observability-and-logging

observability-and-logging is a skill for Claude Code, Codex from New1Direction/korgex. It costs 19 tokens per session (340 once invoked), scanned A, original, MIT.

A code-instrumentation guide for making production failures easier to diagnose through structured logs, metrics, and related request or trace identifiers.

In plain words
What is it for?
Use it to add useful event logs, choose appropriate log levels, connect related events, record actionable error context, and measure health and latency.
Why use it?
It helps developers understand what failed and why without filling logs with noise or exposing secrets and personal data.

Skill for Claude CodeCodex

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

Good fit Use it to add useful event logs, choose appropriate log levels, connect…

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Install with agentmods
npx agentmods add skills/new1direction/korgex/observability-and-logging
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 New1Direction/korgex --skill observability-and-logging
Clone the repo
git clone --depth 1 https://github.com/New1Direction/korgex

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-and-logging

README.md
[![agentmods](https://agentmods.dev/badge/skills/new1direction/korgex/observability-and-logging.svg)](https://agentmods.dev/skills/new1direction/korgex/observability-and-logging)
Your own site
<a href="https://agentmods.dev/skills/new1direction/korgex/observability-and-logging"><img src="https://agentmods.dev/badge/skills/new1direction/korgex/observability-and-logging.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 340 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 $0.00019 $0.00340
Opus 5 $0.00010 $0.00170
Sonnet 5 $0.00004 $0.00068
Haiku 4.5 $0.00002 $0.00034

Measured 6d ago against content hash 0d6dffd8b452, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

observability-and-logging 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 6d 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.

src/skills_builtin/observability-and-logging/SKILL.md · 28 lines

What it actually says

You can't fix what you can't see. Good observability is the difference between a five-minute diagnosis and an all-night guess — but noisy logging is its own problem.

  1. Log events, not narration. Record meaningful state transitions, decisions, and errors — not "entering function". Each log line should help answer "what happened and why" later.
  2. Use levels deliberately. ERROR = needs attention; WARN = recoverable oddity; INFO = significant lifecycle events; DEBUG = detail for diagnosis. Don't log everything at INFO.
  3. Make logs structured + correlatable. Prefer key/value (or JSON) over prose so they're searchable; carry an id (request/trace/session) through related lines so one flow can be reconstructed.
  4. Include the context to act. On an error, log what was being attempted, the key inputs, and the cause — enough to reproduce. A bare "failed" is useless.
  5. NEVER log secrets or PII. Tokens, passwords, keys, personal data must not hit logs. Redact at the boundary.
  6. Metrics for the steady state, logs for the incident. Count/timing for rates and latency (the "is it healthy?"); detailed logs for the "why did THIS fail?".
  7. Fail-safe: instrumentation must never crash or materially slow the path it measures.
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. 6d ago First seen · 28 lines · 19 tokens per session scan A 0d6dffd8b452

Subscribe to this mod's changes

observability-and-logging is a skill published in the GitHub repository New1Direction/korgex (5 stars, last pushed 2mo ago), licensed MIT. It adds 19 tokens to every session and 340 once invoked, about $0.0001 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 2026-08-31.

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