# Cash Trough

> Model the money for one edition of a technical event - a conference, a hackathon or a meetup series - and read it at
> its lowest cash point. Enter the cost lines (each a dated quote or a labelled placeholder, with the date it leaves and
> the date it locks), the expected show-up number, what comes off the top and the sponsor revenue at each scope tier.
> A metered run writes the budget or the shortfall plan. Built on the SkillSafe skill @samber/event-budget
> (samber/dev-event-organizer-skills, MIT).

https://cash-trough.skillsafe.ai/

## What is free
- Every line split fixed, per head or per speaker, totalled at the expected show-up number (a registration count is flagged), ranges carried at their top, silent placeholders flagged.
- The revenue posture - sponsor-led, registration-led, annual-funding-led or sponsorship-by-construction - with its deletions: annual funding on a one-off, ticket postures on a free event, membership tied to ticket discounts.
- Fees off the top of every inflow; the sponsorship and ticket targets, or the fundraising target when there is no ticket line.
- Good, Better and Best costed cumulatively, each with a paying-attendee break-even (comps carry their per-head cost) or a fundraising target and gap; sponsorship estimated per tier.
- The contingency stack - floor, pad, downgrade ladder - labelled self-set; the reserve contribution as its own line.
- A dated cash schedule at the planned tier with its lowest point; a series' per-head lines leave edition by edition; early payments with no discount flagged.
- The cut order, each rung priced net of the sponsorship it forfeits after fees, with its last recoverable date; per-head lines locked by the checkpoint.
- The gate: every line a dated quote or an explicit placeholder, and a computed lowest point.
- Cash schedule CSV, Markdown and JSON exports.

## The metered lanes
Two tasks on gpt-terra, metered per run, routed by `task`. Input string fields: `task` (budget or shortfall), `event`, `lines` and `facts` (the page's model, the gate and every finding).
- `budget` replies with `summary`, `posture`, `lines`, `deductions`, `targets`, `tiers`, `contingency`, `reserve`, `cash`, `tax_question`, `signals` and `caveats`; the page holds every line, target, tier, the floor and pad and the lowest cash point to its own.
- `shortfall` replies with `summary`, `rungs`, `locked`, `last`, `checkpoints`, `sponsor_note`, `team_note` and `caveats`; the page holds each rung's saving, sponsorship lost, net and date, allows only its own checkpoint dates, and refuses a price or discount in the sponsor note.

## Links
- API tutorial: https://cash-trough.skillsafe.ai/api.html
- Source skill: https://skillsafe.ai/skill/@samber/event-budget