Autocomplete

Cogno shows suggestions as you type. The panel appears above or below the cursor and displays up to 6 entries at a time, with up to 100 suggestions ranked by relevance.

Suggestion sources

Four suggestors run in parallel on every keystroke:

Source	What it provides
History — commands	Commands from your shell history that match the current input
History — patterns	Recurring command patterns extracted from history (e.g. git commit -m "...")
History — directories	cd targets from your history, ranked by how often you visit them
Spec commands	Subcommand and flag completions for 1000+ CLI tools

The top 3 history suggestions are always shown first; spec suggestions fill the remaining slots.

Filter modes

Press the keybind for cycle_completion_mode to switch between:

Mode	Shows
all	History and spec suggestions combined
history-only	Only history-based suggestions
context-only	Only spec-based suggestions

The selected mode persists across sessions.

Keyboard

Key	Action
Tab / ↓	Select next suggestion
↑	Select previous suggestion
Enter	Accept selected suggestion
Escape	Dismiss
trigger_autocomplete keybind	Open manually (default: Control+Space)
cycle_completion_mode keybind	Switch filter mode (default: Shift+Space)

Configuration

Setting	Default	Description
autocomplete.provider.timeout_ms	160	Max time in ms a spec provider may take before its results are skipped