system-design-mobile-client SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
system-design-mobile-client from hoangnguyen0403/agent-skills-standard is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hoangnguyen0403/agent-skills-standard/system-design-mobile-client@git:20261021.8da3953Pins git:20261021.8da3953 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hoangnguyen0403/agent-skills-standard
- Path
.agents/skills/system-design/system-design-mobile-client/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261021.8da3953, committed Oct 21, 2026
- Size
- 3,245 bytes
- Repository stars
- 583
- License
- MIT
Design mobile/client and SDK/library systems where offline behavior, client authority, lifecycle, device constraints, or host compatibility affect correctness. Use for mobile-client system design, offline sync, client lifecycle, device resource limits, or SDK contracts; not framework coding or backend-only sharding.
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
# Mobile and Client System Design ## **Priority: P1 (HIGH)** Classify the work mode independently from its surface: new design, review existing, or interview practice can each target mobile/client, SDK/library, backend, or full stack. Focus on user-visible authority, lifecycle, synchronization, platform constraints, and host compatibility—not UI/framework implementation. ## Design decisions - Name the server-authoritative state and any local display, pending, cached, or derived state. Never present optimistic/pending state as durable server success. - For each critical client flow, link the canonical [critical-flow contract](../system-design-data-architecture/references/flow-contracts.md); do not duplicate its field checklist. Add only material client-specific lifecycle, auth, freshness, retry, conflict, and deletion decisions. - Decide explicitly whether offline use is required. If correctness depends on a live authorization or current server state, choose online-only behavior and define unavailable/error UX; do not add a local database by default. …
Read the whole file at its exact version.
How to install
mdr add hoangnguyen0403/agent-skills-standard/system-design-mobile-client@sha256:619d757669578ee7The line at the top of this page pins the label git:20261021.8da3953, 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.
[](https://markdownregistry.com/a/art_xtmrlpq5kc6bpch2)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 21, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3245 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
hoangnguyen0403/agent-skills-standard · 583 stars · license MIT · pushed 2026-11-07 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_xtmrlpq5kc6bpch2 GET https://markdownregistry.com/api/v1/resolve?ref=hoangnguyen0403/agent-skills-standard/system-design-mobile-client GET https://markdownregistry.com/api/v1/blob/619d757669578ee74d5c4c253537e4f192c18f8d35a06985ed427c32136191b1
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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