Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add Tiltely/lens/plugin install lensWrote 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/tiltely/lens/design)<a href="https://agentmods.dev/skills/tiltely/lens/design"><img src="https://agentmods.dev/badge/skills/tiltely/lens/design/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/tiltely/lens/design"><img src="https://agentmods.dev/badge/skills/tiltely/lens/design.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 | $0.00090 | $0.01251 |
| Opus 5.5 | $0.00036 | $0.00500 |
| Sonnet 5.5 | $0.00018 | $0.00250 |
| Haiku 4.5 | $0.00009 | $0.00125 |
Grade A, and why
design 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.
How it starts
The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.
The Lens of Interface Design
Read first: ${CLAUDE_PLUGIN_ROOT}/core/protocol.md and ${CLAUDE_PLUGIN_ROOT}/core/dossier.md. Dossier rules: read it, skip answered questions WITH skip lines, append your outputs.
This lens is technology-agnostic (protocol.md, "Lens agnosticism"). Component vocabulary adapts to whatever the project uses — the questions do not change.
Detect the design system (before Tier 2)
Inspect the project once and record design-system: in the dossier:
components.json+ aui/components dir → shadcn/ui@mui/material→ MUI ·@chakra-ui/*→ Chakra ·antd→ Ant Design- Tailwind only, no component library → utility-first custom
- none of the above → no design system (candidates come from platform primitives; Tier 3 asks whether adopting one pays off)
Question battery — design mode
Tier 1 — framing (always)
- What is the ONE primary action on this screen? (If the answer lists three, dig: which one does the business need most?)
- Who lands here and from where? (entry point shapes layout: deep link ≠ nav click)
Tier 2 — composition
- Component candidates: for the core interaction, name 2–3 compositions in the project's design system (or platform primitives if none) that could serve it — e.g., modal vs slide-over panel vs dedicated route; tabs vs accordion vs stepper. RANK them against: mobile ergonomics, state preserved on navigation, implementation cost. Recommend one, with the ranking visible.
- Where does this screen's navigation live — and is that consistent with the rest of the app? (nav items, tabs placement, back behavior on mobile web)
- Which states exist beyond happy path — loading, empty, error, partial? Show what each looks like (skeleton? empty-state CTA? toast vs inline error?).
- Does this app ship as a PWA, or will it? → load the depth pack
${CLAUDE_PLUGIN_ROOT}/skills/design/topics/pwa.mdand run its battery.
Tier 3 — deep dives (only when triggered)
- Forms involved → field-level validation timing (on blur? on submit?), error placement, and what happens to user input on failure.
- Data tables/lists → empty, 1 item, 10k items: same component?
- Dark mode shipped → are the chosen components token-driven or hardcoded colors?
- No design system detected → is it time to adopt one? What does consistency cost today vs the migration cost?
What ships with it
1 file 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 · 105 lines · 90 tokens per session scan A d2fe51cda25b
design is a skill published in the GitHub repository Tiltely/lens (5 stars, last pushed 2mo ago), licensed MIT. It adds 90 tokens to every session and 1,251 once invoked, about $0.0004 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.
Other skills, from other repositories
webgl-holographic-foil
A self-contained WebGL2 hero: thin-film interference over a crushed-foil surface whose palette shifts with the viewing angle; move the cursor to tilt the film.
html-ppt-hermes-cyber-terminal
OpenDesign + BYOK: choosing and wiring your own model, hands-on — cost, quality, and the routing decision. Built as a decision-grade AI literacy deck for engineers, IT, applied-AI teams.
html-ppt-taste-brutalist
16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill brutalist-skill (Tactical Telemetry mode).
visual-ralph
Visual Ralph orchestration for frontend UI from generated references, static references, or live URL targets, using $ultragoal with built-in visual verdict and pixel-diff evidence until the implementation matches and leaves a reproducible design system.
glance-canonical-layouts
Use this skill to create home screen widgets using Jetpack Glance Canonical Layouts from the Android Platform Samples project, or when asked to implement standard widget layout patterns (including Check List, Image Grid, Snap Scrolling, and Standard Toolbar).
accessibility
Consolidated accessibility skill entrypoint for WCAG 2.2, ARIA Authoring Practices, cognitive accessibility, Section 508, EN 301 549, design intent verification, and the Accessibility Planner workflow.