Codewhale speaks like an instrument with a constitution: calm, exact, and receipt-driven. It is maritime without nautical jokes. It names the action, the boundary, and the next useful move.
- Lead with the fact:
MCP tool pool reloaded in process. - Name the boundary:
Provider switching stays in /provider. - Offer one next action when recovery is possible.
- Prefer short sentences and concrete nouns over slogans or celebration.
- Say
saved,reloaded,verified, orfailedonly when that event happened. An affordance is not a receipt. - Keep product terms exact: Codewhale; Plan / Act / Operate; Ask / Auto-Review / Full Access; Fleet / Workflow / Lane / Runtime; Work.
- Keep commands, key names, paths, and provider/model names literal. Compose them in code around localized prose.
Avoid timer carousels, marketing banners, anthropomorphic chatter, emoji celebrations, and borrowed competitor language. Guidance is action-triggered, seen-gated, and quiet.
Blue Stage is the default visual grammar, not a separate product mode.
- Stage black holds the room.
- Action blue owns general interaction.
- Structural ice owns Plan.
- Seafoam and working green report live or successful state.
- Signal Gold is reserved for the whale and moments requiring human attention.
Theme settings remain compatible as dark and light; picker labels expose
the product names Blue Stage and Blue Stage Light.
crates/tui/src/tui/glyphs.rs owns authored terminal glyphs and their narrow
ASCII fallbacks. Renderers consume semantic names rather than choosing symbols
locally.
●is the recurring Codewhale anchor: current speaker or current human choice.▸is selection or active traversal.◆means attention or waiting, never generic decoration.✓and✕are settled success and failure.▎marks finished user input;▏is a transcript continuation rail.
The terminal compatibility layer applies ASCII fallbacks. Translation strings do not own glyphs, commands, or key names.
For new customer-visible text:
- Identify the typed fact that owns it.
- Write the shortest truthful sentence in this register.
- Add a
MessageIdand every complete locale when the TUI renders it. - Keep keys, commands, paths, and glyphs as code-owned placeholders.
- Test narrow widths and the ASCII-safe renderer when chrome changes.