session // gastronomyconnected
$

// the aiken & uplc debugger

GASTRONOMY

Step through Cardano smart contracts line by line. Travel backwards in execution. Map UPLC straight back to the Aiken source that produced it.

▮./INSTALL GASTRONOMY▮read the docs
02step.debug

No more
trial & error.

Trace every UPLC step. Walk the execution forwards and backwards. Map each frame to the Aiken line that emitted it.

  • >step through every reduction
  • >rewind without restarting
  • >map uplc → aiken source
  • >inspect context, env, root
gastronomy ── fibonacci.json
step 310/501
src/fibonacci.ak2:6
1fn fibonacci(n: Int) -> Int {
2  if n == 0 {
3    0
4  } else if n == 1 {
5    1
6  } else {
7    fibonacci(n - 1) + fibonacci(n - 2)
8  }
9}
contextROOT
applyhead
force$1
lambdax → …
env4 frames
1:1(con int 2)
1:2(con data #d8)
1:3(con bytestring #ab…)
1:4(con int 1)
termsrdx 31
head(builtin add)
next(force x)
computefibonacci.ak:2:6
pprevnnextrrewindqquit
03features.manifest

Build fast. Build smart.

Four things Gastronomy does better than any other tool on Cardano. Pick one to focus on, or step through with n and p.

$ gastronomy trace <tx-hash>
1234·←→
04connect.community

Pair-debug with the team.

Gastronomy is open source and actively maintained by Sundae Labs. File an issue, open a PR, or just say hi.

$sundae chat --connect

↵ open any channel to continue