# Mangowhoiscloud Crumb Crumb Doctor > Mangowhoiscloud Crumb Crumb Doctor - Skill: `tomevault-io/mangowhoiscloud-crumb-crumb-doctor` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/mangowhoiscloud-crumb-crumb-doctor` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/mangowhoiscloud-crumb-crumb-doctor/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/mangowhoiscloud-crumb-crumb-doctor --- # /crumb-doctor — environment health check When the user asks about environment readiness or what presets are viable: **Preferred path** — call the `crumb_doctor` MCP tool (no args). **Fallback path** — `npx tsx src/index.ts doctor`. Output table: `| Host | Status | Detail |` for Claude Code / Codex CLI / Gemini CLI / playwright / htmlhint. Then `## Recommended preset (for the current environment)` with viable / not-viable per preset. Explicit slash form: `/crumb-doctor`. Reference: `src/helpers/doctor.ts`, v0.1 §3 (auth-manager spec). --- > Source: [mangowhoiscloud/crumb](https://github.com/mangowhoiscloud/crumb) — distributed by [TomeVault](https://tomevault.io).