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

build-seller-agent skillB

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:20260915.06c685f
Exact content
mdr add adcontextprotocol/adcp-client/build-seller-agent@sha256:f3bcaf21712d3d6d

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_rvnuzyyko5o74kmj.svg)](https://markdownregistry.com/a/art_rvnuzyyko5o74kmj)

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Versions

versioncommittedcommitsizeaudit
git:20260915.06c685f latest2026-09-15 06c685f 14,407 BB view · diff
git:20260818.85f8b352026-08-18 85f8b35 13,444 BB view · diff
git:20260527.09385992026-05-27 0938599 13,337 BB view · diff
git:20260516.099e0772026-05-16 099e077 12,428 BB view · diff
git:20260508.8117e932026-05-08 8117e93 9,790 BB view

Audit of the latest version

B  16 of 17 checks passed. Deterministic, no model, same answer every run.
  • fail: No link to a raw IP address (matched: http://127.0.0.1:3004)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (14407 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 script tag

Source

GitHub

adcontextprotocol/adcp-client · 18 stars · license Apache-2.0 · pushed 2026-09-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_rvnuzyyko5o74kmj
GET https://markdownregistry.com/api/v1/resolve?ref=adcontextprotocol/adcp-client/build-seller-agent
GET https://markdownregistry.com/api/v1/blob/f3bcaf21712d3d6db810e4ae93a777f68f772c9e52c185c47764da5bcada929e