dedup-openai

dedup-openai is a skill for Claude Code, Codex from Azure/azure-sdk-for-java. It costs 38 tokens per session (2,717 once invoked), scanned A, original, MIT.

A procedure for preventing generated Java classes from duplicating models already provided by the openai-java library. It replaces eligible generated models with the library's versions while preserving manual JSON serialization links.

In plain words
What is it for?
Use it after duplicate classes have been identified, when the project meets the required TypeSpec, dependency, and model conditions.
Why use it?
It avoids maintaining two equivalent versions of the same Java models and prevents incorrect changes to models that require special type handling.

Skill for Claude CodeCodex

About the project

Azure SDK for Java is a collection of Java libraries that let applications connect to and manage Azure services. Java developers use its client libraries to consume services and its management libraries to configure Azure resources. The catalogue add-ons support development with these libraries.

Azure/azure-sdk-for-java · 2,566 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.

agentmods
npx agentmods add skills/azure/azure-sdk-for-java/dedup-openai
Any agent
npx skills add Azure/azure-sdk-for-java --skill dedup-openai
Clone the repo
git clone --depth 1 https://github.com/Azure/azure-sdk-for-java

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 dedup-openai

README.md
[![agentmods](https://agentmods.dev/badge/skills/azure/azure-sdk-for-java/dedup-openai.svg)](https://agentmods.dev/skills/azure/azure-sdk-for-java/dedup-openai)
Your own site
<a href="https://agentmods.dev/skills/azure/azure-sdk-for-java/dedup-openai"><img src="https://agentmods.dev/badge/skills/azure/azure-sdk-for-java/dedup-openai.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,717 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00038 $0.02717
Opus 5 $0.00019 $0.01358
Sonnet 5 $0.00008 $0.00543
Haiku 4.5 $0.00004 $0.00272

Measured 5d ago against content hash db9f9258a9ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dedup-openai 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 5d 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.

sdk/ai/.workflow_docs/dedup-openai/SKILL.md · 253 lines

How it starts

The opening of the file, as written. The whole thing — 253 lines — stays where its author put it; the contents beside it link to each section on GitHub.

De-duplicate Generated Classes Against openai-java

Use this skill after the dup-classes skill has identified actionable duplicates. This skill suppresses the generated classes and bridges to the openai-java equivalents.

Preconditions

  • A tsp-location.yaml must exist in the current directory.
  • TypeSpec must be synced (tsp-client sync) so TempTypeSpecFiles/ exists.
  • The openai-java dependency must be in the project's pom.xml.
  • You must know which classes to suppress (use dup-classes skill first).

Key concepts

What can be suppressed

Only standalone models that don't participate in a discriminator hierarchy. A model is standalone if:

  • It does NOT extend Tool, TextResponseFormatConfiguration, or another base class with a fromJson discriminator
  • It is NOT a subtype dispatched by a parent's fromJson method

What cannot be suppressed

Structural equivalents — classes that extend a base type in a discriminator hierarchy (e.g., FunctionTool extends Tool). The SDK's polymorphic serialization requires these. They produce identical JSON but are not actionable. Do NOT attempt to suppress them.

Two suppression mechanisms

Mechanism When to use Effect
@@alternateType(OpenAI.X, { identity: "com.openai.models.X" }, "java") The model is referenced as a field type or union member in other models Codegen replaces the type with the openai-java class. The generated class is NOT emitted at all.
@@access(OpenAI.X, Access.internal, "java") The model is NOT referenced by any public model Codegen moves the class to implementation.models.

Prefer @@alternateType — it fully prevents emission and is the cleanest approach. Use @@access(internal) only as a supplement when a model isn't reachable through the type graph but is still emitted.

Why @@access(internal) alone may not work

If a model is referenced by a union or property in a public model, @@access(internal) will NOT move it. The codegen keeps it public because removing it would break the type graph. Example: ComparisonFilter is a member of the Filters union used by FileSearchTool.filters@@access(internal) has no effect, but @@alternateType prevents emission entirely.

Read the full file on GitHub · 253 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. 5d ago First seen · 253 lines · 38 tokens per session scan A db9f9258a9ad

Subscribe to this mod's changes

dedup-openai is a skill published in the GitHub repository Azure/azure-sdk-for-java (2,566 stars, last pushed today), licensed MIT. It adds 38 tokens to every session and 2,717 once invoked, about $0.0002 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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