Borrowing it
Nothing to install: this file belongs to bikeindex/bike_index. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/bikeindex/bike_index/main/.claude/skills/frontend-conventions/SKILL.mdgit clone --depth 1 https://github.com/bikeindex/bike_indexWrote 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/bikeindex/bike_index/frontend-conventions)<a href="https://agentmods.dev/skills/bikeindex/bike_index/frontend-conventions"><img src="https://agentmods.dev/badge/skills/bikeindex/bike_index/frontend-conventions/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/bikeindex/bike_index/frontend-conventions"><img src="https://agentmods.dev/badge/skills/bikeindex/bike_index/frontend-conventions.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 | $0.00260 | $0.08383 |
| Opus 5.5 | $0.00104 | $0.03353 |
| Sonnet 5.5 | $0.00052 | $0.01677 |
| Haiku 4.5 | $0.00026 | $0.00838 |
Grade A, and why
frontend-conventions scanned grade A with 1 finding 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 6d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **Change a component's signature, then open its `component_preview.rb`** — nothing renders previews in the suite, so a stale one raises `ArgumentError: unknown keyword` on its Lookbook page with the whole suite green. The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 6d ago Changed · +2 lines · +8 tokens per session 75ce1d134a17
- 18d ago Changed · +7 lines · +33 tokens per session f300013c16f9
- 29d ago Changed 7d5001154fdb
- 1mo ago Changed · +1 lines cc66a2591f19
- 1mo ago Changed · +1 lines 98c30113afe1
- 1mo ago Changed · -14 lines · -5 tokens per session 10798bf03ba9
- 1mo ago Changed · +3 lines 5af2545f95b6
- 1mo ago Changed · +7 lines · +7 tokens per session 636c4a85d1c5
- 1mo ago Changed · -4 lines b75ab89ef8fc
- 1mo ago First seen · 225 lines · 217 tokens per session scan A 1638ee5d56c8
frontend-conventions is a skill published in the GitHub repository bikeindex/bike_index (308 stars, last pushed today), licensed AGPL-3.0. It adds 260 tokens to every session and 8,383 once invoked, about $0.0010 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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