# Nightfold

> A wind-down session you play. Assemble a short session from segments - paced breathing, a body scan or grounding
> script, a sleep story or visualisation, silence, soft chimes - and play it full-screen. A coral ring grows and
> shrinks with each breath phase; script phrases fade in one per breath on the phase they are tagged with; the display
> dims as the session goes on, and a sleep mode drops to near-black with dim amber text. A guide model writes bespoke
> breath-timed scripts and gently adjusts the plan from how recent sessions went. Wellbeing practice for ordinary days;
> not therapy, not medical advice.

- URL: https://nightfold.skillsafe.ai/
- API docs: https://nightfold.skillsafe.ai/api.html
- Token panel: https://nightfold.skillsafe.ai/tokens.html
- Platform: SkillSafe (https://skillsafe.ai/)

## Free in the browser, no account

- Six breathing patterns with a live pacer and breath counter: Box 4-4-4-4, 4-7-8, Coherent 5.5, Calm 4-6,
  Settle 4-2-6, Small breaths 3-4 (for children).
- A session strip of up to 12 segments with drag reorder, lengths, patterns and scripts; four presets (evening
  wind-down, child at bedtime, exam nerves, mid-day reset).
- Eight bundled scripts: an evening body scan, a child's floppy-teddy scan, five-senses grounding, before-the-exam
  grounding, a mid-day reset, a night-harbour sleep story, a sleepy-fox bedtime story, a warm-lake visualisation.
- The phrase-timing engine: one breath slot per full cycle, a word budget per phase at 1.5 words a second, overlong
  phrases split across two phases of the same breath or flagged.
- The player: full-screen, chrome that hides when you are still, slow dimming, sleep mode, optional soft chime, a
  gentle end with no alarm. Respects reduced motion (a still ring and a filling bar).
- A before/after log on a 1-5 scale (wound up to settled), a weekly summary and a dot plot.
- Exports: printable script cards, script Markdown, session plan JSON (and import), log CSV.

## The guide (metered, needs a SkillSafe account)

One model (gpt-terra), two tasks routed by the `task` field:

- `script` - a bespoke body scan, grounding sequence, sleep story or visualisation for one segment, as exactly
  `slot_count` phrases, each tagged `in`, `hold`, `out` or `rest` and within that phase's word budget. The page
  checks words per phrase, phrase count against slots and phases against the pattern before it plays.
- `plan` - reviews the plan and the last few sessions (as days ago and ratings, never timestamps) and proposes an
  adjusted plan with one line of reasoning per change; `intent: "longer"` is the same session tomorrow, a little
  longer. Changes appear as ghosted segments to accept one by one; unknown patterns or scripts are refused.

The guide never diagnoses, names conditions or gives health advice.

## Sources

Script craft derived from @jwynia/sleep-story (https://skillsafe.ai/skill/@jwynia/sleep-story/,
github.com/jwynia/agent-skills): stories that offer gentle cognitive engagement and fade naturally into rest.