apply_stdin_pipe

Read piped stdin and merge it into the parsed CLI arguments.

When stdin is not a TTY (i.e. input is piped), reads all available text and applies it to the argument namespace. If stdin is a TTY or the piped input is empty/whitespace-only, the function returns without modifying args. Leading and trailing whitespace is stripped from piped input.

• If non_interactive_message is already set (-n), prepends the piped text to it (the CLI still runs non-interactively):

cat context.txt | deepagents -n "summarize this"
# non_interactive_message = "{contents of context.txt}\n\nsummarize this"

• If initial_prompt is already set (-m, but not -n), prepends the piped text to it (the CLI still runs interactively):

cat error.log | deepagents -m "explain this"
# initial_prompt = "{contents of error.log}\n\nexplain this"

• Otherwise, sets non_interactive_message to the piped text, causing the CLI to run non-interactively with it as the prompt:

echo "fix the typo in README.md" | deepagents
# non_interactive_message = "fix the typo in README.md"