# Altinity > Open-source publisher. Listings imported from github.com/Altinity — credited to the original author with their license. - **Listings:** 20 - **Total installs:** 0 - **Profile:** https://agentstack.voostack.com/s/altinity - **Website:** https://github.com/Altinity ## Published listings - [Altinity Expert Clickhouse Security](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-security) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-security` 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 DEFINER, impersonation, TLS/network exposure, Keeper/interserver security, encr… - [Altinity Expert Clickhouse Schema](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-schema) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-schema` Analyze ClickHouse table structure, partitioning, ORDER BY keys, materialized views, and identify schema design anti-patterns. Use for table design issues and optimization. - [Altinity Expert Clickhouse Replication](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-replication) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-replication` Diagnose ClickHouse replication health, Keeper connectivity, replica lag, and queue issues. Use for replication lag and read-only replica problems. - [Altinity Expert Clickhouse Part Log](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-part-log) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-part-log` Diagnose ClickHouse issues by analyzing system.part_log (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 ZooKeeper/Keeper znode growth correlated with part activity. - [Altinity Expert Clickhouse Storage](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-storage) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-storage` Diagnose ClickHouse disk usage, compression efficiency, part sizes, and storage bottlenecks. Use for disk space issues and slow IO. - [Altinity Expert Clickhouse Mutations](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-mutations) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-mutations` Track and diagnose ClickHouse ALTER UPDATE, ALTER DELETE, and other mutation operations. Use for stuck mutations and mutation performance issues. - [Altinity Expert Clickhouse Overview](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-overview) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-overview` 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 Expert Clickhouse Reporting](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-reporting) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-reporting` Diagnose ClickHouse SELECT query performance, analyze query patterns, identify slow queries, and find optimization opportunities. Use for query latency and timeout issues. - [Altinity Profiler Clickhouse](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-profiler-clickhouse) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-profiler-clickhouse` | - [Altinity Expert Clickhouse Memory](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-memory) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-memory` Diagnose ClickHouse RAM usage, OOM errors, memory pressure, and allocation patterns. Use for memory-related issues and out-of-memory errors. - [Altinity Expert Clickhouse Ingestion](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-ingestion) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-ingestion` Diagnose ClickHouse INSERT performance, batch sizing, part creation patterns, and ingestion bottlenecks. Use for slow inserts and data pipeline issues. - [Altinity Expert Clickhouse Merges](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-merges) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-merges` Diagnose ClickHouse merge performance, part backlog, and 'too many parts' errors. Use for merge issues and part management problems. - [Altinity Expert Clickhouse Metrics](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-metrics) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-metrics` Real-time monitoring of ClickHouse metrics, events, and asynchronous metrics. Use for load average, connections, queue monitoring, and resource saturation. - [Altinity Expert Clickhouse Index Analysis](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-index-analysis) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-index-analysis` 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 Expert Clickhouse Grants](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-grants) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-grants` Diagnose and resolve ClickHouse grant and authentication errors, especially after upgrades. Use when queries fail with ACCESS_DENIED/NOT_ENOUGH_PRIVILEGES, AUTHENTICATION_FAILED/WRONG_PASSWORD/REQUIRED_PASSWORD, or ON CLUSTER privilege errors; when system.* or INFORMATION_SCHEMA access is denied; or when grant behavior changes after version upgrades. - [Altinity Expert Clickhouse Kafka](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-kafka) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-kafka` Diagnose ClickHouse Kafka engine health, consumer status, thread pool capacity, and consumption issues. Use for Kafka lag, consumer errors, and thread starvation. - [Altinity Expert Clickhouse Caches](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-caches) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-caches` Analyze ClickHouse cache systems including mark cache, uncompressed cache, and query cache. Use for cache hit ratio issues and cache tuning. - [Altinity Expert Clickhouse Dictionaries](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-dictionaries) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-dictionaries` Analyze ClickHouse external dictionaries including configuration, memory usage, reload status, and performance. Use for dictionary issues and load failures. - [Altinity Expert Clickhouse Connection](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-connection) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-connection` 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 Expert Clickhouse Logs](https://agentstack.voostack.com/l/skill-altinity-altinity-skills-altinity-expert-clickhouse-logs) — Skill · Free · security-reviewed — `agentstack add skill-altinity-altinity-skills-altinity-expert-clickhouse-logs` Analyze ClickHouse system log table health including TTL configuration, disk usage, freshness, and cleanup. Use for system log issues and TTL configuration. --- Seller on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Install any with `agentstack add `.