Runs started by pi.sendMessage(..., { triggerTurn: true }) skipped before_agent_start. After their first tool call, the next-turn refresh fell back to the base prompt options and patched away the sections handlers had added, changing the system prompt mid-run and breaking the provider prompt cache.
These runs now go through the same setup as prompt(): compaction check, before_agent_start, tool loadout, nextTurn messages, handler messages, and the system patch. BeforeAgentStartEvent is a union on messageType ("user" or "custom"); custom events carry the starting message.
The session counts as busy from the start of setup, so messages sent while handlers run go into the starting run instead of starting a second one, and an abort requested meanwhile aborts the run once it starts.
closes#10267, closes#5581, closes#10639, closes#10289
partly fixes#10606
Shift+P conflicts with typing capital P. Ctrl+Alt+P is cross-platform
safe and doesn't conflict with common shortcuts like:
- Ctrl+Shift+P (command palette on Windows/VS Code)
- Shift+Alt+P (types π on macOS)
Changes from the original:
- Explicit [DONE:n] tag tracking (more accurate than auto-marking on tool_result)
- Plan: header requirement - only extracts todos from 'Plan:' sections
- Utils extracted to separate file for testability
- Better session resume - only scans messages after plan-mode-execute marker
- Context filtering - properly filters plan-mode-context custom type messages
- Refactored to directory structure (index.ts + utils.ts + README.md)
The original auto-completed steps on every tool_result, which was inaccurate
for multi-tool steps. This version uses explicit [DONE:n] markers that the
agent outputs after completing each step.
