Let the right player
change the state.
Give your app a score or usage counter that only its owner can change. Try a valid update, then see what happens when someone else tries—or the number gets too large.
THE CROSS-CHAIN EXECUTION STUDIO
Write the rules. Test what happens.
Build for Solana and Ethereum-style chains.
Keep the code and the results. No wallet needed.
EDIT SOURCE / RUN SCENARIOS / KEEP THE ARTIFACT
WHAT WILL YOU BUILD?
Start with a working mechanism.
Change the rule. Run both sides of it.
Leave with code, an interface and evidence.
Give your app a score or usage counter that only its owner can change. Try a valid update, then see what happens when someone else tries—or the number gets too large.
Test a payment rule: hold a deposit, stop the wrong caller and release it once to a chosen recipient. The example uses test value so you can follow every step.
Give a trading pool different fees for small and large swaps. Test both rates and reject calls from the wrong controller. The example runs the fee rule; a complete pool integration is a further step.
Native artifact + typed client + account or storage map + a portable source-and-result project.
Keep it. Reopen it. Continue. ↗THE BLACK BOX, OPENED
Who can change a score?
Where does a payment go?
Test the rule and inspect the answer.
NATIVE EXECUTION. VISIBLE COST.
Our compact game-stats example uses 75% less gas
to save a new player profile.
See the test, the code and the trade-offs.
Write a Solana program in TypeScript. Run its actions, inspect the saved data and check which requests pass or fail.
Inspect the Solana programs ↗Run a contract’s actions and see what changes, what gets rejected and how much gas each step uses.
Look inside an EVM program ↗Save the same eight player stats with less blockchain storage. Open both versions and compare the measured gas, including the higher setup cost.
Compare the measured results ↗Compare build settings ↗INSIDE THE SWAP / UNISWAP v4 HOOK LAB
Make the fee a decision your code can explain. Open a working beforeSwap hook, trace both branches and inspect the permissions that let it run.
3,000 LP fee units
8,000 LP fee units
EXAMPLE POLICY / Execute the compiled callback. Inspect the selector, zero delta and fee override.
TypeScript for Solana. Solidity for EVM. Begin with a counter, a directed escrow or a v4 fee hook, then make it yours.
See generated code, account permissions, ABI, storage slots and native artifacts—without switching tools.
Run a successful path, change the caller and test an overflow. Follow what the program accepts and refuses.
Export the exact source and its result record. Reopen it, inspect its fingerprint and continue where you left off.
FUTURE ROADMAP / THE NEXT CAPABILITIES
The studio opens the program.
We will open the entire execution stack.
We will show how your app’s rules, saved data and permissions connect across chains, and flag expensive design choices before launch.
We will let you replay a change against saved chain state, inspect the failure and keep the conditions that make the test repeatable.
We will use coding agents to try hostile callers, extreme values and long action sequences, then turn useful failures into small, repeatable tests.
We will keep the code, build and test history together, so an app can be checked from its source to its deployed address.
We will explore programs that optimise their own execution plans across virtual machines—with explicit cost limits, permission boundaries and human-approved releases.
LESS DISTANCE BETWEEN AN IDEA AND ITS BEHAVIOR.