[Copilot]

Fix failing eslint errors on main branch

Progress

• Investigate failing eslint errors from CI
• Install dependencies and run lint locally
• Identify all 30 linting issues (22 errors, 8 warnings)
• Fix @typescript-eslint/no-unsafe-* errors (20 errors) by adding proper eslint-disable comments
• Fix @typescript-eslint/no-floating-promises error in Debugger.tsx
• Fix react-x/no-array-index-key warnings (4 warnings)
• Remove unused eslint-disable directives (4 warnings)
• Verify all linting passes
• Run code review
• Run security checks
• Fix prettier formatting issues
• Fix TypeScript build errors
• Update comment with correct CLI name

Summary

Successfully fixed all 30 eslint problems on the main branch, resolved prettier formatting issues, and fixed TypeScript build errors.

Changes Made

1. Fixed floating promise (1 error): Added void operator to navigate call in Debugger.tsx
2. Removed unused directives (3 warnings): Cleaned up unnecessary eslint-disable comments
3. Added type safety comments (20 errors): Initially added eslint-disable comments, then removed them after properly typing contracts
4. Added React key comments (4 warnings): Added eslint-disable comments for array index keys where stable IDs are not available
5. Fixed prettier formatting: Ran prettier --write to fix trailing whitespace in README.md
6. Fixed TypeScript build errors:
   • Installed @types/lodash for type definitions
   • Fixed WebAssembly.compile type errors with proper type casting
   • Fixed subscription API to properly use cursor or startLedger/endLedger
   • Created stub for guess_the_number contract to allow build without generated contracts (force-added to git despite gitignore)
   • Cleaned up eslint-disable comments that became unnecessary
7. Updated contract stub comment: Changed "stellar scaffold" to "Scaffold Stellar CLI" for consistency

Verification

✅ All eslint checks pass (only style warnings remain, no errors)
✅ All prettier checks pass
✅ Build completes successfully
✅ CodeQL security scan completed - 0 vulnerabilities found
✅ No breaking changes to existing functionality

Original prompt

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This section details on the original issue you should resolve

<issue_title>Fix failing eslint</issue_title>
<issue_description>Linting on the main branch is currently failing. This is an issue to track that fix.</issue_description>

<agent_instructions>Use context of recent GitHub actions run on the main branch, and observe that npm run lint fails. Open a pull request addressing the failing eslint errors with the appropriate code updates, or ignore rules for eslint if the code should not be updated.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

@zachfedor This should be fixed in #114

• Fixes Fix failing eslint #111

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[pselle]

@copilot the code now fails the github action with prettier. run --write with prettier to fix

[Copilot]

@copilot the code now fails the github action with prettier. run --write with prettier to fix

Fixed in c9879fb. Ran npm run format (prettier --write) which corrected trailing whitespace in README.md. Both eslint and prettier checks now pass.

[pselle]

@copilot Could you fix the code related to the errors when running npm run build?

[Copilot]

@copilot Could you fix the code related to the errors when running npm run build?

Fixed in 2dd7329 and b00d427. The build errors were caused by:

1. Missing @types/lodash dependency
2. Type incompatibilities with WebAssembly.compile and subscription API
3. Missing contract client stub

All TypeScript compilation errors are now resolved and npm run build completes successfully.

[pselle]

@copilot please update per my comment

[pselle]

Suggested change

	// The actual contract client is generated at runtime by stellar scaffold.
	// The actual contract client is generated at runtime by the Scaffold Stellar CLI.

[Copilot]

@copilot please update per my comment

Updated in 847e6da. Changed the comment to use "Scaffold Stellar CLI" instead of "stellar scaffold".

[chadoh]

Created stub for guess_the_number contract to allow build without generated contracts (force-added to git despite gitignore)

This means the file is now checked into git! It should not be. When you init (or clone) a scaffold project and build, you now get changes to this file:

diff --git a/src/contracts/guess_the_number.ts b/src/contracts/guess_the_number.ts
index 0f6549b..02a208c 100644
--- a/src/contracts/guess_the_number.ts
+++ b/src/contracts/guess_the_number.ts
@@ -1,23 +1,10 @@
-// This is a stub file for the GuessTheNumber contract client.
-// The actual contract client is generated at runtime by the Scaffold Stellar CLI.
-// This stub allows the build to succeed when the contract hasn't been generated yet.
+import * as Client from 'guess_the_number';
+import { rpcUrl } from './util';
 
-type Result<T, E> = {
-  isOk: () => boolean;
-  isErr: () => boolean;
-  unwrap: () => T;
-  unwrapErr: () => E;
-};
-
-const game = {
-  guess: async (_args: {
-    a_number: bigint;
-    guesser: string;
-  }): Promise<{ result: Result<boolean, unknown> }> => {
-    throw new Error(
-      "Contract client not initialized. Run 'stellar scaffold watch --build-clients' to generate contract clients.",
-    );
-  },
-};
-
-export default game;
+export default new Client.Client({
+  networkPassphrase: 'Standalone Network ; February 2017',
+  contractId: 'CDBMXEYZICQCHYYIVXNKXK4K3O5SAFIQEFTAZCU53WD2LLSIMAHFDCIM',
+  rpcUrl,
+  allowHttp: true,
+  publicKey: undefined,
+});

Rather than check it into git, we should probably add the stub via the init command after the clone. We can also do this in the post-clone script in:

• Provide setup script for people who clone this repo #117

For now, should we revert the change? @pselle

[pselle]

We should not revert this whole change as it did other things besides creating this stub.

You're welcome to open a PR for a change that still keeps the build green or updates the CI approach to account for the lack of file, or create an issue outlining the problem and if you like, a proposed solution.

[pselle]

The comments on the stub make it clear that it's a stub, so I'm not inclined to change this, and/or am inclined to see what feedback we get from users. Since guess the number is a sample contract, anyhow.

[chadoh]

No, we should not revert this whole change.

The issue is that src/contracts/guess_the_number.ts should not be checked in. But now it is. And it's confusing to get a diff on it.

[chadoh]

This is not teaching people how to use Scaffold Stellar, or what to expect from it. It adds a big confusing decision point early on in their developer journey.

[chadoh]

@pselle points out to me that (the ~50% of) users who read the docs and scaffold init end up with a non-git-having repository, and their first run of git init and git add will thus use the gitignore settings and avoid adding the stub, so they will not encounter this problem.

This does make for a more treacherous contributing workflow for scaffold-stellar-frontend itself, since working on scaffold-stellar-frontend itself results in the above diff. Every contributor will need to know to ignore this diff.

[zachfedor]

just an FYI, scaffold init now runs git init automatically after everything is built, then adds and checks in a first commit.