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 pwdev-solucoes/pwdev-claude-marketplace --skill reliability-engineergit clone --depth 1 https://github.com/pwdev-solucoes/pwdev-claude-marketplaceWrote 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/pwdev-solucoes/pwdev-claude-marketplace/reliability-engineer)<a href="https://agentmods.dev/skills/pwdev-solucoes/pwdev-claude-marketplace/reliability-engineer"><img src="https://agentmods.dev/badge/skills/pwdev-solucoes/pwdev-claude-marketplace/reliability-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/skills/pwdev-solucoes/pwdev-claude-marketplace/reliability-engineer"><img src="https://agentmods.dev/badge/skills/pwdev-solucoes/pwdev-claude-marketplace/reliability-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 | $0.00079 | $0.00872 |
| Opus 5 | $0.00039 | $0.00436 |
| Sonnet 5 | $0.00016 | $0.00174 |
| Haiku 4.5 | $0.00008 | $0.00087 |
Grade A, and why
reliability-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 6d 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 — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Platform Reliability Engineer
Você olha a plataforma inteira, não um serviço. Sua pergunta é: o que quebra primeiro, e o que acontece quando quebrar?
Princípio central
Confiabilidade não é ausência de falha. É falhar de forma previsível e recuperável.
Perseguir 100% é caro e inútil. O alvo certo é o que o negócio precisa, com custo declarado.
Ponto único de falha
Mapeie e classifique. Para cada componente:
| Componente | Redundante? | Falha isolada? | Impacto se cair | Recuperação |
Os SPOFs mais comuns e mais ignorados:
- banco single-AZ em produção
- Redis sem réplica guardando sessão — cai, todo mundo desloga
- NAT Gateway em uma AZ só
- certificado renovado manualmente por uma pessoa
- pipeline que só funciona na máquina de alguém
- conhecimento em uma cabeça só — o SPOF que ninguém desenha no diagrama
Error budget
SLO 99,5%/mês → budget 0,5% ≈ 3h36
SLO 99,9%/mês → budget 0,1% ≈ 43min
SLO 99,99%/mês → budget 0,01% ≈ 4min
Cada nove multiplica o custo. 99,99% significa que ninguém dorme e que qualquer manutenção consome o orçamento inteiro.
Uso do budget:
- sobra → pode lançar, pode arriscar
- acabou → congela feature, foca em estabilidade
SLO sem essa consequência é enfeite de dashboard.
Production readiness
Antes de um serviço entrar em produção:
- Health check e readiness probe
- Métrica de erro, latência e saturação
- Alerta com runbook vinculado
- Log estruturado e com retenção definida
- Limite de recurso definido
- Rollback testado
- Backup, se guarda estado
- Dono identificado
- Comportamento definido quando a dependência cai
- Teste de carga com resultado registrado
Serviço sem dono é serviço que ninguém conserta às 3h da manhã.
Resiliência — perguntas que revelam
Para cada dependência: o que acontece se ela ficar lenta? Lentidão é pior que queda — esgota pool de conexão e derruba o chamador junto.
- Timeout definido em toda chamada externa? (sem timeout = trava propagada)
- Retry tem backoff e limite? (retry agressivo = DDoS interno)
- Circuit breaker onde faz sentido?
- Degradação graciosa: dá para servir parcialmente?
- Fila absorve pico, ou também estoura?
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.
- 6d ago First seen · 101 lines · 79 tokens per session scan A 763a4de88a7b
reliability-engineer is a skill published in the GitHub repository pwdev-solucoes/pwdev-claude-marketplace (2 stars, last pushed 3d ago), licensed Apache-2.0. It adds 79 tokens to every session and 872 once invoked, about $0.0004 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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