metrics-design

metrics-design is a skill for Claude Code from shrwnsan/vibekit-claude-plugins. It costs 87 tokens per session (1,381 once invoked), scanned A, original, no licence file.

A method for designing a metric tree for a feature, especially an AI feature. A metric tree links a main measure of success to earlier signals, later results, quality measures, and measures that detect harmful trade-offs.

In plain words
What is it for?
Use it to choose success measures, quality measures, leading and lagging indicators, and counter-metrics for a feature.
Why use it?
It prevents teams from judging a feature by one incomplete number. It helps define how to tell whether the feature is working and whether improvements cause new problems.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the haku plugin — 52 skills, 22 agents shipped together

Good fit Use it to choose success measures, quality measures, leading and lagging indicators, and counter-metrics for a feature.

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

Made for: Claude Code.

Or install haku, the plugin that ships this one along with the rest of its 52 skills, 22 agents.

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-design

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/shrwnsan/vibekit-claude-plugins/metrics-design"><img src="https://agentmods.dev/badge/skills/shrwnsan/vibekit-claude-plugins/metrics-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,381 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 unknown 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 $0.00087 $0.01381
Opus 5 $0.00044 $0.00691
Sonnet 5 $0.00017 $0.00276
Haiku 4.5 $0.00009 $0.00138

Measured 2d ago against content hash 842c72fa79dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

metrics-design 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 2d 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/haku/packs/leadership/skills/metrics-design/SKILL.md · 105 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 2d ago First seen · 105 lines · 87 tokens per session scan A 842c72fa79dd

Subscribe to this mod's changes

metrics-design is a skill published in the GitHub repository shrwnsan/vibekit-claude-plugins (7 stars, last pushed 2d ago), with no licence file. It adds 87 tokens to every session and 1,381 once invoked, about $0.0004 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 2026-09-10.

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