Fetches latest version numbers for popular GitHub Actions from actions-latest, useful for keeping workflows up to date.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@actions-latest-mcp what are the latest versions of common GitHub Actions?"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
A Model Context Protocol (MCP) server that fetches the latest GitHub Actions versions from actions-latest.
This MCP server provides a simple tool to fetch the contents of https://simonw.github.io/actions-latest/versions.txt, which contains the latest version numbers for popular GitHub Actions. This is useful for keeping your workflows up to date.
Related MCP server: GitHub Actions MCP
This package is published to PyPI and can be used directly without manual installation.
Add to your MCP client configuration (e.g., Claude Desktop's claude_desktop_config.json):
{
"mcpServers": {
"actions-latest": {
"command": "uvx",
"args": ["actions-latest-mcp"]
}
}
}The uvx command will automatically download and run the package from PyPI when needed.
If you prefer to install the package manually:
# Install with uv
uv pip install actions-latest-mcp
# Or with pip
pip install actions-latest-mcpThen configure your MCP client:
{
"mcpServers": {
"actions-latest": {
"command": "actions-latest-mcp"
}
}
}latest_github_actions_versions: Returns a list of latest versions of all actions from the official GitHub Actions organization. This is useful for keeping your workflows up to date with the latest action versions.
This server fetches data from simonw/actions-latest, a project that tracks the latest versions of popular GitHub Actions and makes them available in an easy-to-consume format.
The repository includes a GitHub Actions workflow (.github/workflows/publish.yml) that automatically publishes to PyPI when a new release is created.
Returns a list of latest versions of all actions from the official GitHub Actions organization. This is useful for keeping your workflows up to date with the latest action versions.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description is transparent about returning latest versions from the official organization, but lacks details like whether it includes pre-releases, rate limits, or authentication requirements. Without annotations, more depth would be helpful.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences with no wasted words, front-loaded with the main action and followed by a use case. Very concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has no parameters, no output schema, and no siblings, the description is reasonably complete for a simple list-retrieval tool. However, it could mention data freshness or source.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has no parameters, so the description does not need to add param semantics. The schema coverage is 100%, and the description is sufficient for an input-less tool.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool returns a list of latest versions of all actions from the official GitHub Actions organization, with a specific use case for keeping workflows up to date.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies when to use it (keeping workflows up to date) but does not explicitly mention when not to use it or alternatives. Given no sibling tools, this is adequate but not exhaustive.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
v0.1.1latest_github_actions_versionsScored across 1 tool
Only one tool exists, so there is no possibility of confusion with other tools. The tool's purpose is perfectly clear.
With a single tool, naming consistency is perfect. The name is descriptive and follows a clear pattern.
A single tool feels thin for a server, even if the scope is narrow. It is borderline but reasonable given the focused functionality.
The tool fully delivers on its promise to return the latest versions of all GitHub Actions. However, there is no support for filtering or querying specific actions, which could be a minor gap.
Latest versions, LTS windows, and EOL dates for 300+ products. Fresh ground truth for stale models.
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