A repository guide for GitHub Actions, the service that runs automated checks, plus self-hosted runners and branch protection. It documents which files and checks are authoritative and which runner limits matter.

Use it before changing workflow files, CI scripts, runner scale sets, branch protection, or pinned values, and when investigating red or flaky checks.

It prevents edits that appear valid but bypass real coverage, break fork safety, or depend on unavailable Kubernetes or Docker access. It also explains why a green or flaky check may not prove a change is safe.

How Aviator-Coding/home-ops configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to Aviator-Coding/home-ops. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/Aviator-Coding/home-ops/main/.agents/skills/github-ci/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/Aviator-Coding/home-ops

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/aviator-coding/home-ops/github-ci/github.svg)](https://agentmods.dev/skills/aviator-coding/home-ops/github-ci)

Your own site

<a href="https://agentmods.dev/skills/aviator-coding/home-ops/github-ci"><img src="https://agentmods.dev/badge/skills/aviator-coding/home-ops/github-ci/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/aviator-coding/home-ops/github-ci"><img src="https://agentmods.dev/badge/skills/aviator-coding/home-ops/github-ci.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,225 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00081	$0.01225
Opus 5.5	$0.00032	$0.00490
Sonnet 5.5	$0.00016	$0.00245
Haiku 4.5	$0.00008	$0.00122

Measured 23d ago against content hash b4e49e9248af, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

github-ci 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 23d 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.

.agents/skills/github-ci/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GitHub CI: workflows, scripts/ci gates and ARC runners

validate.yaml is the only CI signal for talos/, bootstrap/, .renovate/ and credential-less terraform/. flate and image-pull only see kubernetes/**. A green schema check is not permission to just talos apply-node.

Tripwires

talosctl validate is schema-only. It catches render breakage and unknown machine-config keys. Invalid enums, bad CIDRs and a missing install disk all pass. Bootstrap coverage is bootstrap/kustomize/ only.
Keep the fork guard on every self-hosted pull_request job. if: github.event.pull_request.head.repo.full_name == github.repository. This repo is public. A fork PR skips those workflows; a maintainer re-runs them from a same-repo branch.
Runners have no Kubernetes API and the home-ops set has no Docker. Both scale sets set automountServiceAccountToken: false and no serviceAccountName (chart no-permission SA). The only node credential is the home-ops Talos ServiceAccount at os:operator. docker:// actions and docker run fail on gha-runner-scale-set-aviator-coding-home-ops. arc-runners.md
A red validate.yaml check that passes on rerun is pool contention. Editing the workflow matches every per-job filter, so the set launches at once. maxRunners: 15 was not the ceiling (PR #1481). Rerun. Do not raise maxRunners, drop the workflow from its own filters, or serialize jobs (concurrency wait counts toward timeout-minutes).
jdx/mise-action install_args names the tool only. A @version pin installs a different copy than the .mise.toml shim. Gate: scripts/ci/mise-install-args-test.py.
Grep scripts/ci/ before retiring an app or changing a pinned value. task flux:test:all does not run these tests. Assert a relationship or a pin's shape. Leave the ARG TALOS_VERSION canary in .github/docker/talosctl-busybox/Dockerfile alone (skill talos-nodes). scripts-ci.md
A stale runner client cert fails image-pull on every kubernetes/** PR. remote error: tls: expired certificate is the node's apid rejecting the runner's mTLS cert. Delete Secret actions-runner in actions-runner-system so the talos.dev controller reissues it. The pull step's retries cannot fix an already-expired cert.
Only Labeler - Labeler is a required check. Ruleset main-branch-protection (id 21250320) is applied with gh api, not Git. platformAutomerge: false because GitHub merges the moment that one check is green. branch-protection.md
Workflow comments are not workflow logic. Edits under .github/workflows/ may change comments and docs. Leave runs:, if:, with: and @sha pins unchanged unless the task is a workflow change.

Read the full file on GitHub · 79 lines

Files

What ships with it

4 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.

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.

23d ago Changed b4e49e9248af
25d ago First seen · 79 lines · 81 tokens per session scan A f44582a201ac

Subscribe to this mod's changes

github-ci is a skill published in the GitHub repository Aviator-Coding/home-ops (3 stars, last pushed today), licensed MIT. It adds 81 tokens to every session and 1,225 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-29.

CI and CD DevOps and cloud Git and workflow

home-ops: Skill for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

GitHub CI: workflows, scripts/ci gates and ARC runners

Tripwires

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

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agent-github-modes

baby-sit

chinese-git-workflow

atmos-hooks

atmos-pro