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kora-telemetry-logging

kora-telemetry-logging is a skill for Claude Code from kora-projects/kora-skills. It costs 70 tokens per session (3,069 once invoked), scanned A, original, Apache-2.0.

A logging guide for Kora, a Java and Kotlin service framework. It covers SLF4J and Logback, which record application events, plus structured fields and request context.

In plain words
What is it for?
Use it when configuring Kora logging, JSON output, per-package log levels, structured key-value fields, MDC context, asynchronous logging, or method logging with Kora annotations.
Why use it?
It helps developers configure consistent text or JSON logs, control log levels, and keep useful context attached to records.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is **Kora sub-skill — obey the [kora-v1 meta rules](../../SKILL.md) on every task:** **R0** ensure `.kora-agent/` docs+examples are cloned · **R1** read this sub-s.

Part of the kora-v1 plugin — 41 skills shipped together

not rated 1repo 8d ago A scan 70 tokens original Apache-2.0

Good fit Use it when configuring Kora logging, JSON output, per-package log levels, structured key-value fields, MDC context, asynchronous logging, or method logging with Kora annotations.

Compare 6 skills from other repositories ↓
View source ↗ kora-projects/kora-skills kora-projects.github.io
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/kora-projects/kora-skills
agentmods
npx agentmods add skills/kora-projects/kora-skills/kora-telemetry-logging

Made for: Claude Code.

Or install kora-v1, the plugin that ships this one along with the rest of its 41 skills.

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 kora-telemetry-logging

README.md
[![agentmods](https://agentmods.dev/badge/skills/kora-projects/kora-skills/kora-telemetry-logging/github.svg)](https://agentmods.dev/skills/kora-projects/kora-skills/kora-telemetry-logging)
Your own site
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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 kora-telemetry-logging

Your own site · 80×15
<a href="https://agentmods.dev/skills/kora-projects/kora-skills/kora-telemetry-logging"><img src="https://agentmods.dev/badge/skills/kora-projects/kora-skills/kora-telemetry-logging.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,069 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 $0.00070 $0.03069
Opus 5 $0.00035 $0.01535
Sonnet 5 $0.00014 $0.00614
Haiku 4.5 $0.00007 $0.00307

Measured 9d ago against content hash 935015b460dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

kora-telemetry-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 9d 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.

plugins/kora-v1/skills/kora-telemetry-logging/SKILL.md · 298 lines

How it starts

The opening of the file, as written. The whole thing — 298 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kora Telemetry Logging

Kora sub-skill — obey the kora-v1 meta rules on every task: R0 ensure .kora-agent/ docs+examples are cloned · R1 read this sub-skill before writing code · R2 Kora APIs only — no Spring/Micronaut/Quarkus, no invented annotations or config keys · R3 journal any incorrect Kora usage. Add comments/Javadoc only if asked.

Kora uses slf4j-api as the logging facade for the whole framework; the recommended implementation is Logback via LogbackModule. On top of SLF4J, Kora adds structured arguments, a structured MDC, config-driven log levels, and the KoraAsyncAppender for non-blocking output that correctly propagates structured MDC.

When to use

  • Add Logback to a Kora service and pick text vs JSON output.
  • Set per-package log levels from config (logging.levels) instead of only logback.xml.
  • Enable per-module telemetry logging (*.telemetry.logging.enabled).
  • Attach structured key/values to log records (StructuredArgument, Kora MDC).
  • Log method arguments/results declaratively with @Log, or enrich MDC with @Mdc.

Source of truth

Topic Path
SLF4J / Logback / structured logs / MDC .kora-agent/kora-docs/mkdocs/docs/en/documentation/logging-slf4j.md
@Log / @Mdc aspects .kora-agent/kora-docs/mkdocs/docs/en/documentation/logging-aspect.md
End-to-end observability guide .kora-agent/kora-docs/mkdocs/docs/en/guides/observability.md
Example apps .kora-agent/kora-examples/examples/java/kora-java-telemetry, .kora-agent/kora-examples/guides/java/kora-java-guide-observability-app

Quick Start

1. Dependencies

The kora-parent BOM manages all Kora versions; never pin a version on an individual ru.tinkoff.kora:* artifact. The annotation processor is mandatory.

dependencies {
    koraBom platform("ru.tinkoff.kora:kora-parent:1.2.19")
    annotationProcessor "ru.tinkoff.kora:annotation-processors"   // Java; Kotlin: ksp "ru.tinkoff.kora:symbol-processors"

    implementation "ru.tinkoff.kora:logging-logback"   // SLF4J + Logback implementation, pulls in logging-common
    implementation "ru.tinkoff.kora:config-hocon"      // log levels live in the Kora config
}

Read the full file on GitHub · 298 lines

Files

What ships with it

16 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. 9d ago First seen · 298 lines · 70 tokens per session scan A 935015b460dd

Subscribe to this mod's changes

kora-telemetry-logging is a skill published in the GitHub repository kora-projects/kora-skills (1 stars, last pushed 8d ago), licensed Apache-2.0. It adds 70 tokens to every session and 3,069 once invoked, about $0.0003 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.

Analytics and metricsDebuggingblazing-fastcompile-timeframeworkkoraproxy-freereflection-free
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