Lucas's builder journey

[Intermarch3]

Hey everyone 👋🏼

I'm Lucas Leclerc, a third-year student at Epitech Lyon. I'm currently the president of PoC Innovation, a student innovation center.
I have two years of experience in Web3, especially within the Ethereum ecosystem, where I’ve participated in internships, hackathons, and personal projects. I’ll use this experience to help improve and build new things that don’t exist yet on Gnoland.

As part of the student program, I’ll be sharing my progress and insights over the next two months. Stay tuned 🔥

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Week 1

Before the internship officially started, I implemented an Optimistic Oracle inspired by the current UMA implementation. This type of oracle is used by projects such as Polymarket.
Here is the first PR: gnolang/gno#4681
During the first week, I focused on updating my code following Leon’s comments.

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Week 2

After further discussions, we decided to move my PR to the community repository, which you can find here: gnoverse/community#16.
I have fully tested and fixed my code since it was broken after the last refactor.
Next, I plan to create Gno unit tests for my oracle and address Leon’s remaining comments.

[Intermarch3]

Week 3

I started creating tests for the oracle but encountered an error that has kept me stuck since then.
Leon suggested in a comment creating a simple Go CLI tool to easily request, propose, and vote on my oracle, as it’s currently a bit complicated to correctly fill in the transaction parameters and properly hash the value for voting.
I found the idea very useful, so I plan to work on it right after finishing the tests.

[Intermarch3]

Week 4

I have finished my tests 🎉
The issue was that the contract was not having ugnot because I was using IssueCoin() wrong. Fixed in this commit: gnoverse/community@c7a7d93

This week I will work on the CLI tool to interact with the oracle easily. Already started the base with the different commands and now working on the tx execution with the right parameters.

Here is the helper:

Goo Oracle CLI - Command-line interface for the Gno Optimistic Oracle

This CLI provides a comprehensive interface to interact with the Gno Optimistic Oracle,
allowing you to create requests, propose values, dispute proposals, vote on disputes,
and manage oracle parameters.

Usage:
  goo [command]

Available Commands:
  admin       Admin operations
  completion  Generate the autocompletion script for the specified shell
  config      Manage CLI configuration
  dispute     Manage disputes
  help        Help about any command
  propose     Propose values for requests
  query       Query oracle data
  request     Manage data requests
  vote        Manage voting on disputes

Flags:
  -h, --help      help for goo
  -v, --version   version for goo

Use "goo [command] --help" for more information about a command.

[Intermarch3]

Week 5-6

Over the past two weeks, I’ve been waiting for my oracle and my CLI to be reviewed across several PRs, so I lost a bit of time.

However, I decided to add a new feature to my CLI that lets you easily use an AI agent to search the web for the answer to any question asked on the oracle.
The agent will suggest an answer, explain why it chose that answer, and provide sources so you can verify the information yourself. If you agree with the result, you can accept it and submit the answer to the oracle directly — all from the CLI, with a single command.

To build this feature, I used Google Gemini model because it allows easy testing with a free plan.
The system automatically checks whether the provided links are broken, verifies whether the oracle’s question refers to a future event in which case the AI is not allowed to answer, ensures that the expected response matches the numeric format required by the oracle and if the AI cannot find enough reliable data it returns an error indicating that insufficient information is available.

I also improved the CLI config initialization to easily set up the default chain—whether it's local development or another chain that you can configure easily. You can specify which key to use on Gnokey, and finally, of course, the API key for Google Gemini, which is optional for the AI feature.