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 dembrandt/dembrandt-skills --skill modal-and-overlay-patternsgit clone --depth 1 https://github.com/dembrandt/dembrandt-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/dembrandt/dembrandt-skills/modal-and-overlay-patterns)<a href="https://agentmods.dev/skills/dembrandt/dembrandt-skills/modal-and-overlay-patterns"><img src="https://agentmods.dev/badge/skills/dembrandt/dembrandt-skills/modal-and-overlay-patterns/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/dembrandt/dembrandt-skills/modal-and-overlay-patterns"><img src="https://agentmods.dev/badge/skills/dembrandt/dembrandt-skills/modal-and-overlay-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- 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 | $0.00038 | $0.04097 |
| Opus 5.5 | $0.00015 | $0.01639 |
| Sonnet 5.5 | $0.00008 | $0.00819 |
| Haiku 4.5 | $0.00004 | $0.00410 |
Grade A, and why
modal-and-overlay-patterns 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 12d 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 — 346 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Modal and Overlay Patterns
Overlays appear above the main content layer. They range from lightweight popovers (non-blocking, anchored to a trigger) to full blocking modals (require a user response before the app continues). Choosing the right overlay type for the task prevents unnecessary interruption and keeps the user oriented.
The Overlay Hierarchy
Choose the lightest type that satisfies the task. Heavier overlays carry higher cognitive cost.
| Type | Blocks background | Anchored to trigger | Typical content | Dismiss with |
|---|---|---|---|---|
| Tooltip | No | Yes | 1–2 lines of explanatory text | Cursor leave / focus out |
| Popover | No | Yes | Short interactive content: a form field, a picker, a small list | Click outside, Escape, explicit close |
| Dropdown / Menu | No | Yes | List of actions or options | Click outside, Escape, selection |
| Bottom sheet (mobile) | Partial (dimmed) | No | Actions or content on small screens | Swipe down, tap scrim, Escape |
| Drawer / Side panel | Partial (dimmed) | No | Secondary editing, detail views, long forms | Escape, explicit close; optionally click scrim |
| Dialog / Modal | Yes (full scrim) | No | Blocking task: confirm action, fill required form | Escape (non-destructive only), explicit button |
| Full-screen overlay | Yes (complete) | No | Immersive task: media viewer, complex configuration | Explicit close only |
Decision rule: If the user can continue using the rest of the app while the overlay is open, use a non-blocking type (drawer, popover). If the app must wait for the user's response, use a modal.
One Shell for the Whole Family
Tooltip, popover, drawer, bottom sheet and dialog are one family, not five components. They share a single shell: the same raised surface, one hairline border, one corner radius, and a shadow that grows with modality. The ones that carry a header and footer share what sits inside: a title that names the object, a hairline under the header, and one footer order used everywhere. Only size, anchoring (arrow or centred) and blocking change between them.
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.
- 12d ago Changed · +11 lines be223f52fb1f
- 19d ago Changed · +5 lines f4b846566477
- 26d ago Changed · +4 lines · -30 tokens per session ddd7b10a0a33
- 28d ago Changed · +51 lines c5dd7505a72e
- 1mo ago Changed · +4 lines 66926b71162b
- 1mo ago First seen · 271 lines · 68 tokens per session scan A 0d5cb917a569
modal-and-overlay-patterns is a skill published in the GitHub repository dembrandt/dembrandt-skills (169 stars, last pushed 5d ago), licensed MIT. It adds 38 tokens to every session and 4,097 once invoked, about $0.0002 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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