kafka-schema-registry

kafka-schema-registry is a skill for Claude Code, Codex from Kilo-Org/kilo-marketplace. It costs 77 tokens per session (2,344 once invoked), scanned A, original, Apache-2.0.

A guide for examining Kafka applications and extracting the message schemas they use, with support for Avro, JSON Schema, and Protobuf formats.

In plain words
What is it for?
Use it to audit Kafka producers and consumers, generate schema files and Terraform registration code, and plan migrations.
Why use it?
It helps teams document event data, identify personally identifiable information, and prepare schemas for Confluent Schema Registry, a service that manages shared message definitions.

Skill for Claude CodeCodex

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

Good fit Use it to audit Kafka producers and consumers, generate schema files and Terraform registration code, and plan migrations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kilo-org/kilo-marketplace/kafka-schema-registry
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 Kilo-Org/kilo-marketplace --skill kafka-schema-registry
Clone the repo
git clone --depth 1 https://github.com/Kilo-Org/kilo-marketplace

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 kafka-schema-registry

README.md
[![agentmods](https://agentmods.dev/badge/skills/kilo-org/kilo-marketplace/kafka-schema-registry/github.svg)](https://agentmods.dev/skills/kilo-org/kilo-marketplace/kafka-schema-registry)
Your own site
<a href="https://agentmods.dev/skills/kilo-org/kilo-marketplace/kafka-schema-registry"><img src="https://agentmods.dev/badge/skills/kilo-org/kilo-marketplace/kafka-schema-registry/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 kafka-schema-registry

Your own site · 80×15
<a href="https://agentmods.dev/skills/kilo-org/kilo-marketplace/kafka-schema-registry"><img src="https://agentmods.dev/badge/skills/kilo-org/kilo-marketplace/kafka-schema-registry.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,344 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 pass 7 Sept 2026
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 $0.00077 $0.02344
Opus 5 $0.00039 $0.01172
Sonnet 5 $0.00015 $0.00469
Haiku 4.5 $0.00008 $0.00234

Measured 8d ago against content hash 4a18a06e326e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

kafka-schema-registry 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 8d ago.

The scan reads SKILL.md. This mod also ships 9 executable files (evals/mock-repos/acme-services/inventory-service/src/producer.py, evals/mock-repos/acme-services/reporting-service/src/consumer.py, evals/mock-repos/api-gateway/src/middleware.js, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/kafka-schema-registry/SKILL.md · 258 lines

How it starts

The opening of the file, as written. The whole thing — 258 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kafka Schema Registry Skill

Scan a project to identify Kafka applications, extract schemas, generate Terraform for Schema Registry registration, and produce a comprehensive analysis report.

When to Use

Invoke this skill when:

  • A user asks to analyze a project for Kafka usage in order to add event schemas or integrate Schema Registry
  • A user wants to extract schemas from Kafka producers
  • A user wants Terraform to register schemas to Schema Registry
  • A user wants to audit Kafka producer/consumer configurations

Deliverables

This skill produces 3 outputs in the target project:

  1. schema-report.md — Full analysis report with findings, risks, and upgrade recommendations
  2. schemas/ — Extracted schema files (Avro, JSON Schema, Protobuf) with PII tagging
  3. terraform/ — Terraform configs using Confluent provider to register schemas

Optional: Code Migration Assistance

If the user asks for their application code to be updated to integrate Schema Registry, use the Code Migration Reference to update the code with proper Schema Registry integration patterns.


High-Level Workflow

Phase 0: Initialize

  • Check for existing schema.yaml and schemas/ directory manually
  • Note any existing schema infrastructure in the report

Phase 1: Project Scan & Kafka Detection

  1. Find build files — Search for pom.xml, build.gradle, requirements.txt, package.json, etc.
  2. Detect Kafka dependencies — Look for spring-kafka, confluent-kafka, kafkajs, etc.
  3. Find producers & consumers — Grep for KafkaTemplate, Producer(, producer.send, etc.
  4. Extract topic names — From string literals, config properties, YAML files
  5. Identify serializers — Find value.serializer, KafkaAvroSerializer, custom serializers
  6. Build app catalog — Compile findings: app name, language, role, topics, serializer, category

Detailed patterns: Detection Patterns Reference

Read the full file on GitHub · 258 lines

Files

What ships with it

51 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. 8d ago First seen · 258 lines · 77 tokens per session scan A 4a18a06e326e

Subscribe to this mod's changes

kafka-schema-registry is a skill published in the GitHub repository Kilo-Org/kilo-marketplace (175 stars, last pushed 22d ago), licensed Apache-2.0. It adds 77 tokens to every session and 2,344 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 2026-09-03.

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