mroxso adc65f9819 feat: Spells app for saved, shareable Nostr queries (grimoire kind 777) (#33)
* feat: Spells app for saved, shareable Nostr queries (grimoire kind 777)

The original feedback mentioned "grimoire spells" — traced to
github.com/purrgrammer/grimoire, a third-party Nostr client with its
own draft NIP for kind 777 "Spell" events: a REQ filter (kinds,
authors, one tag filter, limit, time window) encoded as portable,
shareable tags, with $me/$contacts runtime variables and relative
timestamps ("7d", "now").

- src/hooks/useSpells.ts implements that draft NIP as-is (same tags,
  same variables, same relative-time grammar) rather than a
  reinterpretation, so a spell saved here round-trips with Grimoire.
- src/apps/spells: browse "My Spells" / "Discover", build one with
  NewSpellForm, and Run it on demand against the resolved filter,
  rendering kind-1 results with NoteCard.
- Only the "Spell" half is implemented; "Spellbook" (kind 30777,
  saved window layouts) is left as a documented follow-up.

Closes #24

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BYiUtZMQeA5RHggQw73wto

* fix: address review feedback on the Spells app

Per review:
- Scope is now derived (forced to "discover" when signed out) rather
  than stored as the requested value directly, matching the Feed
  app's pattern — signing out mid-session can no longer leave "My
  Spells" selected.
- resolveSpellFilter() now validates a spell's tag-filter letter
  (single a-zA-Z char) before using it as a "#<letter>" filter key,
  and clamps limit to [1, 500] instead of trusting a relay-sourced
  spell's number outright — a malformed or hostile spell can no
  longer produce a "#undefined" filter key or an enormous/NaN/zero
  limit. Added regression tests for all of these.
- NewSpellForm's Field now renders a real <label htmlFor> connected
  to each input's id (via useId()), and the Authors button group
  moved to a <fieldset>/<legend> instead of a label sitting over
  unrelated buttons — screen readers can now name every control.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BYiUtZMQeA5RHggQw73wto

* fix: validate spell tag filter/limit at write time, and hide malformed badges

Per review:
- encodeSpellTags() now validates the tag filter's letter and the
  limit before writing them, instead of only resolveSpellFilter()
  catching bad values on Run — a spell authored through this app can
  no longer save a filter it will silently fail to apply later.
  Exported isValidTagLetter() so both sides share one definition of
  "valid."
- The spell detail view's tag-filter badge now hides itself for a
  malformed tag filter (e.g. from a relay-sourced spell this app
  didn't author) instead of rendering "#undefined:" or similar.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BYiUtZMQeA5RHggQw73wto

* fix: reject non-integer/negative spell kinds, de-flake a timing test

Per remaining "previously missed" findings:
- parseSpell() now requires k tags to be non-negative integers
  (Number.isInteger && >= 0), not just finite — a relay-sourced spell
  claiming kind "1.5" or "-1" no longer passes through into a
  malformed filter.
- The resolveTimestamp wall-clock tests asserted toBeCloseTo a single
  captured `now`, which a slow runner or timing skew between the two
  Date.now() calls could flake. Replaced with a before/after range
  assertion.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BYiUtZMQeA5RHggQw73wto

---------

Co-authored-by: highperfocused <highperfocused@pm.me>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
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MKStack

The Complete Framework for Building Nostr Clients with AI

MKStack is an AI-powered framework for building Nostr applications with React 18.x, TailwindCSS 3.x, Vite, shadcn/ui, and Nostrify. Build powerful Nostr applications with AI-first development - from social feeds to private messaging, MKStack provides everything you need to create decentralized apps on the Nostr protocol.

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npm install -g @getstacks/stacks
stacks mkstack

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stacks agent
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📁 Project Structure

src/
├── components/           # UI components
│   ├── ui/              # shadcn/ui components (48+ available)
│   ├── auth/            # Authentication components
│   └── comments/        # Comment system components
├── hooks/               # Custom React hooks
│   ├── useNostr         # Core Nostr integration
│   ├── useAuthor        # User profile data
│   ├── useCurrentUser   # Authentication state
│   ├── useNostrPublish  # Event publishing
│   ├── useUploadFile    # File uploads
│   └── useZaps          # Lightning payments
├── pages/               # Page components
├── lib/                 # Utility functions
├── contexts/            # React context providers
└── test/                # Testing utilities

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MKStack includes 48+ shadcn/ui components:

Layout: Card, Separator, Sheet, Sidebar, ScrollArea, Resizable Navigation: Breadcrumb, NavigationMenu, Menubar, Tabs, Pagination Forms: Button, Input, Textarea, Select, Checkbox, RadioGroup, Switch, Slider Feedback: Alert, AlertDialog, Toast, Progress, Skeleton Overlay: Dialog, Popover, HoverCard, Tooltip, ContextMenu, DropdownMenu Data Display: Table, Avatar, Badge, Calendar, Chart, Carousel **And many more...

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Built-in deployment to NostrDeploy.com:

npm run deploy

Your app goes live instantly with:

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For detailed documentation on building Nostr applications with MKStack:

🤝 Contributing

MKStack is open source and welcomes contributions. The framework is designed to be:

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📄 License

MKStack is dedicated to the public domain.

To the extent possible under law, the authors have waived all copyright and related or neighboring rights to MKStack. You are free to copy, modify, distribute, and use this software for any purpose, commercial or non-commercial, without asking permission and without attribution.

Build amazing Nostr applications and help grow the decentralized web!


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Build your Nostr app in minutes, not months. Start with AI, deploy instantly.

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