Rig Challenge SKILL.md skillA
Rig Challenge from borda/ai-rig is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add borda/ai-rig/Rig Challenge@git:20261027.8c1ba9dPins git:20261027.8c1ba9d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- borda/ai-rig
- Path
plugins/opencode-rig/src/resources/skills/rig-challenge/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261027.8c1ba9d, committed Oct 27, 2026
- First version recorded
- Oct 27, 2026
- Size
- 2,824 bytes
- Repository stars
- 31
- License
- Apache-2.0
Run a bounded adversarial convergence loop with independent challengers and a strict-decrease stop rule.
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
# Rig Challenge > Read [Evidence rules](../../references/evidence.md) and [Convergence](../../references/convergence.md). ## Input - Bounded task, exact source paths, and acceptance criteria. - Optional: a prior ledger and its run ID. ## Workflow 1. **Freeze the baseline.** Start a run with `rig_evidence` (`skill: "rig-challenge"`) and record the exact source and acceptance criteria. 2. **Round 1 — independent challenge.** Dispatch `rig-challenger` with the complete source and criteria. The challenger returns structured findings: invariant, counterexample, severity, and file reference. The parent does not challenge its own work. Ensure correctness is covered (the challenger must examine logic/control flow). 3. **Validate.** Check each finding against the source. Record a stable signature: file plus normalized invariant. Use `rig_loop` with `action: "start"` and `reviewer` naming the independent challenger; the baseline round's weighted total is `W0`. 4. **Fix.** Address validated findings only. One writer per path. Refresh the run scope with `rig_evidence` (`action: "refresh"`) after the last fix, then run configured gates. …
Read the whole file at its exact version.
How to install
mdr add borda/ai-rig/Rig Challenge@sha256:fc0e00fec2dce13bThe line at the top of this page pins the label git:20261027.8c1ba9d, 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_uc2yiryqi5pkko5w)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Oct 27, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261027.8c1ba9d latest | 2026-10-27 | 8c1ba9d | 2,824 B | A | view · diff |
| git:20261027.5ca9910 | 2026-10-27 | 5ca9910 | 2,744 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 (2824 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
borda/ai-rig · 31 stars · license Apache-2.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uc2yiryqi5pkko5w GET https://markdownregistry.com/api/v1/resolve?ref=borda/ai-rig/Rig Challenge GET https://markdownregistry.com/api/v1/blob/fc0e00fec2dce13bdeb49a0e953b619fb5afa871cc23203d49beca401439eaee
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.