Borrowing it
Nothing to install: this file belongs to openshift-online/gcp-hcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/openshift-online/gcp-hcp/main/.claude/skills/walkthrough-hostedcluster-create/SKILL.mdgit clone --depth 1 https://github.com/openshift-online/gcp-hcpWrote 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/openshift-online/gcp-hcp/walkthrough-hostedcluster-create)<a href="https://agentmods.dev/skills/openshift-online/gcp-hcp/walkthrough-hostedcluster-create"><img src="https://agentmods.dev/badge/skills/openshift-online/gcp-hcp/walkthrough-hostedcluster-create/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/openshift-online/gcp-hcp/walkthrough-hostedcluster-create"><img src="https://agentmods.dev/badge/skills/openshift-online/gcp-hcp/walkthrough-hostedcluster-create.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 | $0.00023 | $0.00866 |
| Opus 5 | $0.00012 | $0.00433 |
| Sonnet 5 | $0.00005 | $0.00173 |
| Haiku 4.5 | $0.00002 | $0.00087 |
Grade A, and why
walkthrough-hostedcluster-create 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 10d 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 — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
HostedCluster Create Flow
Trace the end-to-end flow of creating a HostedCluster on GCP — from API definition through controller reconciliation to GKE cluster provisioning and status updates.
Layer 1 — API Types
Start here. Find the HostedCluster API type definition in the hypershift repository. Show me:
- The
HostedClusterSpecandHostedClusterStatusstructures - The GCP-specific platform configuration within the spec (look for the GCP platform type)
- What GCP resources are encoded in the API types — what does a user declare when they want a cluster on GCP?
- How the API types relate to the Kubernetes CRD that gets installed
Help me understand: the API types are the contract. Everything downstream is driven by what's declared here.
Layer 2 — Validation and Admission
Trace how HostedCluster creation requests are validated before they reach the controller. Find:
- Webhook validators for the HostedCluster resource
- GCP-specific validation logic — what GCP-specific fields are validated and why?
- What preconditions must be met before a cluster can be created?
- How validation errors are surfaced to the user
Help me understand: validation is the first line of defense. It catches misconfigurations before they become expensive reconciliation failures.
Layer 3 — Controller Reconciliation
This is the core of the system. Find the HostedCluster controller and trace its reconcile function. Show me:
- How the controller detects a new HostedCluster (watch, queue, reconcile loop)
- The structure of the reconciliation — is it a single function or broken into phases/sub-reconcilers?
- How the controller delegates to platform-specific (GCP) logic
- Error handling and retry patterns — what happens when a reconciliation step fails?
- How the controller manages the lifecycle of child resources (what other Kubernetes objects does it create?)
Help me understand: the reconcile loop is the engine. It continuously drives the actual state toward the desired state declared in the API types.
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.
- 10d ago First seen · 81 lines · 23 tokens per session scan A 77cfd45e548d
walkthrough-hostedcluster-create is a skill published in the GitHub repository openshift-online/gcp-hcp (2 stars, last pushed 2d ago), licensed Apache-2.0. It adds 23 tokens to every session and 866 once invoked, about $0.0001 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 2026-08-31.
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