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Agent skill

Matlab Diagnose Parfor

by matlab in matlab/matlab-agentic-toolkit

Diagnose and fix parfor errors in MATLAB. An agent skill from matlab/matlab-agentic-toolkit.

Custom licenceAuto-check passed

Install Matlab Diagnose Parfor

skills CLI
$ npx skills add matlab/matlab-agentic-toolkit --skill matlab-diagnose-parfor -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install matlab/matlab-agentic-toolkit matlab-diagnose-parfor --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/matlab/matlab-agentic-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills-catalog/parallel-computing/matlab-diagnose-parfor .claude/skills/matlab-diagnose-parfor && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
matlab-diagnose-parfor
GitHub stars
1.1k
Token cost
~3.4k tokens
SKILL.md length
1,416 words
Files
3 (incl. references)
Skills in repo
151
Repo updated
First seen
Licence
Custom licence

At a glance

Diagnose and fix parfor errors in MATLAB. An agent skill from matlab/matlab-agentic-toolkit.

  • Works in 4 steps: Run the code analyser on the file… → Identify the error type from the message… → Apply the matching fix pattern (see… → …
  • Has a parfor problem: parfor loop has an error
  • SKILL.md covers When to Use, When NOT to Use, Workflow and Error Messages and Root Causes, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Matlab Diagnose Parfor is an agent skill from matlab/matlab-agentic-toolkit. Diagnose and fix parfor errors in MATLAB. Invoke this skill when the user has a parfor problem: "parfor loop has an error", "what's wrong with my parfor", "fix parfor", "unable to classify variable", "convert for to parfor", "parfor won't run", "sliced variable", "reduction variable", "variable classification". Also invoke when you read a .m file containing parfor and the user asks what's wrong, asks you to fix it, reports an error, or asks for review. Do NOT invoke for parfor performance questions or code that…

Its SKILL.md is about 3.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `manifest.yaml` and `references/parfor-analyser-messages.md`).

It works with Model Context Protocol. The repository describes itself as: The MATLAB Agentic Toolkit brings proven MATLAB capabilities to AI agents, making engineering and scientific workflows agent-ready.

When your agent uses it

  • Has a parfor problem: parfor loop has an error
  • Whats wrong with my parfor
  • Unable to classify variable
  • Convert for to parfor

Example prompts

  • “parfor loop has an error”
  • “s wrong with my parfor”
  • “fix parfor”
  • “/matlab-diagnose-parfor”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Run the code analyser on the file containing the parfor loop using
  2. Identify the error type from the message (see table below).
  3. Apply the matching fix pattern (see Patterns section).
  4. Verify by re-running mcpmatlabcheck_matlab_code on the fixed

What it can do on your machine

Read from SKILL.md and the folder at commit 69e71df. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are matlab).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Matlab Diagnose Parfor loads about 3.4k tokens when it runs, and up to ~5.6k if it reads all its reference files. Until then it costs about 177 tokens; SKILL.md has 1,416 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~177
When it runs · the whole SKILL.md, loaded when a task matches
~3.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~5.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,416 words (~3,425 tokens).

“Do NOT reason about parfor classification rules from memory. LLM training data contains incomplete and often incorrect explanations of these rules. MATLAB's code analyser (checkcode / codeIssues / mcpmatlabcheck_matlab_code) is the only reliable authority — it implements the exact same…”

— opening of SKILL.md by matlab, Custom licence
name
matlab-diagnose-parfor
license
https://www.mathworks.com/content/dam/mathworks/license/pmrl/license.md
metadata.author
MathWorks
metadata.version
1.0

Read the full SKILL.md on GitHub

Files

SKILL.md and 2 other files (references) in skills-catalog/parallel-computing/matlab-diagnose-parfor of matlab/matlab-agentic-toolkit.

  • SKILL.md
  • manifest.yaml
  • references/parfor-analyser-messages.md

Open the folder on GitHubat commit 69e71df

Compare with similar skills

Matlab Diagnose Parfor next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Matlab Diagnose Parfor compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Matlab Diagnose Parfor this skillmatlab/matlab-agentic-toolkit1.1k—~3.4kAutomated safety check: PassCustom licence
MCP Server Builderanthropics/skills180k63 repos~2.3kAutomated safety check: PassApache-2.0
MCP Server BuildershareAI-lab/learn-claude-code78k4 repos~1.2kAutomated safety check: PassMIT
MCP Integration for Pluginsanthropics/claude-plugins-official38k11 repos~3.1kAutomated safety check: PassApache-2.0
Figma use_figma Plugin API Ruleswarpdotdev/warp65k4 repos~4.4kAutomated safety check: PassAGPL-3.0
Stitch to Remotion Walkthrough Videosgoogle-labs-code/stitch-skills8.5k6 repos~3.2kAutomated safety check: NotesApache-2.0

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Works with

Questions about Matlab Diagnose Parfor

What does Matlab Diagnose Parfor do?

Diagnose and fix parfor errors in MATLAB. An agent skill from matlab/matlab-agentic-toolkit. Matlab Diagnose Parfor is an agent skill from matlab/matlab-agentic-toolkit. Diagnose and fix parfor errors in MATLAB.

When should I use Matlab Diagnose Parfor?

Matlab Diagnose Parfor fits situations like: has a parfor problem: parfor loop has an error; whats wrong with my parfor; unable to classify variable; convert for to parfor.

How do I install Matlab Diagnose Parfor in Claude Code?

Run `npx skills add matlab/matlab-agentic-toolkit --skill matlab-diagnose-parfor -a claude-code`. Or copy the skill folder (skills-catalog/parallel-computing/matlab-diagnose-parfor in matlab/matlab-agentic-toolkit) into .claude/skills/matlab-diagnose-parfor in your project. Claude Code loads it when a task matches its description.

How do I install Matlab Diagnose Parfor in Codex?

Run `npx skills add matlab/matlab-agentic-toolkit --skill matlab-diagnose-parfor -a codex`. Or copy the skill folder (skills-catalog/parallel-computing/matlab-diagnose-parfor in matlab/matlab-agentic-toolkit) into .agents/skills/matlab-diagnose-parfor in your project. Codex loads it when a task matches its description.

Can I use Matlab Diagnose Parfor in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add matlab/matlab-agentic-toolkit --skill matlab-diagnose-parfor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/matlab-diagnose-parfor, .gemini/skills/matlab-diagnose-parfor, .github/skills/matlab-diagnose-parfor and .opencode/skills/matlab-diagnose-parfor in your project.

What does Matlab Diagnose Parfor need to run?

SKILL.md names no scripts, command-line tools or credentials: Matlab Diagnose Parfor is instructions for the agent only.

Does Matlab Diagnose Parfor access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Matlab Diagnose Parfor safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Matlab Diagnose Parfor use?

Matlab Diagnose Parfor has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Matlab Diagnose Parfor use?

About 3.4k tokens (SKILL.md is roughly 14k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.2k tokens, read only when the agent opens those files.

What are the alternatives to Matlab Diagnose Parfor?

Skills that share tags, products or a category with Matlab Diagnose Parfor: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MCP Integration for Plugins (anthropics/claude-plugins-official, 38k stars) and Figma use_figma Plugin API Rules (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Matlab Diagnose Parfor?

matlab (a GitHub organization) maintains it in matlab/matlab-agentic-toolkit, which has 1,147 GitHub stars. The repository holds 151 skills in this directory. The repository was last updated on October 8, 2026.

Source: matlab/matlab-agentic-toolkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.