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 smicolon/ai-kit --skill devtools-patternsgit clone --depth 1 https://github.com/smicolon/ai-kitWrote 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/smicolon/ai-kit/devtools-patterns)<a href="https://agentmods.dev/skills/smicolon/ai-kit/devtools-patterns"><img src="https://agentmods.dev/badge/skills/smicolon/ai-kit/devtools-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/smicolon/ai-kit/devtools-patterns"><img src="https://agentmods.dev/badge/skills/smicolon/ai-kit/devtools-patterns.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 | $0.00035 | $0.02206 |
| Opus 5.5 | $0.00014 | $0.00882 |
| Sonnet 5.5 | $0.00007 | $0.00441 |
| Haiku 4.5 | $0.00003 | $0.00221 |
Grade A, and why
TanStack DevTools 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 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 — 416 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TanStack DevTools Patterns
This skill covers TanStack DevTools setup and usage for debugging React applications.
React Query DevTools
Installation
bun add -D @tanstack/react-query-devtools
Basic Setup
// main.tsx
import { QueryClientProvider } from '@tanstack/react-query'
import { ReactQueryDevtools } from '@tanstack/react-query-devtools'
import { createQueryClient } from '@/lib/query-client'
const queryClient = createQueryClient()
function App() {
return (
<QueryClientProvider client={queryClient}>
<RouterProvider router={router} />
<ReactQueryDevtools initialIsOpen={false} />
</QueryClientProvider>
)
}
Production Lazy Loading
// Only load devtools in development
import { lazy, Suspense } from 'react'
const ReactQueryDevtools = lazy(() =>
import('@tanstack/react-query-devtools').then((d) => ({
default: d.ReactQueryDevtools,
}))
)
function App() {
return (
<QueryClientProvider client={queryClient}>
<RouterProvider router={router} />
{import.meta.env.DEV && (
<Suspense fallback={null}>
<ReactQueryDevtools />
</Suspense>
)}
</QueryClientProvider>
)
}
DevTools Configuration
<ReactQueryDevtools
initialIsOpen={false}
position="bottom-right"
buttonPosition="bottom-right"
toggleButtonProps={{
style: {
marginBottom: '4rem', // Avoid overlapping with other UI
},
}}
/>
Embedded DevTools
import { ReactQueryDevtoolsPanel } from '@tanstack/react-query-devtools'
function AdminDashboard() {
const [isOpen, setIsOpen] = useState(false)
return (
<div>
<button onClick={() => setIsOpen(!isOpen)}>
Toggle Query Inspector
</button>
{isOpen && (
<div className="devtools-panel">
<ReactQueryDevtoolsPanel />
</div>
)}
</div>
)
}
Router DevTools
Installation
bun add -D @tanstack/router-devtools
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 · 416 lines · 35 tokens per session scan A 6a4604879554
TanStack DevTools Patterns is a skill published in the GitHub repository smicolon/ai-kit (6 stars, last pushed 1mo ago), licensed MIT. It adds 35 tokens to every session and 2,206 once invoked, about $0.0001 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 2026-09-03.
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