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 Kevin-Liu-01/Sigil-UI --skill sigil-cligit clone --depth 1 https://github.com/Kevin-Liu-01/Sigil-UIWrote 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/kevin-liu-01/sigil-ui/sigil-cli)<a href="https://agentmods.dev/skills/kevin-liu-01/sigil-ui/sigil-cli"><img src="https://agentmods.dev/badge/skills/kevin-liu-01/sigil-ui/sigil-cli/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/kevin-liu-01/sigil-ui/sigil-cli"><img src="https://agentmods.dev/badge/skills/kevin-liu-01/sigil-ui/sigil-cli.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 | $0.00166 | $0.01579 |
| Opus 5 | $0.00083 | $0.00790 |
| Sonnet 5 | $0.00033 | $0.00316 |
| Haiku 4.5 | $0.00017 | $0.00158 |
Grade A, and why
sigil-cli 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 10d 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 — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill — sigil-cli
All ten CLI commands in one place. Stop hunting through
AGENTS.md,SPEC.md, and the package README to figure out which command to run.
Quick reference
| Command | Purpose |
|---|---|
npx create-sigil-app |
Scaffold a brand-new app: deps, token CSS, base preset, components, agent instructions. Interactive. |
npx @sigil-ui/cli init |
Set up Sigil inside an existing project. Detects framework, asks about use case, recommends presets, configures everything. |
npx @sigil-ui/cli convert |
End-to-end conversion of an existing project: deps, tokens, CSS import, agent instructions. Heavier than init. |
npx @sigil-ui/cli add <name...> |
Copy components into your project's components/ folder. They still consume var(--s-*). |
npx @sigil-ui/cli preset list |
Browse all 46 presets by category (44 named + default + template). |
npx @sigil-ui/cli preset <name> |
Switch the active preset — regenerates the project's token CSS file. |
npx @sigil-ui/cli preset create |
Scaffold a custom preset with base preset, color, and font prompts. |
npx @sigil-ui/cli design generate |
Create a DESIGN.md from the current preset + any token overrides. |
npx @sigil-ui/cli design compile |
Parse DESIGN.md → emit CSS + Tailwind v4 @theme + W3C JSON. |
npx @sigil-ui/cli design sync |
Update the compile sections inside DESIGN.md from the current token tables. |
npx @sigil-ui/cli design extract <url> |
Crawl a reference URL and produce a full DESIGN.md from the inferred tokens. |
npx @sigil-ui/cli inspire <url-or-file> |
Draft token CSS, a custom preset, and a preview page from a reference (color palette, font pairing, etc.). |
npx @sigil-ui/cli docs |
Generate local custom-library docs and llms.txt from the project's tokens + components. |
npx @sigil-ui/cli adapter <name> |
Add a CSS bridge so shadcn, Bootstrap, or Material variables inherit your Sigil tokens. |
npx @sigil-ui/cli diff |
Show token CSS changes since the last sigil write. Run before commits to verify intent. |
npx @sigil-ui/cli doctor |
Validate project health: config, tokens, components, deps, CSS imports, preset selection. Run after any change. |
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.
- 10d ago First seen · 118 lines · 166 tokens per session scan A 1ea775313db8
sigil-cli is a skill published in the GitHub repository Kevin-Liu-01/Sigil-UI (9 stars, last pushed 1mo ago), licensed MIT. It adds 166 tokens to every session and 1,579 once invoked, about $0.0008 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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