Adds a non-intrusive mini help popup to the TUI composer. When the user types ? into the empty input field, a small floating panel appears above the composer showing common slash commands and a preview of keyboard hotkeys. The popup does not steal focus, includes a hint to type /help for the full help panel, and can be dismissed with backspace. This gives new (and forgetful) users a quick reference without leaving the chat flow or opening a full overlay.

Related Issue

Fixes #

Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)

• ✨ New feature (non-breaking change that adds functionality)

• 🔒 Security fix

• 📝 Documentation update

• ✅ Tests (adding or improving test coverage)

• ♻️ Refactor (no behavior change)

• 🎯 New skill (bundled or hub)

Changes Made

• ui-tui/src/components/helpHint.tsx — new component: renders a positioned popup with COMMON_COMMANDS (6 frequently-used slash commands) and the first 8 entries from HOTKEYS, padded to align labels and descriptions. Uses position="absolute" + bottom="100%" so it floats above the composer without affecting layout or focus.

• ui-tui/src/components/appLayout.tsx — imports HelpHint and conditionally renders it when composer.input === '?' && !composer.inputBuf.length.

How to Test

1. Run hermes --tui (or the dashboard /chat which embeds the TUI).

2. Focus the composer input and type ? and nothing else.

3. Observe the rounded popup appears directly above the prompt, listing commands like /help, /clear, /resume, and hotkeys.

4. Verify the popup does not intercept typing or arrow-key focus elsewhere.

5. Press Backspace to remove ? and confirm the popup disappears instantly.

6. Type additional characters after ? (e.g. ?h) and confirm the popup does not appear (guard requires !composer.inputBuf.length).

Checklist

Code

• I've read the Contributing Guide
• My commit messages follow Conventional Commits (fix(scope):, feat(scope):, etc.)
• I searched for existing PRs to make sure this isn't a duplicate
• My PR contains only changes related to this fix/feature (no unrelated commits)
• I've run pytest tests/ -q and all tests pass
• I've added tests for my changes (required for bug fixes, strongly encouraged for features)
• I've tested on my platform:

Documentation & Housekeeping

• I've updated relevant documentation (README, docs/, docstrings) — or N/A
• I've updated cli-config.yaml.example if I added/changed config keys — or N/A
• I've updated CONTRIBUTING.md or AGENTS.md if I changed architecture or workflows — or N/A
• I've considered cross-platform impact (Windows, macOS) per the compatibility guide — or N/A
• I've updated tool descriptions/schemas if I changed tool behavior — or N/A

Screenshots