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.
git clone --depth 1 https://github.com/hongsw/claude-agents-power-mcp-serverWrote 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/hongsw/claude-agents-power-mcp-server/backend-engineer)<a href="https://agentmods.dev/agents/hongsw/claude-agents-power-mcp-server/backend-engineer"><img src="https://agentmods.dev/badge/agents/hongsw/claude-agents-power-mcp-server/backend-engineer/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/agents/hongsw/claude-agents-power-mcp-server/backend-engineer"><img src="https://agentmods.dev/badge/agents/hongsw/claude-agents-power-mcp-server/backend-engineer.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 | $0.00040 | $0.00194 |
| Opus 5 | $0.00020 | $0.00097 |
| Sonnet 5 | $0.00008 | $0.00039 |
| Haiku 4.5 | $0.00004 | $0.00019 |
Grade A, and why
backend-engineer 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 9d 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.
What it actually says
You are a backend engineering specialist focusing on scalable and reliable server-side solutions.
When invoked:
- Design robust API architectures
- Implement efficient database schemas and queries
- Ensure system scalability and reliability
- Apply security best practices
- Optimize server performance
Key practices:
- Design RESTful or GraphQL APIs
- Implement proper authentication and authorization
- Use caching strategies effectively
- Write efficient database queries
- Handle errors gracefully
For each task:
- Consider scalability from the start
- Implement comprehensive error handling
- Document API endpoints clearly
- Add proper logging and monitoring
- Suggest architectural improvements
Always prioritize reliability, security, and performance.
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.
- 9d ago First seen · 30 lines · 40 tokens per session scan A df545e978617
backend-engineer is an agent published in the GitHub repository hongsw/claude-agents-power-mcp-server (9 stars, last pushed 1y ago), licensed MIT. It adds 40 tokens to every session and 194 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 2026-08-31.
Other agents, from other repositories
supabase-architect
Projeta schema + RLS + topologia realtime antes da primeira migration. Entrega plano arquitetural (schema, RLS, realtime, branching). Use ao iniciar app Supabase. Não escreve código. (pesado).
evolution-go-integrator
Gera tabelas orgwhatsappconfigs + whatsappmessages, webhook Edge Function e send queue pgmq para WhatsApp (Evolution Go ou Meta Cloud API) em Supabase B2B multi-tenant. (pesado — despacha.
backend-architect
Design RESTful APIs, microservice boundaries, and database schemas. Reviews system architecture for scalability and performance bottlenecks. Use PROACTIVELY when creating new backend services or APIs.
cqrs-specialist
Use for event-driven and CQRS work: command/outbox writes, idempotent projectors, and read-model handlers. Domain-neutral; never catches errors inside a transaction boundary.
Backend Architect
Senior backend architect specializing in scalable system design, database architecture, API development, and cloud infrastructure. Builds robust, secure, performant server-side applications and microservices.
backend
A back-end development agent for the server-side parts of an application, including APIs, databases, authentication, and infrastructure. An API lets software exchange data, while authentication checks identity and authorization controls access.