Pion-native commands

The commands that have no Redis equivalent, by family. Each page is assembled at build time from the document that specifies the family, so the wire forms here are the wire forms the server implements. The command index lists every command the engine dispatches, generated from the same table MULTI validates against.

Family	Needs	What it is
KV.PREFIX.*	--kvcache	The prefix registry: register a prompt prefix once, look it up from any process, block-hash membership for cache-aware routers
V.*	--kvcache	The V-store the prefix cache is built on: token-indexed K/V storage, V.STOREBATCH / V.FETCH … RANGE / BATCH, quantization tiers
ATTEND.*	--kvcache (+ --metal-attention)	Stage 2: Pion computes the attention over cached K/V itself, including the sparse long-context selector
SSM.PREFIX.*	--kvcache	Recurrent-state companion for Mamba / GDN / hybrid models
MOE.EXPERT.*	--moe-cache DIR	MoE expert paging: tiered expert weights, access histograms, HIST-guided pruning
FT.* and VSET	any profile with HNSW	Vector search, BM25 and hybrid retrieval; the Redis 8 VSET commands (one vector set per key)
AI.*	--nle-embed / an embedding backend	Semantic cache, embeddings, routing, the gateway commands
RAG.* · AI.KNN_LM.* · NEURON.PKM.*	--kvcache	Speculative RAG, the kNN-LM datastore, product-key memory
PION.STATS and INFO	—	The value receipt and the server's telemetry