umputun/cc-thingz · plugins/thinking-tools/skills/root-cause-investigator/SKILL.md

root-cause-investigator skillA

root-cause-investigator is agent-read markdown (skill) from umputun/cc-thingz: Systematic root cause analysis for errors, bugs, and unexpected behaviors using 5-Why methodology. Use when user reports errors, build failures, test failures, performance issues, integration problems, or any "it's not working" scenarios..

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 umputun/cc-thingz/root-cause-investigator@git:20260217.d627b3f
Exact content
mdr add umputun/cc-thingz/root-cause-investigator@sha256:eaeaeb08e6e125c1

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_lkpo6g6cygqwy44r.svg)](https://markdownregistry.com/a/art_lkpo6g6cygqwy44r)

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Versions

versioncommittedcommitsizeaudit
git:20260217.d627b3f latest2026-02-17 d627b3f 3,515 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 (3515 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

umputun/cc-thingz · 477 stars · license MIT · pushed 2026-09-08 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_lkpo6g6cygqwy44r
GET https://markdownregistry.com/api/v1/resolve?ref=umputun/cc-thingz/root-cause-investigator
GET https://markdownregistry.com/api/v1/blob/eaeaeb08e6e125c1022f865f847e777fbff1782a389587a89e1a66e0ea9101f0

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.