01
AI talks, rules decide
The code computes each negotiation's limits, the AI answers in a fixed, schema-validated format, and the game checks everything before applying it.
Browser game
Soccer Deal
A football manager that runs entirely in the browser, where every signing is a negotiation with AI.
- 6competitions per season
- 58foreign clubs with real squads
- 6president personalities
- 50+reviewed pull requests
The challenge
In the classics of the genre, signing a player was a form: a number, accepted or rejected. The idea was to turn it into a conversation with club presidents who haggle and remember you, without letting the AI decide price or results, and without high server costs.
What was built
- Full season: Brazilian Série A and B, state leagues, Copa do Brasil, Libertadores and Sudamericana
- Negotiations and press conferences powered by AI, with prewritten lines when the AI is unavailable
- Live match with its own engine, able to explain any result
- Passwordless account via e-mail link, and cloud saves
- Sound effects, narration, an opening video and match illustrations
Decisions that mattered
02
The game runs in the browser
Calendar, squad, finances and matches live in the browser. The server only handles AI, accounts and saves, which keeps costs close to zero.
03
AI cost with guardrails
Before each call, the server reserves the message's maximum cost. There are limits per invite, per address and a daily cap for the whole site.
Technology
- JavaScript modules
- Eleventy
- PHP and MySQL
- Claude API
- ElevenLabs
More work
amardoarSocial project
A showcase of charities in southern Brazil, with donations by Pix straight to each charity.
faunotecaWildlife guide
A guide to Brazilian wildlife, starting with snakes, written for non-specialists.
fghisi.com.brPersonal site and blog
A bilingual blog about engineering and leadership, with a podcast, that also hosts the other projects.
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