five-whys SKILL.md skillA

five-whys from tonydzi/second-brain-starter-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add tonydzi/second-brain-starter-kit/five-whys@git:20261020.402f6b7

Pins git:20261020.402f6b7 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
tonydzi/second-brain-starter-kit
Path
skills/five-whys/SKILL.md
Versions recorded
5
Latest version
git:20261020.402f6b7, committed Oct 20, 2026
First version recorded
Sep 24, 2026
Size
17,802 bytes
Repository stars
12
License
MIT

Investigate the root cause of a recurring or systemic defect across a series of incidents, not a single one. Use on the third recurrence, or when someone asks 'why again?', 'five whys', 'fix the root'. Skip for one or two ordinary cases, an already proven simple cause, or a one-off external outage. Triggers: /five-whys, five whys, fix the root.

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

# /five-whys — доказать корень по серии случаев

Это расследование причин, а не генератор объяснений и не способ немедленно придумать
новый механизм. `/five-hard` задаёт пять трудных вопросов к убеждению; к root-cause
он не относится. В Claude вызывай `/five-whys`, в Codex — `$five-whys`.

## Шаг 0 — сначала дверь, затем отдельная сессия

Явные фразы Антона «а опять почему?», «пять почему» и «чини корень» активируют
этот гейт, но не разрешают выдумать серию или причину. Обычный автоматический вход —
**3-й датированный случай одной смысловой семьи**. Не считай по тексту ошибки или
случайно придуманному имени класса.

До выбора `--class` выполни:

```text
python "$HOME/.claude/scripts/prior_art.py" class "<нейтральное описание поломки>"
```

`exit 0` означает, что прежнее не найдено; `exit 3` означает найденный prior art,
а не ошибку. Если прибор напечатал `СЕМЬЯ <slug>`, используй этот slug. Если известной
семьи нет, но прибор показал прежние строки, бери имя предмета ремонта/нарушенного
инварианта из самой ранней совпавшей строки. При `exit 0`, когда прежней строки нет,
назови класс по **текущему** предмету ремонта/нарушенному инварианту и запиши его как
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add tonydzi/second-brain-starter-kit/five-whys@sha256:42df4a1e46945bb1

The line at the top of this page pins the label git:20261020.402f6b7, 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_tqyy3qvvvflvzy6z.svg)](https://markdownregistry.com/a/art_tqyy3qvvvflvzy6z)

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

Versions

The registry has recorded 5 versions of this file, between Sep 24, 2026 and Oct 20, 2026, about one every 6 days.

versioncommittedcommitsizeaudit
git:20261020.402f6b7 latest2026-10-20 402f6b7 17,802 BA view · diff
git:20261007.cd6c2082026-10-07 cd6c208 17,808 BA view · diff
git:20261003.853d1df2026-10-03 853d1df 17,810 BA view · diff
git:20261003.a2d662f2026-10-03 a2d662f 17,890 BA view · diff
git:20260924.2784cb22026-09-24 2784cb2 16,775 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 (17802 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

tonydzi/second-brain-starter-kit · 12 stars · license MIT · pushed 2026-10-20 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_tqyy3qvvvflvzy6z
GET https://markdownregistry.com/api/v1/resolve?ref=tonydzi/second-brain-starter-kit/five-whys
GET https://markdownregistry.com/api/v1/blob/42df4a1e46945bb11d95d3239a5c050dbbe626abc2106639ba59f4a53e411bff

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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Every file in tonydzi/second-brain-starter-kit

Other files named five-whys

five-whys SKILL.md skill
wesammustafa/claude-code-everything-you-need-to-know · .github/scripts/fixtures/valid-example-kit/tree/examples/intermediate/01-first-skill/dot-claude/skills/five-whys/SKILL.md · Find the root cause of a bug by asking why five times
git:20261005.adf7d99 · audit C · 3,462 stars
five-whys SKILL.md skill
wesammustafa/claude-code-everything-you-need-to-know · examples/intermediate/01-first-skill/dot-claude/skills/five-whys/SKILL.md · Finds the root cause of a bug, failure or recurring problem by asking "why" until the answer is a cause you can fix…
git:20261006.11cadf7 · audit A · 3,462 stars
five-whys SKILL.md skill
wesammustafa/claude-code-everything-you-need-to-know · .github/scripts/fixtures/skill-missing-description/tree/examples/intermediate/01-first-skill/dot-claude/skills/five-whys/SKILL.md
git:20261005.adf7d99 · audit C · 3,462 stars
five-whys SKILL.md skill
ysskrishna/ai-agent-skills · skills/five-whys/SKILL.md · Use for the 5 Whys, or when the user wants the root cause of a failure: "why did this happen?", "this keeps breaking"…
v2026.10.5 · audit A · 17 stars

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