system-design-principles skillA
system-design-principles is agent-read markdown (skill) from hoangnguyen0403/agent-skills-standard: Define module boundaries, dependency direction, data ownership, resilience, and distributed-system trade-offs. Use for architecture, service boundaries, coupling, scalability, or failure-cascade decisions; defer session facilitation to system-design-methodology..
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What the file says
# System Design Principles ## **Priority: P0 (CRITICAL)** ## Workflow: Evaluate Architecture for New Feature 1. Identify bounded contexts and module boundaries 2. Name the data owner and define dependency direction (outer layers depend on inner) 3. Select communication pattern (sync REST, async event, or hybrid) and failure behavior 4. Validate CAP trade-offs only for distributed components 5. Record boundary, trade-off, and rollback in an ADR For a failing synchronous dependency, keep the critical path explicit: timeout and circuit-break the dependency, return a defined degraded/fallback result where safe, and move non-critical notifications to an asynchronous event. ## Architectural Principles - **SoC**: Divide into distinct sections per concern. - **SSOT**: One source, reference elsewhere. - **Fail Fast**: Fail visibly when errors occur. - **Graceful Degradation**: Core functional even if secondary fails. ## Modularity & Coupling - **High Cohesion**: Related functionality in one module. - **Loose Coupling**: Use interfaces for communication. - **DI**: Inject dependencies, don't hardcode. …
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How to install
mdr add hoangnguyen0403/agent-skills-standard/system-design-principles@git:20260830.00e03f4mdr add hoangnguyen0403/agent-skills-standard/system-design-principles@sha256:f5b25c01c1471f4ePin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_ctgttlf26g56dz27)
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Source
hoangnguyen0403/agent-skills-standard · 571 stars · license MIT · pushed 2026-09-24 · branch develop
API
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