brain-build SKILL.md skillA
brain-build from stuinfla/ruvnet-brain is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add stuinfla/ruvnet-brain/brain-build@git:20260727.720a4bfPins git:20260727.720a4bf in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- stuinfla/ruvnet-brain
- Path
plugin/skills/brain-build/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260727.720a4bf, committed Jul 27, 2026
- First version recorded
- Jul 10, 2026
- Size
- 7,919 bytes
- Repository stars
- 83
- License
- a license file GitHub does not identify
The autonomous build contract, out of the box — "/brain-build <what you want>" activates the disciplined hands-off build power users used to hand-write a standing prompt for. Use when the user says "/brain-build", "brain build", "build this autonomously", "build this hands-off", "loop until it's done", "don't ask me, just build it", or asks for an unattended/self-grading build. Phase-gated per rUv's SPARC, self-verified and self-graded /100 against a per-phase rubric…
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
<!-- Credit: this contract productizes a community field pattern — the 7-rule standing prompt
hand-written by the PR #8 contributor (Eva Draganova, 2026-07-10) to force the brain into
disciplined autonomous building. Her forcing insight: "grade 1-100, no pass under 95 →
forced it to loop and improve." All the machinery existed; this skill removes the 40
hand-written lines needed to activate it. -->
# Brain-Build — the standing contract, activated by one line
`/brain-build <what you want>` means: no human is watching until it's done. Run the whole build
under the contract below. The AUTONOMOUS MODE rules injected by the grounding hook
(`plugin/scripts/ground-ruvnet.sh`) apply in full — this skill carries them even on turns where
that hook doesn't fire.
## 1. Phases — rUv's SPARC, with a rubric per phase
Structure the build as the five SPARC phases with a quality gate between each — rUv's own
convention (phases + gates: `concepts/sparc/CARD/sparc-card`; per-phase docs:
`sparc/specification/README.md`). Gate criteria follow rUv's ruflo-sparc gate checks
(`ruflo/plugins/ruflo-sparc/commands/ruflo-sparc.md`):
| Phase | Rubric (the /100 grade is against THIS) |
…Read the whole file at its exact version.
How to install
mdr add stuinfla/ruvnet-brain/brain-build@sha256:e81c202f308e72bfThe line at the top of this page pins the label git:20260727.720a4bf, 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_uwkpf6u5fi2a253d)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 10, 2026 and Jul 27, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260727.720a4bf latest | 2026-07-27 | 720a4bf | 7,919 B | A | view · diff |
| git:20260710.ca9d602 | 2026-07-10 | ca9d602 | 7,899 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 (7919 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
stuinfla/ruvnet-brain · 83 stars · license a license file GitHub does not identify · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uwkpf6u5fi2a253d GET https://markdownregistry.com/api/v1/resolve?ref=stuinfla/ruvnet-brain/brain-build GET https://markdownregistry.com/api/v1/blob/e81c202f308e72bfb22da37da17cf4b117cf0b83b429a88f976ba94127f50117
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.