What is define-slo-sli-sla?

A process for setting reliability targets for a service and measuring whether it meets them. SLI means the measurement, SLO means the target, and SLA means the customer-facing commitment.

Use it to define service metrics, set availability and performance targets, track error budgets, create burn-rate alerts, and report service quality.

It replaces vague uptime goals with agreed measurements, targets, and rules for deciding when reliability work should take priority.

define-slo-sli-sla — Skill for Claude Code by pjt222

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/pjt222/agent-almanac

agentmods

npx agentmods add skills/pjt222/agent-almanac/define-slo-sli-sla

Made for: Claude Code.

Or install agent-almanac, the plugin that ships this one along with the rest of its 122 skills, 76 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/pjt222/agent-almanac/define-slo-sli-sla/github.svg)](https://agentmods.dev/skills/pjt222/agent-almanac/define-slo-sli-sla)

Your own site

<a href="https://agentmods.dev/skills/pjt222/agent-almanac/define-slo-sli-sla"><img src="https://agentmods.dev/badge/skills/pjt222/agent-almanac/define-slo-sli-sla/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/pjt222/agent-almanac/define-slo-sli-sla"><img src="https://agentmods.dev/badge/skills/pjt222/agent-almanac/define-slo-sli-sla.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 93 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,607 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Privilege Escalation · line 263
Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.

Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
medium MCP Rug Pull · line 266
Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.

Fix: Pin the image: image:tag or image@sha256:abc123

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00093	$0.03607
Opus 5	$0.00046	$0.01803
Sonnet 5	$0.00019	$0.00721
Haiku 4.5	$0.00009	$0.00361

Measured 8d ago against content hash 156b69aadb8a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

define-slo-sli-sla scanned grade B with 2 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 8d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo mv sloth-linux-amd64 /usr/local/bin/sloth

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

wget https://github.com/slok/sloth/releases/download/v0.11.0/sloth-linux-amd64

i18n/caveman-lite/skills/define-slo-sli-sla/SKILL.md · 462 lines

How it starts

The opening of the file, as written. The whole thing — 462 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Define SLO/SLI/SLA

Establish measurable reliability targets with Service Level Objectives, track them with indicators, and manage error budgets.

When to Use

Defining reliability targets for customer-facing services or APIs
Establishing clear expectations between service providers and consumers
Balancing feature velocity with system reliability through error budgets
Creating objective criteria for incident severity and response
Migrating from arbitrary uptime goals to data-driven reliability metrics
Implementing Site Reliability Engineering (SRE) practices
Measuring and improving service quality over time

Inputs

Required: Service description and critical user journeys
Required: Historical metrics data (request rates, latencies, error rates)
Optional: Existing SLA commitments to customers
Optional: Business requirements for service availability and performance
Optional: Incident history and customer impact data

Procedure

See Extended Examples for complete configuration files and templates.

Step 1: Understand SLI, SLO, and SLA Hierarchy

Learn the relationship and differences between these three concepts.

Definitions:

SLI (Service Level Indicator)
- **What**: A quantitative measure of service behavior
- **Example**: Request success rate, request latency, system throughput
- **Measurement**: `successful_requests / total_requests * 100`

SLO (Service Level Objective)
- **What**: Target value or range for an SLI over a time window
- **Example**: 99.9% of requests succeed in 30-day window
- **Purpose**: Internal reliability target to guide operations

SLA (Service Level Agreement)
- **What**: Contractual commitment with consequences for missing SLO
- **Example**: 99.9% uptime SLA with refunds if breached
- **Purpose**: External promise to customers with penalties

Hierarchy:

SLA (99.9% uptime, customer refunds)
  ├─ SLO (99.95% success rate, internal target)
  │   └─ SLI (actual measured: 99.97% success rate)
  └─ Error Budget (0.05% failures allowed per month)

Read the full file on GitHub · 462 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.

8d ago First seen · 462 lines · 93 tokens per session scan B 156b69aadb8a

Subscribe to this mod's changes

define-slo-sli-sla is a skill published in the GitHub repository pjt222/agent-almanac (33 stars, last pushed yesterday), licensed MIT. It adds 93 tokens to every session and 3,607 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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