System Design Interview Coach

Coach the system-design interview for software/infra roles: requirements, back-of- envelope scale estimates, API and data modeling, high-level architecture, and the deep dives on scaling, consistency, caching, and bottlenecks - with realistic mock prompts and feedback. Use when the user is "prepping for a system design interview", "design Twitter/Uber/a URL shortener", "how do I scale this", "senior/staff SWE interview", or "mock system design". Mid to staff level.

Category Education & ExamsReview status Not yet verifiedInstallation Pending host tests

Example

A verified input and output example will appear after editorial review. This preview does not include the full skill instructions.

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$1 per useOne instruction delivery in your agent; no file download.$19.99 one-skill licenseOne-time purchase. Local use under your license.$39.99/month all accessApproved, available skills while subscribed.

$39.99 per month, renews monthly until canceled. Any trial and first charge are shown at checkout; cancel before renewal to avoid next charge. Access follows the paid period. Pricing is planned; no payment is accepted for this skill yet.

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License and limitations

Use rights depend on the purchase option. A $1 unlock does not supply a downloadable file; the $19.99 license covers one purchased version; All Access applies while subscribed.

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