metrics

metrics is a skill for Claude Code, Codex from ariaxhan/kernel-claude. It costs 30 tokens per session (356 once invoked), scanned A, original, MIT.

A monitoring dashboard for session activity, agent work, automatic-hook performance, and learned development rules.

In plain words
What is it for?
Use it to review session statistics, check system health, inspect hook failures, and find learning or review issues.
Why use it?
It makes failures, unusual measurements, and stale lessons easier to notice than inspecting logs one by one.

Skill for Claude CodeCodex

Part of the kernel plugin — 28 skills, 13 agents, 4 hooks shipped together

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.

agentmods
npx agentmods add skills/ariaxhan/kernel-claude/metrics
Any agent
npx skills add ariaxhan/kernel-claude --skill metrics
Clone the repo
git clone --depth 1 https://github.com/ariaxhan/kernel-claude

Made for: Claude Code, Codex.

Or install kernel, the plugin that ships this one along with the rest of its 28 skills, 13 agents, 4 hooks.

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 metrics

README.md
[![agentmods](https://agentmods.dev/badge/skills/ariaxhan/kernel-claude/metrics.svg)](https://agentmods.dev/skills/ariaxhan/kernel-claude/metrics)
Your own site
<a href="https://agentmods.dev/skills/ariaxhan/kernel-claude/metrics"><img src="https://agentmods.dev/badge/skills/ariaxhan/kernel-claude/metrics.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 356 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00030 $0.00356
Opus 5 $0.00015 $0.00178
Sonnet 5 $0.00006 $0.00071
Haiku 4.5 $0.00003 $0.00036

Measured 5d ago against content hash 42466af481e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

metrics 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 5d 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/metrics/SKILL.md · 49 lines

What it actually says

Example recommendations:

  • "64% tier 1 work — your skill set matches well"
  • "Adversary sample size < 5 — run /kernel:tearitapart more on tier 2+ work"
  • "detect-secrets had 2 failures — check patterns are current"
  • "3 learnings never reinforced in 30d — will be auto-pruned"

<on_start>

agentdb metrics
agentdb health

<ask_user> Use AskUserQuestion when: dashboard displayed and anomalies found Ask: "Anomaly in {metric}: {detail}. Want to investigate, or just note it?" Options: investigate, note and move on </ask_user> </on_start>

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. 5d ago First seen · 49 lines · 30 tokens per session scan A 42466af481e5

Subscribe to this mod's changes

metrics is a skill published in the GitHub repository ariaxhan/kernel-claude (12 stars, last pushed yesterday), licensed MIT. It adds 30 tokens to every session and 356 once invoked, about $0.0002 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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