pi-prefix-cache-compaction
Pi compaction that reuses the server's prefix cache (vLLM / SGLang / llama.cpp Anthropic endpoints): no cold re-prefill, plus a warm-up so the next turn starts from cache
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GITHUB · launched Sep 18, 2026 · 15 upvotes (top 52%) · 2 views
Niche: llm inference and deployment tools · 189 launches, 7 in the last 7 days ▲ +17% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI-native
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 189 launches in llm inference and deployment tools →
Could you build this?
Partial The script extension itself is concise, but understanding and aligning KV cache prefix boundaries across vLLM, SGLang, and llama.cpp chunked prefill implementations requires deep inference engine knowledge.
What it would actually take: This utility requires exact alignment of conversation history and system messages to the page/block size boundaries (e.g., 16 or 32 tokens in vLLM PagedAttention) and issuing warm-up requests without generating tokens. Implementing this requires specialized familiarity with LLM serving engine internals, RadixAttention trees, KV cache eviction policies, and exact Anthropic API simulation behavior.
Competitors
Other products that read as similar to this one : 53 launches clear the similarity bar, closest 8 shown.
Attention rank: #24 of 54 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 280 days after the earliest competitor.
- dsh-live-compact · github · 2026-11-03 · 135 upvotes · similarity 0.52
- genpark-dynamic-prompt-prefix-cache-skill · github · 2026-09-28 · 7 upvotes · similarity 0.41
- PrefixSim · github · 2026-11-04 · 59 upvotes · similarity 0.41
- pi-fast-jev-compaction · github · 2026-09-18 · 9 upvotes · similarity 0.40
- nano-lmcache · github · 2026-10-19 · 23 upvotes · similarity 0.39
- pi-clm · github · 2026-09-30 · 24 upvotes · similarity 0.36
- Cachet · hn · 2026-06-23 · 5 upvotes · similarity 0.36
- I'm running parallel Pi agents on a local sandbox · hn · 2026-05-03 · 8 upvotes · similarity 0.35
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