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 oborchers/fractional-cto --skill saas-responsivegit clone --depth 1 https://github.com/oborchers/fractional-ctoWrote 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/oborchers/fractional-cto/saas-responsive)<a href="https://agentmods.dev/skills/oborchers/fractional-cto/saas-responsive"><img src="https://agentmods.dev/badge/skills/oborchers/fractional-cto/saas-responsive/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/oborchers/fractional-cto/saas-responsive"><img src="https://agentmods.dev/badge/skills/oborchers/fractional-cto/saas-responsive.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 | $0.00075 | $0.00766 |
| Opus 5.5 | $0.00030 | $0.00306 |
| Sonnet 5.5 | $0.00015 | $0.00153 |
| Haiku 4.5 | $0.00007 | $0.00077 |
Grade A, and why
saas-responsive 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 5d 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 — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Responsive Design Means Knowing What to Sacrifice
Over 55% of global web traffic comes from mobile, but complex SaaS on small screens requires deliberate sacrifice, not automatic scaling. The best SaaS products do not replicate their desktop experience on mobile — they extract the subset of functionality that makes sense for the context.
The Sacrifice Principle
Study how leading products handle this:
- Linear mobile focuses on viewing/updating issues and responding to comments. Sprint planning and complex filtering stay desktop-only.
- Notion mobile converts multi-column database views to card layouts.
- Slack mobile focuses on messaging core — channels, threads, DMs. Complex admin features stay desktop-only.
The question is not "how do we make this fit on mobile?" but "what subset of functionality makes sense in a mobile context?"
Breakpoint Strategy
| Breakpoint | Range | Layout |
|---|---|---|
| Desktop | ≥1024px | Full sidebar, multi-column layouts, complete data tables |
| Tablet | 768–1023px | Collapsible sidebar, reduced columns, touch-friendly controls |
| Mobile | ≤767px | Bottom navigation, single-column layouts, cards replacing tables |
Touch Targets
Minimum sizes are non-negotiable:
| Standard | Minimum Size |
|---|---|
| Apple HIG | 44x44px |
| Material Design | 48x48dp |
All interactive elements — buttons, links, checkboxes, toggles — must meet these minimums on touch devices.
Tables on Mobile
Two patterns are necessary in a reusable application — the choice depends on data density and the user's primary task:
Pattern 1: Card Layout Conversion
Transform each table row into a card. Best for resource lists (orders, customers, products) where users browse and act on individual items.
Pattern 2: Horizontal Scroll with Frozen Column
Freeze the first column (identifying information) and allow horizontal scrolling. Best for comparison data where column relationships matter.
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.
- 5d ago First seen · 74 lines · 75 tokens per session scan A 450b038715d0
saas-responsive is a skill published in the GitHub repository oborchers/fractional-cto (32 stars, last pushed 5d ago), licensed MIT. It adds 75 tokens to every session and 766 once invoked, about $0.0003 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 2026-10-13.
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