prometheus

prometheus is a skill for Claude Code from vmkteam/claude-plugins. It costs 54 tokens per session (1,655 once invoked), scanned A, original, MIT.

A Prometheus metrics guide and query skill for vmkteam services. Prometheus is a system that stores time-series measurements from running software.

In plain words
What is it for?
Use it to query request rates, latency percentiles such as p95 and p99, error rates, RPC activity, scheduled-task status, and resource usage.
Why use it?
It helps answer operational questions with metrics instead of guessing, such as whether requests are slow, failing, or unusually numerous.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the vmkteam-developer plugin — 35 skills shipped together

Good fit Use it to query request rates, latency percentiles such as p95 and p99, error rates, RPC activity, scheduled-task status, and resource usage.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vmkteam/claude-plugins/prometheus
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 vmkteam/claude-plugins --skill prometheus
Clone the repo
git clone --depth 1 https://github.com/vmkteam/claude-plugins

Made for: Claude Code.

Or install vmkteam-developer, the plugin that ships this one along with the rest of its 35 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 prometheus

README.md
[![agentmods](https://agentmods.dev/badge/skills/vmkteam/claude-plugins/prometheus/github.svg)](https://agentmods.dev/skills/vmkteam/claude-plugins/prometheus)
Your own site
<a href="https://agentmods.dev/skills/vmkteam/claude-plugins/prometheus"><img src="https://agentmods.dev/badge/skills/vmkteam/claude-plugins/prometheus/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 prometheus

Your own site · 80×15
<a href="https://agentmods.dev/skills/vmkteam/claude-plugins/prometheus"><img src="https://agentmods.dev/badge/skills/vmkteam/claude-plugins/prometheus.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,655 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00054 $0.01655
Opus 5.5 $0.00022 $0.00662
Sonnet 5.5 $0.00011 $0.00331
Haiku 4.5 $0.00005 $0.00166

Measured 23d ago against content hash b106804e260d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

prometheus 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.

plugins/developer/skills/prometheus/SKILL.md · 184 lines

How it starts

The opening of the file, as written. The whole thing — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prometheus — метрики vmkteam-сервисов

Prometheus для метрик. Метрики из vmkteam/appkit, vmkteam/zenrpc, vmkteam/cron.

Конкретные хосты, job-имена определяются при онбординге.

Подключение

Profile: @{prom_profile}
Base URL: https://{prom_host}/api/v1

Также доступен через Grafana proxy (см. /grafana).

Метрики appkit (app_*)

HTTP (app_http_*)

Метрика Тип Labels
app_http_requests_total counter job, code, method, uri, server
app_http_responses_duration_seconds_count counter job, code, method, uri, server
app_http_responses_duration_seconds_sum counter job, code, method, uri, server
app_http_client_requests_total counter job
app_http_client_requests_inflight gauge job

RPC / zenrpc (app_rpc_*)

Метрика Тип Labels
app_rpc_responses_duration_seconds_count counter job, code, method, platform, server, version
app_rpc_responses_duration_seconds_sum counter job, code, method, platform, server, version
app_rpc_error_requests_total counter job, code, method, platform, server, version

Cron (app_cron_*)

Метрика Тип Labels
app_cron_active gauge job
app_cron_evaluated_total counter job
app_cron_evaluated_duration_seconds_* counter job

Прочие

Метрика Описание
app_log_events_total Log events
app_metadata_db_connections_total DB connections

Labels

Label Описание
job Сервис (определяется при онбординге)
code HTTP/RPC status code
method HTTP method или RPC method name (lowercase)
uri HTTP URI
platform Клиентская платформа (RPC)
version Версия клиента (RPC)

Команды pcurl

Instant query

# Общий формат (--data-urlencode обязателен для query с фигурными скобками)
pcurl @{profile} 'https://{host}/api/v1/query' -s -G --data-urlencode 'query={promql}'

# Health
pcurl @{profile} 'https://{host}/api/v1/query' -s -G --data-urlencode 'query=up{job="{service}"}'

# RPC RPS
pcurl @{profile} 'https://{host}/api/v1/query' -s -G --data-urlencode 'query=sum(rate(app_rpc_responses_duration_seconds_count{job="{service}"}[5m]))'

# RPC error rate
pcurl @{profile} 'https://{host}/api/v1/query' -s -G --data-urlencode 'query=sum(rate(app_rpc_error_requests_total{job="{service}"}[5m]))/sum(rate(app_rpc_responses_duration_seconds_count{job="{service}"}[5m]))'

Read the full file on GitHub · 184 lines

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. 23d ago Changed · +1 lines b106804e260d
  2. 1mo ago First seen · 183 lines · 54 tokens per session scan A 05aa4357f654

Subscribe to this mod's changes

prometheus is a skill published in the GitHub repository vmkteam/claude-plugins (7 stars, last pushed 6d ago), licensed MIT. It adds 54 tokens to every session and 1,655 once invoked, about $0.0002 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 2026-08-31.

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