clickhouse-js-node-troubleshooting
Troubleshoot and resolve common issues with the ClickHouse Node.js client (@clickhouse/client). Use this skill whenever a user reports errors, unexpected behavior, or configuration questions involving the Node.js client specifically — including socket hang-up errors, Keep-Alive problems, stream handling issues, data type mismatches, read-only user restrictions, proxy/TLS setup problems, or long-running query timeouts. Trigger even when the user hasn't precisely named the issue; vague symptoms like "my inserts keep failing" or "connection drops randomly" in a Node.js context are strong signals to use this skill. Do NOT use for browser/Web client issues.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/clickhouse/clickhouse-js --skill clickhouse-js-node-troubleshooting- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads clickhouse-js-node-troubleshooting automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
ClickHouse Node.js Client Troubleshooting
Reference: https://clickhouse.com/docs/integrations/javascript
⚠️ Node.js runtime only. This skill covers the
@clickhouse/clientpackage running in a Node.js runtime exclusively — including Next.js Node runtime API routes, React Server Components, Server Actions, and standard Node.js processes. Do not apply this skill to browser client components, Web Workers, Next.js Edge runtime, Cloudflare Workers, or any usage of@clickhouse/client-web. For browser/edge environments, the correct package is@clickhouse/client-web.
How to Use This Skill
- Identify the issue — match symptoms to the Issue Index below and read the corresponding reference file.
- Lead with the diagnosis — explain what's likely causing the issue before giving the fix.
- Note version constraints — flag if a fix requires a minimum client version and check it against what the user provided.
- Ask only what's missing — if the fix is version-dependent and you don't know their version, ask; otherwise help immediately.
Issue Index
Identify the user's issue from the list below and read the corresponding reference file for detailed troubleshooting steps.
| Issue | Symptoms | Reference file |
|---|---|---|
| Socket Hang-Up / ECONNRESET | socket hang up, ECONNRESET, intermittent connection drops, long-running queries timing out | reference/socket-hangup.md |
| Data Type Mismatches | Large integers returned as strings, decimal precision loss, Date/DateTime insertion failures, CANNOT_PARSE_INPUT_ASSERTION_FAILED inserting a UUID into a UInt128 column | reference/data-types.md |
| Read-Only User Errors | Errors when using response compression with readonly=1 users | reference/readonly-users.md |
| Proxy / Pathname URL Confusion | Wrong database selected, requests failing behind a proxy with a path prefix | reference/proxy-pathname.md |
| TLS / Certificate Errors | TLS handshake failures, certificate verification issues, mutual TLS setup | reference/tls.md |
| Compression Not Working | GZIP compression not activating for requests or responses | reference/compression.md |
| Logging Not Showing Anything | No log output, need custom logger integration | reference/logging.md |
| Query Parameters Not Interpolated | Parameterized queries not working, SQL injection concerns | reference/query-params.md |
FORMAT Clause / SHOW POLICIES Errors | Syntax error from a duplicate FORMAT, or SHOW [ROW] POLICIES failing even with a format provided | reference/query-format-clause.md |
Still Stuck?
FAQ
What does the clickhouse-js-node-troubleshooting skill do?
Troubleshoot and resolve common issues with the ClickHouse Node.js client (@clickhouse/client). Use this skill whenever a user reports errors, unexpected behavior, or configuration questions involving the Node.js client specifically — including socket hang-up errors, Keep-Alive problems, stream handling issues, data type mismatches, read-only user restrictions, proxy/TLS setup problems, or long-running query timeouts. Trigger even when the user hasn't precisely named the issue; vague symptoms like "my inserts keep failing" or "connection drops randomly" in a Node.js context are strong signals to use this skill. Do NOT use for browser/Web client issues.
How do I install clickhouse-js-node-troubleshooting?
Run npx skills add https://github.com/clickhouse/clickhouse-js --skill clickhouse-js-node-troubleshooting in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/clickhouse-js-node-troubleshooting/ (personal) or .claude/skills/clickhouse-js-node-troubleshooting/ (project).
Which AI agents can use clickhouse-js-node-troubleshooting?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is clickhouse-js-node-troubleshooting safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains clickhouse-js-node-troubleshooting?
It is published by clickhouse in clickhouse/clickhouse-js, and it is an official skill from the maker of the technology it covers. It has 81 recorded installs.
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