kajisho5/ffmpeg-skill · .claude/skills/verifying-external-behavior/SKILL.md

verifying-external-behavior skillA

verifying-external-behavior is agent-read markdown (skill) from kajisho5/ffmpeg-skill: Confirms what a third-party library, remote API, build backend, or scraped document actually does before writing code that depends on it — throwaway probes that run in seconds, permissive clients that forward wrong arguments instead of rejecting them, per-endpoint docs that don't generalize, response shapes that make a "fast path" always-false, fakes that encode your assumption rather than the service's behavior, and dry-runs that skip the step that fails. Use when integrating a new dependency o.

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 kajisho5/ffmpeg-skill/verifying-external-behavior@git:20260906.24c1610
Exact content
mdr add kajisho5/ffmpeg-skill/verifying-external-behavior@sha256:212ee8a1246a05ef

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_vrnpgcokzg6u33oi.svg)](https://markdownregistry.com/a/art_vrnpgcokzg6u33oi)

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Versions

versioncommittedcommitsizeaudit
git:20260906.24c1610 latest2026-09-06 24c1610 10,913 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 (10913 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

kajisho5/ffmpeg-skill · 321 stars · license MIT · pushed 2026-09-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_vrnpgcokzg6u33oi
GET https://markdownregistry.com/api/v1/resolve?ref=kajisho5/ffmpeg-skill/verifying-external-behavior
GET https://markdownregistry.com/api/v1/blob/212ee8a1246a05ef580820ff7d759f83c81ec235b6a2f73a7d6c08e007b12671