site-reliability-engineering

site-reliability-engineering is a skill for Claude Code, Codex from magnus919/hermes-profiles. It costs 37 tokens per session (1,110 once invoked), scanned A, original, MIT.

A method for operating production software reliably using service objectives, monitoring, incident response, and operational practices. An SLO is a target for service performance; an error budget is the amount of unreliability allowed while pursuing that target.

In plain words
What is it for?
Use it to design reliability targets, build observability and alerts, run blameless postmortems, improve on-call rotations, reduce repetitive operational work, create runbooks, and coordinate incident response.
Why use it?
It gives teams a structured way to prevent failures, detect problems, coordinate incidents, and learn from them afterward. It also helps balance new development against reliability work.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to design reliability targets, build observability and alerts, run blameless postmortems, improve on-call rotations, reduce repetitive operational work, create runbooks, and coordinate incident response.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/magnus919/hermes-profiles/site-reliability-engineering
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.

Any agent
npx skills add magnus919/hermes-profiles --skill site-reliability-engineering
Clone the repo
git clone --depth 1 https://github.com/magnus919/hermes-profiles

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for site-reliability-engineering

README.md
[![agentmods](https://agentmods.dev/badge/skills/magnus919/hermes-profiles/site-reliability-engineering/github.svg)](https://agentmods.dev/skills/magnus919/hermes-profiles/site-reliability-engineering)
Your own site
<a href="https://agentmods.dev/skills/magnus919/hermes-profiles/site-reliability-engineering"><img src="https://agentmods.dev/badge/skills/magnus919/hermes-profiles/site-reliability-engineering/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.

agentmods 80×15 button for site-reliability-engineering

Your own site · 80×15
<a href="https://agentmods.dev/skills/magnus919/hermes-profiles/site-reliability-engineering"><img src="https://agentmods.dev/badge/skills/magnus919/hermes-profiles/site-reliability-engineering.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,110 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00037 $0.01110
Opus 5 $0.00018 $0.00555
Sonnet 5 $0.00007 $0.00222
Haiku 4.5 $0.00004 $0.00111

Measured 10d ago against content hash 4dc3d60b8ed3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

site-reliability-engineering 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 10d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/slo-burn-rate.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/site-reliability-engineering/SKILL.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Site Reliability Engineering

A comprehensive methodology for designing, operating, and improving reliable production systems. Rooted in Google SRE principles and extended with modern practices for incident command, observability engineering, error budget governance, and operational excellence.

When to Load This Skill

Trigger What It Means
"Design reliability into this system" SLO/SLI framework, error budget policy, resilience architecture
"Run an incident postmortem" Blameless postmortem with timeline, 5 Whys, action tracking
"Improve our on-call" Rotation design, alert tuning, toil reduction, escalation policy
"Build observability" The Four Golden Signals, dashboard design, alert rule patterns
"Do a reliability review" Architecture review against SRE principles, risk assessment
"I need an incident commander" Incident command framework, role cards, communication templates
"Automate this operational task" Toil assessment, automation decision tree, runbook pattern

Loading Order

  1. skill_view('site-reliability-engineering') — this file, methodology index
  2. Load references on demand by topic (see below)

Reference Files

Topic File When to Load
SRE Book Chapter Summaries references/sre-book-chapters.md Design engagement, first principles review
SLO/SLI Framework references/slo-sli-framework.md Defining reliability targets
Error Budget Governance references/error-budget-governance.md Policy design, burn rate alerts
Incident Command System references/incident-command-system.md During/after incident, training
Blameless Postmortems references/postmortem-culture.md After incident, process design
Monitoring & Alerting references/monitoring-alerting.md Observability design, alert rules
On-Call Best Practices references/oncall-best-practices.md Rotation design, team sizing
Toil Elimination references/toil-elimination.md Automation prioritization, ops review
Release Engineering references/release-engineering.md Deployment pipeline design
Effective Troubleshooting references/troubleshooting.md Debugging methodology
Senior SRE Role Blueprint references/senior-sre-blueprint.md Role definition, KPI framework
SRE Communication Guide references/sre-communication-guide.md Stakeholder updates, incident communication
Guiding Principles references/guiding-principles.md First principles, philosophy
Product-Focused Reliability references/product-focused-reliability.md Product-centric SRE, CUJ-based SLOs, JTBD model
Twenty Years of Lessons references/twenty-years-lessons.md Incident-derived tactical lessons, Prodverbs
SRE Ecosystem Guide references/sre-ecosystem-guide.md Curated guide to all SRE resources (Workbook, Secure Systems, Classroom, Prodcast, STPA, Video Gallery, Mobaa, fundamentals, AI ops)

Read the full file on GitHub · 88 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. 10d ago First seen · 88 lines · 37 tokens per session scan A 4dc3d60b8ed3

Subscribe to this mod's changes

site-reliability-engineering is a skill published in the GitHub repository magnus919/hermes-profiles (161 stars, last pushed 2mo ago), licensed MIT. It adds 37 tokens to every session and 1,110 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.

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