Skill Claude CodeCodex
Diagnose distributed system failures caused by network faults, unreliable clocks, or process pauses — and map each to its correct mitigation. Use when: a node is intermittently timing out with no clear network outage; a lock-holder or leader keeps acting after being declared dead (zombie leader / split brain via…
Skill Claude CodeCodex
Select a data encoding format (JSON, Protobuf, Thrift, or Avro) and design a schema evolution strategy that preserves backward and forward compatibility through rolling upgrades. Use when asked "should I use Protobuf or JSON?", "how do I evolve my schema without breaking old clients?", "how does Avro schema evolution…
Skill Claude CodeCodex
Classify a data workload as OLTP, OLAP, or hybrid, then recommend the appropriate database architecture — transactional database, dedicated data warehouse, or both with an ETL pipeline. Use when asked "should I use a data warehouse?", "why are my analytics queries slow on my production database?", "should I use…
Skill Claude CodeCodex
Select the right partitioning (sharding) strategy — range, hash, or compound key — and configure secondary indexes, rebalancing, and request routing for a distributed database. Use when: designing a partition key for a new system; diagnosing write hotspots on monotonically increasing keys (timestamps, auto-increment…
Skill Claude CodeCodex
Diagnose active replication failures by mapping symptoms to leader failover pitfalls, replication lag anomalies, or quorum edge cases — and produce a structured remediation plan. Use when: data just written disappears or shows stale on re-read (read-after-write violation); records appear and vanish on refresh…
Skill Claude CodeCodex
Choose a replication topology (single-leader, multi-leader, or leaderless) and configure it correctly — including sync vs. async mode, quorum parameters (w + r > n), and consistency guarantees. Use when designing replication for a new system, configuring quorum values for Cassandra/Riak/DynamoDB, deciding how to…
Skill Claude CodeCodex
Select the right storage engine architecture (LSM-tree, B-tree, or in-memory) for a database workload using a 7-dimensional scored trade-off analysis. Use when evaluating RocksDB vs InnoDB vs LevelDB, diagnosing write amplification in production, choosing between write-optimized vs read-optimized storage, selecting a…
Skill Claude CodeCodex
Design a stream processing system for unbounded, continuously arriving data. Use when choosing a message broker (Kafka vs RabbitMQ), implementing change data capture (CDC) from PostgreSQL, MySQL, or MongoDB via Debezium or Maxwell, selecting window types for aggregation (tumbling, hopping, sliding, session), joining…
Skill Claude CodeCodex
Choose the correct transaction isolation level and serializability implementation for an application's concurrency patterns. Use when: selecting an isolation level for a new system; evaluating whether read committed or snapshot isolation is safe for your access patterns; deciding whether to upgrade to serializable and…
Plugin Claude Code
14 skills for outbound prospecting, pipeline filling, and sales conversation opening, extracted from Fanatical Prospecting by Jeb Blount.
Skill Claude CodeCodex
Design a balanced multi-channel prospecting cadence that prevents single-channel-obsession — the career-limiting habit of defaulting to the one channel you are most comfortable with while avoiding the channels that generate friction. Use this skill when someone asks about "prospecting cadence", "channel mix"…
Skill Claude CodeCodex
Diagnose and coach through call reluctance, prospecting avoidance, and sales slumps. Use this skill when you can't make yourself prospect, are procrastinating on cold calls, avoiding the phone, or stuck in a low-activity week. Produces a diagnosis and 1-week intervention plan for: why can't I prospect, prospecting…