Question

A build job runs a test suite and you want the workflow run's summary page to display a formatted Markdown table of pass/fail counts after the tests complete. The values are only known at runtime inside a shell step. Which approach correctly writes this table to the run summary?

Accepted Answer

Append the Markdown to the file referenced by $GITHUB_STEP_SUMMARY (e.g., echo "| Passed | Failed |" >> "$GITHUB_STEP_SUMMARY").

Answer

Set an output with echo "summary=..." >> "$GITHUB_OUTPUT" and reference it in the job's summary: key.

Answer

Use the ::set-summary:: workflow command to send the Markdown text to the run page.

Answer

Write the Markdown to $GITHUB_ENV so the summary environment variable is rendered on the run page.