covenants.diy: a node editor for covenant scripts

[askii]

I'm working on an open-source node editor for experimenting with covenant scripts.

covenants.diy

You can wire nodes together and it builds the taproot output, assembles the tapscript, computes the sighash, and runs the script in an interpreter that reports what each opcode did to the stack. Every hash and every signature is computed in the browser.

Every graph has a permalink, so the nine worked examples below open already built and running. Click one and step through it:

Vault	BIP 119. Delay to notice a theft, and a cold path to stop it
Congestion control	BIP 119. One transaction commits to a tree of payouts
Delegation	BIP 348. Hand someone one spend without handing them your key
Oracle payout	BIP 348 + 119
Rebindable state	BIP 448. The update leaf is three bytes
Rebindable state, the older way	BIP 118. The same channel with an ANYPREVOUT key type
Merkle proof	BIP 347. A script folds a leaf back into a root it commits to
CAT-only covenant	BIP 347. No CSFS: the script builds its own signature
Recursive covenant	BIP 347 + 348. A coin that can only be spent back into itself

If there is a construction you would like wired up as an example, say so and I will add it .

A selector in the header sets which proposals you assume are active, and every script is marked enforced, degraded, or open against that choice.
Source is MIT, except the interpreter fork, which keeps the CC0 dedication it came with.

*Copying a permalink uploads the graph, which is what makes the link short; nothing else leaves the browser.