{"slug": "show-hn-backpressure-systems-adds-mcp-and-cli", "title": "Show HN: backpressure.systems adds MCP and CLI", "summary": "Backpressure, a web-first interactive load simulator for system design and LLM serving, has launched with support for MCP and CLI. The tool lets users build a system on a canvas, apply concurrent load, and observe queue depth, time-to-first-token, throughput, and saturation points, with deterministic results for reproducibility.", "body_md": "# Backpressure: see what breaks before your users do\n\nBackpressure is a web-first, interactive load simulator for system design and LLM serving. You\nbuild a system on a canvas, apply real concurrent load, and watch where it breaks - queue depth,\ntime-to-first-token, throughput, and the moment it saturates and collapses. A deterministic\nqueueing engine backs every run, so the same design and the same load always produce the same\nresult, and each run is a shareable, reproducible artifact.\n\nThe launch focus is LLM serving: assemble a serving setup (model, quant, GPU or hardware,\nbatching), simulate concurrent users, and watch time-to-first-token and tokens per second degrade\nuntil the rig recovers or falls over. The same engine and visual language extend to general system\ndesign - load balancers, queues, caches, and datastores under pressure.\n\nThe interactive canvas needs JavaScript. Explore Backpressure without it here:", "url": "https://wpnews.pro/news/show-hn-backpressure-systems-adds-mcp-and-cli", "canonical_source": "https://backpressure.systems/mcp-and-cli", "published_at": "2026-08-26 10:59:32+00:00", "updated_at": "2026-08-26 11:16:36.820176+00:00", "lang": "en", "topics": ["developer-tools", "ai-infrastructure", "ai-tools"], "entities": ["Backpressure"], "alternates": {"html": "https://wpnews.pro/news/show-hn-backpressure-systems-adds-mcp-and-cli", "markdown": "https://wpnews.pro/news/show-hn-backpressure-systems-adds-mcp-and-cli.md", "text": "https://wpnews.pro/news/show-hn-backpressure-systems-adds-mcp-and-cli.txt", "jsonld": "https://wpnews.pro/news/show-hn-backpressure-systems-adds-mcp-and-cli.jsonld"}}