Log tools playground

Try a custom log processor with synthetic live output and repeatable action reports. The default colorizer needs only standard shell tools. No network ports, credentials or external requests are involved.

From the repository root:

make dev
./bin/kranz-dev -C examples/log-tools

Select api and press s. Its initial burst fills the panel for immediate scrolling, then a new record arrives every second. Ctrl+G switches between processed and original output. Try / with WARN|ERROR, Enter and Escape; Escape again clears the filter. w toggles wrapping, i capture timestamps, and f pauses or resumes following.

Restart api with r and confirm to create another run. Use x, [ / ], Shift+X and Shift+3 to compare individual, combined and pinned histories. Expand api, select report and press s repeatedly for finite action runs.

Try tailspin

Install tailspin separately, then stop the first example runtime before changing profiles:

brew install tailspin
./bin/kranz-dev -C examples/log-tools --override tailspin.yaml

Start api. Its selected history passes through tspin --print inside the log panel. Use Ctrl+G to compare. Replace command in the override to try another stdin/stdout tool or pipeline; disable its pager and enable flushing for live output. A missing or failed command falls back to original logs.

Try less

After stopping the previous example runtime:

./bin/kranz-dev -C examples/log-tools --override viewer.yaml

Start api, choose runs and optionally apply a regex filter, then press Ctrl+G. The viewer receives a frozen snapshot. Press q in less to return to the same Kranz context.

Cleanup

Press q in Kranz and choose to stop the example runtime. If you detached:

./bin/kranz-dev -C examples/log-tools down

Full source and profiles: examples/log-tools.