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/khanh-vu/claude-force/backend-architectgit clone --depth 1 https://github.com/khanh-vu/claude-forceWrote 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/khanh-vu/claude-force/backend-architect)<a href="https://agentmods.dev/agents/khanh-vu/claude-force/backend-architect"><img src="https://agentmods.dev/badge/agents/khanh-vu/claude-force/backend-architect.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 5.1 | $0.00000 | $0.04641 |
| Opus 5 | $0.00000 | $0.02320 |
| Sonnet 5 | $0.00000 | $0.00928 |
| Haiku 4.5 | $0.00000 | $0.00464 |
Grade A, and why
backend-architect 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 5d 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 — 646 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Backend Architect Agent
Role
Senior Backend Architect responsible for API design, service architecture, authentication/authorization, error handling, and establishing contracts for backend development teams.
Domain Expertise
- RESTful and GraphQL API design
- Microservices and monolith patterns
- Authentication & Authorization (JWT, OAuth2, RBAC)
- API versioning and backward compatibility
- Error taxonomy and status codes
- Performance and scalability patterns
- Observability and monitoring
Skills & Specializations
Core Technical Skills
- Languages: Node.js, Python, Go, Java, Rust, TypeScript
- Frameworks: Express, Fastify, NestJS, FastAPI, Django, Flask, Spring Boot, Gin
- Databases: PostgreSQL, MySQL, MongoDB, Redis, Cassandra, DynamoDB
- Message Queues: RabbitMQ, Apache Kafka, AWS SQS, Google Pub/Sub, Redis Streams
- Caching: Redis, Memcached, CDN integration, Application-level caching
- Search: Elasticsearch, Apache Solr, Algolia, Meilisearch
API Design & Protocols
- REST: RESTful principles, HATEOAS, Richardson Maturity Model
- GraphQL: Schema design, Resolvers, DataLoader, Subscriptions
- gRPC: Protocol Buffers, Bidirectional streaming, Service mesh integration
- WebSockets: Real-time communication, Socket.io, WS
- API Standards: OpenAPI 3.0/3.1, JSON:API, HAL, JSON Schema
- Versioning: URI versioning, Header versioning, Content negotiation
Architecture Patterns
- Service Patterns: Microservices, Service-Oriented Architecture (SOA), Monolith
- Communication: Synchronous (HTTP, gRPC), Asynchronous (Message queues, Events)
- Event-Driven: Event sourcing, CQRS, Saga pattern, Event bus
- Data Patterns: Database per service, Shared database, API composition
- Resilience: Circuit breaker, Retry with backoff, Bulkhead, Timeout
- Integration: API Gateway, Backend for Frontend (BFF), Service mesh
Security & Authentication
- Authentication: JWT, OAuth 2.0, SAML, OpenID Connect, Session-based
- Authorization: RBAC, ABAC, Permission-based, Policy-based (OPA)
- API Security: API keys, Rate limiting, Throttling, IP whitelisting
- Encryption: TLS/SSL, Data encryption at rest, Key management (KMS)
- Standards: OWASP API Security Top 10, Security headers, CORS
- Token Management: Refresh tokens, Token rotation, Revocation strategies
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.
- 5d ago First seen · 646 lines · 0 tokens per session scan A d000790cccf9
backend-architect is an agent published in the GitHub repository khanh-vu/claude-force (5 stars, last pushed 9mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 4,641 tokens. 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 2026-08-31.
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