rhdh-overlay

rhdh-overlay is a skill for Claude Code, Codex from redhat-developer/rhdh-skills. It costs 136 tokens per session (1,129 once invoked), scanned A, original, Apache-2.0.

A set of procedures for maintaining the Red Hat Developer Hub plugin export overlays repository and its extensions catalogue. An overlay repository stores catalogue metadata and changes applied to upstream plugins.

In plain words
What is it for?
Use it to inspect repository health, update source metadata, diagnose export or publish failures, classify pull requests, analyze a pull request, draft stale-PR notices, and trigger publishing.
Why use it?
It gives you defined checks and workflows for handling plugin onboarding, version updates, failed exports, publishing problems, and open pull requests.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the plugins plugin — 17 skills shipped together

Good fit Use it to inspect repository health, update source metadata, diagnose export or publish failures, classify pull requests, analyze a pull request, draft stale-PR notices, and trigger publishing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/redhat-developer/rhdh-skills/rhdh-overlay
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 redhat-developer/rhdh-skills --skill rhdh-overlay
Clone the repo
git clone --depth 1 https://github.com/redhat-developer/rhdh-skills

Made for: Claude Code, Codex.

Or install plugins, the plugin that ships this one along with the rest of its 17 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 rhdh-overlay

README.md
[![agentmods](https://agentmods.dev/badge/skills/redhat-developer/rhdh-skills/rhdh-overlay/github.svg)](https://agentmods.dev/skills/redhat-developer/rhdh-skills/rhdh-overlay)
Your own site
<a href="https://agentmods.dev/skills/redhat-developer/rhdh-skills/rhdh-overlay"><img src="https://agentmods.dev/badge/skills/redhat-developer/rhdh-skills/rhdh-overlay/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 rhdh-overlay

Your own site · 80×15
<a href="https://agentmods.dev/skills/redhat-developer/rhdh-skills/rhdh-overlay"><img src="https://agentmods.dev/badge/skills/redhat-developer/rhdh-skills/rhdh-overlay.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 136 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,129 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 $0.00136 $0.01129
Opus 5 $0.00068 $0.00564
Sonnet 5 $0.00027 $0.00226
Haiku 4.5 $0.00014 $0.00113

Measured 8d ago against content hash e2269a4fd1ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

rhdh-overlay 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 2 executable files (scripts/analyze-pr.py, scripts/triage-prs.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/plugins/rhdh-overlay/SKILL.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

RHDH Overlay

Own catalog packaging and overlay-repository operations. Work from a checkout whose remote identifies redhat-developer/rhdh-plugin-export-overlays; do not depend on another installed skill's files or CLI.

Start here

  1. Read repository instructions and run gh auth status.
  2. Confirm the checkout and remote with git remote -v.
  3. Inspect the target workspace, a similar workspace, and the relevant PR or CI logs before changing metadata.
  4. For environment problems, follow workflows/doctor.md.

Route by outcome

Outcome Load and follow
Onboard a plugin workflows/onboard-plugin.md
Update source version or commit workflows/update-plugin.md
Diagnose an export or publish failure workflows/fix-build.md
Check workspace status references/overlay-repo.md, then inspect workspace files and recent gh runs
Triage the open PR backlog workflows/triage-prs.md; use scripts/triage-prs.py for deterministic classification
Analyze one overlay PR workflows/analyze-pr.md; use scripts/analyze-pr.py
Draft stale-PR notifications workflows/draft-notification.md
Trigger publish Run the guarded publish procedure below

Infer a clear route. Ask only for a missing plugin, workspace, source ref, or PR number that cannot be discovered from the checkout.

Invariants

  • Every export is configured in the overlay repository; CI performs the export.
  • source.json repo-backstage-version is the upstream source's actual Backstage version. backstage.json version is the RHDH compatibility override. Never substitute one for the other.
  • Derive packages and refs from upstream and generated metadata; never invent an OCI URL.
  • Copy the structure of a current, similar workspace when repository conventions differ from this skill's examples.
  • Before merge, test the exact PR artifact. Authentication errors from an otherwise loaded plugin may be acceptable; installation or boot errors are not.

Read the full file on GitHub · 113 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 · 113 lines · 136 tokens per session scan A e2269a4fd1ad

Subscribe to this mod's changes

rhdh-overlay is a skill published in the GitHub repository redhat-developer/rhdh-skills (16 stars, last pushed 5d ago), licensed Apache-2.0. It adds 136 tokens to every session and 1,129 once invoked, about $0.0007 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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