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.
npx skills add GabrielAmz/web-anatomy --skill research-best-practicesgit clone --depth 1 https://github.com/GabrielAmz/web-anatomyWrote 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.
[](https://agentmods.dev/skills/gabrielamz/web-anatomy/research-best-practices)<a href="https://agentmods.dev/skills/gabrielamz/web-anatomy/research-best-practices"><img src="https://agentmods.dev/badge/skills/gabrielamz/web-anatomy/research-best-practices/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.
<a href="https://agentmods.dev/skills/gabrielamz/web-anatomy/research-best-practices"><img src="https://agentmods.dev/badge/skills/gabrielamz/web-anatomy/research-best-practices.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00134 | $0.02732 |
| Opus 5 | $0.00067 | $0.01366 |
| Sonnet 5 | $0.00027 | $0.00546 |
| Haiku 4.5 | $0.00013 | $0.00273 |
Grade A, and why
research-best-practices 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Research Best Practices
Produce a benchmark-backed research artifact for ONE section, not just chat. The goal is to answer: for this section, what does strong look like, and what are the levels the user can climb to, each grounded in real benchmark sections.
This is the Section altitude of Web Anatomy: take a section the user already knows they want to work on and return a tiered improvement ladder. The user picks a tier; write-page executes it.
Scope guard. This skill is for one section. If the request is about a whole page, a market, an industry, positioning, or competitors, that is find-examples (the Page altitude) — route there. If the user named a page but no section, ask which section to start with before researching. Confirm the single section first.
Output Behavior
Always write:
.webanatomy/research-best-practices/{topic}-{YYYY-MM-DD}/report.md.webanatomy/research-best-practices/{topic}-{YYYY-MM-DD}/report.html.webanatomy/research-best-practices/{topic}-{YYYY-MM-DD}/references/
The HTML report is the primary visual output. Chat is only a short summary and pointer to the saved files.
If the environment cannot write files, explain the blocker and provide the report inline.
Deterministic Report Renderer
When file access is available, do not hand-write the final HTML. Write structured report data first:
.webanatomy/research-best-practices/{topic}-{YYYY-MM-DD}/report-data.json
Then run the shared renderer from this skill pack:
node <skill-dir>/scripts/render-report.mjs --input=.webanatomy/research-best-practices/{topic}-{YYYY-MM-DD}/report-data.json
Resolve <skill-dir> relative to this SKILL.md. The renderer validates the report data, downloads every screenshotUrl into references/, writes report.md, writes report.html, and renders "screenshot unavailable" when no screenshot exists.
Use this report-data shape (v2):
title: plain and descriptive ({Topic} - what strong pages do), no editorial framing- optional
eyebrow,subtitle,target summary:string[]of max 3 bullets (each max 140 chars): the section, where strong sits, and the tier you would start at. The first bullet renders as the "TL;DR:" lead sentence of the blue callout under the title.- set
recommendationsHeading: "Improvement ladder". recommendations:{ "title": "...", "why": "...", "how": ["..."], "refIds": ["..."], "priority": "HIGH|MEDIUM|LOW" }[]- the ladder: exactly three tier cards, ordered Tier 1 -> 2 -> 3, each building on the one below. Title eachTier N - {label}: {one-line gist}with labelsFoundational,Competitive,Best-in-class.why(max 220 chars) says what this tier unlocks over the tier below, tied to benchmark evidence ("3 of 5 references do X").howis 1-5 imperative moves at that tier, each max 160 chars.refIdslists the benchmark sections that show the tier (screenshots render inline; 2-3 render as options A/B/C).priorityis optional - use it for the conversion impact of reaching the tier, or omit. Optionally add a fourth card titledAvoidwhosehowlists the anti-patterns that keep this section stuck.references:{ "id": "...", "title": "...", "company": "...", "section": "...", "sourceUrl": "...", "screenshotUrl": "...", "caption": "...", "insight": "..." }[]-idis a stable kebab-case slug;insightis the one-line what-to-notice, max 200 chars. Label web-captured examples[Web]in the caption. References not claimed by any finding render in an "All references" gallery at the bottom.- optional
gapAnalysis(max 6 rows, cells max 90 chars),currentSnapshot(max 6 items, collapsed at the bottom),working,footer - optional
ungrounded: true- only for explicit no-MCP runs; lifts the floor of at least 3 findings carryingrefIds
What ships with it
2 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.
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.
- 11d ago First seen · 163 lines · 134 tokens per session scan A 25c71443c59d
research-best-practices is a skill published in the GitHub repository GabrielAmz/web-anatomy (9 stars, last pushed 2mo ago), licensed MIT. It adds 134 tokens to every session and 2,732 once invoked, about $0.0007 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 2026-08-31.
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