loki

loki is a skill for Claude Code, Codex from julianobarbosa/claude-code-skills. It costs 68 tokens per session (3,904 once invoked), scanned A, original, MIT.

A guide for configuring Grafana Loki, a system that collects and searches application logs. Loki stores compressed log data and organizes it with labels, while LogQL is its query language.

In plain words
What is it for?
Use it to deploy Loki with Helm, configure S3, Azure Blob, or Google Cloud Storage, write LogQL queries, set retention and compaction, and connect Loki with OpenTelemetry.
Why use it?
It helps plan and operate log collection without having to piece together storage, querying, retention, and scaling settings. It covers common cloud storage and deployment environments.

Skill for Claude CodeCodex

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

Good fit Use it to deploy Loki with Helm, configure S3, Azure Blob, or Google Cloud Storage, write LogQL queries, set retention and compaction, and connect Loki with OpenTelemetry.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/julianobarbosa/claude-code-skills/loki
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 julianobarbosa/claude-code-skills --skill loki
Clone the repo
git clone --depth 1 https://github.com/julianobarbosa/claude-code-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 loki

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/julianobarbosa/claude-code-skills/loki"><img src="https://agentmods.dev/badge/skills/julianobarbosa/claude-code-skills/loki.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,904 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
SkillSpector: 1 finding, up to low

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 →

  • low Privilege Escalation · line 486
    Skill requests more permissions than appear necessary for its stated functionality. Review if elevated access is justified.
    Fix: Request only the minimum permissions required. Document why each permission is needed. Remove broad permissions like '*' or 'all'.
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 $0.00068 $0.03904
Opus 5 $0.00034 $0.01952
Sonnet 5 $0.00014 $0.00781
Haiku 4.5 $0.00007 $0.00390

Measured 9d ago against content hash 0daff67e3637, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

loki scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -H "X-Scope-OrgID: tenant-a" \
skills/loki/SKILL.md · 652 lines

How it starts

The opening of the file, as written. The whole thing — 652 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Grafana Loki Skill

Comprehensive guide for Grafana Loki - the cost-effective, horizontally-scalable log aggregation system inspired by Prometheus.

What is Loki?

Loki is a horizontally-scalable, highly-available, multi-tenant log aggregation system that:

  • Indexes only metadata (labels) - Not full log content like traditional systems
  • Stores compressed chunks in affordable object storage (S3, GCS, Azure Blob)
  • Uses Prometheus-style labels for organizing log streams
  • Multi-tenant by default with built-in tenant isolation
  • Cost-efficient - Dramatically smaller index and lower operational costs

Architecture Overview

Core Components

Component Purpose
Distributor Validates requests, preprocesses labels, routes to ingesters
Ingester Buffers logs in memory, compresses into chunks, writes to storage
Querier Executes LogQL queries from ingesters and storage
Query Frontend Accelerates queries via splitting, caching, scheduling
Query Scheduler Manages per-tenant query queues for fairness
Index Gateway Serves index queries for TSDB stores
Compactor Merges index files, manages retention, handles deletion
Ruler Evaluates alerting and recording rules

Data Flow

Write Path:

Log Source → Distributor → Ingester → Object Storage
                                    ↓
                              Chunks + Indexes

Read Path:

Query → Query Frontend → Query Scheduler → Querier
                                             ↓
                                    Ingesters + Storage

Deployment Modes

1. Monolithic Mode (-target=all)

  • All components in single process
  • Best for: Initial experimentation, small-scale (~20GB logs/day)
  • Simplest approach

2. Simple Scalable Deployment (SSD) - Recommended Default

deploymentMode: SimpleScalable

write:
  replicas: 3   # Distributor + Ingester

read:
  replicas: 2   # Query Frontend + Querier

backend:
  replicas: 2   # Compactor + Index Gateway + Query Scheduler + Ruler

Read the full file on GitHub · 652 lines

Files

What ships with it

3 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 · 652 lines · 68 tokens per session scan A 0daff67e3637

Subscribe to this mod's changes

loki is a skill published in the GitHub repository julianobarbosa/claude-code-skills (10 stars, last pushed 13d ago), licensed MIT. It adds 68 tokens to every session and 3,904 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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