Shared To-Do Board

⚠️ Experimental — generated with no human supervision. This realm was produced automatically by an MCP-driven agent to exercise the gno MCP server and tooling, and to generate test content for gno compilers, linters and formatters. Not audited. Not for production. Full context & folder README: r/moul/x/daily

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An on-chain, shared to-do list realm for the gno.land sapphire testnet (gno 0.9). Anyone can add an item to the board; each item records the caller's address as its author, and can be toggled open/done or removed. Render shows the board as Markdown checkboxes with live open/done counts, newest item first.

• Realm path: gno.land/r/REPLACE_ADDR/todos (replace REPLACE_ADDR with your deploy address)

Exported transactions

Function	Effect
Add(text string) int	Adds an item authored by the caller, returns its id
Toggle(id int)	Flips an item between open and done
Remove(id int)	Deletes an item

All three are gno 0.9 crossing functions (cur realm first parameter) and must be invoked with cross(cur) from another realm, or directly via MsgCall.

Example calls

 1# Add an item (returns the new id)
 2gnokey maketx call -pkgpath "gno.land/r/REPLACE_ADDR/todos" \
 3  -func Add -args "buy milk" -gas-fee 1000000ugnot -gas-wanted 2000000 \
 4  -broadcast -chainid sapphire-1 -remote <rpc> mykey
 5
 6# Mark item #3 done (toggle)
 7gnokey maketx call -pkgpath "gno.land/r/REPLACE_ADDR/todos" \
 8  -func Toggle -args 3 -gas-fee 1000000ugnot -gas-wanted 2000000 \
 9  -broadcast -chainid sapphire-1 -remote <rpc> mykey
10
11# Remove item #3
12gnokey maketx call -pkgpath "gno.land/r/REPLACE_ADDR/todos" \
13  -func Remove -args 3 -gas-fee 1000000ugnot -gas-wanted 2000000 \
14  -broadcast -chainid sapphire-1 -remote <rpc> mykey

Example render output

1# Shared To-Do Board
2
32 open · 1 done · 3 total
4
5- [ ] #3 walk dog (g1abc…)
6- [x] #2 buy milk (g1abc…)
7- [ ] #1 write realm (g1def…)

What changed in v1

Two ports against v0, which stays live and untouched.

Rendering

Identical behaviour to v0 apart from rendering, which now goes through p/moul/kit/ui instead of the local shortAddr helper.

One address format. Eleven realms carried their own shortAddr with four different truncation rules, so the same account rendered differently depending on which realm you opened. ui.Addr is that decision made once: 8 leading characters, an ellipsis, 4 trailing, in backticks.

Visible change: addresses now render in monospace.

Storage

State moved from a hand-rolled avl.Tree + nextID + zero-padding helper to p/moul/kit/store, which keys entries by seqid instead of a fixed-width decimal string.

v0 padded ids to width 12. Past that width the padding stops and the tree orders "1000000000000" before "999999999999", so every list this realm renders would be wrong from that entry on. store keys are 8 big-endian bytes whose order is numeric for every uint64, so there is no width left to outgrow.

item loses its id field, which the store now owns. Render's newest-first list also gets shorter: v0 collected every line into a slice in ascending order and then walked it backwards, where the store iterates descending directly. Toggle's not-found path becomes one line, and Remove's message gains the id in the same wording.

Ids stay plain integers and the rendered output of the storage port is unchanged. Each port changes something v0 promised, one the rendered output and one the storage layout, so under this repo's versioning rule each is a compatibility change and neither could be an edit to v0 in place.

They land in the same new version because v1 was never published. A version number is a tag on something that exists on a chain, and until it does there is nothing for a second number to avoid disturbing, so the right move is to keep editing the version you have. gnopm unbump is what folded the second port back down into this one.

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Part of moul/gno-contracts — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.

Dependency graph:

🧪 Highly experimental — potentially vibe-coded. Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: DISCLAIMER.