pi-copy-code

A pi package for copying fenced code blocks from assistant messages without terminal selection padding.

pi-copy-code adds one command and one shortcut:

• /copy-code
• ctrl+alt+c

It reads the latest assistant message, extracts fenced code blocks, and copies the raw code text to your clipboard. If there is more than one block, it opens a small two-pane picker with a live preview.

Features

• Copy raw fenced code instead of rendered terminal cells.
• Preserve whitespace-sensitive YAML, shell, Python, and heredoc indentation.
• Copy one block immediately when there is only one block.
• Choose between multiple blocks with a preview picker.
• Copy all blocks at once from the picker.
• Edit a selected block in your external editor before copying.
• Clipboard fallback order:
  • native clipboard command when available (pbcopy, wl-copy, xclip, xsel, clip.exe)
  • OSC 52 terminal clipboard sequence when native clipboard commands are unavailable

Install

From npm:

pi install npm:@penumbral-labs/pi-copy-code

From GitHub:

pi install git:github.com/penumbral-labs/pi-copy-code

Or from a local checkout:

cd /path/to/pi-copy-code
pi install "$(pwd)"

Then reload pi:

/reload

For a one-off run without installing:

pi -e npm:@penumbral-labs/pi-copy-code

or, from GitHub:

pi -e git:github.com/penumbral-labs/pi-copy-code

or, from a local checkout:

pi -e "$(pwd)"

Usage

Copy code from the latest assistant message:

/copy-code

or press:

ctrl+alt+c

Edit before copying:

/copy-code edit

When multiple blocks are available, the picker opens:

• ↑ / ↓ or j / k — move selection
• enter — run the default action
  • /copy-code: copy
  • /copy-code edit: edit, then copy
• e — edit selected block, then copy
• esc or q — cancel

The first picker item is All code blocks, which copies all blocks separated by blank lines.

External editor setup

Edit mode opens your external editor directly using $VISUAL, then $EDITOR.

For NeoVim:

export VISUAL=nvim
# or
export EDITOR=nvim

If neither variable is set, /copy-code edit shows a warning and cancels.

What counts as a code block?

pi-copy-code extracts fenced markdown blocks from the latest assistant message:

```bash
echo hello
```

~~~python
print("hello")
~~~

Indented markdown code blocks are not currently extracted.

Package shape

The package uses pi's package manifest in package.json:

{
  "keywords": ["pi-package"],
  "pi": {
    "extensions": ["./extensions/copy-code/index.ts"]
  }
}

Core pi packages are peer dependencies, per pi package guidance.

Development

Run tests:

npm test

Check publish contents:

npm pack --dry-run

Test fixture

Ask pi to emit multiple fenced blocks, then run /copy-code:

apiVersion: v1
kind: ConfigMap
metadata:
  name: test
data:
  script.sh: |
    if [ -n "$FOO" ]; then
      echo "$FOO"
    fi

from dataclasses import dataclass

@dataclass
class Config:
    host: str
    port: int = 8080

    @property
    def url(self) -> str:
        return f"http://{self.host}:{self.port}"