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 davidvkimball/obsidian-dev-skills --skill obsidian-theme-devgit clone --depth 1 https://github.com/davidvkimball/obsidian-dev-skillsWrote 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/davidvkimball/obsidian-dev-skills/obsidian-theme-dev)<a href="https://agentmods.dev/skills/davidvkimball/obsidian-dev-skills/obsidian-theme-dev"><img src="https://agentmods.dev/badge/skills/davidvkimball/obsidian-dev-skills/obsidian-theme-dev/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/davidvkimball/obsidian-dev-skills/obsidian-theme-dev"><img src="https://agentmods.dev/badge/skills/davidvkimball/obsidian-dev-skills/obsidian-theme-dev.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 | $0.00032 | $0.00317 |
| Opus 5.5 | $0.00013 | $0.00127 |
| Sonnet 5.5 | $0.00006 | $0.00063 |
| Haiku 4.5 | $0.00003 | $0.00032 |
Grade A, and why
obsidian-theme-dev 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.
What it actually says
Obsidian Theme Development Skill
This skill provides patterns and rules for developing Obsidian themes, focusing on CSS/SCSS development, styling conventions, and theme-specific coding practices.
Purpose
To ensure consistent theme development, proper CSS organization, and adherence to Obsidian's theming patterns and CSS variable usage.
Scope
This skill covers:
- Writing or modifying CSS/SCSS for
theme.css - Working with Obsidian's CSS variables and theming system
- Implementing responsive design or dark/light mode support
- Debugging CSS layout or styling issues
- CSS/SCSS coding conventions for Obsidian themes
Core Rules
- Use Obsidian CSS Variables: Always prefer Obsidian's built-in CSS variables over hardcoded values
- Consistent Naming: Use a consistent naming convention (BEM, prefixed classes, or other - see conventions file)
- Mobile-First: Consider mobile layouts and responsive design
- Dark/Light Mode Support: Test themes in both light and dark modes
- Performance: Minimize CSS complexity and avoid expensive selectors
Bundled Resources
references/theme-best-practices.md: Essential CSS patterns and Obsidian variable usagereferences/theme-coding-conventions.md: CSS/SCSS style guidelines and naming conventions
What ships with it
2 files 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 First seen · 34 lines · 32 tokens per session scan A 4f93deb7fb19
obsidian-theme-dev is a skill published in the GitHub repository davidvkimball/obsidian-dev-skills (54 stars, last pushed 1mo ago), licensed MIT. It adds 32 tokens to every session and 317 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 2026-08-30.
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