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-base-imagesgit 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-base-images)<a href="https://agentmods.dev/skills/redhat-developer/rhdh-skills/rhdh-base-images"><img src="https://agentmods.dev/badge/skills/redhat-developer/rhdh-skills/rhdh-base-images/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-base-images"><img src="https://agentmods.dev/badge/skills/redhat-developer/rhdh-skills/rhdh-base-images.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00151 | $0.01252 |
| Opus 5 | $0.00076 | $0.00626 |
| Sonnet 5 | $0.00030 | $0.00250 |
| Haiku 4.5 | $0.00015 | $0.00125 |
Grade A, and why
rhdh-base-images scanned grade A with 1 finding 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 yesterday.
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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
compatibility: "bash, jq, skopeo, curl, git, python3; podman or docker for toolchain detection; gh or glab for PR/MR creation." How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
RHDH base images
Use the bundled scripts instead of reconstructing their repository-specific logic.
Repository checkouts are explicit inputs the user names. This skill never discovers another skill's paths.
Route
| Intent | Load or run |
|---|---|
| Read-only current/latest image scan | workflows/update-base-images.md, then scripts/base-images-and-rpms.sh --analyze ... |
| Explain repository rules | references/repos.md |
| Preview an update | workflows/update-base-images.md, then scripts/base-images-and-rpms.sh --dry-run ... |
| Update images, lockfiles, Node headers, catalog builder, overlays node, or Go toolchain | workflows/update-base-images.md |
A scan reports, per repository: every FROM image with its current and latest
tag, UBI minor skew within a file, Node or Go toolchain drift, the registries and
branches it read, and anything it could not read.
Writing rules
Any checkout, branch, file edit, dependency install, commit, push, or PR is a
write. Run read-only discovery or --dry-run first, then follow
/mutation-gate: state each operation with its target repository and branch
(rhdh:release-1.10), the exact command, the change it will land, and what
happens to the remaining operations if it fails; get approval for that stated
set; execute; then report every operation as completed, failed, or skipped, with
the resources it changed and the risks that remain.
Installing rpm-lockfile-prototype, logging into registries, using --push, and
opening PRs are each their own operation. Default to local, no-push behavior; do
not push directly to protected branches. Verify the branch exists and the working
tree is clean before writing.
Repository invariants
- Accepted branch selectors are
mainorrelease-*; map them to the documented GitLab scripts branch inreferences/repos.md. - Keep base-image UBI minors aligned with RPM repository URLs.
- On RHDH, update Node headers when the builder image changes Node. Then, when
those checkouts are in scope, pin plugin-catalog
build/containerfiles/builder.ContainerfileFROM to the same UBI Nodetag@sha256, copy.nvm/, rewritekonflux.additional-tagsnode-v*to match.nvmrc, and set overlaysversions.jsonnodeto that version. Catalog mapsrelease-1.Y→ GitLabrhdh-1.Y-rhel-9andrelease-2.Y→ GitLabrelease-2.Y(using UBI10 / RHEL10). Catalog has norpms.lock.yaml. Do not[skip-build]the catalog builder commit. - On rhdh-operator
main, raisego.modto the Go toolset image when the image is newer. Never lowergoortoolchainto match an older image; a newer pin (for example from Renovate) is valid. - Exclude RHDH
e2e-tests/and.ci/from image scans. - Ignore
rpm-lockfile-prototypelines matchingNo sources found foror "no matching sources". Those source RPMs are often unpublished; the binary lockfile is still valid. Do not report them as unread, failed, or remaining risks.
What ships with it
5 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.
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.
- yesterday Changed e44b4153e9ed
- 6d ago Changed · +10 lines · +48 tokens per session 281e417c9768
- 10d ago First seen · 82 lines · 103 tokens per session scan A 496e267ae54e
rhdh-base-images is a skill published in the GitHub repository redhat-developer/rhdh-skills (16 stars, last pushed yesterday), licensed Apache-2.0. It adds 151 tokens to every session and 1,252 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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