Shell Commands
This example shows how to chain shell commands, passing output from one to the next using substitution placeholders.
# Stage 1: Generate
context={"command": "echo 'hello world'"}
# Stage 2: Process (uses output from Stage 1)
context={"command": "echo '{stdout}' | tr 'a-z' 'A-Z'"}
See examples/shell-example.py for the full runnable code.