcontextprotocol/adcp-client/build-seller-agent@sha256:68b74f76b4531fa8

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_ym25mo3e7tbl5p5d.svg)](https://markdownregistry.com/a/art_ym25mo3e7tbl5p5d)

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Versions

versioncommittedcommitsizeaudit
git:20260430.3f82d6f latest2026-04-30 3f82d6f 37,615 BA view · diff
git:20260428.88e3b022026-04-28 88e3b02 35,722 BA view · diff
git:20260423.42debb02026-04-23 42debb0 35,764 BA view · diff
git:20260419.1037b9d2026-04-19 1037b9d 35,757 BA view · diff
git:20260414.1c693252026-04-14 1c69325 16,281 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 (37615 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

adcontextprotocol/adcp-client · 18 stars · license Apache-2.0 · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ym25mo3e7tbl5p5d
GET https://markdownregistry.com/api/v1/resolve?ref=adcontextprotocol/adcp-client/build-seller-agent
GET https://markdownregistry.com/api/v1/blob/68b74f76b4531fa82267ca67109f6fa61647495208fca387b5027cb886cd913f

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