News

Simplified compaction flow: Removed proactive compaction (aborting mid-turn when threshold approached). Compaction now triggers in two cases only: (1) overflow error from LLM, which compacts and auto-retries, or (2) threshold crossed after a successful turn, which compacts without retry.

Compaction retry uses Agent.continue(): Auto-retry after overflow now uses the new continue() API instead of re-sending the user message, preserving exact context state.

Merged turn prefix summary: When a turn is split during compaction, the turn prefix summary is now merged into the main history summary instead of being stored separately.

isCompacting property on AgentSession: Check if auto-compaction is currently running.

Session compaction indicator: When resuming a compacted session, displays "Session compacted N times" status message.

OpenAI compatibility overrides in models.json: Custom models using openai-completions API can now specify a compat object to override provider quirks (supportsStore, supportsDeveloperRole, supportsReasoningEffort, maxTokensField). Useful for LiteLLM, custom proxies, and other non-standard endpoints. (#133, thanks @fink-andreas for the initial idea and PR)

xhigh thinking level: Added xhigh thinking level for OpenAI codex-max models. Cycle through thinking levels with Shift+Tab; xhigh appears only when using a codex-max model. (#143)

Collapse changelog setting: Add "collapseChangelog": true to ~/.pi/agent/settings.json to show a condensed "Updated to vX.Y.Z" message instead of the full changelog after updates. Use /changelog to view the full changelog. (#148)

Bash mode: Execute shell commands directly from the editor by prefixing with ! (e.g., !ls -la). Output streams in real-time, is added to the LLM context, and persists in session history. Supports multiline commands, cancellation (Escape), truncation for large outputs, and preview/expand toggle (Ctrl+O). Also available in RPC mode via {"type":"bash","command":"..."}. (#112, original implementation by @markusylisiurunen)

• Limits: 2000 lines OR 50KB (whichever hits first), never partial lines
• read: Shows [Showing lines X-Y of Z. Use offset=N to continue]. If first line exceeds 50KB, suggests bash command
• bash: Tail truncation with temp file. Shows [Showing lines X-Y of Z. Full output: /tmp/...]
• grep: Pre-truncates match lines to 500 chars. Shows match limit and line truncation notices
• find/ls: Shows result/entry limit notices
• TUI displays truncation warnings in yellow at bottom of tool output (visible even when collapsed)

• /compact [instructions]: Manually compact context with optional custom instructions for the summary
• /autocompact: Toggle automatic compaction when context exceeds threshold
• Compaction summarizes older messages while keeping recent messages (default 20k tokens) verbatim
• Auto-compaction triggers when context reaches contextWindow - reserveTokens (default 16k reserve)
• Compacted sessions show a collapsible summary in the TUI (toggle with o key)
• HTML exports include compaction summaries as collapsible sections
• RPC mode supports {"type":"compact"} command and auto-compaction (emits compaction events)