# Rerun Chunk Processing (agent skill)

> Rerun Chunk Processing is an agent skill (a SKILL.md file) from rerun-io/rerun. Core mechanics of the Rerun Chunk Processing API (rerun.chunk) — LazyChunkStream pipelines, Chunk, lenses (MutateLens/DeriveLens/Selector), RrdReader, writing optimized RRDs. It works with Claude Code and has 11,642 GitHub stars across a repository of 5 listed skills.

Core mechanics of the Rerun Chunk Processing API (rerun.chunk) — LazyChunkStream pipelines, Chunk, lenses (MutateLens/DeriveLens/Selector), RrdReader, writing optimized RRDs. Read BEFORE writing any ingestion/conversion/preprocessing code (convert an MCAP, build a recording from a dataset, preprocess an .rrd, port an old converter): it mandates reader+lens pipelines and steers away from hand-built chunks — no Chunk.from_columns for data a reader/lens can produce, no per-message rr.log, no…

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/rerun-io/rerun |
| Skill path | skills/rerun-chunk-processing/SKILL.md |
| Skill name | rerun-chunk-processing |
| GitHub stars | 11,642 |
| Installs on skills.sh | not listed |
| License | Apache-2.0 |
| Skills in repo | 5 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code |
| Category | Data & analysis |
| Last commit | Oct 26, 2026 |

## Add this skill

### Claude Code

```sh
git clone --depth 1 https://github.com/rerun-io/rerun.git
cp -r rerun/skills/rerun-chunk-processing ~/.claude/skills/rerun-chunk-processing   # personal, or .claude/skills in a project
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/rerun-io/rerun.git
cp -r rerun/skills/rerun-chunk-processing .agents/skills/rerun-chunk-processing   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/rerun-io/rerun.git
cp -r rerun/skills/rerun-chunk-processing .cursor/skills/rerun-chunk-processing   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

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Canonical page: https://appsgit.com/skills/rerun-io-rerun-chunk-processing
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