managing-database-sharding

Quick Review

This skill provides a generic framework for database sharding but lacks specific sharding knowledge. The description is too vague ('work with database sharding') for precise invocation. While the structure is reasonable with a clear 5-step process and referenced scripts exist (init_sharding.py, rebalance_shards.py, cross_shard_query.py), the content is mostly templated boilerplate applicable to any backend task. Critical sharding concepts (sharding keys, hash vs range strategies, shard rebalancing logic, cross-shard transactions) are absent. The skill would help organize sharding work but doesn't provide the specialized knowledge that would meaningfully reduce token costs compared to a CLI agent researching sharding strategies independently. Novelty is low-moderate because while sharding is complex, the skill doesn't deeply encode that complexity.