Viewing job condition expression logs

When a job's if condition is evaluated, GitHub Actions logs the expression evaluation to help you understand the result. This is useful for debugging both why a job was skipped and why a job ran when you expected it to be skipped.

Accessing expression logs

1. Navigate to the workflow run summary.
2. Click on the job.
3. Click .
4. Select Download log archive.
5. Extract the ZIP file and open the JOB-NAME/system.txt file.

Understanding the log output

The system log shows the expression evaluation:

Evaluating: (success() && ((github.repository == 'octo-org/octo-repo-prod')))
Expanded: (true && (('my-username/octo-repo-prod' == 'octo-org/octo-repo-prod')))
Result: false

Line	Description
Evaluating	The original if expression from your workflow file.
Expanded	The expression with context values substituted. This shows you exactly what values were used at runtime.
Result	The final evaluation result (true or false).

In this example, the expanded line reveals that github.repository was 'my-username/octo-repo-prod' (not 'octo-org/octo-repo-prod'), which caused the condition to evaluate to false.