Hyeseong Kim cometkim

name: dependency-injection description: FastAPI pattern for app-scoped dependency injection via ResourceProvider[T] classes. Each provider owns one resource's construction and teardown as a single @asynccontextmanager, declares dependencies on other providers via constructor arguments, and is exposed as a fastapi.Depends callable; providers are composed into the app with compose_providers(*providers), which accepts None entries so conditional wiring inlines at the call site as provider if cond else None. "Resource" is load-bearing - this is only for things that live for the lifetime of the app. Per-request values (authenticated user, request-id, per-request DB transaction) use plain async def + Depends; ResourceProvider is not a universal DI container. Trigger whenever you add, refactor, or wire any app-scoped resource in a FastAPI project; HTTP clients, DB pools, service clients, Kafka producers/consumers, schedulers, caches, feature-flag clients, or any singleton that previously

Token counting: claude-opus-4-6 vs claude-opus-4-7

Generated: 2026-04-16 15:39:30 UTC

Both columns come from the real /v1/messages/count_tokens endpoint.

Summary by category

Category	claude-opus-4-6	claude-opus-4-7	Ratio

Analysis: Cryptocurrency Address Hijacker (Man-in-the-Browser Clipper)

This is a supply-chain cryptocurrency stealing payload — a "clipper" or "address swapper" that silently redirects crypto transactions to attacker-controlled wallets.

Core Architecture

The payload has four layers:

1. String Obfuscation Engine The bulk of the code is a multi-layered string decoding system (oFmFNH, iVp0dU7, byZJpo, fLOUxWf, etc.) using base91-like encoding with shuffled alphabets. Every meaningful string is encoded to evade static analysis.

Maybe you can flat using dot-free style function calls too.

However, it unnecessarly add runtime overhead, pollute the callstack, and even not intuitive as direct-style control flows are.

	const registry = new WeakMap<Redacted<any>, any>();

	/**
	* Redacted<T> is a basic primitive for handling credentials.
	* This prevents to leak your secrets to any output by implicit behaviors like `toString()`.
	*
	* @example
	*
	* ```ts
	* const password = Redacted.make('secret');

	import * as z from 'zod';

	type ReservedFields = 'Schema' \| 'KeyAsInputSchema' \| 'meta' \| '$Key' \| '$Type';

	type EnumDefinition<K extends string, V extends string \| number> = {
	readonly [key in K]: {
	value: V;
	description?: string;
	};
	} & {

	{
	"mcp": {
	"slack": {
	"type": "remote",
	"url": "https://mcp.slack.com/mcp",
	"oauth": {
	// Slack's officially support MCP for Claude Code, but there is nothing specific.
	// Just use their pre-registred client ID and redirect URL and OpenCode will automatically handle its port.
	"clientId": "1601185624273.8899143856786",
	"redirectUri": "http://localhost:3118/callback"

	"""Parametric FastAPI dependencies: write a generic dependency once, specialize per model class.

	A dependency that binds the request body wants a different Pydantic model per router
	while sharing one implementation — but FastAPI fixes a ``Body()`` parameter's model at
	function-definition time. Hand-rolling a closure factory per dependency needs memoization
	(so specializations stay usable as ``dependency_overrides`` keys), default handling, and a
	runtime ``__annotations__`` patch: ~20 lines of machinery each time.

	``parametric`` packages that machinery as a decorator. Declare the dependency once as a
	PEP 695 generic function whose single type parameter carries a class bound::

	IQ== 5
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	Kg== 14

	var __defProp = Object.defineProperty;
	var __name = (target, value) => __defProp(target, "name", { value, configurable: true });

	// node_modules/unenv/dist/runtime/_internal/utils.mjs
	// @__NO_SIDE_EFFECTS__
	function createNotImplementedError(name) {
	return new Error(`[unenv] ${name} is not implemented yet!`);
	}
	__name(createNotImplementedError, "createNotImplementedError");
	// @__NO_SIDE_EFFECTS__