/vm-rebalance Agent Skill

Orchestrate VM migrations across cluster nodes for load balancing, maintenance, and resource optimization.

Context cost
66.5k tokensestimated from the bundle, loaded when it triggers
Bundle
17 files · 266.0 kBtext throughout, nothing executable
Licence
Apache-2.0the author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

Orchestrate VM migrations across cluster nodes for load balancing, maintenance, and resource optimization. Use when: - "Move VM database-01 to worker-03" - "Rebalance VMs to optimize CPU load" - "Drain worker-02 for maintenance" - "Automatically rebalance the cluster" Supports Manual (user-driven) and Automatic (AI-driven) modes. NOT for creating VMs (use vm-create) or lifecycle only (use vm-lifecycle-manager).

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

cloud
Filed under

Cloud & DevOps

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md17.6 kB · preview
--- name: vm-rebalance license: Apache-2.0 model: inherit color: yellow allowed-tools: resources_list resources_get resources_create_or_update vm_lifecycle nodes_top pods_top nodes_stats_summary ---
22# /vm-rebalance Skill
23
24Orchestrate VM migrations across OpenShift cluster nodes for load balancing, maintenance, and resource optimization. Supports manual and automatic rebalancing with live migration (zero downtime) and cold migration (brief downtime) strategies.
25
26**Implementation**: Uses KubeVirt's VirtualMachineInstanceMigration API for live migrations and node affinity for cold migrations.
27
28## Prerequisites
29
30**Required MCP Server**: openshift-virtualization ([OpenShift MCP Server](https://github.com/openshift/openshift-mcp-server))
31
32**Required MCP Tools**:
33- resources_list - List VMs and nodes
34- resources_get - Get VM and node details
35- resources_create_or_update - Create migrations and update VM specs
36- vm_lifecycle - Start/stop VMs for cold migration
37- nodes_top - Monitor node resource usage
38- pods_top - Monitor VM resource consumption
39
40**Required Environment Variables**:
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md2,078 words
Files17
LicenceApache-2.0
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈160
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
66,340
on trigger
The instruction body and 16 supporting files, read only when the skill fires.
33.3%
of a 200k window
Ten skills this size would not fit in the window together.
050k100k150k200k context window

66.5k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

It writes no files and reaches no network. All it changes is how the model reasons and writes.

What it asks for
Writes filesno
Network accessno

Read from the allowed-tools line of this skill’s own SKILL.md. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

17 files, 266.0 kB on disk. A bundle is text throughout: the instructions the model reads, plus the templates it fills in.

  • SKILL.md17.6 kB
  • REBALANCE_AUTOMATIC.md22.7 kB
  • REBALANCE_MANUAL.md29.7 kB
  • catalog-info.yaml1.0 kB
  • references/README.md0.1 kB
  • references/SOURCES.md0.1 kB
  • references/anti-patterns.md23.1 kB
What is not in it

No dependencies and nothing executable: a skill is text the agent reads, so the bundle is 17 files you can review in full before installing. The Apache-2.0 licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# /vm-rebalance · 66.5k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/vm-rebalance/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/vm-rebalance" ] && { [ ! -e .claude/skills/vm-rebalance ] || { mv .claude/skills/vm-rebalance "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/vm-rebalance" .claude/skills/ && echo "Installed .claude/skills/vm-rebalance"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add rhecosystemappeng/vm-rebalance

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/vm-rebalance/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/vm-rebalance/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/vm-rebalance" ] && { [ ! -e ~/.claude/skills/vm-rebalance ] || { mv ~/.claude/skills/vm-rebalance "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/vm-rebalance" ~/.claude/skills/ && echo "Installed ~/.claude/skills/vm-rebalance" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/vm-rebalance/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referencerhecosystemappeng/vm-rebalance

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

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