nightcap

Edit your Ghostty terminal config by talking to Claude — validates every change before it touches the real file, and keeps rollbackable backups.

Never hard-wrap a paragraph: prose is one line per paragraph, soft-wrapped by the reader's editor rather than broken by the file. Injected at session start, so every file the agent writes follows it from the first turn.

Every piece of English prose the agent writes for a human reader is easy to read at CEFR B2 level or a little above: sentences under 30 words, common words, no idioms, exact technical terms. Text only an agent will read is exempt. Injected at session start, so it holds on every turn. It sets the reading level, not the language.

Marketplace

Talk to the agent in any language; keep everything it writes down — code, comments, Markdown, commit messages, PR bodies, issue text — in English. Injected at session start, so it holds on every turn.