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+# Inline Bash
+
+Inline shell expansion for Pi prompts.
+
+This is the upstream `inline-bash.ts` example installed as a local extension in
+your dotfiles-backed Pi tree. It expands `!{...}` before the prompt is sent to
+the model.
+
+## What It Does
+
+- `!{command}` runs a shell command locally
+- the command output replaces the inline expression in your prompt
+- regular whole-line `!command` behavior stays unchanged
+
+## Usage Flows
+
+### Flow 1: Inline one value into a prompt
+
+```text
+What files are in !{pwd}?
+```
+
+Pi sends the expanded prompt after `pwd` runs locally.
+
+### Flow 2: Inline git state
+
+```text
+Summarize the current branch !{git branch --show-current} and these changes: !{git status --short}
+```
+
+### Flow 3: Inline system context
+
+```text
+I am on kernel !{uname -r} and hostname !{hostname}. Explain whether that matters for this bug.
+```
+
+## Notes And Limits
+
+- Commands run on your local machine, not on the model provider.
+- Expansion happens before the prompt is sent.
+- Each inline command has a 30 second timeout.
+- If a command fails, the prompt gets an inline error marker.
+- This is convenient, but it is still shell execution. Treat prompt text
+  accordingly.