challenge SKILL.md skillA
challenge from me2resh/apexyard is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add me2resh/apexyard/challenge@git:20261015.37f5689Pins git:20261015.37f5689 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- me2resh/apexyard
- Path
.claude/skills/challenge/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261015.37f5689, committed Oct 15, 2026
- First version recorded
- Jun 25, 2026
- Size
- 4,862 bytes
- Repository stars
- 542
- License
- MIT
Invoke The Contrarian (Naqid) to steelman-then-challenge an idea, feature, decision, or plan — surfaces assumptions, failure modes, and alternatives. Advisory only; never blocks a gate.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
Writing: read docs/skills/shared/writing-rule.md before you write a durable artifact. # /challenge — Stress-test the premise with The Contrarian `/challenge <target>` spawns the **Contrarian** agent (Naqid) to adversarially challenge an idea *before* you commit build effort to it. It is the premise-level analog of `/code-review` (Rex), `/security-review` (Hakim), and `/design-review` (Tariq) — but where those review **built artifacts** and gate a merge, the Contrarian challenges **whether the idea is right at all** and is **advisory-only**: it never writes a marker, never blocks a gate. The call stays yours. This is the operational tool for the "play devil's advocate" reflex — made a first-class, repeatable move instead of an ad-hoc prompt. ## When to use it - Before writing a spec or filing an epic — pressure-test the idea while it's cheap to change. - Before a big technical decision (`/decide`) — surface the assumptions and the cheaper alternative. - Before committing to a multi-step plan — find the load-bearing assumption that, if wrong, sinks the plan. - Any time you catch yourself agreeing with an idea too easily — that's exactly when an adversary earns its keep. …
Read the whole file at its exact version.
How to install
mdr add me2resh/apexyard/challenge@sha256:aa63c1227a5776a4The line at the top of this page pins the label git:20261015.37f5689, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_c2kovynosq6wkyi4)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 25, 2026 and Oct 15, 2026, about one every 37 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261015.37f5689 latest | 2026-10-15 | 37f5689 | 4,862 B | A | view · diff |
| git:20261008.3d1669c | 2026-10-08 | 3d1669c | 4,922 B | A | view · diff |
| git:20260910.aac255e | 2026-09-10 | aac255e | 4,921 B | A | view · diff |
| git:20260625.1362794 | 2026-06-25 | 1362794 | 4,774 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4862 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
me2resh/apexyard · 542 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_c2kovynosq6wkyi4 GET https://markdownregistry.com/api/v1/resolve?ref=me2resh/apexyard/challenge GET https://markdownregistry.com/api/v1/blob/aa63c1227a5776a41f61bb1d2dad4274c46d8d66bdc7630bd5f54f7eac8f2476
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from me2resh/apexyard
Every file in me2resh/apexyard