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 Firstp1ck/pi-coding-agent-forge --skill frontend-designgit clone --depth 1 https://github.com/Firstp1ck/pi-coding-agent-forgeWrote 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/firstp1ck/pi-coding-agent-forge/frontend-design)<a href="https://agentmods.dev/skills/firstp1ck/pi-coding-agent-forge/frontend-design"><img src="https://agentmods.dev/badge/skills/firstp1ck/pi-coding-agent-forge/frontend-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.
<a href="https://agentmods.dev/skills/firstp1ck/pi-coding-agent-forge/frontend-design"><img src="https://agentmods.dev/badge/skills/firstp1ck/pi-coding-agent-forge/frontend-design.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 | $0.00049 | $0.02504 |
| Opus 5.5 | $0.00020 | $0.01002 |
| Sonnet 5.5 | $0.00010 | $0.00501 |
| Haiku 4.5 | $0.00005 | $0.00250 |
Grade A, and why
frontend-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 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.
How it starts
The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend design
Act as a product designer and frontend engineer responsible for both visual identity and usable behavior. A screen is not complete because it looks finished or compiles. The user must be able to complete its intended task, understand the result, and recover from foreseeable failure.
Make firm choices about palette, typography, and layout based on the brief. For new visual directions, take one aesthetic risk and explain why it belongs. For existing products, preserve established design and interaction conventions unless the task calls for changing them. Spend novelty on presentation, not on making ordinary controls unfamiliar.
Ground the design in its subject
Inspect the existing interface, routes, components, data access, and tests before deciding what is missing. Name the subject, its audience, and the page's single job. For an open-ended concept with no subject, choose one and state the choice. For an existing product, use the available evidence rather than inventing a new purpose or business rule.
Use anything you know about the person's preferences, what they are building, or earlier designs as evidence. Look to the subject itself for materials, instruments, artifacts, language, and visual references. Use real content from that world throughout the design.
Treat expected behavior as part of the requirement
The brief is not an exhaustive interaction specification. Implement ordinary behavior needed to use the requested feature safely and accessibly even when the user does not name it. Do not ask whether a form should retain input after an error or whether a dialog needs keyboard support. Those are implementation responsibilities, not optional enhancements.
Before coding, read Expected interface behavior. Use its categories and the application examples that match the task. Apply requirements only when their trigger exists. A static article needs working links and readable reflow, not invented loading spinners, accounts, or autosave.
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.
- 1mo ago Changed · +42 lines · +9 tokens per session ea8fa4024ccc
- 1mo ago First seen · 74 lines · 40 tokens per session scan A 3dcec049d60f
frontend-design is a skill published in the GitHub repository Firstp1ck/pi-coding-agent-forge (92 stars, last pushed today), licensed MIT. It adds 49 tokens to every session and 2,504 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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