# elasticsearch-reindex

> Claude/Codex skill by [@elastic](https://omgskills.com/library/elastic/index.md) · 4 stars · Updated 2026-10-23

Guide Elasticsearch reindex for performance: local and remote, slicing, throttling, task API. Use when copying or migrating indices, changing mappings, or transforming during reindex.

## Install

```sh
git clone https://github.com/elastic/claude-plugin /tmp/claude-plugin && ln -s /tmp/claude-plugin/skills/elasticsearch/elasticsearch-reindex ~/.claude/skills/elasticsearch-reindex
```

## From README

Elasticsearch Reindex Copy documents from source indices or data streams to a destination using POST /reindex. An expert reindex workflow prepares the destination explicitly, chooses local versus remote execution, filters at the source when only a subset is needed, runs long copies asynchronously, tracks the task to completion, and verifies the destination document count before reporting results. Environment Configuration This skill executes Elasticsearch operations through the elastic CLI. If the elastic CLI is not installed, tell the user what it is needed for. Do not guess credentials, call the HTTP API directly, or attempt other workarounds. This skill references operations in HTTP-shorthand form (e.g., GET /, GET /cat/indices, GET /{index}/mapping, GET /{index}/settings/index.mode, POST /query). The Operations table at the end of this document maps each shorthand to the equivalent elastic CLI command — always use the CLI rather than calling the HTTP API directly.

## Links

- HTML page: https://omgskills.com/library/elastic/claude-plugin/skills/elasticsearch/elasticsearch-reindex/
- GitHub: https://github.com/elastic/claude-plugin
- Author: [@elastic](https://omgskills.com/library/elastic/index.md)

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