Front-End Checklist is a collection of front-end web development rules organized as a practical review and quality workflow for people and AI agents. Developers use it to audit projects and pull requests, check implementation details, and find guidance for remediation and verification. The catalogue entries provide skills, instructions, MCP tools, and a plugin for using the checklist in agent workflows.
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 thedaviddias/Front-End-Checklist --skill figure-figcaptiongit clone --depth 1 https://github.com/thedaviddias/Front-End-ChecklistWrote 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/thedaviddias/front-end-checklist/figure-figcaption)<a href="https://agentmods.dev/skills/thedaviddias/front-end-checklist/figure-figcaption"><img src="https://agentmods.dev/badge/skills/thedaviddias/front-end-checklist/figure-figcaption/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/thedaviddias/front-end-checklist/figure-figcaption"><img src="https://agentmods.dev/badge/skills/thedaviddias/front-end-checklist/figure-figcaption.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00050 | $0.00730 |
| Opus 5.5 | $0.00020 | $0.00292 |
| Sonnet 5.5 | $0.00010 | $0.00146 |
| Haiku 4.5 | $0.00005 | $0.00073 |
Grade A, and why
figure-figcaption 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.
How it starts
The opening of the file, as written. The whole thing — 46 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Use and for image captions
Using a <p> tag as a caption is invisible to assistive technology as an image description. The <figure>/<figcaption> pattern creates a machine-readable relationship between an image and its caption, which screen readers surface to users. It also communicates to search engines that the caption describes the image, supporting image SEO.
Quick Reference
- Wrap image + visible caption pairs in
<figure>with<figcaption>as a direct child <figcaption>must be the first or last child of<figure>- Do not duplicate alt text in figcaption—alt is the fallback, figcaption is the visible description
<figure>is appropriate for images, code blocks, diagrams, and charts—not every image
Check
Scan the codebase for images with adjacent visible text that acts as a caption (e.g., a or immediately below an describing it). Verify: 1) Such image-caption pairs are wrapped in . 2) The caption text is inside a element. 3) is a direct child of . 4) The alt text on the is not identical to the text—they serve different purposes. Flag any followed by descriptive text that is not structured as figure/figcaption.
Fix
For each image with an adjacent caption: 1) Wrap the and its caption text in a element. 2) Move the caption text into a element inside . 3) Review the alt attribute—if the figcaption already fully describes the image for sighted users, the alt can be shorter or empty (alt="") only if the figcaption alone is sufficient for screen readers too; otherwise keep a concise alt. 4) Position as the first or last child of . Show the corrected HTML.
Explain
Explain the semantic meaning of and . The element represents self-contained content (an image, code sample, diagram) that is referenced from the main content but could be moved without affecting the document flow. provides a caption or legend for the figure. Screen readers announce the figcaption in association with the figure, giving users context. Without this markup, sighted users see a caption but screen reader users hear only the alt text with no indication that a visible caption exists.
What ships with it
1 file 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.
- 23d ago Changed 515f2acb7dfb
- 1mo ago First seen · 46 lines · 50 tokens per session scan A 65db86850b60
figure-figcaption is a skill published in the GitHub repository thedaviddias/Front-End-Checklist (74,577 stars, last pushed 21d ago), licensed MIT. It adds 50 tokens to every session and 730 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 2026-09-03.
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