Tutorial that teaches how to write custom SuperchainERC20 token contracts #1390
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Note: Needs to be merged after ethereum-optimism#1376
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📝 WalkthroughWalkthroughThis pull request introduces two new tutorial entries and a smart contract extension for the SuperchainERC20 framework. In the metadata file ( Sequence Diagram(s)sequenceDiagram
participant Owner as Contract Owner
participant Token as CustomSuperchainToken
Owner->>Token: Call mintTo(address, amount)
Note over Token: Verify onlyOwner access
Token-->>Owner: Mint tokens to specified address
sequenceDiagram
participant User as Token User
participant Token as CustomSuperchainToken
User->>Token: Call faucet()
Token-->>User: Mint fixed token amount to caller
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Actionable comments posted: 3
🧹 Nitpick comments (3)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (3)
15-26: Improve header capitalization for consistency.The headers should follow sentence case according to the style guide.
Apply these changes:
-# Creating custom SuperchainERC20 tokens +# Creating custom SuperchainERC20 tokens -## Overview +## Overview
35-55: Enhance prerequisites with specific version requirements.Consider adding specific version requirements for the tools and dependencies.
Add version information:
### Required tools The tutorial uses these primary tools: -* Foundry: For sending transactions to blockchains. +* Foundry (v0.2.0 or later): For sending transactions to blockchains.
148-150: Add explanation for the cast command parameters.The
castcommand usage could be clearer with parameter explanations.Add a comment explaining the command:
+# Get token balance: +# - call: Execute a read-only function +# - balanceOf(address): The function to call with its parameter type +# - to-dec: Convert the hex output to decimal +# - from-wei: Convert from wei to ether cast call --rpc-url $RPC_DEV0 $TOKEN_ADDRESS "balanceOf(address)" $MY_ADDRESS | cast to-dec | cast --from-wei
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pages/stack/interop/tutorials/_meta.json(1 hunks)pages/stack/interop/tutorials/custom-superchain-erc20.mdx(1 hunks)public/tutorials/CustomSuperchainToken.sol(1 hunks)
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`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with ...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
🪛 LanguageTool
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
[style] ~109-~109: Three successive sentences begin with the same word. Consider rewording the sentence or use a thesaurus to find a synonym.
Context: ...imals)) ); ``` - Change line 62 to deploy a `CustomSuperchainTo...
(ENGLISH_WORD_REPEAT_BEGINNING_RULE)
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🔇 Additional comments (10)
public/tutorials/CustomSuperchainToken.sol (8)
1-10: LGTM! Well-structured contract declaration.The contract correctly inherits from SuperchainERC20 and Ownable, with proper state variable visibility and immutability.
12-18: LGTM! Constructor is well-implemented.The constructor properly initializes all state variables and correctly sets up ownership.
20-22: LGTM! Proper ERC20 name() implementation.The function correctly implements the ERC20 name requirement with appropriate modifiers.
24-26: LGTM! Proper ERC20 symbol() implementation.The function correctly implements the ERC20 symbol requirement with appropriate modifiers.
28-30: LGTM! Proper ERC20 decimals() implementation.The function correctly implements the ERC20 decimals requirement.
1-6: LGTM! Well-structured file header with appropriate imports.The file uses a recent, secure Solidity version and correctly imports the required dependencies.
7-11: LGTM! Well-designed contract structure with appropriate state variables.Good practices observed:
- Proper inheritance from SuperchainERC20 and Ownable
- Private state variables for better encapsulation
- Gas optimization using immutable for decimals
20-30: LGTM! Well-implemented view functions following ERC20 standard.Good practices observed:
- Proper use of virtual and override modifiers
- Correct visibility modifiers
- Functions follow ERC20 standard interface
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (2)
1-14: LGTM! Well-structured document metadata and introduction.The frontmatter is complete and the callout effectively communicates the current status.
170-174: LGTM! Clear and helpful next steps.The next steps section provides valuable resources for further learning.
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🧹 Nitpick comments (1)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (1)
90-107: Deployment instructions could be stylistically varied.
Within the deployment step instructions, the bullet list items all begin with "Change." Consider rephrasing one or more of these items to reduce repetition and enhance readability (for example, use varied verbs like "Modify" or "Update").🧰 Tools
🪛 LanguageTool
[style] ~106-~106: Three successive sentences begin with the same word. Consider rewording the sentence or use a thesaurus to find a synonym.
Context: ...) ); ``` * Change line 62 to deploy a `CustomSuperchainTo...(ENGLISH_WORD_REPEAT_BEGINNING_RULE)
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`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with ...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
🪛 LanguageTool
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
[style] ~106-~106: Three successive sentences begin with the same word. Consider rewording the sentence or use a thesaurus to find a synonym.
Context: ...) ); ``` * Change line 62 to deploy a `CustomSuperchainTo...
(ENGLISH_WORD_REPEAT_BEGINNING_RULE)
🪛 Gitleaks (8.21.2)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
⏰ Context from checks skipped due to timeout of 90000ms (3)
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🔇 Additional comments (17)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (17)
1-5: Front matter is well configured.
The YAML front matter correctly sets the title, language, and description.
7-9: Import statements look good.
The imports for theCalloutandStepscomponents from nextra/components are correct.
10-13: Callout component content is clear.
The provides a concise and informative message regarding production readiness and the OP Stack upgrade status.
15-15: Title header is appropriate.
The H1 header ("Creating custom SuperchainERC20 tokens") is clear and follows the expected title case for documentation.
17-25: Overview section is comprehensive.
The "Overview" section clearly explains the purpose of the tutorial, includes useful links, and details the tutorial’s objectives.
27-33: "What you'll do" and "What you'll learn" sections are concise.
These sections provide actionable bullet points and clear expectations.
35-49: Prerequisites are well detailed.
The technical knowledge, development environment, and required tools are clearly listed and easy to follow.
56-69: Deployment preparation instructions are clear.
The step-by-step instructions for preparing the deployment (including setup and deployment preparation steps) are easy to follow.
70-74: Custom contract creation instructions are straightforward.
The directive to copy and modify theL2NativeSuperchainERC20.solcontract and use it as a basis forCustomSuperchainToken.solis well-explained.
75-76: Review code snippet metadata for sensitivity.
A static analysis tool flagged a potential generic API key in the file reference hash (hash=4ad95b9203ce523351eba0501f8b972d). Please verify that this hash is used solely for versioning or caching purposes and does not expose sensitive credentials.
[security]🧰 Tools
🪛 Gitleaks (8.21.2)
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
78-86: Details block for explanation is informative.
The additional explanation provided in the details block clarifies the purpose of the sample function for token distribution.
112-116: Deployment command is correctly provided.
The shell command for token deployment (pnpm contracts:deploy:token) is clear and appropriately positioned.
124-126: Confirm test address exposure is intentional.
A static analysis tool flagged a generic API key at the assignment ofTOKEN_ADDRESS(0xF3Ce0794cB4Ef75A902e07e5D2b75E4D71495ee8). Ensure this address is meant for demonstration purposes and does not expose any sensitive information.
[security]🧰 Tools
🪛 Gitleaks (8.21.2)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
118-154: Sanity check instructions are thorough.
The detailed steps for verifying the deployment (including sourcing environment variables, setting RPC URLs, checking balances, and using the faucet) are clear and methodical.🧰 Tools
🪛 Gitleaks (8.21.2)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
157-162: "How does this work?" segment is explanatory.
The section explains the relevance of implementing ERC-7802 for superchain interoperability and offers useful references.
164-168: "Next steps" are clear and actionable.
This section appropriately guides the reader towards further actions, such as using the SuperchainERC20 Starter Kit and exploring additional specifications.
1-169: Overall documentation quality is high.
The tutorial follows Markdown style guidelines with consistent capitalization, clear language, and adherence to best practices. The explanations and code snippets effectively guide a user through creating and deploying custom SuperchainERC20 tokens.🧰 Tools
🪛 LanguageTool
[style] ~106-~106: Three successive sentences begin with the same word. Consider rewording the sentence or use a thesaurus to find a synonym.
Context: ...) ); ``` * Change line 62 to deploy a `CustomSuperchainTo...(ENGLISH_WORD_REPEAT_BEGINNING_RULE)
🪛 Gitleaks (8.21.2)
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
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Actionable comments posted: 0
🧹 Nitpick comments (1)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (1)
88-111: Deployment instructions are comprehensive but exhibit repetitive phrasing.
The steps for editing the deployer script—importing the new token, initializing it, and deploying the contract—are well detailed. However, the repetitive use of “Change” in successive bullet points could be varied (e.g., “Modify” or “Update”) for improved readability.🧰 Tools
🪛 LanguageTool
[style] ~106-~106: Three successive sentences begin with the same word. Consider rewording the sentence or use a thesaurus to find a synonym.
Context: ...) ); ``` * Change line 62 to deploy a `CustomSuperchainTo...(ENGLISH_WORD_REPEAT_BEGINNING_RULE)
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pages/stack/interop/tutorials/custom-superchain-erc20.mdx(1 hunks)
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`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with ...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
🪛 LanguageTool
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
[style] ~106-~106: Three successive sentences begin with the same word. Consider rewording the sentence or use a thesaurus to find a synonym.
Context: ...) ); ``` * Change line 62 to deploy a `CustomSuperchainTo...
(ENGLISH_WORD_REPEAT_BEGINNING_RULE)
🪛 Gitleaks (8.21.2)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
⏰ Context from checks skipped due to timeout of 90000ms (3)
- GitHub Check: Redirect rules - docs-optimism
- GitHub Check: Header rules - docs-optimism
- GitHub Check: Pages changed - docs-optimism
🔇 Additional comments (21)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (21)
1-5: Front matter metadata is clear and concise.
The metadata includes the title, language, and description that precisely indicate the tutorial’s focus.
7-9: Import statements are appropriate.
The MDX file correctly imports theCalloutandStepscomponents fromnextra/componentsto structure the document.
10-13: Callout block delivers essential context.
The message about the SuperchainERC20 standard’s production readiness and the OP Stack interoperability upgrade effectively informs readers of the current deployment status.
15-16: Header is defined correctly.
The H1 header “Creating custom SuperchainERC20 tokens” succinctly captures the tutorial’s purpose while correctly capitalizing the proper noun “SuperchainERC20.”
17-21: Overview section is well-articulated.
The overview succinctly explains the tutorial’s objectives and provides useful reference links, which helps readers understand the context and goals.
22-26: Fungibility and deployment methodology are clearly explained.
The text emphasizes the importance of maintaining the same contract address across chains and introduces deterministic deployment methods effectively.
27-30: "What you'll do" section is concise.
The bullet point clearly states the use of the SuperchainERC20 Starter Kit for deploying tokens with custom code.
31-34: "What you'll learn" section effectively outlines the objectives.
The list provides readers with clear expectations about deploying custom ERC-20 tokens across chains and bridging them via the SuperchainTokenBridge.
35-44: Prerequisites section is comprehensive.
This section details the necessary technical knowledge and environment requirements, ensuring that users understand the prerequisites before starting the tutorial.
45-49: Development environment is clearly specified.
The list of supported operating systems and tools (e.g., Git for version control) is concise and appropriate.
50-55: Required tools are specified accurately.
Listing Foundry as the primary tool for sending transactions provides clear direction for users who will be following the deployment steps.
56-69: Step-by-step explanation is detailed and structured.
The preparation steps guide users through setting up the deployment environment and clearly indicate actions not to be taken (e.g., “Don't start the development environment” or “Don't deploy the contracts yet”).
70-74: Instructions for creating the custom contract are clear.
Guiding users to copy and modifyL2NativeSuperchainERC20.solestablishes a straightforward approach for customizing the token contract.
75-77: Code snippet reference for CustomSuperchainToken is correctly embedded.
Note: A static analysis tool has flagged a potential generic API key on this line. Verify that the hash parameter included in the snippet (e.g.,hash=4ad95b9203ce523351eba0501f8b972d) does not expose any sensitive information and is safe to share as a file reference.🧰 Tools
🪛 Gitleaks (8.21.2)
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
78-87: Details block provides valuable context.
The expandable section with an explanation and an embedded code snippet (referencing lines 36–38 of the custom token contract) enhances clarity. Consider briefly summarizing the purpose of the referenced function for additional clarity.
112-117: Deployment command is concise and clear.
The shell commandpnpm contracts:deploy:tokenis straightforward and provides a direct action for token deployment.
118-154: Sanity check instructions are thorough.
The detailed steps—setting the token address, sourcing environment variables, configuring RPC URLs, and verifying token balance—provide a robust post-deployment validation process.🧰 Tools
🪛 Gitleaks (8.21.2)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
124-127: Review sensitivity of token address exposure.
The assignmentTOKEN_ADDRESS=0xF3Ce0794cB4Ef75A902e07e5D2b75E4D71495ee8has been flagged by static analysis as a potential generic API key. Please verify that this token address is intended for public testing and does not expose any sensitive credentials.
🧰 Tools
🪛 Gitleaks (8.21.2)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
155-156: Steps component is correctly closed.
The closing of the<Steps>component properly delineates the end of the step-by-step instructions.
157-162: Interoperability explanation is clear and informative.
The section effectively describes how ERC-7802 is implemented for superchain interoperability and provides useful external references for further reading.
163-169: Next steps section provides practical guidance.
The list of actions encourages further exploration and ensures users are aware of the need to update all related documentation.
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Actionable comments posted: 0
🧹 Nitpick comments (2)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (2)
118-154: Sanity check instructions are thorough.
The final instructions guide the reader through verifying the token deployment, including setting the token address and using the faucet function.
Suggestion: Consider replacing the hardcoded token address with a descriptive placeholder (e.g.,YOUR_TOKEN_ADDRESS) to avoid potential exposure of sensitive data and to align with documentation best practices regarding sensitive information.🧰 Tools
🪛 Gitleaks (8.21.2)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
169-169: Extraneous trailing content detected.
The standalone line with "169" appears to be unintended. Please remove it if it does not serve a purpose.
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pages/stack/interop/tutorials/custom-superchain-erc20.mdx(1 hunks)
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`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with ...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
🧠 Learnings (1)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (3)
Learnt from: qbzzt
PR: ethereum-optimism/docs#1390
File: public/tutorials/CustomSuperchainToken.sol:32-38
Timestamp: 2025-02-20T16:55:42.917Z
Learning: In tutorial and example code for the ethereum-optimism/docs repository, prioritize code clarity and simplicity over additional security measures or optimizations, unless they are specifically part of the learning objectives.
Learnt from: qbzzt
PR: ethereum-optimism/docs#1390
File: public/tutorials/CustomSuperchainToken.sol:12-19
Timestamp: 2025-02-20T16:55:07.619Z
Learning: In tutorial code examples for the Optimism documentation, prioritize clarity and simplicity over additional safety checks and validation to make the code more approachable for learning purposes.
Learnt from: sbvegan
PR: ethereum-optimism/docs#1376
File: pages/stack/interop/tutorials/deploy-superchain-erc20.mdx:125-131
Timestamp: 2025-02-20T08:02:49.192Z
Learning: Use descriptive placeholders (e.g., 'YOUR_KEY_HERE') instead of example values when documenting sensitive information like private keys in documentation files to prevent users from accidentally using insecure values.
🪛 Gitleaks (8.21.2)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
🔇 Additional comments (14)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (14)
1-5: YAML metadata header is well structured.
The title, language, and description clearly convey the tutorial’s purpose. Ensure that the title's capitalization aligns with the correct technical nomenclature from the project'snouns.txt.
7-9: Import statements are clear and concise.
The imports forCalloutandStepsfrom'nextra/components'correctly set up the required components for the tutorial.
10-13: Callout component provides essential context.
The callout informs the reader about production readiness and the ongoing development of the OP Stack interoperability upgrade.
15-24: Header and overview section clarity.
The main title and overview effectively introduce the tutorial’s objectives and methodology. Verify that terms such asSuperchainERC20follow the project’s naming conventions as detailed innouns.txt.
27-33: 'What you'll do' and 'What you'll learn' sections are clear.
The bullet points succinctly set the reader’s expectations and provide a clear roadmap for the tutorial.
35-49: Prerequisites section is comprehensive.
The listing of technical knowledge, development environment, and required tools is thorough and well-organized.
56-68: Deployment preparation instructions are clear.
The steps for preparing the deployment environment—including the note on specifying a unique salt—are informative and precise.
70-73: Custom contract creation instructions are straightforward.
The guidance to copy and modify theL2NativeSuperchainERC20.solcontract is clear.
75-76: Embedded code snippet for custom token reference.
The code snippet inclusion forCustomSuperchainToken.sol(with the hash parameter) is properly formatted. Please verify that the hash value is intended solely as a reference and does not expose any sensitive information.🧰 Tools
🪛 Gitleaks (8.21.2)
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
78-86: Explanation details block is well organized.
The expandable details section effectively clarifies the purpose of the displayed function snippet from the custom token contract.
88-110: Token deployment instructions are detailed and precise.
The step-by-step modifications for updating the deployer script (import, initialization code, and deployment) are clearly delineated, ensuring ease of implementation.
112-116: Deployment command clarity.
The command to deploy the token contract (pnpm contracts:deploy:token) is straightforward and easy to follow.
157-163: Interoperability explanation is clear.
This section effectively explains the role of ERC-7802 in enabling superchain interoperability and provides useful resource links.
164-168: Next steps section is concise and actionable.
The list of next steps offers direct guidance for further exploration, such as deploying the token and reviewing the specifications.
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Actionable comments posted: 0
🧹 Nitpick comments (4)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (4)
15-16: Heading style recommendation
The H1 header "Creating custom SuperchainERC20 tokens" is clear. Consider whether an imperative form (for example, "Create custom SuperchainERC20 tokens") might further align with best practices for instructional content.
75-76: Code fence language identifier and hash review
The code fence for referencingCustomSuperchainToken.solcurrently uses thetypescriptidentifier. Since this file is a Solidity contract, change the language identifier tosolidityfor proper syntax highlighting.
Also, the hash value (hash=4ad95b9203ce523351eba0501f8b972d) might trigger generic API key alerts. Please verify that it does not expose sensitive information.
Suggested diff:-```typescript file=<rootDir>/public/tutorials/CustomSuperchainToken.sol hash=4ad95b9203ce523351eba0501f8b972d +```solidity file=<rootDir>/public/tutorials/CustomSuperchainToken.sol hash=4ad95b9203ce523351eba0501f8b972d🧰 Tools
🪛 Gitleaks (8.21.2)
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
78-86: Details block for code explanation
The<details>element effectively groups the explanatory code snippet. The code snippet inside (lines 81-82) also usestypescript; similar to the earlier comment, consider changing it tosolidityfor consistency with the Solidity source code.
121-127: Sanity check – Hardcoded token address
The example token address provided (line 125) is a hardcoded value. To prevent inadvertent misuse or accidental exposure of sensitive information, consider replacing it with a descriptive placeholder such asYOUR_TOKEN_ADDRESS.
For example:- TOKEN_ADDRESS=0xF3Ce0794cB4Ef75A902e07e5D2b75E4D71495ee8 + TOKEN_ADDRESS=YOUR_TOKEN_ADDRESS🧰 Tools
🪛 Gitleaks (8.21.2)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
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pages/stack/interop/tutorials/custom-superchain-erc20.mdx(1 hunks)
🧰 Additional context used
📓 Path-based instructions (1)
`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with ...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
🧠 Learnings (1)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (3)
Learnt from: qbzzt
PR: ethereum-optimism/docs#1390
File: public/tutorials/CustomSuperchainToken.sol:32-38
Timestamp: 2025-02-20T16:55:42.917Z
Learning: In tutorial and example code for the ethereum-optimism/docs repository, prioritize code clarity and simplicity over additional security measures or optimizations, unless they are specifically part of the learning objectives.
Learnt from: qbzzt
PR: ethereum-optimism/docs#1390
File: public/tutorials/CustomSuperchainToken.sol:12-19
Timestamp: 2025-02-20T16:55:07.619Z
Learning: In tutorial code examples for the Optimism documentation, prioritize clarity and simplicity over additional safety checks and validation to make the code more approachable for learning purposes.
Learnt from: sbvegan
PR: ethereum-optimism/docs#1376
File: pages/stack/interop/tutorials/deploy-superchain-erc20.mdx:125-131
Timestamp: 2025-02-20T08:02:49.192Z
Learning: Use descriptive placeholders (e.g., 'YOUR_KEY_HERE') instead of example values when documenting sensitive information like private keys in documentation files to prevent users from accidentally using insecure values.
🪛 Gitleaks (8.21.2)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
⏰ Context from checks skipped due to timeout of 90000ms (3)
- GitHub Check: Redirect rules - docs-optimism
- GitHub Check: Header rules - docs-optimism
- GitHub Check: Pages changed - docs-optimism
🔇 Additional comments (15)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (15)
1-5: Frontmatter metadata and title check
The YAML frontmatter is well structured, with a clear title, language, and description. The content follows the expected conventions.
7-9: Import statements review
The imports forCalloutandStepsfrom the Nextra components are correct and clear.
10-13: Callout component usage
The Callout block is used appropriately to highlight important production deployment information.
17-21: Overview section review
The Overview explains the tutorial's purpose and provides helpful links; it is clear and informative.
35-44: Prerequisites section review
The prerequisites are detailed and clear. They properly set expectations for the technical knowledge and environment needed.
56-69: Step-by-step explanation – Deployment preparations
The instructions within the<Steps>component (covering deployment preparation and salt usage) are clear and concise. No issues are detected.
70-74: Creating the custom contract instructions
The instructions to copy and modifyL2NativeSuperchainERC20.soland save it asCustomSuperchainToken.solare straightforward and clear.
88-111: Deploy the new token instructions review
The instructions for updating the deployer script are clear. The code blocks (import statement, initialization code, and deployment call) are accurate and well formatted.
112-116: Token deployment command review
The shell command to deploy the token contract (pnpm contracts:deploy:token) is straightforward and clear.
128-134: Environment sourcing instructions review
The instructions for sourcing the.envfile and deriving the wallet address from the deployer's private key are clear. No changes are needed.
137-140: RPC URL variable setup review
The commands to set the RPC URLs are clear and use valid endpoints.
142-146: Balance check instructions review
The command to check the current balance viacast callis well specified.
148-153: Faucet call and balance verification review
The instructions for calling the faucet and verifying the balance are clear, with appropriate use ofcast sendandcast call.
157-163: Interoperability explanation review
The section detailing how the token works with ERC-7802 and links to further documentation is clear and informative.
164-169: Next steps section review
The Next Steps section provides clear actionable advice, with useful links to further resources. Ensure that all proper nouns (e.g., SuperchainERC20, Superchain Token Bridge) remain consistently capitalized.
There was a problem hiding this comment.
Actionable comments posted: 0
🧹 Nitpick comments (3)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (3)
10-13: Enhance callout message clarity.
The callout block effectively highlights essential information. Consider removing redundancy in the phrasing (for example, using "in active development" instead of "currently still in active development") to keep the message concise.
70-76: Review explanation details and hash usage.
The<details>block provides an additional explanation for the Solidity function (used for testing purposes). If the hash attributes (as seen in the previous code block) trigger static analysis tools for a potential generic API key, verify that they are safe to expose. If necessary, consider replacing them with descriptive placeholders.🧰 Tools
🪛 Gitleaks (8.21.2)
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
97-124: Review sanity check instructions.
The sanity check section methodically guides the reader through verifying the token deployment:
- Setting the
TOKEN_ADDRESS(with an example address provided),- Sourcing the
.envfile, and- Checking the token balance via CLI commands.
Caution on hard-coded values:
The sample token address (0xF3Ce0794cB4Ef75A902e07e5D2b75E4D71495ee8) is hard-coded. To prevent any possible misuse or confusion, consider replacing it with a descriptive placeholder (e.g.,YOUR_TOKEN_ADDRESS) unless this address is specifically intended for testing.
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (2)
pages/stack/interop/tutorials/_meta.json(1 hunks)pages/stack/interop/tutorials/custom-superchain-erc20.mdx(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- pages/stack/interop/tutorials/_meta.json
🧰 Additional context used
📓 Path-based instructions (1)
`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with ...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
🧠 Learnings (1)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (3)
Learnt from: qbzzt
PR: ethereum-optimism/docs#1390
File: public/tutorials/CustomSuperchainToken.sol:32-38
Timestamp: 2025-02-20T16:55:42.917Z
Learning: In tutorial and example code for the ethereum-optimism/docs repository, prioritize code clarity and simplicity over additional security measures or optimizations, unless they are specifically part of the learning objectives.
Learnt from: qbzzt
PR: ethereum-optimism/docs#1390
File: public/tutorials/CustomSuperchainToken.sol:12-19
Timestamp: 2025-02-20T16:55:07.619Z
Learning: In tutorial code examples for the Optimism documentation, prioritize clarity and simplicity over additional safety checks and validation to make the code more approachable for learning purposes.
Learnt from: sbvegan
PR: ethereum-optimism/docs#1376
File: pages/stack/interop/tutorials/deploy-superchain-erc20.mdx:125-131
Timestamp: 2025-02-20T08:02:49.192Z
Learning: Use descriptive placeholders (e.g., 'YOUR_KEY_HERE') instead of example values when documenting sensitive information like private keys in documentation files to prevent users from accidentally using insecure values.
🪛 Gitleaks (8.21.2)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx
75-75: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
125-125: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
⏰ Context from checks skipped due to timeout of 90000ms (3)
- GitHub Check: Redirect rules - docs-optimism
- GitHub Check: Header rules - docs-optimism
- GitHub Check: Pages changed - docs-optimism
🔇 Additional comments (14)
pages/stack/interop/tutorials/custom-superchain-erc20.mdx (14)
1-6: Review frontmatter structure.
The YAML frontmatter is well-structured with clear definitions for the title, language, and description. The title "Creating custom SuperchainERC20 tokens" is correctly formatted and capitalized.
7-9: Verify component imports.
The imports forCalloutandStepsfrom the Nextra components are correctly stated, ensuring that these UI elements are available later in the document.
15-21: Review tutorial introduction.
The section starting at the main heading "Custom SuperchainERC20 tokens" and the subsequent overview provides a clear and informative introduction. The inline code formatting and external links (e.g., to the SuperchainERC20 and SuperchainTokenBridge contracts) are used appropriately.
22-26: Assess fungibility and deployment explanation.
The explanation about maintaining fungibility by having the same contract address across chains is clear and instructive. The reference to deterministic deployment methods further adds context.
27-33: Review 'What you'll do' and 'What you'll learn' sections.
The bullet-point lists clearly outline the tutorial’s objectives and expected learnings. The instructions are direct and in line with the tutorial’s goals.
35-44: Validate prerequisites section.
The prerequisites section comprehensively covers both technical knowledge and necessary development environments. All essential points are mentioned in a clear manner.
45-55: Assess development environment and required tools.
The sections for the development environment and required tools are concise and informative. The list of prerequisites is clear and does not require modifications.
56-64: Review deployment preparation instructions.
The step-by-step instructions to prepare for deployment are clear and detailed. The note about providing a unique salt (e.g., using your address and a timestamp) is very helpful for ensuring fresh deployments.
65-67: Review custom contract creation step.
The instructions to copy and modify theL2NativeSuperchainERC20.solcontract are straightforward. Mentioning the suggested file path (packages/contracts/src/CustomSuperchainToken.sol) helps users locate where to place their custom contract.
68-69: Review Solidity code snippet inclusion.
The code block that includes the custom token file with the attributehash=4ad95b9203ce523351eba0501f8b972dproperly incorporates external code via MDX’s file inclusion. Please verify that the hash value is not mistaken for a sensitive API key; if it is merely an integrity check, consider adding a comment for clarification.
77-93: Review token deployment instructions.
The instructions for updating the deployment script (SuperchainERC20Deployer.s.sol) are detailed and easy to follow. The provided code snippets for changing the import, initialization, and deployment steps clearly illustrate the required modifications.
94-96: Check deployment command syntax.
The shell commandpnpm contracts:deploy:tokenis succinct and appears correctly formatted for the intended deployment process.
157-163: Validate interoperability explanation.
The "How does this work?" section clearly explains that superchain interoperability requires implementing ERC-7802. The supporting links to the official specifications and the SuperchainERC20 implementation are accurate and useful.
164-169: Review next steps section.
The "Next steps" section effectively directs the reader on further actions, such as deploying the token using the starter kit and exploring additional specifications. All links are clear and the bullet list is well-organized.
Description
A tutorial that explains how to use the SuperchainERC20 starter kit for custom tokens, by modifying the
L2NativeSuperchainERC20contract.Note that this PR cannot be merged prior to #1376
Tests
N/A
Additional context
N/A
Metadata
N/A