topic: shard

13 modules sharing the shard name family (derived from the tree's prefix discipline).

The 'shard' topic family enables scalable, parallelized data management within the Nishi sovereign ecosystem by partitioning work and data across shards. The nx_shard module provides a parallelism-ready work-sharding primitive, while nx_shard_query implements a distributed read path for efficient, sharded queries. nx_shard_registry serves as the single source of truth for shard metadata, ensuring consistency across the ecosystem.

auto-narrated by the local model from this topic's module headers; links verified against the wiki index.

narrated overview -- maintained by the narration lane, module links verified against this wiki.

module	description	lines	funcs
nx_shard.nx	parallelism-ready work-sharding primitive.	160	6
nx_shard_compact.nx	fold a domain's PUBLIC shard to ONE segment via the store's own cap-aware	50	3
nx_shard_governance_gate.nx		86	7
nx_shard_guardrail.nx	CAP-SHARD-GUARDRAIL (cross-shard R4): org-level POLICY INHERITANCE. An org-default	17	2
nx_shard_guardrail_gate.nx	hermetic gate for CAP-SHARD-GUARDRAIL (R4). Proves the tighten-only inheritance:	47	3
nx_shard_query.nx	LIB: sharded SCATTER-GATHER query = the distributed READ PATH that makes the index scale	46	3
nx_shard_query_gate.nx	proves sharded scatter-gather top-k == single whole-corpus top-k (EXACT), incl. when the	62	4
nx_shard_registry.nx	the SSOT reader for the Nishi SHARDED ecosystem (CAP-SHARD-REGISTRY). Industry best-practice	86	6
nx_shard_registry_gate.nx		73	6
nx_shard_validator.nx	per-decl structural validator.	191	3
nx_shard_view.nx	the cross-shard FLEET VIEW builder (CAP-SHARD-VIEW). Serializes the shard registry	70	5
nx_shard_writer.nx	size-rotating sharded output writer.	172	14
nx_shard_writer_test.nx	smoke for size-rotating output writer.	50	1