[FR] Query syntax discoverability/learnability

[0n0mat0p03ia]

Consider how to improve query syntax discoverability/learnability. For example:

• Inline examples directly in the search field
• Add a small “?” or “Syntax help” etc. next to the search box
• Autocomplete & suggestions for operators
• Show examples or “chips” below the search field
• Provide syntax hints inline as the user types
• A keyboard-friendly “cheat sheet” panel
• Progressive disclosure
• Match UI filtering actions to syntax generation
• Document the full syntax in the app (not just external docs)