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YAML Workflow MCP server

by orieg·io.github.orieg/yaml-workflow·v0.9.6
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Expose declarative YAML-defined workflows as MCP tools over stdio

A92/100grade A
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Safety scan
A92/100

full report

Adoption
Growing

3 stars68 downloads/wk

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YAML Workflow tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.9 · 2026-09-23 · same rubric, same numbers if you re-run it

no findings
  • Code scan35 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 2 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 92/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

What the publisher says

From the YAML Workflow repository's README, as published. We do not edit it. Read it on GitHub

YAML Workflow

<!-- mcp-name: io.github.orieg/yaml-workflow -->

A lightweight workflow engine for CI/CD pipelines, data processing, and DevOps automation. Define reproducible, version-controlled workflows in YAML — run them locally, in CI, or on any machine with Python installed.

Why yaml-workflow?

Most workflow tools require servers, databases, and complex infrastructure. yaml-workflow takes a GitOps approach — workflows are plain YAML files, version-controlled alongside your code:

Choose yaml-workflow when you need:

  • Simple task automation without infrastructure overhead
  • Reproducible pipelines defined in version-controlled YAML
  • Batch processing with parallel execution
  • State persistence and workflow resume after failures
  • A lightweight alternative to shell scripts with better error handling
  • GitOps-friendly pipelines that live in your repo alongside the code
  • A single tool that runs the same pipeline locally and in CI

Features

  • YAML-driven workflow definition with Jinja2 templating
  • Multiple task types: shell, Python, file, template, HTTP, batch
  • Workflow composition via imports — reuse steps across workflows
  • Plugin system via entry points — pip install yaml-workflow-myplugin
  • Watch mode — --watch to re-run on file changes
  • Dry-run mode to preview without executing
  • Workflow visualization (ASCII branching DAG and Mermaid)
  • Parallel execution with configurable worker pools
  • State persistence and resume capability
  • Retry mechanisms with configurable strategies
  • Namespaced variables (args, env, steps, batch)
  • Flow control with custom step sequences and conditions

Use Cases

  • CI/CD pipelines — multi-step build, test, deploy workflows in YAML
  • Data processing — batch ETL pipelines with retry and resume on failure
  • DevOps automation — infrastructure tasks with secrets management and notifications
  • AI/LLM pipelines — orchestrate API calls with auth, retry, and batch processing
  • Local automation — replace shell scripts with reproducible, parameterized workflows

Quick Start

# Install (isolated CLI — recommended)
pipx install yaml-workflow            # Core CLI
pipx install 'yaml-workflow[all]'     # + web dashboard + MCP server

# Or with pip
pip install yaml-workflow

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Install directly

claude mcp add yaml-workflow -- uvx yaml-workflow
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YAML Workflow: common questions

Is YAML Workflow MCP server safe?
Yes, by our scan: it is graded A (92/100). Read the YAML Workflow safety report
How do I install YAML Workflow?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does YAML Workflow need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is YAML Workflow maintained?
The last commit was 2 days ago (2026-09-21). The latest release is v0.9.6.

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