Agent skill

Mz Parallel Workload

by MaterializeInc in MaterializeInc/materialize

Extend parallel-workload stress framework: random SQL concurrently to catch panics + unexpected errors (not perf — see mz-benchmark).

Custom licenceAuto-check passedDatabases

Install Mz Parallel Workload

skills CLI
$ npx skills add MaterializeInc/materialize --skill mz-parallel-workload -a claude-code

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

GitHub CLI
$ gh skill install MaterializeInc/materialize mz-parallel-workload --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/MaterializeInc/materialize.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/mz-parallel-workload .claude/skills/mz-parallel-workload && 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
mz-parallel-workload
GitHub stars
6.4k
Token cost
~1.9k tokens
SKILL.md length
514 words
Files
1
Skills in repo
15
Repo updated
First seen
Licence
Custom licence

At a glance

Extend parallel-workload stress framework: random SQL concurrently to catch panics + unexpected errors (not perf — see mz-benchmark).

  • Works in 3 steps: Define the Action Class → Override errors_to_ignore() If Needed → Register in an Action List
  • Tasks that involve SQL
  • SKILL.md covers When to Use This Framework, How It Works, Adding a New Action and Common Patterns, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Mz Parallel Workload is an agent skill from MaterializeInc/materialize. Extend parallel-workload stress framework: random SQL concurrently to catch panics + unexpected errors (not perf — see mz-benchmark). Trigger: "parallel workload", "parallel-workload", "action.py" re parallel workload, or testing panics/unexpected errors under concurrency. Also "add this to parallel workload" or bug that panics under concurrent DDL/DML.

Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Databases, covering SQL. It works with SQL and PostgreSQL. The repository describes itself as: The live data layer for apps and AI agents. Create up-to-the-second views into your business, just using SQL.

When your agent uses it

  • Tasks that involve SQL

Example prompts

  • “parallel workload”
  • “parallel-workload”
  • “action.py”
  • “/mz-parallel-workload”

Requirements

  • Python 3

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Define the Action Class
  2. Override errors_to_ignore() If Needed
  3. Register in an Action List

What it can do on your machine

Read from SKILL.md and the folder at commit 80f0437. 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 python and bash).

    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

Mz Parallel Workload loads about 1.9k tokens when it runs. Until then it costs about 94 tokens; SKILL.md has 514 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~94
When it runs · the whole SKILL.md, loaded when a task matches
~1.9k

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 514 words (~1,892 tokens).

“The parallel-workload framework stress-tests Materialize by running random SQL actions concurrently across multiple threads. It catches panics and unexpected query errors - it does not verify result correctness.”

— opening of SKILL.md by MaterializeInc, Custom licence
name
mz-parallel-workload

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/mz-parallel-workload of MaterializeInc/materialize.

Open the folder on GitHubat commit 80f0437

Compare with similar skills

Mz Parallel Workload 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.

Mz Parallel Workload compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Mz Parallel Workload this skillMaterializeInc/materialize6.4k—~1.9kAutomated safety check: PassCustom licence
SQL Database Support for pRESTprest/prest4.6k—~1.6kAutomated safety check: PassMIT
Chdb SQLvemetric/vemetric3941 repos~1.2kAutomated safety check: PassApache-2.0
Schema Explorationtimescale/pg-aiguide1.9k—~1.1kAutomated safety check: PassApache-2.0
Dingtalk AitableDingTalk-Real-AI/dingtalk-workspace-cli3.2k—~5.4kAutomated safety check: PassApache-2.0
Sql2erystemsrx/sql_to_ER188—~1.1kAutomated safety check: PassAGPL-3.0

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Works with

Categories

Questions about Mz Parallel Workload

What does Mz Parallel Workload do?

Extend parallel-workload stress framework: random SQL concurrently to catch panics + unexpected errors (not perf — see mz-benchmark). Mz Parallel Workload is an agent skill from MaterializeInc/materialize. Extend parallel-workload stress framework: random SQL concurrently to catch panics + unexpected errors (not perf — see mz-benchmark).

When should I use Mz Parallel Workload?

Mz Parallel Workload fits situations like: tasks that involve SQL.

How do I install Mz Parallel Workload in Claude Code?

Run `npx skills add MaterializeInc/materialize --skill mz-parallel-workload -a claude-code`. Or copy the skill folder (.agents/skills/mz-parallel-workload in MaterializeInc/materialize) into .claude/skills/mz-parallel-workload in your project. Claude Code loads it when a task matches its description.

How do I install Mz Parallel Workload in Codex?

Run `npx skills add MaterializeInc/materialize --skill mz-parallel-workload -a codex`. Or copy the skill folder (.agents/skills/mz-parallel-workload in MaterializeInc/materialize) into .agents/skills/mz-parallel-workload in your project. Codex loads it when a task matches its description.

Can I use Mz Parallel Workload 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 MaterializeInc/materialize --skill mz-parallel-workload -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mz-parallel-workload, .gemini/skills/mz-parallel-workload, .github/skills/mz-parallel-workload and .opencode/skills/mz-parallel-workload in your project.

What does Mz Parallel Workload need to run?

SKILL.md names no scripts, command-line tools or credentials: Mz Parallel Workload is instructions for the agent only. Our summary lists: Python 3.

Does Mz Parallel Workload 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 Mz Parallel Workload 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 Mz Parallel Workload use?

Mz Parallel Workload 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 Mz Parallel Workload use?

About 1.9k tokens (SKILL.md is roughly 7.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Mz Parallel Workload?

Skills that share tags, products or a category with Mz Parallel Workload: SQL Database Support for pREST (prest/prest, 4.6k stars), Chdb SQL (vemetric/vemetric, 394 stars), Schema Exploration (timescale/pg-aiguide, 1.9k stars) and Dingtalk Aitable (DingTalk-Real-AI/dingtalk-workspace-cli, 3.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Mz Parallel Workload?

MaterializeInc (a GitHub organization) maintains it in MaterializeInc/materialize, which has 6,377 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on October 7, 2026.

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