confluent-skill-creator

confluent-skill-creator is a skill for Claude Code from confluentinc/agent-skills. It costs 168 tokens per session (5,388 once invoked), scanned A, original, Apache-2.0.

A skill for creating Confluent-related agent skills, covering products and technologies such as Apache Kafka, Flink, Connectors, and Schema Registry.

In plain words
What is it for?
Authoring skills for Confluent Cloud, Confluent Platform, WarpStream, data pipelines, schema work, and related streaming tasks.
Why use it?
It gives skill authors guidance for choosing platform scope, handling credentials, testing against real environments, and following the Agent Skills specification.

Skill for Claude Code ✓ vendor

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the streaming-skills-plugin plugin — 16 skills shipped together

Good fit Authoring skills for Confluent Cloud, Confluent Platform, WarpStream, data pipelines, schema work, and related streaming tasks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/confluentinc/agent-skills/confluent-skill-creator
About the project

AI Agent Skills by Confluent is a collection of skills for building Kafka producers, Flink applications, and real-time data-streaming pipelines. Developers use it with coding assistants when creating applications and pipelines on Confluent. The catalogue entries are its skills, plugin, and instruction.

confluentinc/agent-skills · 55 stars · on GitHub

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 confluentinc/agent-skills --skill confluent-skill-creator
Clone the repo
git clone --depth 1 https://github.com/confluentinc/agent-skills

Made for: Claude Code.

Or install streaming-skills-plugin, the plugin that ships this one along with the rest of its 16 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 confluent-skill-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/confluentinc/agent-skills/confluent-skill-creator.svg)](https://agentmods.dev/skills/confluentinc/agent-skills/confluent-skill-creator)
Your own site
<a href="https://agentmods.dev/skills/confluentinc/agent-skills/confluent-skill-creator"><img src="https://agentmods.dev/badge/skills/confluentinc/agent-skills/confluent-skill-creator.svg" alt="Measured on agentmods" height="20"></a>
Per session 168 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,388 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 warn 7 Sept 2026
SkillSpector: 14 findings, up to high

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 →

  • high Privilege Escalation · line 20
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 334
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Rogue Agent · line 156
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
  • high Privilege Escalation · line 255
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 287
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 289
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 290
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 292
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 293
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 300
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 410
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium Excessive Agency · line 194
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Agent Snooping · line 58
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Excessive Agency · line 355
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00168 $0.05388
Opus 5 $0.00084 $0.02694
Sonnet 5 $0.00034 $0.01078
Haiku 4.5 $0.00017 $0.00539

Measured 8d ago against content hash f310809a8b7f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

confluent-skill-creator 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 5 executable files (scripts/check_compute_pool.py, scripts/cleanup_resources.py, scripts/consume_and_verify.py, …), 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.

skills/confluent-skill-creator/SKILL.md · 435 lines

How it starts

The opening of the file, as written. The whole thing — 435 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Confluent Skill Creator

A specialized skill creator for building Confluent product skills that are tested against real Confluent environments (local, platform, cloud, or WarpStream).

This skill extends the base skill-creator workflow with Confluent-specific requirements:

  • Flexible scope: Skills can be use-case focused (e.g., "CDC from PostgreSQL to Iceberg") or component-specific (e.g., "Flink SQL skill", "Schema Registry skill")
  • Platform targeting: Skills either target a specific platform (named in the skill) or support all platforms with platform-specific reference files
  • Environment testing: Real E2E tests against local Confluent, Confluent Platform, Confluent Cloud, or WarpStream
  • Safe CRUD operations: Show full plan and get confirmation before creating/modifying Confluent resources
  • Credential management: Proper .env file setup for all required credentials
  • Spec compliance: Created skills validated against the Agent Skills specification
  • Smart defaults: Schema Registry with JSON_SR (schema GUID in header) by default

Prerequisites

  • Python 3.9+
  • confluent-kafka[avro,json,protobuf], requests, jsonschema, python-dotenv Python packages (see scripts/requirements.txt)
  • Access to a Confluent environment (Cloud, Platform, local Docker, or WarpStream) for E2E testing

When to use this skill

Use this skill when a user wants to create a skill for external users that involves:

  • Kafka topics, producers, consumers, or streaming applications
  • Flink SQL or stream processing
  • Connectors (Debezium CDC, sink connectors, etc.)
  • Schema Registry (Avro, JSON Schema, Protobuf)
  • Tableflow for data lake integration
  • CDC pipelines from databases to data lakes
  • Real-time data enrichment or transformation

Core Workflow

  1. Understand scope and platform targeting (Confluent-specific)
  2. Capture intent and interview
  3. Write the skill draft
  4. Validate spec compliance (Confluent-specific)
  5. Set up test environment and credentials (Confluent-specific)
  6. Create test cases and run E2E tests (Confluent-specific)
  7. Evaluate with viewer
  8. Iterate until satisfied
  9. Optimize description
  10. Package and deliver

Read the full file on GitHub · 435 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. 8d ago First seen · 435 lines · 168 tokens per session scan A f310809a8b7f

Subscribe to this mod's changes

confluent-skill-creator is a skill published in the GitHub repository confluentinc/agent-skills (55 stars, last pushed 4d ago), licensed Apache-2.0. It adds 168 tokens to every session and 5,388 once invoked, about $0.0008 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 2026-08-30.

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