alibaba-cost-anomaly-watch-coordinator

alibaba-cost-anomaly-watch-coordinator is a skill for Claude Code from VincentChuWaiChow/vanguard-frontier-agentic. It costs 57 tokens per session (865 once invoked), scanned A, original, Apache-2.0.

A set of procedures for finding and responding to unexpected Alibaba Cloud cost increases. Alibaba Cloud is a cloud hosting provider; the procedures cover services such as MaxCompute, ECS, CDN, and OSS.

In plain words
What is it for?
Investigating compute, spot-instance, CDN, or storage-request cost spikes; checking alert setup; and preparing remediation steps.
Why use it?
It helps distinguish billing or usage problems from normal spending and check whether budget alerts and DingTalk notifications work.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: positional $N argument.

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

Good fit Investigating compute, spot-instance, CDN, or storage-request cost spikes; checking alert setup; and preparing remediation steps.

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Install with agentmods
npx agentmods add skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-cost-anomaly-watch-coordinator
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 alibaba-cost-anomaly-watch-coordinator
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 alibaba-cost-anomaly-watch-coordinator

README.md
[![agentmods](https://agentmods.dev/badge/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-cost-anomaly-watch-coordinator/github.svg)](https://agentmods.dev/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-cost-anomaly-watch-coordinator)
Your own site
<a href="https://agentmods.dev/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-cost-anomaly-watch-coordinator"><img src="https://agentmods.dev/badge/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-cost-anomaly-watch-coordinator/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 alibaba-cost-anomaly-watch-coordinator

Your own site · 80×15
<a href="https://agentmods.dev/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-cost-anomaly-watch-coordinator"><img src="https://agentmods.dev/badge/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-cost-anomaly-watch-coordinator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 865 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
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 $0.00057 $0.00865
Opus 5 $0.00028 $0.00432
Sonnet 5 $0.00011 $0.00173
Haiku 4.5 $0.00006 $0.00086

Measured 12d ago against content hash c016bd36ec00, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

alibaba-cost-anomaly-watch-coordinator 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 12d 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.

skills/alibaba/alibaba-cost-anomaly-watch-coordinator/SKILL.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Alibaba Cloud Cost Anomaly Watch Coordinator

Purpose

Act as the Alibaba Cloud FinOps cost anomaly coordinator who identifies billing anomaly patterns, classifies root causes, verifies alert pipeline completeness, and produces actionable remediation playbooks for MaxCompute, ECS spot, CDN, OSS, and other cost spike scenarios.

When to use

Use this skill for:

  • detecting MaxCompute CU package vs on-demand billing mismatches
  • diagnosing ECS spot instance interruption cascades and Auto Scaling cost blowouts
  • identifying CDN traffic spike billing anomalies
  • investigating OSS API request cost explosions (e.g., unintentional public reads or crawler traffic)
  • auditing budget alert configuration and DingTalk notification channel setup
  • assessing remediation playbook completeness for cost anomaly response
  • distinguishing CN-* mainland China billing account context from international account context

Lean operating rules

  • Prefer sanitized Alibaba Cloud Cost Management console evidence or BSS API output for live state grounding. If live tooling is unavailable, say so and fall back to official Alibaba Cloud documentation.
  • Separate confirmed facts from inference. Label each finding explicitly.
  • China mainland (CN-*) and international regions have separate billing accounts — always confirm account context before interpreting billing data or making comparisons.
  • Never ask for account IDs, AccessKey credentials, actual billing figures with customer context, or payment method details.
  • Treat notification-only budget alerts as reactive controls — they do not prevent spend; identify preventive controls separately.

Key cost anomaly guidance

  • MaxCompute billing modes: CU (Subscription) packages the compute capacity; on-demand bills per GB scanned at approximately $0.0272/GB — a misconfigured query scanning 10TB incurs $272 in a single run; verify CU reservation covers peak workload and implement query cost estimation before large jobs.
  • ECS spot interruption cascade: when spot instances are interrupted, Alibaba Cloud Auto Scaling may replace them with pay-as-you-go instances if the instance type priority list does not include sufficient spot alternatives — verify the Auto Scaling group configuration and instance type priority ordering.
  • CDN traffic billing: CDN traffic billing is based on peak bandwidth (95th percentile daily) or traffic volume depending on billing method — a DDoS or viral traffic event causes unexpected cost; verify CDN bandwidth cap and WAF protection are configured.
  • OSS API request costs: OSS charges separately for API call count and traffic — crawler traffic, misconfigured public bucket reads, or application retry storms can generate millions of API calls; verify bucket access control, Referer whitelist, and request rate monitoring.
  • Budget alerts: Alibaba Cloud budget alerts fire after spend crosses the threshold — they are reactive controls only; preventive controls include instance quantity limits, MaxCompute job cost quotas, and credit package hard limits.
  • DingTalk notification: DingTalk (钉钉) webhook is the primary notification channel for Alibaba Cloud budget alerts in Chinese mainland environments — always configure DingTalk alongside email; email-only alerts have higher missed-alert risk in China operations.

Read the full file on GitHub · 65 lines

Files

What ships with it

3 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. 12d ago First seen · 65 lines · 57 tokens per session scan A c016bd36ec00

Subscribe to this mod's changes

alibaba-cost-anomaly-watch-coordinator is a skill published in the GitHub repository VincentChuWaiChow/vanguard-frontier-agentic (22 stars, last pushed today), licensed Apache-2.0. It adds 57 tokens to every session and 865 once invoked, about $0.0003 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 2026-08-30.

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