Altinity/altinity-skills

Altinity/altinity-skills

Skill Claude CodeCodex

Analyze ClickHouse cache systems including mark cache, uncompressed cache, and query cache. Use for cache hit ratio issues and cache tuning.

Altinity/altinity-skills

Skill Claude CodeCodex

Establishes the ClickHouse connection mode, cluster macro, and default log timeframe for diagnostics. Use first, before any other altinity-expert-clickhouse skill, to verify connectivity and set shared analysis rules.

Altinity/altinity-skills

Skill Claude CodeCodex

Analyze ClickHouse external dictionaries including configuration, memory usage, reload status, and performance. Use for dictionary issues and load failures.

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose and resolve ClickHouse grant and authentication errors, especially after upgrades. Use when queries fail with ACCESSDENIED/NOTENOUGHPRIVILEGES, AUTHENTICATIONFAILED/WRONGPASSWORD/REQUIREDPASSWORD, or ON CLUSTER privilege errors; when system. or INFORMATIONSCHEMA access is denied; or when grant behavior…

Altinity/altinity-skills

Skill Claude CodeCodex

Analyze whether ClickHouse indexes (PRIMARY KEY, ORDER BY, skipping indexes, projections) are being used effectively for actual query patterns. Use when investigating index effectiveness, ORDER BY key design, query-to-index alignment, or when queries scan more data than expected.

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose ClickHouse INSERT performance, batch sizing, part creation patterns, and ingestion bottlenecks. Use for slow inserts and data pipeline issues.

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose ClickHouse Kafka engine health, consumer status, thread pool capacity, and consumption issues. Use for Kafka lag, consumer errors, and thread starvation.

Altinity/altinity-skills

Skill Claude CodeCodex

Analyze ClickHouse system log table health including TTL configuration, disk usage, freshness, and cleanup. Use for system log issues and TTL configuration.

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose ClickHouse RAM usage, OOM errors, memory pressure, and allocation patterns. Use for memory-related issues and out-of-memory errors.

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose ClickHouse merge performance, part backlog, and 'too many parts' errors. Use for merge issues and part management problems.

Altinity/altinity-skills

Skill Claude CodeCodex

Real-time monitoring of ClickHouse metrics, events, and asynchronous metrics. Use for load average, connections, queue monitoring, and resource saturation.

Altinity/altinity-skills

Skill Claude CodeCodex

Track and diagnose ClickHouse ALTER UPDATE, ALTER DELETE, and other mutation operations. Use for stuck mutations and mutation performance issues.

Altinity/altinity-skills

Skill Claude CodeCodex

Runs a fast ClickHouse server health snapshot and routes to specialist skills. Use as the entry point for general health checks or when the problem area is not yet known.

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose ClickHouse issues by analyzing system.partlog (part creation, merges, mutations, downloads, removals, moves). Use for too many parts / micro-batch inserts, merge backlog or slow merges, mutation storms (ALTER DELETE/UPDATE), unusual replication DownloadPart churn, unexpected RemovePart spikes, or…

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose ClickHouse replication health, Keeper connectivity, replica lag, and queue issues. Use for replication lag and read-only replica problems.

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose ClickHouse SELECT query performance, analyze query patterns, identify slow queries, and find optimization opportunities. Use for query latency and timeout issues.

Altinity/altinity-skills

Skill Claude CodeCodex

Analyze ClickHouse table structure, partitioning, ORDER BY keys, materialized views, and identify schema design anti-patterns. Use for table design issues and optimization.

Altinity/altinity-skills

Skill Claude CodeCodex

Read-only ClickHouse security audit expert for live or exported systems. Use when assessing ClickHouse security posture, reviewing users, roles, grants, settings profiles, row policies, table functions, external sources, table engines, executable UDFs, audit logs, named collections, password hash hygiene, SQL SECURITY…

Altinity/altinity-skills

Skill Claude CodeCodex

Diagnose ClickHouse disk usage, compression efficiency, part sizes, and storage bottlenecks. Use for disk space issues and slow IO.

Altinity/altinity-skills

Skill Claude CodeCodex

Profile a ClickHouse cluster via MCP and emit a per-cluster "analyst" Skill the user can save in claude.ai. Activate when the user asks to "profile this ClickHouse", "generate an analyst skill", "build a schema guide", "map the data in this cluster", or regenerate an existing cluster-analyst Skill after schema…