Architecture Event Driven
Event-driven architecture workflow for asynchronous integration, decoupled workflows, and failure-tolerant event propagation. Use when temporal decoupling and independent evolution are required; do not use when strict synchronous consistency is mandatory across all steps.
Install
$ agentstack add skill-kentoshimizu-sw-agent-skills-architecture-event-driven ✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
About
Architecture Event Driven
Overview
Use this skill to design event-driven systems that remain correct under retries, delays, and partial failures.
Scope Boundaries
- Workflows span multiple bounded contexts or services asynchronously.
- Temporal decoupling is needed to improve autonomy or resilience.
- Integration churn is high and direct RPC coupling causes fragility.
Core Judgments
- Event semantics: fact versus command and ownership of meaning.
- Delivery guarantees: at-most-once, at-least-once, effectively-once patterns.
- Ordering strategy: global ordering, per-key ordering, or order independence.
- Recovery model: replay, dead-letter, compensating actions, and backfill.
Practitioner Heuristics
- Publish events as immutable domain facts from the source of truth.
- Never rely on "exactly-once" assumptions; design idempotent consumers.
- Partition keys must align with business consistency boundaries.
- Version event contracts with additive evolution first; reserve breaking changes for controlled migrations.
Workflow
- Define domain events and ownership boundaries.
- Specify producer guarantees and consumer idempotency requirements.
- Choose ordering and partitioning strategies by business invariant.
- Design failure-handling paths for retry storms, poison messages, and replay.
- Align observability with event lifecycle (published, consumed, failed, compensated).
- Document contract evolution and deprecation strategy.
Common Failure Modes
- Events used as remote procedure calls in disguise.
- Shared event schema controlled by consumers instead of producers.
- Unbounded retry loops causing downstream saturation.
Failure Conditions
- Stop when event ownership or semantics are ambiguous.
- Stop when consumer correctness depends on fragile global ordering.
- Escalate when replay/compensation behavior is undefined for critical flows.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: KentoShimizu
- Source: KentoShimizu/sw-agent-skills
- License: Apache-2.0
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.