agentmods.dev

observability-designer

observability-designer is a skill for Claude Code, Codex from johnefemer/skillfish. It costs 0 tokens per session (2,518 once invoked), scanned A, original, no licence file.

A guide to designing observability for production systems: the monitoring, service targets, and alerts used to understand system health.

In plain words
What is it for?
It is for designing SLI and SLO frameworks and improving alerting strategies.
Why use it?
It helps teams define useful reliability targets and reduce alerts that do not require action.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 4repo 4d ago A scan 0 tokens no licence

Good fit It is for designing SLI and SLO frameworks and improving alerting strategies.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/johnefemer/skillfish/observability-designer
View source ↗ johnefemer/skillfish coach.omazy.ai
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 johnefemer/skillfish --skill observability-designer
Clone the repo
git clone --depth 1 https://github.com/johnefemer/skillfish

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 observability-designer

README.md
[![agentmods](https://agentmods.dev/badge/skills/johnefemer/skillfish/observability-designer/github.svg)](https://agentmods.dev/skills/johnefemer/skillfish/observability-designer)
Your own site
<a href="https://agentmods.dev/skills/johnefemer/skillfish/observability-designer"><img src="https://agentmods.dev/badge/skills/johnefemer/skillfish/observability-designer/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 observability-designer

Your own site · 80×15
<a href="https://agentmods.dev/skills/johnefemer/skillfish/observability-designer"><img src="https://agentmods.dev/badge/skills/johnefemer/skillfish/observability-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,518 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 unknown 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 $0.00000 $0.02518
Opus 5.5 $0.00000 $0.01007
Sonnet 5.5 $0.00000 $0.00504
Haiku 4.5 $0.00000 $0.00252

Measured 2mo ago against content hash 2986f5694696, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

observability-designer 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 2mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/alert_optimizer.py, scripts/dashboard_generator.py, scripts/slo_designer.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/observability-designer/SKILL.md · 270 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2mo ago First seen · 270 lines · 0 tokens per session scan A 2986f5694696

Subscribe to this mod's changes

observability-designer is a skill published in the GitHub repository johnefemer/skillfish (4 stars, last pushed 4d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 2,518 tokens. 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.

Analytics and metricsCloudDevOps and cloud
Related

observability-designer compared with skills from other repositories

observability-designer next to 6 skills from other repositories
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