nobrainer-rca SKILL.md skillA

nobrainer-rca from nobrainer-tech/nobrainer-tech-flow is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add nobrainer-tech/nobrainer-tech-flow/nobrainer-rca@git:20261102.814dd35

Pins git:20261102.814dd35 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
nobrainer-tech/nobrainer-tech-flow
Path
skills/nobrainer-rca/SKILL.md
Versions recorded
7
Latest version
git:20261102.814dd35, committed Nov 2, 2026
First version recorded
Aug 27, 2026
Size
6,897 bytes
Repository stars
6
License
MIT

Use when an incident, regression, test failure, outage, wrong value or unexpected system behavior has an unclear cause and needs an evidence-bound diagnosis before anyone proposes a fix. Aliases: nb-rca, deep-rca.

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

# NoBrainer Root Cause Analysis

Explain a specific observed failure with a continuous evidence chain. Diagnose
before proposing or implementing a fix. Use the project's maintained debugging
and tracing capabilities for reproduction and hypothesis tests; this skill owns
incident framing, adaptive independent investigation, evidence reconciliation
and a durable RCA verdict.

Do not use for broad code auditing, risk review, or choosing among already-known
solutions. Those are different tasks.

## Investigation contract

Freeze the incident before searching:

```text
SYMPTOM: <literal observation>
EXPECTED: <contract or baseline>
WHEN: <timestamp/window/version>
ENVIRONMENT: <runtime, release, region/account boundary>
REPRODUCTION: REPRODUCIBLE | INTERMITTENT | NOT_REPRODUCED
IMPACT: <users/data/money/availability>
LAST_KNOWN_GOOD: <version/time or UNKNOWN>
FROZEN_INPUTS: <logs, commit, config snapshot, request IDs or UNKNOWN>
WRITE_AUTHORITY: READ_ONLY unless explicitly expanded
```

Ask one focused clarification only when a missing value changes where or how to
investigate. Otherwise mark it `UNKNOWN` and gather evidence. Never put secrets
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add nobrainer-tech/nobrainer-tech-flow/nobrainer-rca@sha256:a03f32888d8b03ba

The line at the top of this page pins the label git:20261102.814dd35, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_htvhvd6itvkej6sf.svg)](https://markdownregistry.com/a/art_htvhvd6itvkej6sf)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 7 versions of this file, between Aug 27, 2026 and Nov 2, 2026, about one every 11 days.

versioncommittedcommitsizeaudit
git:20261102.814dd35 latest2026-11-02 814dd35 6,897 BA view · diff
git:20261028.b89d7ef2026-10-28 b89d7ef 6,350 BA view · diff
git:20261019.285e4212026-10-19 285e421 6,366 BA view · diff
git:20261011.d65ea2c2026-10-11 d65ea2c 6,302 BA view · diff
git:20260910.701279e2026-09-10 701279e 6,199 BA view · diff
git:20260828.711be312026-08-28 711be31 6,194 BA view · diff
git:20260827.955de2a2026-08-27 955de2a 6,168 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (6897 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

nobrainer-tech/nobrainer-tech-flow · 6 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_htvhvd6itvkej6sf
GET https://markdownregistry.com/api/v1/resolve?ref=nobrainer-tech/nobrainer-tech-flow/nobrainer-rca
GET https://markdownregistry.com/api/v1/blob/a03f32888d8b03ba357b021231cb0916c6f9987f41a9bed066732a54033428eb

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.

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