observability-monitoring

observability-monitoring is a skill for Claude Code, Codex from AnastasiyaW/codex-claude-code-config. It costs 109 tokens per session (3,485 once invoked), scanned A, original, MIT.

A guide for designing and checking production monitoring: the measurements, alerts, and investigation steps used to understand whether a service works for users. It covers metrics, logs, traces, service objectives, and incident follow-up.

In plain words
What is it for?
Use it to plan or audit dashboards, service-level objectives, alerts, burn-rate responses, cardinality limits, troubleshooting workflows, and postmortems.
Why use it?
It prevents teams from treating a green dashboard as proof that everything is healthy. It connects each monitoring claim to a user outcome, measurement, threshold, and next action.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present. Also seen: mentions AGENTS.md.

Part of the claude-code-config plugin — 57 skills, 8 agents shipped together

Good fit Use it to plan or audit dashboards, service-level objectives, alerts, burn-rate responses, cardinality limits, troubleshooting workflows, and postmortems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/anastasiyaw/codex-claude-code-config/observability-monitoring
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 AnastasiyaW/codex-claude-code-config --skill observability-monitoring
Clone the repo
git clone --depth 1 https://github.com/AnastasiyaW/codex-claude-code-config

Made for: Claude Code, Codex.

Or install claude-code-config, the plugin that ships this one along with the rest of its 57 skills, 8 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.

agentmods badge for observability-monitoring

README.md
[![agentmods](https://agentmods.dev/badge/skills/anastasiyaw/codex-claude-code-config/observability-monitoring/github.svg)](https://agentmods.dev/skills/anastasiyaw/codex-claude-code-config/observability-monitoring)
Your own site
<a href="https://agentmods.dev/skills/anastasiyaw/codex-claude-code-config/observability-monitoring"><img src="https://agentmods.dev/badge/skills/anastasiyaw/codex-claude-code-config/observability-monitoring/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-monitoring

Your own site · 80×15
<a href="https://agentmods.dev/skills/anastasiyaw/codex-claude-code-config/observability-monitoring"><img src="https://agentmods.dev/badge/skills/anastasiyaw/codex-claude-code-config/observability-monitoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,485 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, 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 Excessive Agency · line 190
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00109 $0.03485
Opus 5 $0.00055 $0.01742
Sonnet 5 $0.00022 $0.00697
Haiku 4.5 $0.00011 $0.00348

Measured 12d ago against content hash 164724027cf4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

observability-monitoring 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 12d 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.

skills/operational/observability-monitoring/SKILL.md · 243 lines

How it starts

The opening of the file, as written. The whole thing — 243 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Observability Monitoring

Use this skill to turn vague "is it working?" questions into evidence-backed monitoring, alerting, and incident workflows. Start from user or business impact, then move down through the system layers and choose the signal that can prove the current hypothesis.

Operating rule

Do not treat a green dashboard as proof of health. A monitoring claim is complete only when it names:

  1. the observed scope and time window;
  2. the user, business, or operator outcome being protected;
  3. the signal and exact query/probe that supports the claim;
  4. the threshold or SLO that defines bad;
  5. the next human action and its runbook/evidence link.

Keep code review, live runtime proof, UI/render proof, and release readiness as separate verdicts.

Investigation is read-only by default. A restart, alert suppression, metric-schema/label change, sampling or retention change, or vendor reconfiguration is a production mutation: involve the responsible owner or incident authority, preserve the relevant evidence first, capture the exact config/command diff, state the rollback condition, and verify the user probe plus SLI after the change.

Workflow

1. Freeze scope and collect live facts

Before changing a monitor, alert, host, or service:

  • Read the repository AGENTS.md, relevant rules, runbooks, and deployment docs.
  • Establish the actual checkout/branch, deployment, process, host, port, proxy/tunnel, and data source.
  • Record the observation time, environment, query/probe, and whether the result is current or historical.
  • Inspect the source code/config that emits or consumes the signal before changing it.
  • Never infer health from an old screenshot, a stale handoff, a single PID, or a dashboard with no successful user probe.

For infrastructure fixes, document the traffic path (DNS, proxy, tunnel, ingress, service, backend) before touching a surprising value such as 127.0.0.1, a non-default port, or a disabled check.

2. Define the outcome before the metric

Read the full file on GitHub · 243 lines

Files

What ships with it

2 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. 12d ago First seen · 243 lines · 109 tokens per session scan A 164724027cf4

Subscribe to this mod's changes

observability-monitoring is a skill published in the GitHub repository AnastasiyaW/codex-claude-code-config (150 stars, last pushed 4d ago), licensed MIT. It adds 109 tokens to every session and 3,485 once invoked, about $0.0005 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.