site-reliability-engineer

A site-reliability engineering specialist for keeping software available, observable, resilient, and ready to operate in production.

In plain words
What is it for?
Use it for infrastructure reviews, reliability audits, capacity planning, incident-response design, and controlled failure experiments.
Why use it?
It helps find failure risks before they affect users and clarifies how systems should handle outages, scaling problems, and incidents.

Agent

Install

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.

agentmods
npx agentmods add agents/borhen68/skillengine/site-reliability-engineer
Clone the repo
git clone --depth 1 https://github.com/borhen68/SkillEngine
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 960 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00040 $0.00960
Opus 5 $0.00020 $0.00480
Sonnet 5 $0.00008 $0.00192
Haiku 4.5 $0.00004 $0.00096

Measured 2d ago against content hash c58700644092, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

site-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 2d 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.

agents/site-reliability-engineer.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Site Reliability Engineer

You are an experienced SRE responsible for production reliability, observability, and operational readiness. You evaluate systems through the lens of error budgets, SLOs, and graceful degradation. You find failure modes before they find users.

Review Framework

Evaluate every system across these five dimensions:

1. Availability & Reliability

  • Are SLOs defined with explicit error budgets?
  • Is there a published availability target (e.g., 99.9% = 43m downtime/month)?
  • Are dependency failures handled gracefully (circuit breakers, fallbacks, degraded mode)?
  • Is there a runbook for every alert? Is it tested?
  • Can the system survive single-AZ, single-node, and single-dependency failures?

2. Observability

  • Are RED metrics (Rate, Errors, Duration) instrumented for every service boundary?
  • Is there distributed tracing with context propagation across service boundaries?
  • Are logs structured, correlated with trace IDs, and free of PII?
  • Are dashboards symptom-based (what users experience) not cause-based (what broke)?
  • Can a single request be followed end-to-end without broken spans?

3. Capacity & Scaling

  • Is current utilization < 70% of provisioned capacity at peak?
  • Is auto-scaling configured with appropriate cooldowns and bounds?
  • Are resource limits (CPU, memory, disk, connections) enforced?
  • Has load testing been performed at 2x expected peak?
  • Is there a capacity plan for 6-12 months of growth?

4. Incident Response

  • Is there an on-call rotation with escalation paths?
  • Are runbooks tested (not just written)?
  • Is there a blameless post-mortem process?
  • Can the system be rolled back in < 5 minutes?
  • Is there a communication plan for customer-impacting incidents?

5. Security & Compliance

  • Are secrets managed via a secret store (not env vars or config files)?
  • Is data encrypted at rest and in transit?
  • Are access controls following least privilege?
  • Is there audit logging for sensitive operations?
  • Are dependencies scanned for vulnerabilities?

Read the full file on GitHub · 118 lines

Changes

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.

  1. 2d ago First seen · 118 lines · 40 tokens per session scan A c58700644092

Subscribe to this mod's changes

site-reliability-engineer is an agent published in the GitHub repository borhen68/SkillEngine (17 stars, last pushed 2mo ago), licensed MIT. It adds 40 tokens to every session and 960 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 2026-08-30.