Observability Engineering Agent Skill

Designs, implements, and audits structured logging, low-cardinality metrics, distributed tracing, and incident-focused telemetry.

Context cost
550 tokensestimated from the bundle, loaded when it triggers
Bundle
1 file · 2.2 kBtext throughout, nothing executable
Licence
MITthe author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

Design, implement, or review application observability with actionable logs, metrics, traces, health signals, privacy-aware telemetry, and incident-focused verification. Use when instrumenting services or diagnosing production behavior.

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

analyticsloggingobservability

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md2.2 kB · preview
--- name: observability ---
6# Observability Engineering
7
8## 使用范围
9
10用于设计或改进日志、指标、链路追踪、健康检查和故障诊断。先确认系统目标、关键用户路径、现有遥测后端、采样策略和数据保留限制;不要把某个监控供应商或仪表库当作通用前提。
11
12## 工作方式
13
14- 从可行动的问题出发:服务是否可用、某条业务路径是否退化、失败发生在哪一层、资源是否接近瓶颈。先定义这些信号,再决定日志、指标或 trace 哪一种最合适。
15- 为一次请求或任务建立可传播的关联标识,并在服务边界、队列消息和后台任务中保留上下文。字段名和状态分类要稳定,便于跨服务检索与聚合。
16- 结构化日志应描述事件、结果和足以定位的上下文,而非重复记录控制流。不得记录密码、令牌、完整个人数据或未经审查的请求体;必要的标识应脱敏或最小化。
17- 指标命名反映业务或系统语义,标签保持低基数。用户 ID、订单号、完整 URL、异常文本等高基数字段不应成为 metric label,应放入受控日志或 trace。
18- trace 记录跨边界耗时、错误和采样语义;对高吞吐路径使用可解释的采样与错误保留策略,避免为了可观测性本身造成显著成本或性能退化。
19- 健康检查区分进程存活、服务就绪和关键依赖可用性。告警应能指向用户影响和处置路径,而不只是单个瞬时阈值。
20- 通过实际查询、测试流量或受控故障验证新信号能回答原问题。生产排障操作要先确认环境、查询范围和访问权限。
21
22## 交付与边界
23
24输出应列出观测目标、事件/指标/trace 契约、隐私处理、采样或保留影响、仪表位置和验证结果。告警阈值、供应商配置和运行手册以项目或平台实际约定为准。
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md65 words
Files1
LicenceMIT
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈70
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
480
on trigger
The instruction body, read only when the skill fires.
0.27%
of a 200k window
Ten skills this size would take about 3% of the window before you open a file.
050k100k150k200k context window

550 tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Small enough to keep loaded permanently without thinking about it.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

1 file, 2.2 kB on disk. A bundle is text throughout: the instructions the model reads, plus the templates it fills in.

  • SKILL.md2.2 kB
What is not in it

No dependencies and nothing executable: a skill is text the agent reads, so the bundle is 1 file you can review in full before installing. The MIT licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Observability Engineering · 550 tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/observability-engineering/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/observability-engineering" ] && { [ ! -e .claude/skills/observability-engineering ] || { mv .claude/skills/observability-engineering "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/observability-engineering" .claude/skills/ && echo "Installed .claude/skills/observability-engineering"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add weiweimhy/observability-engineering

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/observability-engineering/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/observability-engineering/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/observability-engineering" ] && { [ ! -e ~/.claude/skills/observability-engineering ] || { mv ~/.claude/skills/observability-engineering "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/observability-engineering" ~/.claude/skills/ && echo "Installed ~/.claude/skills/observability-engineering" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/observability-engineering/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where. It appears as observability in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, observability-engineering.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referenceweiweimhy/observability-engineering

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

Reviews

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