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html-comparison-matrix

html-comparison-matrix is a skill for Claude Code from f-labs-io/agent-html-skills. It costs 113 tokens per session (3,300 once invoked), scanned A, original, MIT.

An interactive HTML comparison table for evaluating named candidates across several criteria, with optional weights and live re-ranking. HTML is the standard format used to display web pages.

In plain words
What is it for?
Use it to compare products, designs, strategies, tools, or other known candidates using multiple criteria and weighted scores.
Why use it?
It makes trade-offs and hidden priorities visible instead of burying them in a paragraph or an unweighted score.

Skill for Claude Code

Written for Claude Code: when-to-use in frontmatter. Also seen: names the AskUserQuestion tool; mentions Claude Code.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the html-skills plugin — 19 skills shipped together

not rated 68repo +1 changed 1mo ago A scan 113 tokens original MIT

Good fit Use it to compare products, designs, strategies, tools, or other known candidates using multiple criteria and weighted scores.

Compare 6 skills from other repositories ↓
View source ↗ f-labs-io/agent-html-skills
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add f-labs-io/agent-html-skills
Claude Code
/plugin install html-skills

Made for: Claude Code.

Or install html-skills, the plugin that ships this one along with the rest of its 19 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 html-comparison-matrix

README.md
[![agentmods](https://agentmods.dev/badge/skills/f-labs-io/agent-html-skills/html-comparison-matrix/github.svg)](https://agentmods.dev/skills/f-labs-io/agent-html-skills/html-comparison-matrix)
Your own site
<a href="https://agentmods.dev/skills/f-labs-io/agent-html-skills/html-comparison-matrix"><img src="https://agentmods.dev/badge/skills/f-labs-io/agent-html-skills/html-comparison-matrix/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 html-comparison-matrix

Your own site · 80×15
<a href="https://agentmods.dev/skills/f-labs-io/agent-html-skills/html-comparison-matrix"><img src="https://agentmods.dev/badge/skills/f-labs-io/agent-html-skills/html-comparison-matrix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,300 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 $0.00113 $0.03300
Opus 5.5 $0.00045 $0.01320
Sonnet 5.5 $0.00023 $0.00660
Haiku 4.5 $0.00011 $0.00330

Measured 1mo ago against content hash 45c6c5c366ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

html-comparison-matrix 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 1mo 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/html-skills/skills/html-comparison-matrix/SKILL.md · 186 lines

How it starts

The opening of the file, as written. The whole thing — 186 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HTML Comparison Matrix

When picking between candidates on multiple criteria, a comparison matrix beats a paragraph. A weighted matrix beats an unweighted one — weights surface the implicit priorities and let the user argue with their own past judgments.

Phase boundary. This skill handles the evaluative phase of comparison — scoring candidates that already exist. If the user hasn't named candidates yet and is still asking "what are the options" or "show me approaches", hand off to html-brainstorm-grid instead. The boundary signal is whether candidates appear in the prompt: if so, score them here; if not, generate them there. The two skills are designed to compose — generate options there, then evaluate them here.

Pre-flight — run BEFORE writing the artifact

Invoke html-skills:html-skills-listen (Skill tool) first; it is idempotent. If it returns a URL, inject it verbatim as window.__CLAUDE_SUBMIT_URL__ in the HTML you are about to write, ?t= query string included (a local, single-session loopback handshake — not a credential). If it reported web/sandbox mode, leave that line out; submitToClaude then falls back to clipboard mode.

When to use this skill

  • "Compare X, Y, and Z" (libraries, vendors, frameworks, designs)
  • "Which [tool, library, vendor, approach] should we use?"
  • "Help me decide between A and B"
  • "Evaluate [X] against [Y, Z]"
  • Build-vs-buy decisions
  • Anything with multiple named candidates and multiple selection criteria

When NOT to use this skill

  • The user is asking the skill to generate options ("brainstorm approaches", "show me ways"). Use html-brainstorm-grid.
  • Only one candidate is named — no comparison to make. Use html-spec-planning to write up the rationale.
  • The "comparison" is two paragraphs that don't need a weighted scoring system. A simple side-by-side in prose is fine.

Output requirements

The artifact has:

  • A matrix of candidates × criteria
  • Per-criterion weight sliders that update totals live
  • Per-candidate score breakdowns
  • A clear "verdict" pane that updates as weights change
  • One Submit button that sends the configured matrix and current verdict back in the standard envelope

Read the full file on GitHub · 186 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. 1mo ago Changed · +1 lines 45c6c5c366ec
  2. 2mo ago Changed · -48 lines · -115 tokens per session 14450a967d36
  3. 2mo ago First seen · 233 lines · 228 tokens per session scan A 9c98f115a464

Subscribe to this mod's changes

html-comparison-matrix is a skill published in the GitHub repository f-labs-io/agent-html-skills (68 stars, last pushed 1mo ago), licensed MIT. It adds 113 tokens to every session and 3,300 once invoked, about $0.0005 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 2026-08-30.

Related

html-comparison-matrix compared with skills from other repositories

html-comparison-matrix next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
html-comparison-matrixf-labs-io/agent-html-skillsSkill681mo agoMITA113Claude Code
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code