Changelog

• Removed padding on first user message in TUI to improve visual consistency.

• Added RPC mode (--rpc) for programmatic integration. Accepts JSON commands on stdin, emits JSON events on stdout. See RPC mode documentation for protocol details.

• Refactored internal architecture to support multiple frontends (TUI, RPC) with shared agent logic.

• Added thinking level persistence. Default level stored in ~/.pi/settings.json, restored on startup. Per-session overrides saved in session files.
• Added model cycling shortcut: Ctrl+I cycles through available models (or scoped models with -m flag).
• Added automatic retry with exponential backoff for transient API errors (network issues, 500s, overload).
• Cumulative token usage now shown in footer (total tokens used across all messages in session).
• Added --system-prompt flag to override default system prompt with custom text or file contents.
• Footer now shows estimated total cost in USD based on model pricing.

• Replaced --models flag with -m/--model supporting multiple values. Specify models as provider/model@thinking (e.g., anthropic/claude-sonnet-4-20250514@high). Multiple -m flags scope available models for the session.
• Thinking level border now persists visually after selector closes.
• Improved tool result display with collapsible output (default collapsed, expand with Ctrl+O).

• Add custom model configuration via ~/.pi/models.json

Initial public release.

• Interactive TUI with streaming responses
• Conversation session management with --continue, --resume, and --session flags
• Multi-line input support (Shift+Enter or Option+Enter for new lines)
• Tool execution: read, write, edit, bash, glob, grep, think
• Thinking mode support for Claude with visual indicator and /thinking selector
• File path autocompletion with @ prefix
• Slash command autocompletion
• /export command for HTML session export
• /model command for runtime model switching
• /session command for session statistics
• Model provider support: Anthropic (Claude), OpenAI, Google (Gemini)
• Git branch display in footer
• Message queueing during streaming responses
• OAuth integration for Gmail and Google Calendar access
• HTML export with syntax highlighting and collapsible sections