matlab-choose-big-data-solution is a skill in matlab/matlab-agentic-toolkit, last changed 22 Oct 2026. It can run shell commands, reach the network and name web addresses — read the findings before installing.

From the author
Guide users or agents to the correct MATLAB tool for processing large tabular data in file-based formats (CSV, Parquet, delimited text, spreadsheets, MDF) that may not fit in memory. Use when a user or agent mentions large files, big data, out-of-memory errors, OOM, scaling up, tall arrays, datastores, or needs to process multiple tabular files. Covers the decision between datastore + tall, datastore + transform, and parallel execution. Also use when a user or agent has working in-memory code (readtable, parquetread) that runs out of memory and needs a migration path. Also covers building custom datastore classes for proprietary or non-standard formats — use when the task requires subclassing matlab.io.Datastore, implementing a custom reader, building an extensible datastore, or integrating a new file format with tall arrays or parallel computing. Do NOT use for MAT files (use matfile instead).

At a glance

What it can touch

How much a skill can do, not whether it is risky.

Pattern check

Nothing flagged

That isn't proof the skill is harmless.

Commit 032b4b6 · 29 Oct 2026

How the check works

Pattern check: nothing flagged

That isn't proof the skill is harmless.

Install

Each tab says whether it installs commit 032b4b6, the one we checked, or the latest version.

Read SKILL.md first
Licence not identified
Licence
1.2k
Repo stars
Publisher
Files

What it can touch

From the files and frontmatter at commit 032b4b6. This is how much a skill can do, not whether it is risky.

  • Runs shell commands

    Its instructions or files give the agent commands to run on your computer.

  • Reaches the network

    It sends or fetches data over the internet, for example with curl, an HTTP library or a package install.

  • Names web addresses

    It mentions outside web addresses the agent may visit. We list them but don't follow them.

    Outside links we did not follow

Pattern check

Pattern check: nothing flagged · commit 032b4b6 · 29 Oct 2026

We checked every text file in this skill, at commit 032b4b6 on 29 Oct 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.

How the check worksReport an incorrect finding

  • https://www.mathworks.com/content/dam/mathworks/license/pmrl/license.md
  • https://www.mathworks.com/help/matlab/import_export/testing-guidelines-for-custom-datastores.html

Format check

Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.

  • Agent Skills specPasses

    The open format from agentskills.io, held to what the strictest agents enforce, so one folder loads everywhere.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/custom-datastore/implementation.md (467 lines), references/custom-datastore/mixin-decision-tree.md (136 lines), references/custom-datastore/testing-guidelines.md (159 lines) and references/tall-array-effective-use.md (168 lines). B5

      Fix: Add a short list of the sections at the top of each.

  • Claude CodePasses

    Claude Code reads its own extra fields, ignores unknown ones, and still loads a skill whose frontmatter is broken, without its fields.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/custom-datastore/implementation.md (467 lines), references/custom-datastore/mixin-decision-tree.md (136 lines), references/custom-datastore/testing-guidelines.md (159 lines) and references/tall-array-effective-use.md (168 lines). B5

      Fix: Add a short list of the sections at the top of each.

  • Claude apps & API uploadPasses

    Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.

    • Note

      The description is 907 characters. The claude.ai Help Center says 200 at most, though Anthropic's API docs and validator allow 1,024. D4

      Fix: If the claude.ai upload refuses it, trim the description to 200 characters.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/custom-datastore/implementation.md (467 lines), references/custom-datastore/mixin-decision-tree.md (136 lines), references/custom-datastore/testing-guidelines.md (159 lines) and references/tall-array-effective-use.md (168 lines). B5

      Fix: Add a short list of the sections at the top of each.

  • OpenAI (Codex & API)Passes
  • VS Code & CopilotPasses

SKILL.md

We only show SKILL.md text here when its licence clearly allows it.

Read SKILL.md on GitHub (opens in a new tab)

Files

More from matlab/matlab-agentic-toolkit

SkillWhat it can touchPattern checkLicenceUpdated
  • Reaches the network
  • Names web addresses
Pattern check: Nothing flaggedNo licence10 Sept 2026
  • Names web addresses
Pattern check: Nothing flaggedNo licence24 Sept 2026
  • Names web addresses
Pattern check: Nothing flaggedNo licence31 Jul 2026
  • Names web addresses
Pattern check: Nothing flaggedNo licence13 Aug 2026
  • Runs shell commands
  • Names web addresses
Pattern check: Nothing flaggedNo licence8 Oct 2026
  • Runs shell commands
  • Names web addresses
Pattern check: Nothing flaggedNo licence13 Aug 2026
All skills in matlab/matlab-agentic-toolkit

Other Data & analytics skills

Same category, most repo stars first.

SkillWhat it can touchPattern checkLicenceUpdated
  • Runs shell commands
Pattern check: Nothing flaggedMIT2 Oct 2026
  • Instructions only
Pattern check: Nothing flaggedMIT11 Aug 2026
healthCode quality dashboard. (gstack)

garrytan/gstack

  • Runs shell commands
  • +1 more

Pattern check: 1 item to reviewMITUpdated 27 Oct 2026

  • Runs shell commands
  • Pre-approves tools
Pattern check: 1 item to reviewMIT27 Oct 2026
landing-reportRead-only queue dashboard for workspace-aware ship. (gstack)

garrytan/gstack

  • Runs shell commands
  • +2 more

Pattern check: 1 item to reviewMITUpdated 27 Oct 2026

  • Runs shell commands
  • Reaches the network
  • +1 more
Pattern check: 1 item to reviewMIT27 Oct 2026
  • Runs shell commands
Pattern check: Nothing flaggedMIT23 Oct 2026
  • Runs shell commands
  • Reaches the network
Pattern check: Nothing flaggedMIT24 Jul 2026