Borrowing it
Nothing to install: this file belongs to Chrisissorry/lazyslides. 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/Chrisissorry/lazyslides/develop/.claude/skills/add-theme/SKILL.mdgit clone --depth 1 https://github.com/Chrisissorry/lazyslidesWrote 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/chrisissorry/lazyslides/add-theme)<a href="https://agentmods.dev/skills/chrisissorry/lazyslides/add-theme"><img src="https://agentmods.dev/badge/skills/chrisissorry/lazyslides/add-theme/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/chrisissorry/lazyslides/add-theme"><img src="https://agentmods.dev/badge/skills/chrisissorry/lazyslides/add-theme.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 | $0.00029 | $0.00560 |
| Opus 5.5 | $0.00012 | $0.00224 |
| Sonnet 5.5 | $0.00006 | $0.00112 |
| Haiku 4.5 | $0.00003 | $0.00056 |
Grade A, and why
add-theme 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 2mo 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.
What it actually says
Add Theme
You are helping the user create a custom CSS theme for their LazySlides project.
Step 1: Gather Brand Requirements
Ask the user:
- What brand or visual identity is this for?
- Primary accent color (hex code or description like "dark teal")
- Preferred fonts for headings and body text (or "keep defaults")
- Footer brand name and optional logo image
- Any other styling preferences (background gradient, etc.)
Step 2: Choose a Theme Name
Help the user pick a kebab-case name (e.g. acme-corp, dark-blue, conference-2026). This becomes both the filename (themes/<name>.css) and the frontmatter value (theme: <name>).
Step 3: Create the Theme File
Read assets/css/themes/default.css as the reference for all customizable properties. Create themes/<name>.css with the user's values. The theme can override any of these:
Typography:
--font-heading— headings, quotes, metric values (default: Source Serif 4)--font-body— paragraphs, lists, labels, footer (default: Plus Jakarta Sans)- Add
@import url(...)at the top for Google Fonts if needed
Primary color scale:
--color-primary-50through--color-primary-700— light tints to dark accents- Generate a harmonious 7-step scale from the user's chosen color
Footer branding:
--footer-brand-name— text shown in footer center--footer-logo-url— optional logo URL (e.g.url('/assets/images/brands/logo.svg'))
Theater background:
html, body { background: ... }— gradient behind the slide cards
Only include properties the user wants to change — omitted properties inherit from src/styles.css defaults.
Step 4: Apply the Theme
Update the target presentation's index.md frontmatter to use the new theme:
theme: <name>
Step 5: Preview
Run pnpm run dev and open the presentation in the browser to review. Iterate on colors, fonts, and spacing until the user is satisfied.
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.
- 2mo ago First seen · 66 lines · 29 tokens per session scan A 40eee6ee6eb5
add-theme is a skill published in the GitHub repository Chrisissorry/lazyslides (5 stars, last pushed 4mo ago), licensed MIT. It adds 29 tokens to every session and 560 once invoked, about $0.0001 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 2026-08-31.
add-theme compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| add-themeChrisissorry/lazyslides | Skill | 5 | 4mo ago | MIT | A | 29 | Claude Code |
| webgl-holographic-foilnexu-io/open-design | Skill | 106k | yesterday | Apache-2.0 | A | 41 | Claude Code, Codex |
| html-ppt-hermes-cyber-terminalnexu-io/open-design | Skill | 106k | yesterday | Apache-2.0 | A | 53 | Claude Code, Codex |
| html-ppt-taste-brutalistnexu-io/open-design | Skill | 106k | yesterday | Apache-2.0 | A | 78 | Claude Code, Codex |
| visual-ralphYeachan-Heo/oh-my-codex | Skill | 34k | 3d ago | MIT | A | 52 | Codex |
| glance-canonical-layoutsandroid/skills | Skill | 10k | yesterday | Apache-2.0 | A | 56 | Claude Code |
| accessibilitymicrosoft/hve-core | Skill | 1.6k | yesterday | MIT | A | 47 | Claude Code |