Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add tranhieutt/software_development_department --skill microservices-patternsgit clone --depth 1 https://github.com/tranhieutt/software_development_departmentWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/tranhieutt/software_development_department/microservices-patterns)<a href="https://agentmods.dev/skills/tranhieutt/software_development_department/microservices-patterns"><img src="https://agentmods.dev/badge/skills/tranhieutt/software_development_department/microservices-patterns/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/tranhieutt/software_development_department/microservices-patterns"><img src="https://agentmods.dev/badge/skills/tranhieutt/software_development_department/microservices-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00038 | $0.00684 |
| Opus 5 | $0.00019 | $0.00342 |
| Sonnet 5 | $0.00008 | $0.00137 |
| Haiku 4.5 | $0.00004 | $0.00068 |
Grade A, and why
microservices-patterns scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Microservices Patterns
Service decomposition, communication, resilience, and orchestration patterns.
Service Decomposition
| Pattern | Description | Use When |
|---|---|---|
| Domain-Driven | Align services with bounded contexts | Complex business domains |
| Data-Ownership | Service owns its data store | Data isolation required |
| Team-Aligned | One service per team | Large organizations |
Communication Patterns
Sync: HTTP/gRPC
```yaml
API Gateway routing
routes:
- match: { prefix: /orders } route: { cluster: order-service }
- match: { prefix: /users } route: { cluster: user-service } ```
Async: Message Queue
``` Producer → Exchange → Queue → Consumer (Topic) (DLQ on failure) ```
Use async for: event propagation, eventual consistency, load leveling.
Resilience Patterns
Circuit Breaker
```typescript // Example with opossum const breaker = new CircuitBreaker(fetchUserProfile, { timeout: 3000, errorThresholdPercentage: 50, resetTimeout: 30000, }); ```
Retry with Backoff
```typescript async function retryWithBackoff(fn, maxRetries = 3) { for (let i = 0; i < maxRetries; i++) { try { return await fn(); } catch (e) { await sleep(Math.pow(2, i) * 1000); } } throw new Error('Max retries exceeded'); } ```
Data Patterns
| Pattern | Consistency | Complexity | Use When |
|---|---|---|---|
| Saga (orchestration) | Eventual | High | Complex multi-service transactions |
| Saga (choreography) | Eventual | Medium | Simple event chains |
| Event sourcing | Eventual | High | Audit trail, time travel |
| Shared database | Strong | Low | Anti-pattern, avoid |
API Gateway
Tools: Kong, AWS API Gateway, Envoy, NGINX.
Responsibilities: routing, auth, rate limiting, request transformation, load balancing.
Observability Stack
- Distributed tracing: Jaeger / Tempo
- Metrics: Prometheus + Grafana
- Logs: ELK / Loki
- Service mesh: Istio / Linkerd (adds mTLS, traffic management)
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 95 lines · 38 tokens per session scan A 55c3305ad036
microservices-patterns is a skill published in the GitHub repository tranhieutt/software_development_department (72 stars, last pushed 4mo ago), licensed MIT. It adds 38 tokens to every session and 684 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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