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 agentmods add skills/fellipeutaka/leon/tanstack-hotkeysnpx skills add fellipeutaka/leon --skill tanstack-hotkeysgit clone --depth 1 https://github.com/fellipeutaka/leonWhat 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 | $0.00055 | $0.01385 |
| Opus 5 | $0.00028 | $0.00692 |
| Sonnet 5 | $0.00011 | $0.00277 |
| Haiku 4.5 | $0.00006 | $0.00138 |
Grade A, and why
tanstack-hotkeys 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 3d 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 — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TanStack Hotkeys (React)
Type-safe keyboard shortcut management for React. Package: @tanstack/react-hotkeys.
All framework packages re-export everything from @tanstack/hotkeys core — no separate install needed.
Quick Start
import { useHotkey } from '@tanstack/react-hotkeys'
function App() {
useHotkey('Mod+S', () => saveDocument())
return <div>Press Cmd+S (Mac) or Ctrl+S (Windows) to save</div>
}
Mod resolves to Meta (Cmd) on macOS, Control on Windows/Linux.
Core Hooks
useHotkey(hotkey, callback, options?)
Primary hook. Accepts string ('Mod+S') or RawHotkey object ({ key: 'S', mod: true }).
Callback receives (event: KeyboardEvent, context: { hotkey, parsedHotkey }).
Auto-syncs callback every render (no stale closures). Auto-cleans up on unmount.
// String form
useHotkey('Mod+S', () => save())
// Object form
useHotkey({ key: 'S', mod: true }, () => save())
// Conditional
useHotkey('Escape', () => onClose(), { enabled: isOpen })
// Scoped to element (must be focusable — add tabIndex)
const ref = useRef<HTMLDivElement>(null)
useHotkey('Escape', () => close(), { target: ref })
Default options:
| Option | Default | Notes |
|---|---|---|
enabled |
true |
|
preventDefault |
true |
Overrides browser defaults like Cmd+S |
stopPropagation |
true |
|
eventType |
'keydown' |
Also supports 'keyup' |
requireReset |
false |
When true, fires once until all keys released |
ignoreInputs |
smart | false for Ctrl/Meta combos & Escape; true for single keys & Shift/Alt combos |
target |
document |
Accepts DOM element, window, or React ref |
conflictBehavior |
'warn' |
'error', 'replace', 'allow' |
useHotkeySequence(sequence, callback, options?)
Vim-style multi-key sequences. Keys pressed in order within timeout.
useHotkeySequence(['G', 'G'], () => scrollToTop())
useHotkeySequence(['D', 'I', 'W'], () => deleteInnerWord(), { timeout: 500 })
// With modifiers
useHotkeySequence(['Mod+K', 'Mod+C'], () => commentSelection())
What ships with it
2 files 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.
- 3d ago First seen · 170 lines · 55 tokens per session scan A 12069126f30d
tanstack-hotkeys is a skill published in the GitHub repository fellipeutaka/leon (5 stars, last pushed 5d ago), licensed MIT. It adds 55 tokens to every session and 1,385 once invoked, about $0.0003 per session on Opus 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.
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