Capability-based file APIs — use openat2 or similar to confine file writes to the work directory, preventing path traversal via ../../etc/passwd
2L Qwen3, d=5, 2h/1kv, hd=2
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Smart Engineering Delivers
In benchmarks, this alternative can run anywhere between 2x to 120x faster than Web streams in every runtime I've tested it on (including Cloudflare Workers, Node.js, Deno, Bun, and every major browser). The improvements are not due to clever optimizations, but fundamentally different design choices that more effectively leverage modern JavaScript language features. I'm not here to disparage the work that came before — I'm here to start a conversation about what can potentially come next.