Detent
Design fluid, Apple-like interface motion: springs across SwiftUI, Compose, Material 3, Flutter, Motion and CSS, gesture physics, sourced presets, an MCP server and a Claude Code plugin.
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TomAs-1226
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
springReads a spring in any platform vocabulary (or a preset id) and returns it in every vocabulary — SwiftUI duration/bounce and response/dampingFraction, Compose and Material stiffness/dampingRatio, CASpringAnimation and Flutter mass/stiffness/damping, react-spring tension/friction, Motion visualDuratio…
export_springcompare_springsSide-by-side feel of several springs (specs or preset ids): duration, bounce, damping ratio, overshoot, peak time, settling time.
css_easingReturns a CSS linear() easing and duration that stays within a stated error of a spring, or samples a cubic-bezier into linear(). Use when a platform only accepts curves.
project_gestureWhere a flick comes to rest and which snap target to choose, using Apple's WWDC18 projection (velocity / 1000) · rate / (1 − rate) with UIScrollView's deceleration rate. Works in 1D (numbers) or 2D ({x, y}). Also returns how long the coast takes.
rubber_bandHow far content moves when dragged past an edge, using the iOS-style formula (1 − 1/(x·c/d + 1))·d with c = 0.55 by default (a reverse-engineered constant). Also returns the inverse, for resuming a drag.
search_presetsSearches ~110 sourced constants — Apple, Material 3 and Compose, Android, Flutter, web libraries (Motion, react-spring, Vaul, Sonner), design systems (Fluent, Carbon, Atlassian), research thresholds, game-feel timings. Each has a source URL and confidence (primary, secondary, reverse-engineered, mea…
get_presetThe full record of one preset (including notes and API spelling). Spring presets also come back described and converted to every vocabulary.
search_knowledgeSearches the principles, interaction patterns (press, snap to target, sheet detents, momentum scroll, paging, swipe to dismiss, back navigation, glass, fold glass, Dynamic Island, progress), platform vocabularies, research and glossary, and the Bezel house UI style: its philosophy and review checkli…
read_knowledgebezel_tokensColour tokens for Bezel, the house UI style, for a dark or light panel: Bezel's own colours, or every role grown from a seed colour the way Android's Monet does (the signal keeps the seed's chroma, ice is its temperature complement, amber is harmonized; fixed tones keep contrast for any seed). forma…
bezel_rulesbezel_componentbezel_contrastThe WCAG 2.2 contrast ratio between two hex colours, with pass or fail for normal text (AA 4.5, AAA 7), large text (AA 3, AAA 4.5) and non-text interface parts such as icons and control boundaries (3).
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
14/14 tools missing one or more hints — spring (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); export_spring (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); compare_springs (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +11 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Readable source code
1 file are minified or bundled, which is usually build output rather than concealment
Ship unminified, readable source.
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