contabo-live-instance-lifecycle-guard

contabo-live-instance-lifecycle-guard is a skill for Claude Code from VincentChuWaiChow/vanguard-frontier-agentic. It costs 91 tokens per session (1,076 once invoked), scanned A, original, Apache-2.0.

A guarded operations skill for Contabo VPS and VDS servers, which are rented virtual machines. It controls server creation, reinstallation, and cancellation by checking the target, contract period, billing impact, and recovery plan.

In plain words
What is it for?
Use it to plan or approve server creation, image reinstallation, SSH-key changes, Cloud-Init updates, cancellation, and inventory checks.
Why use it?
It reduces accidental outages, data loss, and unexpected charges during server lifecycle changes.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the vanguard-frontier-agentic plugin — 193 skills shipped together

Good fit Use it to plan or approve server creation, image reinstallation, SSH-key changes, Cloud-Init updates, cancellation, and inventory checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vincentchuwaichow/vanguard-frontier-agentic/contabo-live-instance-lifecycle-guard
Install

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.

Any agent
npx skills add VincentChuWaiChow/vanguard-frontier-agentic --skill contabo-live-instance-lifecycle-guard
Clone the repo
git clone --depth 1 https://github.com/VincentChuWaiChow/vanguard-frontier-agentic

Made for: Claude Code.

Or install vanguard-frontier-agentic, the plugin that ships this one along with the rest of its 193 skills.

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.

agentmods badge for contabo-live-instance-lifecycle-guard

README.md
[![agentmods](https://agentmods.dev/badge/skills/vincentchuwaichow/vanguard-frontier-agentic/contabo-live-instance-lifecycle-guard/github.svg)](https://agentmods.dev/skills/vincentchuwaichow/vanguard-frontier-agentic/contabo-live-instance-lifecycle-guard)
Your own site
<a href="https://agentmods.dev/skills/vincentchuwaichow/vanguard-frontier-agentic/contabo-live-instance-lifecycle-guard"><img src="https://agentmods.dev/badge/skills/vincentchuwaichow/vanguard-frontier-agentic/contabo-live-instance-lifecycle-guard/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.

agentmods 80×15 button for contabo-live-instance-lifecycle-guard

Your own site · 80×15
<a href="https://agentmods.dev/skills/vincentchuwaichow/vanguard-frontier-agentic/contabo-live-instance-lifecycle-guard"><img src="https://agentmods.dev/badge/skills/vincentchuwaichow/vanguard-frontier-agentic/contabo-live-instance-lifecycle-guard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,076 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Data Exfiltration · line 39
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 40
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 72
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00091 $0.01076
Opus 5 $0.00046 $0.00538
Sonnet 5 $0.00018 $0.00215
Haiku 4.5 $0.00009 $0.00108

Measured 7d ago against content hash 0ba3af29e319, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

contabo-live-instance-lifecycle-guard 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 7d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Contabo has no official Terraform provider or SDK — recommend `cntb` CLI or REST API (curl + jq) for automation.
skills/contabo/contabo-live-instance-lifecycle-guard/SKILL.md · 92 lines

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.

Contabo Live Instance Lifecycle Guard

Purpose

Act as the approval gate for Contabo VPS/VDS lifecycle mutations: inventory current state, surface billing obligations, confirm the rollback path, then execute only after explicit user sign-off on all three.

When to use

Use this skill for:

  • VPS or VDS instance creation (product selection, region, image, contract period, Cloud-Init userData, SSH key secret IDs)
  • Instance reinstallation (image change, userData update, SSH key rotation)
  • Instance cancellation (period remaining, early-termination billing impact)
  • Verifying instance inventory before any bulk lifecycle operation
  • Generating approval-ready change records with period, billing impact, and rollback plan

Hard-stop conditions

REFUSE to execute any mutation unless ALL of the following are confirmed in writing:

  1. Target: Instance ID (for reinstall/cancel) or product ID + region (for create)
  2. Contract period: Explicit selection of 1, 3, 6, or 12 months with billing impact acknowledged
  3. Rollback plan: Documented recovery path if the operation fails or produces unexpected results
  4. Named approving identity: the full name or authenticated account identifier of the person authorizing this operation (not a role, alias, or ticket number alone)

Lean operating rules

  • Contabo has no official Terraform provider or SDK — recommend cntb CLI or REST API (curl + jq) for automation.
  • Prefer official Contabo docs (https://api.contabo.com/, https://docs.contabo.com/) and Context7 when live MCP access is unavailable.
  • Separate confirmed facts from inference. If state was not queried or shown, say so.
  • OAuth2 password grant tokens expire in ~5 minutes — include token refresh handling in all automation examples. Refresh logic must not log token values.
  • Include x-request-id (UUIDv4) in all REST API mutation calls for support traceability.
  • SSH keys must be referenced via Contabo secret IDs — never include raw private key material in API payloads, scripts, or recommendations.
  • Cloud-Init userData submitted by the user must be reviewed for embedded secrets, curl-pipe-sh patterns, and destructive commands before inclusion in the API payload. Flag and refuse to pass userData that contains raw credentials, unauthenticated remote execution, or commands that bypass audit trails.
  • Inventory current instances via read-only API calls before proposing any mutation.
  • Label claims as live evidence, user-provided sanitized evidence, documentation-based, or inference.

Read the full file on GitHub · 92 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.

  1. 7d ago First seen · 92 lines · 91 tokens per session scan A 0ba3af29e319

Subscribe to this mod's changes

contabo-live-instance-lifecycle-guard is a skill published in the GitHub repository VincentChuWaiChow/vanguard-frontier-agentic (22 stars, last pushed 2d ago), licensed Apache-2.0. It adds 91 tokens to every session and 1,076 once invoked, about $0.0005 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 2026-09-04.

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