@saifymatteo/pi-codeblock-borders

Decorated code fences

Packages

Package details

extension

Install @saifymatteo/pi-codeblock-borders from npm and Pi will load the resources declared by the package manifest.

npm repohome report
$ pi install npm:@saifymatteo/pi-codeblock-borders
Package
@saifymatteo/pi-codeblock-borders
Version
0.1.4
Published
Nov 7, 2026
Downloads
748/mo · 748/wk
Author
saifymatteo
License
AGPL-3.0-only
Types
extension
Size
48.6 KB
Dependencies
0 dependencies · 2 peers
Pi manifest JSON
{
  "image": "https://raw.githubusercontent.com/saifymatteo/pi-extensions/main/packages/pi-codeblock-borders/screenshot.png",
  "extensions": [
    "./src/index.ts"
  ]
}

Security note

Pi packages can execute code and influence agent behavior. Review the source before installing third-party packages.

README

pi-codeblock-borders

The same reply rendered by stock pi and with codeblock borders

The same reply, rendered by stock pi and then with this extension. Code fences become full-width rules, and title=, :line-numbers and {2} line focus are rendered.

Render markdown code fences as full-width rules spanning the content area, and upgrade the fence info string with language decoration, titles, and line numbers that Pi's built-in renderer does not support.

Running locally

From the monorepo root:

pi -e ./packages/pi-codeblock-borders

Warning: this extension uses your existing Pi resources and settings unless you load it in an isolated home (see the root README). Do not load two copies of the same extension (for example an older standalone file alongside this package): commands and hooks can duplicate. The package never installs or relocates personal settings.

Behavior

  • Replaces the literal ``` fence markers with horizontal rules sized to the terminal width.
  • Decorates the opening info string: lang, lang separators, optional title, and :line-numbers.
  • Patches the theme's codeBlockBorder/highlightCode callbacks for the session and restores the originals on session_shutdown.
  • Applies to every markdown code block; there is no per-block opt-out.

Settings and storage

None. The extension holds no configuration file and reads no user data beyond the rendered token stream.

Compatibility

Node.js >=24 for development checks; run extensions through Pi's TypeScript loader. Host imports are wildcard peers, not bundled runtime copies. The patch reaches into Pi-TUI Markdown internals, so host-version changes can break it; verify against your target host before relying on it. Overlapping UI patches (for example from pi-atelier) need integration testing; load one renderer patch at a time in an isolated session first.

See NOTICE.md for provenance. Tests patch a stubbed renderer and never contact services or write to user-home resources.