clean-data
Data cleaning, entity matching, and deduplication skill for Claude Code and Codex: triage, standardize, and validate a CSV, Excel, or JSON list of B2B companies or contacts before enrichment. Normalizes company names and domains, validates emails and phone numbers, matches and deduplicates records, and tags invalid rows non-destructively. Run before enrichment or CRM import to avoid paying for noisy records. Use for CRM enrichment prep, company name and website matching, entity matching, and contact deduplication. Works in Claude Code, Codex, and n8n via MCP.
Why this score
This repo hosts 10 skills, so its 266 stars are split between them (about 27 each) for scoring.
Popularity score: 60/100 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 8b9a83b05a73, 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
Prompts that use Excel
Alternatives
Other makers' add-ons that do the same job, next to this one.
| Name | Score | Stars | Context | Updated |
|---|---|---|---|---|
| This oneclean-data explorium-ai/gtm-skills · Skill | 60 | ★ 266 | ≈144 always | 24d ago |
| data-clean dathere/qsv · Skill Same job: spreadsheets, also for Excel | 63 | ★ 3.8k | ≈24 always | 16d ago |
| add-data-source microsoft/power-platform-skills · Skill Same job: spreadsheets, also for Excel | 70 | ★ 1.0k | ≈129 always | 16d ago |
| n8n-data-tables-official n8n-io/skills · Skill Same job: workflow automation, also for n8n | 66 | ★ 542 | ≈86 always | 18d ago |
| data-analysis-skills cabbage2000-lab/data-analysis-skills · Skill Same job: spreadsheets, also for Excel | 57 | ★ 21 | ≈54 always | 26d ago |
| n8n-binary-and-data czlonkowski/n8n-mcp · Skill Same job: workflow automation, also for n8n | 85 | ★ 23k | ≈146 always | 16d ago |