Large Scale Deduplication

Q: What is a Claude Code skill and how does the Large Scale Deduplication skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Large Scale Deduplication is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: general-misc · Last updated: 2026-05-21

tool:salesforce

Strategies and tooling for large-scale data deduplication in Salesforce: tuning matching rules for high-volume orgs, batch merge jobs, third-party dedup tools (DemandTools, Cloudingo), surviving record selection logic, and post-merge validation. Use when cleaning millions of duplicate records, automating merges beyond UI limits, or designing enterprise dedup workflows. NOT for duplicate rule configuration (use admin/duplicate-management). NOT for standard Duplicate Management UI setup. NOT for single-record field-resolution questions (use data/record-merge-implications).

Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Large Scale Deduplication includes at least one code block. At roughly 2,356 words the SKILL.md is on the longer end of the catalog distribution.

Original author: Pranav Nagrecha
Indexed lastmod: 2026-05-21
Catalog position: General · general-misc
Indexed related skills: 10

How Large Scale Deduplication fits the catalog

Large Scale Deduplication sits in the General category under the general-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Use this skill when an org has tens of thousands to millions of duplicate records and needs a programmatic strategy to identify, prioritize, and merge them safely. It covers Apex batch merge patterns, Bulk API–based duplicate identification, surviving record scoring logic, matching rule tuning for high-volume orgs, third-party tool selection, and post-merge validation. It does not cover standard Duplicate Management UI configuration — use admin/duplicate-management for that.

What this skill does

Large Scale Deduplication is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/large-scale-deduplication/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when cleaning millions of duplicate records, automating merges beyond UI limits, or designing enterprise dedup workflows. NOT for duplicate rule configuration (use admin/duplicate-management).

Who uses this skill

The Large Scale Deduplication Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/large-scale-deduplication
curl -L https://claudskills.com/skills/large-scale-deduplication/SKILL.md \
  -o ~/.claude/skills/large-scale-deduplication/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/large-scale-deduplication/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/large-scale-deduplication/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\large-scale-deduplication\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Large Scale Deduplication Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/large-scale-deduplication/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Large Scale Deduplication skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Large Scale Deduplication skill?

Use Large Scale Deduplication when your Claude Code task falls under the General category — specifically in the general misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Large Scale Deduplication" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Large Scale Deduplication skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Large Scale Deduplication is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Author: Pranav Nagrecha

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

Pranav Nagrecha. (2026). Large Scale Deduplication [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/large-scale-deduplication/

BibTeX

@misc{large-scale-deduplication-2026,
  author    = {Pranav Nagrecha},
  title     = {Large Scale Deduplication [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/large-scale-deduplication/}
}

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Security scan

Grade A · scanned 2026-07-06 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/large-scale-deduplication/#security)

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