observability-readiness

observability-readiness is a skill for Claude Code, Codex from 05-deepak-patidar/claude-skills. It costs 86 tokens per session (1,046 once invoked), scanned A, original, MIT.

A guide for adding logs, measurements, traces, alerts, and audit records to software so production problems can be investigated remotely. Production means the live system used by real customers.

In plain words
What is it for?
Use it when instrumenting a service, preparing a launch, setting up monitoring, or investigating incidents. It covers structured logs, request IDs, metrics, tracing, alerts, and records of important actions.
Why use it?
It helps replace vague reports such as “it is broken” with evidence about what failed, when it started, who was affected, and which dependency or code path caused it.

Skill for Claude CodeCodex

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

Good fit Use it when instrumenting a service, preparing a launch, setting up monitoring, or investigating incidents. It covers structured logs, request IDs, metrics, tracing, alerts, and records of important actions.

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Install with agentmods
npx agentmods add skills/05-deepak-patidar/claude-skills/observability-readiness
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 05-deepak-patidar/claude-skills --skill observability-readiness
Clone the repo
git clone --depth 1 https://github.com/05-deepak-patidar/claude-skills

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-readiness

README.md
[![agentmods](https://agentmods.dev/badge/skills/05-deepak-patidar/claude-skills/observability-readiness/github.svg)](https://agentmods.dev/skills/05-deepak-patidar/claude-skills/observability-readiness)
Your own site
<a href="https://agentmods.dev/skills/05-deepak-patidar/claude-skills/observability-readiness"><img src="https://agentmods.dev/badge/skills/05-deepak-patidar/claude-skills/observability-readiness/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-readiness

Your own site · 80×15
<a href="https://agentmods.dev/skills/05-deepak-patidar/claude-skills/observability-readiness"><img src="https://agentmods.dev/badge/skills/05-deepak-patidar/claude-skills/observability-readiness.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,046 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 $0.00086 $0.01046
Opus 5 $0.00043 $0.00523
Sonnet 5 $0.00017 $0.00209
Haiku 4.5 $0.00009 $0.00105

Measured 11d ago against content hash 06c53c0df03c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

observability-readiness 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 11d 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.

observability-readiness/SKILL.md · 50 lines

How it starts

The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Observability Readiness

You cannot SSH into a bug report. Observability is the difference between "a user says it's broken" and knowing which request, which tenant, which dependency, how often, since which deploy. Instrument as you build — retrofitting during an incident is archaeology.

The standard: every incident answerable in 4 questions

Design instrumentation so that during any incident you can answer, from dashboards/logs alone:

  1. Is it broken? (error rate, health) 2. Since when? (deploy marker, first occurrence) 3. For whom? (which tenant/user/endpoint slice) 4. Because of what? (the failing dependency or code path, with one exemplar request traced end-to-end).

If any question requires adding a log line and redeploying to answer — the instrumentation failed; fix that gap after every incident.

Logging rules

  • Structured (JSON/key-value), always. logger.info("payment_recorded", invoice_id=..., amount=..., tenant=...) — grep-able, filterable, aggregatable. Prose logs are diary entries.
  • Correlation ID on every request: generate/accept a request ID at the edge, carry it through every log line, background job it spawns, and outbound call header. This single habit turns log soup into stories.
  • Levels mean things: ERROR = someone should look (a page-worthy fact, not "user typed wrong password"); WARNING = degraded/retried/suspicious; INFO = business events (order created, login, job completed); DEBUG = off in prod by default. If ERROR fires routinely, alerts die of fatigue.
  • Log the decision points: every request's outcome (status, duration, principal), every external call (target, duration, outcome), every background job (start, outcome, duration), every auth failure with reason.
  • Never log: secrets, tokens, passwords, full card/account numbers, raw PII you don't need (mask: 9000****01). Dev-mock OTP logging must be gated by environment, not habit.
  • Exceptions log with stack trace exactly once, at the level that handles them — catch-log-rethrow at every layer produces 5 copies and 0 clarity.

Read the full file on GitHub · 50 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.

  1. 11d ago First seen · 50 lines · 86 tokens per session scan A 06c53c0df03c

Subscribe to this mod's changes

observability-readiness is a skill published in the GitHub repository 05-deepak-patidar/claude-skills (4 stars, last pushed 2mo ago), licensed MIT. It adds 86 tokens to every session and 1,046 once invoked, about $0.0004 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.