why
Use for 'why does X work this way', 'why we picked Y', design rationale, regressions, postmortems, or data-backed thresholds.
Skill by MarvinSchenkel
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/marvinschenkel-why
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: design, devops, data
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
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What's inside
- Skill name
why- Description
- Use for 'why does X work this way', 'why we picked Y', design rationale, regressions, postmortems, or data-backed thresholds. Discovers available MCPs and queries each evidence category (source control, issue tracker, long-form docs, real-time chat, infrastructure observability, error tracking, product analytics warehouse) in parallel, then returns a cited read on decisions and tradeoffs. Use how for runtime behavior.
- License
- unknown
- Instructions
- 226 lines in SKILL.md · view on GitHub
Files (13)
- SKILL.md
- epistemics.md · references/
- investigator-prompt.md · references/
- source-playbook.md · references/
- code-archaeology.md · references/sources/
- databricks.md · references/sources/
- datadog.md · references/sources/
- incident-postmortem.md · references/sources/
- linear.md · references/sources/
- notion.md · references/sources/
- sentry.md · references/sources/
- slack.md · references/sources/
- synthesizer-prompt.md · references/
The license isn't open source, so the instructions aren't shown here. Read SKILL.md on GitHub
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Debug any issues for MA
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Grill the user relentlessly about a plan, decision, or idea.
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Spawn N parallel candidates at the same task, pick a base, graft the strongest parts of the losers into it.
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Diagnosis loop for hard bugs and performance regressions.
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Babysit the PR, monitor for CI status and Copilot comments.
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startbefe
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Start a backend and frontend
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Signals
- Stars
- 1
- Forks
- 1
- Open issues
- 0
- Last commit (this folder)
- Oct 1, 2026 (27 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- License unknown
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Use when you need the local-only OpenCode helper for an Ollama-backed coding loop.
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self_review
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Use to self-review the work done so far and get a second opinion from other models, or when the user says /self_review
SkillAFreshness: A★ 1Claude Code +9 - 0.572score
fix_comments
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Use when asked to fix, trim, or clean up code comments that are too verbose, or when the user says /fix_comments
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Cite this page
why skill. Agent Mart. https://agentmart.dev/skills/marvinschenkel-why (last updated 2026-10-24)