matlab-prepare-signal-data is a skill in matlab/matlab-agentic-toolkit, last changed 31 Jul 2026. It can run shell commands and name web addresses.

From the author
Use this skill when conditioning, loading, preparing, or labeling signal data for analysis or ML training. Covers: cleaning a single signal (fill gaps, remove drift, deoutlier, denoise, resample/align a time base) BEFORE analysis; building a `signalDatastore` pipeline; creating a `labeledSignalSet` for Signal Labeler; deriving labels (filename, folder, in-file, ROI, time-frequency ROI); stratified train/val/test splits; framing long signals; parallel processing; and shaping datastore output for `trainnet`. Triggers include "clean up this signal", "remove drift / detrend", "fill gaps", "remove spikes / outliers", "denoise", "resample to a uniform rate", "align channels", "labels from filenames", "stratified split", "prepare for Signal Labeler", and function names like `fillgaps`, `fillmissing`, `detrend`, `filloutliers`, `smoothdata`, `resample`, `synchronize`, `signalDatastore`, `labeledSignalSet`, `filenames2labels`, `folders2labels`, `splitlabels`, `framesig`, `framelbl`, `createDatastores`.

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
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Licence
1.2k
Repo stars
Publisher

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.

  • 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

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 that SKILL.md doesn't link: references/fn-countlabels.md, references/fn-fillgaps.md, references/fn-fillmissing.md, references/fn-filloutliers.md, references/fn-framelbl.md and 14 more. Anthropic suggests linking every reference file directly from SKILL.md. B4

      Fix: Link each one from SKILL.md and say when to read it.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/fn-detrend.md (102 lines), references/fn-filenames2labels.md (103 lines), references/fn-filloutliers.md (109 lines), references/fn-folders2labels.md (102 lines), references/fn-framelbl.md (149 lines) and 21 more. 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 that SKILL.md doesn't link: references/fn-countlabels.md, references/fn-fillgaps.md, references/fn-fillmissing.md, references/fn-filloutliers.md, references/fn-framelbl.md and 14 more. Anthropic suggests linking every reference file directly from SKILL.md. B4

      Fix: Link each one from SKILL.md and say when to read it.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/fn-detrend.md (102 lines), references/fn-filenames2labels.md (103 lines), references/fn-filloutliers.md (109 lines), references/fn-folders2labels.md (102 lines), references/fn-framelbl.md (149 lines) and 21 more. 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 1009 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 that SKILL.md doesn't link: references/fn-countlabels.md, references/fn-fillgaps.md, references/fn-fillmissing.md, references/fn-filloutliers.md, references/fn-framelbl.md and 14 more. Anthropic suggests linking every reference file directly from SKILL.md. B4

      Fix: Link each one from SKILL.md and say when to read it.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/fn-detrend.md (102 lines), references/fn-filenames2labels.md (103 lines), references/fn-filloutliers.md (109 lines), references/fn-folders2labels.md (102 lines), references/fn-framelbl.md (149 lines) and 21 more. 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

39 files

PathSize
SKILL.md (opens in a new tab)9.5 KB
manifest.yaml (opens in a new tab)650 B
references/fn-countlabels.md (opens in a new tab)2.1 KB
references/fn-detrend.md (opens in a new tab)4.6 KB
references/fn-filenames2labels.md (opens in a new tab)4.8 KB
references/fn-fillgaps.md (opens in a new tab)3.3 KB
references/fn-fillmissing.md (opens in a new tab)4.2 KB
references/fn-filloutliers.md (opens in a new tab)5 KB
references/fn-folders2labels.md (opens in a new tab)3.4 KB
references/fn-framelbl.md (opens in a new tab)7.1 KB
references/fn-framesig.md (opens in a new tab)4.1 KB
references/fn-hampel.md (opens in a new tab)3.3 KB
references/fn-labeledsignalset.md (opens in a new tab)9.1 KB
references/fn-labelspectrogramoptions.md (opens in a new tab)4.6 KB
references/fn-medfilt1.md (opens in a new tab)3.3 KB
references/fn-partition.md (opens in a new tab)4.6 KB
references/fn-resample.md (opens in a new tab)4.6 KB
references/fn-retime.md (opens in a new tab)4.7 KB
references/fn-sgolayfilt.md (opens in a new tab)3.5 KB
references/fn-signaldatastore.md (opens in a new tab)11.9 KB
Show 19 more

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