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n8n-expression-syntax
czlonkowski/n8n-mcpSkill
Validate n8n expression syntax and fix common errors. Use when writing n8n expressions, using {{}} syntax, accessing $json/$node variables, troubleshooting expression errors, mapping data between nodes, or referencing webhook data in workflows. Use this skill whenever configuring node fields that reference data from previous nodes — expressions are how n8n passes data between nodes, and getting the syntax wrong is the most common source of workflow errors. Also use when asked whether a complex expression hurts performance.
Why this score
This repo hosts 10 skills, so its 23,101 stars are split between them (about 2,310 each) for scoring.
Popularity score: 85/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank
Security
Scanned Oct 20, 2026 at commit 19b09f50efd8, with Cisco's open-source skill-scanner.
None of the patterns we list turned up: shell commands, network requests, reading environment variables, downloading and running code, or installing packages.
A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan
Alternatives
Other makers' add-ons that do the same job, next to this one.
| Name | Score | Stars | Context | Updated |
|---|---|---|---|---|
| This onen8n-expression-syntax czlonkowski/n8n-mcp · Skill | 85 | ★ 23k | ≈138 always | 16d ago |
| n8n-expressions-official n8n-io/skills · Skill Same job: workflow automation, also for n8n | 66 | ★ 542 | ≈83 always | 18d ago |
| n8n-skills pessini/langgraph-skills-agent · Skill Same job: workflow automation, also for n8n | 49 | ★ 14 | ≈86 always | 5mo ago |
| n8n-code-javascript czlonkowski/n8n-skills · Skill Same job: workflow automation, also for n8n | 79 | ★ 6.5k | ≈155 always | 20d ago |
| arkts-syntax-assistant SummerKaze/skill-arkts-syntax-assistant · Skill Both about syntax | 52 | ★ 88 | ≈27 always | 9mo ago |
| bpa-expression-helper data-goblin/power-bi-agentic-development · Subagent Both about expression and complex | 71 | ★ 1.1k | ≈58 in chat | 18d ago |