GitHub Actions Deprecation Lint: the 2026 runner and action EOL dates

Runs the same checker as the npm package @readystack/actions-deprecation-lint-2026 on a Node.js runtime that pip installs for you (nodejs-wheel-binaries) - no system Node.js needed. Your files are checked locally.

Node 20 is removed from GitHub-hosted runners on 2026-09-23 and ubuntu-22.04 deprecation opens 2026-09-17. This checks a workflow file against 25 dated GitHub shutdowns and names the date each line stops running.

Install

actions-deprecation-lint-2026 file

Node 18+. The same 25 rules as the VS Code extension, from a terminal or CI.

Free

• Audit the workflow file you have open against all 25 dated rules - every line, every shutdown date, no key asked.
• --rules lists every rule

With a licence ($29 once)

• Scan every workflow in the repository at once, export the report, fail CI on a finding, re-check on save, and add your own rules.

@readystack/actions-deprecation-lint-2026 --dir ./templates --report html --out report.html

A freelance DevOps engineer bills about $100/hour in 2026 (goLance 2026 rate guide, range $100-165 for experienced contractors); one blocked release morning costs more than this licence.

Use from an AI agent (MCP)

Claude Code · Cursor · Windsurf · any MCP client - add to your MCP config:

{ "mcpServers": { "actions-deprecation-lint-2026": { "command": "npx", "args": ["-y", "@readystack/actions-deprecation-lint-2026", "--mcp"] } } }

Tools: check_text and check_file (free) · check_dir (licence). The agent gets every finding with the line number.

Use in CI

- name: GitHub Actions Deprecation Lint: the 2026 runner and action EOL dates
  run: npx -y @readystack/actions-deprecation-lint-2026 --dir . --ci

(container: docker run --rm -v "$PWD:/work" getreadystack/actions-deprecation-lint-2026 --dir /work --ci)

The folder sweep, reports and CI mode need one licence — one payment, no subscription. Set READYSTACK_LICENSE=<key> or run --license <key> once.

Get a licence

Install (PyPI)

pip install readystack-actions-deprecation-lint-2026
actions-deprecation-lint-2026 --help