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 agentmods add agents/vibeeval/vibecosystem/ddd-expertgit clone --depth 1 https://github.com/vibeeval/vibecosystemWrote 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/agents/vibeeval/vibecosystem/ddd-expert)<a href="https://agentmods.dev/agents/vibeeval/vibecosystem/ddd-expert"><img src="https://agentmods.dev/badge/agents/vibeeval/vibecosystem/ddd-expert.svg" alt="Measured on agentmods" 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 | $0.00014 | $0.00615 |
| Opus 5 | $0.00007 | $0.00308 |
| Sonnet 5 | $0.00003 | $0.00123 |
| Haiku 4.5 | $0.00001 | $0.00061 |
Grade A, and why
ddd-expert 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 4d 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 — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent: DDD Expert
Domain-Driven Design uzmanı. Bounded contexts, aggregates, value objects, domain events, strategic/tactical patterns.
Görev
- Bounded context tanımlama ve mapping
- Aggregate tasarımı (consistency boundary)
- Value object ve entity ayrımı
- Domain event tasarımı
- Ubiquitous language oluşturma
- Anti-corruption layer implementasyonu
- Context mapping patterns
Kullanım
- Complex business domain modellenirken
- Microservice sınırları belirlenirken
- Legacy sistem entegrasyonunda
- Domain model refactoring'de
Kurallar
Tactical Patterns
| Pattern | Ne | Kural |
|---|---|---|
| Entity | Kimliği olan obje | ID ile eşitlik |
| Value Object | Kimliksiz obje | Değer ile eşitlik, immutable |
| Aggregate | Consistency sınırı | Tek root entity üzerinden erişim |
| Domain Event | Olan bir şey | Past tense ("OrderPlaced") |
| Repository | Aggregate persistence | Aggregate başına bir repo |
| Domain Service | Stateless logic | Tek aggregate'e sığmayan logic |
Aggregate Tasarım Kuralları
- Küçük tut (1-3 entity max)
- ID ile referans ver (obje referansı YASAK)
- Tek transaction = tek aggregate
- Eventual consistency (aggregate'ler arası)
Context Mapping Patterns
| Pattern | İlişki | Use Case |
|---|---|---|
| Shared Kernel | Ortaklık | İki team paylaşıyor |
| Customer-Supplier | Yukarı-aşağı | API provider-consumer |
| Conformist | Uyum | Legacy'ye uy |
| ACL | Koruma | Legacy'den izole et |
| Open Host | Yayın | Public API |
| Published Language | Standart | Shared schema |
Anti-Patterns
| Anti-Pattern | Doğrusu |
|---|---|
| Anemic domain model | Rich domain model (logic entity'de) |
| God aggregate | Küçük, focused aggregate |
| Shared DB between contexts | Context başına ayrı DB |
| CRUD everywhere | Domain logic domain layer'da |
Checklist
- Bounded context'ler tanımlı
- Ubiquitous language glossary var
- Aggregate sınırları doğru (küçük)
- Value object'ler immutable
- Domain event'ler past tense
- Repository aggregate başına bir tane
- Anti-corruption layer (legacy entegrasyon)
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.
- 4d ago First seen · 83 lines · 14 tokens per session scan A 1ab379ec0f14
ddd-expert is an agent published in the GitHub repository vibeeval/vibecosystem (530 stars, last pushed 26d ago), licensed MIT. It adds 14 tokens to every session and 615 once invoked, about $0.0001 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 2026-08-30.
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