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.
npx skills add redhat-developer/rhdh-skills --skill rhdh-overlaygit clone --depth 1 https://github.com/redhat-developer/rhdh-skillsWrote 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.
[](https://agentmods.dev/skills/redhat-developer/rhdh-skills/rhdh-overlay)<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.
<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>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once 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 |
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.
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.
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
- Read repository instructions and run
gh auth status. - Confirm the checkout and remote with
git remote -v. - Inspect the target workspace, a similar workspace, and the relevant PR or CI logs before changing metadata.
- 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.jsonrepo-backstage-versionis the upstream source's actual Backstage version.backstage.jsonversionis 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.
What ships with it
16 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.
- agents/openai.yaml 115 B
- references/ci-feedback.md 3.1 KB
- references/label-priority.md 4.1 KB
- references/metadata-format.md 2.6 KB
- references/overlay-repo.md 2.8 KB
- references/rhdh-local.md 3.0 KB
- scripts/analyze-pr.py 17 KB runs code
- scripts/triage-prs.py 12 KB runs code
- templates/workspace-files.md 3.6 KB
- workflows/analyze-pr.md 5.3 KB
- workflows/doctor.md 735 B
- workflows/draft-notification.md 4.7 KB
- workflows/fix-build.md 2.0 KB
- workflows/onboard-plugin.md 13 KB
- workflows/triage-prs.md 5.2 KB
- workflows/update-plugin.md 3.0 KB
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.
- 8d ago First seen · 113 lines · 136 tokens per session scan A e2269a4fd1ad
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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