Oh My Pi Chat

A VS Code extension that gives Oh My Pi (omp) a Copilot / Cursor-style chat sidebar.

It launches a local omp --mode rpc session and streams replies, thinking, and tool activity into a modern webview chat UI.

Features

• Multi-tab chats (each tab is its own omp session)

• Agent-generated session titles on tabs (tiny/smol title model; disable with ompChat.autoTitle)

• Right-click a chat tab to rename / view / export / copy the full session as plain text

• Restores all open omp chat tabs/sessions after VS Code restarts or force-quits

• History button lists all past omp sessions for the workspace and can resume any of them

• Model picker button (lists omp models --json, restarts session on change)

• Per-session context usage meter from omp get_state.contextUsage

• Activity-bar Chat sidebar (Copilot-like)

• Streaming assistant responses over omp RPC

• Collapsible thinking blocks

• Live tool call cards

• Attach current file / selection from the editor context menu

• New chat, stop generation, restart session

• Settings for model, thinking level, approval mode, auto-approve

Prerequisites

1. Install Oh My Pi so omp is on your PATH
2. Configure provider auth the same way you do for the terminal CLI
3. VS Code 1.90+

Develop

npm install
npm run build

Then press F5 (Run Extension) to open an Extension Development Host.

Use

1. Open the OMP icon in the Activity Bar
2. Type a prompt and press Enter
3. Optional:
   • Right-click in the editor → OMP: Attach Current File
   • Select code → OMP: Send Selection to Chat
4. Use the view title buttons for New Chat, Stop, or Restart Session

Keyboard shortcuts

Action	macOS	Windows/Linux
Open chat	Cmd+Shift+;	Ctrl+Shift+;
Send selection	Cmd+Shift+'	Ctrl+Shift+'

Settings

Setting	Meaning
ompChat.ompPath	Path to omp (default: omp)
ompChat.model	Model override (fuzzy match)
ompChat.thinking	Thinking level
ompChat.approvalMode	always-ask / write / yolo
ompChat.autoApprove	Pass --auto-approve
ompChat.continueLastSession	Restore all open omp chat tabs/sessions on start (default on; survives VS Code kills)
ompChat.autoTitle	Let omp generate a short session title after the first message (default on; restart chats when toggling)
ompChat.extraArgs	Extra CLI args
ompChat.showThinking	Show/hide thinking blocks in UI
ompChat.logFileTouches	Log edit/write/delete touched paths to OMP File Touches output channel

Quick error log: Command Palette → OMP: Show Error Log (also in the chat ⋯ menu). Entries persist across reloads and auto-clear after 7 days.

Architecture

VS Code extension host
  └─ ChatViewProvider (webview sidebar)
       └─ SessionManager
            └─ OmpRpcClient
                 └─ spawn: omp --mode rpc --cwd <workspace>
                      stdin/stdout: newline-delimited JSON

Prompt command:

{ "type": "prompt", "message": "..." }

Stop command:

{ "type": "abort" }

Package

npm run package

This produces a .vsix you can install with:

code --install-extension oh-my-pi-chat-0.1.0.vsix

Notes / roadmap

• Interactive omp questions (extension_ui_request: confirm / select / input / editor) render above the composer
• Edit/write/delete file touches are logged to the OMP File Touches output channel (OMP: Show File Touch Log)
• Tool auto-approval still uses approvalMode / autoApprove (separate from question cards)
• Multi-workspace root picker and inline apply/diff are natural next steps
• ACP (omp acp) is an alternative transport; this extension uses native --mode rpc for richer streaming events

Attachments

• Click 📎 / Files / Folder in the composer
• Type @ in the composer to insert an inline file/folder mention
• Paste an image from the clipboard into the input (shows as an inline chip)
• Drag & drop files onto the chat panel
• Right-click in Explorer → OMP: Attach to Chat
• Attach recent terminal / CMD output via 📎 → Attach terminal output, /terminal, @terminal, or the terminal context menu

Paperclip/drag attachments are sent to omp as @/absolute/path mentions (images/files/folders). @ autocomplete inserts an inline @path mention in the prompt. Code selections and terminal command output are inlined as fenced blocks.

Terminal capture uses VS Code shell integration (default for bash/zsh/pwsh/fish). Run a command in the integrated terminal first, then attach it.