How do use cast to relay messages#1589
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📝 Walkthrough## Walkthrough
This change introduces a new manual relay transaction tutorial for blockchain interoperability using the Foundry `cast` tool. It adds a metadata JSON file (`_meta.json`) describing the tutorial, a detailed Markdown tutorial file (`relay-with-cast.mdx`), and a shell script (`setup-for-manual-relay.sh`) that automates the setup of a local cross-chain messaging environment. The shell script creates and deploys two Solidity contracts—`Greeter` and `GreetingSender`—on separate local chains, sets up the necessary dependencies, and provides a helper script (`sendAndRelay.sh`) to demonstrate sending and manually relaying a cross-chain message. The tutorial guides users through the entire process, including event log extraction, relay message construction, and access list generation, culminating in the successful relay of a message between two chains.
## Sequence Diagram(s)
```mermaid
sequenceDiagram
participant User
participant ChainA
participant ChainB
participant SupersimRPC
User->>ChainA: Deploy GreetingSender contract
User->>ChainB: Deploy Greeter contract
User->>ChainA: Call setGreeting() on GreetingSender
ChainA-->>User: Emit SentMessage event
User->>User: Extract event log and construct payload
User->>SupersimRPC: Request access list for relay tx
SupersimRPC-->>User: Return access list
User->>ChainB: Call relayMessage() on CrossDomainMessenger with payload and access list
ChainB-->>User: Greeter greeting updatedPossibly related PRs
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Actionable comments posted: 4
🧹 Nitpick comments (5)
public/tutorials/setup-for-manual-relay.sh (2)
86-90: Add error handling for directory changes
Similar to the initialcd, wrapcd libandcd ..with|| exit 1or set strict mode so failed directory changes abort:- cd lib + cd lib || exit 1 ... - cd .. + cd .. || exit 1🧰 Tools
🪛 Shellcheck (0.10.0)
[warning] 86-86: Use 'cd ... || exit' or 'cd ... || return' in case cd fails.
(SC2164)
91-93: Use a more robust download command
Replacewgetwith a fail-safecurlinvocation (or ensurewget -qerrors are caught):- wget https://raw.githubusercontent.com/.../IL2ToL2CrossDomainMessenger.sol + curl -fsSL https://raw.githubusercontent.com/.../IL2ToL2CrossDomainMessenger.sol -o IL2ToL2CrossDomainMessenger.solpages/interop/tutorials/message-passing/relay-with-cast.mdx (3)
24-28: Remove unused import
Calloutis imported but never used. Please remove the unused import to keep the code clean:- import { Callout } from 'nextra/components'
59-59: Use sentence case for H3 headings
Change “### What You'll Build” to:### What you'll buildto comply with sentence-case rules for headers.
101-102: Avoid exposing private key in docs snippet
Displaying the hardcoded private key in the tutorial may confuse readers or leak test credentials. Replace it with a placeholder or instruct the user to set their own:- PRIVATE_KEY=0xac0974bec39a... + PRIVATE_KEY=<YOUR_SUPERSIM_PRIVATE_KEY>🧰 Tools
🪛 Gitleaks (8.21.2)
101-101: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
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pages/interop/tutorials/message-passing/_meta.json(1 hunks)pages/interop/tutorials/message-passing/relay-with-cast.mdx(1 hunks)public/tutorials/setup-for-manual-relay.sh(1 hunks)
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`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with the following criteria: - First, check the frontmatter section at the top of the file: 1. For regular pages, ensure AL...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- First, check the frontmatter section at the top of the file:
- For regular pages, ensure ALL these fields are present and not empty:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] personas: [non-empty array] categories: [non-empty array] content_type: [valid type] ---
- For landing pages (index.mdx or files with ), only these fields are required:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] ---
- If any required fields are missing or empty, comment:
'This file appears to be missing required metadata. Please check keywords.config.yaml for valid options and add the required fields manually. You can validate your changes by running:pnpm validate-metadata ```'- 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/interop/tutorials/message-passing/relay-with-cast.mdx
🪛 Biome (1.9.4)
pages/interop/tutorials/message-passing/_meta.json
[error] 2-3: Expected a property but instead found '}'.
Expected a property here.
(parse)
🪛 Gitleaks (8.21.2)
pages/interop/tutorials/message-passing/relay-with-cast.mdx
101-101: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
public/tutorials/setup-for-manual-relay.sh
7-7: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
🪛 Shellcheck (0.10.0)
public/tutorials/setup-for-manual-relay.sh
[warning] 5-5: Use 'cd ... || exit' or 'cd ... || return' in case cd fails.
(SC2164)
[warning] 86-86: Use 'cd ... || exit' or 'cd ... || return' in case cd fails.
(SC2164)
[warning] 97-97: Use semicolon or linefeed before 'done' (or quote to make it literal).
(SC1010)
⏰ 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 (2)
public/tutorials/setup-for-manual-relay.sh (2)
13-53: ContractGreeterimplementation looks solid
The SPDX license, pragma, imports, and event logic for cross-domain messaging are all correctly defined and follow best practices.
55-83: ContractGreetingSenderimplementation looks good
Constructor arguments and thesetGreetingrelay logic usingabi.encodeCallare appropriately implemented.
Co-authored-by: Blessing Krofegha <bkrofegha@gmail.com>
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Actionable comments posted: 2
♻️ Duplicate comments (1)
pages/interop/tutorials/message-passing/relay-with-cast.mdx (1)
29-29: Align H1 with frontmatter title
The frontmattertitleis Manual relay transaction tutorial (singular) but the H1 reads “Manual relay transactions tutorial” (plural). Please make them consistent.
🧹 Nitpick comments (2)
pages/interop/tutorials/message-passing/relay-with-cast.mdx (2)
60-60: Use sentence case for section heading
Change “### What You'll Build” to “### What you'll build” so only the first word is capitalized (sentence case).
102-102: Add disclaimer for example private key
The tutorial hard-codes a default private key (0xac0974…). Note that this is an example key only (e.g., Anvil’s default) and must not be used in production. Consider adding a comment or note to warn users.🧰 Tools
🪛 Gitleaks (8.21.2)
102-102: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
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Review profile: CHILL
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pages/interop/tutorials/message-passing/_meta.json(1 hunks)pages/interop/tutorials/message-passing/relay-with-cast.mdx(1 hunks)
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📓 Path-based instructions (1)
`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with the following criteria: - First, check the frontmatter section at the top of the file: 1. For regular pages, ensure AL...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- First, check the frontmatter section at the top of the file:
- For regular pages, ensure ALL these fields are present and not empty:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] personas: [non-empty array] categories: [non-empty array] content_type: [valid type] ---
- For landing pages (index.mdx or files with ), only these fields are required:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] ---
- If any required fields are missing or empty, comment:
'This file appears to be missing required metadata. Please check keywords.config.yaml for valid options and add the required fields manually. You can validate your changes by running:pnpm validate-metadata ```'- 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/interop/tutorials/message-passing/relay-with-cast.mdx
🪛 LanguageTool
pages/interop/tutorials/message-passing/relay-with-cast.mdx
[uncategorized] ~188-~188: It appears that hyphens are missing.
Context: ...-chain messaging and prevent potential [denial of service attacks]((https://github.com/ethereum-o...
(DENIAL_OF_SERVICE_ATTACK)
🪛 Gitleaks (8.21.2)
pages/interop/tutorials/message-passing/relay-with-cast.mdx
102-102: 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 (6)
pages/interop/tutorials/message-passing/relay-with-cast.mdx (6)
49-50: Clarify conditional phrasing in learning objectives
The bullet reads:How to use
castto relay transactions with autorelay does not work
It should be:
How to usecastto relay transactions when autorelay does not work
60-62: Sentence case for H2 header
The header “What You’ll Build” should use sentence case:- ### What You’ll Build + ### What you'll build
111-112: Fix duplicated wording in explanation
The sentence is redundant:The greeter addresses are the same because the nonce for the user address' nonce is the same.
Consider revising to:- The greeter addresses are the same because the nonce for the user address' nonce is the same. + The greeter addresses are identical because the user address has the same nonce on both chains.
124-126: Avoid personal pronouns
Replace “Here we look for those messages, but get only the last one.” with an imperative description, e.g.:- Here we look for those messages, but get only the last one. + Extract only the latest `SendMessage` event from the logs.
188-188: Hyphenate compound adjective
Change “[denial of service attacks]” to “[denial-of-service attacks]”:- prevent potential [denial of service attacks](https://github.com/…) + prevent potential [denial-of-service attacks](https://github.com/…)🧰 Tools
🪛 LanguageTool
[uncategorized] ~188-~188: It appears that hyphens are missing.
Context: ...-chain messaging and prevent potential [denial of service attacks](https://github.com/ethereum-op...(DENIAL_OF_SERVICE_ATTACK)
195-195: Fix comma splice
The sentence contains two independent clauses joined by a comma. Consider:- In contrast, the `admin_getAccessListByMsgHash` RPC call is not a pure function, it is dependent on system state and therefore less flexible in these situations. + In contrast, the `admin_getAccessListByMsgHash` RPC call is not a pure function; it depends on system state and is therefore less flexible in these situations.
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pages/interop/tutorials/message-passing/_meta.json(1 hunks)pages/interop/tutorials/message-passing/relay-with-cast.mdx(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- pages/interop/tutorials/message-passing/_meta.json
🧰 Additional context used
📓 Path-based instructions (1)
`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with the following criteria: - First, check the frontmatter section at the top of the file: 1. For regular pages, ensure AL...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- First, check the frontmatter section at the top of the file:
- For regular pages, ensure ALL these fields are present and not empty:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] personas: [non-empty array] categories: [non-empty array] content_type: [valid type] ---
- For landing pages (index.mdx or files with ), only these fields are required:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] ---
- If any required fields are missing or empty, comment:
'This file appears to be missing required metadata. Please check keywords.config.yaml for valid options and add the required fields manually. You can validate your changes by running:pnpm validate-metadata ```'- 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/interop/tutorials/message-passing/relay-with-cast.mdx
🪛 LanguageTool
pages/interop/tutorials/message-passing/relay-with-cast.mdx
[uncategorized] ~188-~188: It appears that hyphens are missing.
Context: ...-chain messaging and prevent potential [denial of service attacks](https://github.com/ethereum-op...
(DENIAL_OF_SERVICE_ATTACK)
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: pr-workflow
🔇 Additional comments (4)
pages/interop/tutorials/message-passing/relay-with-cast.mdx (4)
1-22: Frontmatter completeness and validity
All required metadata fields (title, lang, description, topic, personas, categories, content_type) are present and non-empty. Thecontent_type: tutorialis valid.
24-28: Import statements
Component imports (Callout,Steps,InteropCallout,AutorelayCallout) are correct and aligned with project conventions.
29-31: H1 header consistency
The H1 (“Relay transactions manually”) matches the frontmatter title and follows sentence case rules.
35-38: Overview section clarity
The overview succinctly describes the tutorial’s purpose and aligns with the title.
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Actionable comments posted: 0
🧹 Nitpick comments (5)
pages/interop/tutorials/message-passing/relay-with-cast.mdx (5)
24-25: Remove unused import
Calloutis imported fromnextra/componentsbut not used in this file. Consider removing the import to clean up dead code.
60-63: Heading case: sentence case
The heading "What you'll Build" should use sentence case for consistency. Consider changing to "What you'll build".
102-102: Clarify test private key usage
The tutorial includes a hardcoded private key (0xac0974...). Please clarify that this key is a default local testing key (e.g., Foundry’s Anvil) and should not be used in production environments.🧰 Tools
🪛 Gitleaks (8.21.2)
102-102: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
148-151: Consider usingjqfor JSON parsing
The shell pipeline usesgrep,awk, andsedto parse the log-entry. For improved reliability, you might leveragejqto extracttopicsdirectly:-TOPICS=`cat log-entry | grep -A4 topics | awk '{print $1}' | tail -4 | sed 's/0x//'` -TOPICS=`echo $TOPICS | sed 's/ //g'` +TOPICS=$(jq -r '.topics[]' log-entry | sed 's/0x//g' | tr -d '\n')
193-196: Improve sentence clarity
The comparison sentence could be split for readability:- In contrast, the `admin_getAccessListByMsgHash` RPC call is not a pure function, it is dependent on system state and therefore less flexible in these situations. + In contrast, the `admin_getAccessListByMsgHash` RPC call is not a pure function. It is dependent on system state and therefore less flexible in these situations.
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pages/interop/tutorials/message-passing/relay-with-cast.mdx(1 hunks)
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`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with the following criteria: - First, check the frontmatter section at the top of the file: 1. For regular pages, ensure AL...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- First, check the frontmatter section at the top of the file:
- For regular pages, ensure ALL these fields are present and not empty:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] personas: [non-empty array] categories: [non-empty array] content_type: [valid type] ---
- For landing pages (index.mdx or files with ), only these fields are required:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] ---
- If any required fields are missing or empty, comment:
'This file appears to be missing required metadata. Please check keywords.config.yaml for valid options and add the required fields manually. You can validate your changes by running:pnpm validate-metadata ```'- 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/interop/tutorials/message-passing/relay-with-cast.mdx
🪛 Gitleaks (8.21.2)
pages/interop/tutorials/message-passing/relay-with-cast.mdx
102-102: 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/interop/tutorials/message-passing/relay-with-cast.mdx (21)
1-22: Metadata verification
Frontmatter is complete and includes all required fields (title,lang,description,topic,personas,categories,content_type). No missing metadata.
29-34: H1 consistency with frontmatter
The H1 (# Relay transactions manually) matches thetitlein frontmatter and correctly reflects the tutorial purpose.
35-38: Overview section clarity
The overview succinctly describes the tutorial's goal. The heading and content use proper sentence case and maintain consistency in tone.
39-58: Prerequisites and requirements
The "About this tutorial" section effectively outlines prerequisites and environment requirements. Headings use sentence case and content is clear and concise.
64-88: Setup instructions clarity
The setup steps are well-structured using<Steps>and provide clear instructions for initializing Supersim and preparing the state. Links and commands are correctly formatted.
92-96: Verify tutorial script path
The script reference./manual-relay/sendAndRelay.shshould correspond to the actual repository path. Please ensure this path is accurate or provide the correct relative path to the tutorial script.
98-109: Explanation section structure
The "Explanation" heading and configuration block clearly introduce the script variables. The notes about the greeter addresses are helpful.🧰 Tools
🪛 Gitleaks (8.21.2)
102-102: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
114-116: Command syntax for sending message
Thecast sendcommand is configured correctly with flags and placeholders. The use of$$to reference the process ID is well explained.
120-122: Extracting log entry
Usingcast logspiped totailfor log extraction is clear and works as intended.
124-126: Event extraction explanation
The explanation of usingSentMessageevent emission and extracting the latest event is clear and references the official contract source.
127-146: Example log-entry display
The YAML snippet in the<details>block accurately represents the structure of aSentMessagelog entry. Code fencing and indentation are correct.
152-154: Explanation of topic consolidation
The guidance on consolidating log topics into a single hex string is clear and correctly describes the purpose.
155-162: Reading log entry fields
The extraction oforigin,blockNumber,logIndex,timestamp, andchainIdfrom the log entry is well-documented and uses appropriate commands.
167-167: Consolidating full log entry
The assembly ofLOG_ENTRYby concatenatingTOPICSand message data is correct.
172-183: RPC parameters construction
The use of a here-document to buildRPC_PARAMSJSON is clear and correctly formatted for the subsequent RPC call.
185-185: Access list retrieval
Thecast rpc admin_getAccessListForIdentifierinvocation correctly retrieves the access list, and piping tojq .accessListis appropriate.
188-190: Security explanation clarity
The explanation of how access lists prevent denial-of-service attacks is accurate, with proper hyphenation and a valid link to the design doc.
197-200: Pre-relay greeting check
Theechoandcast call greet()steps correctly show the state before relaying.
205-207: Relay transaction command
Thecast sendinvocation forrelayMessageis correctly constructed with parameters, access list, RPC URL, and private key.
211-214: Post-relay greeting verification
The final greeting check is clear and validates successful relay.
219-224: Next steps suggestions
The "Next steps" section provides logical follow-up resources and encourages further exploration.
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Actionable comments posted: 1
🧹 Nitpick comments (4)
pages/interop/tutorials/message-passing/relay-with-cast.mdx (4)
24-28: Combine duplicate imports for clarity. You can merge the twonextra/componentsimports into one statement:-import { Callout } from 'nextra/components' -import { Steps } from 'nextra/components' +import { Callout, Steps } from 'nextra/components'
101-101: Standardize the shebang line. Remove the space after#!to adhere to the conventional format:- #! /bin/sh + #!/bin/sh
185-185: Use a variable for the Supersim RPC endpoint. Instead of hardcodinghttp://localhost:8420, introduce an environment variable (e.g.,SUPERSIM_RPC_URL) for consistency and flexibility:- ACCESS_LIST=`cast rpc admin_getAccessListForIdentifier --rpc-url http://localhost:8420 "$RPC_PARAMS" | jq .accessList` + ACCESS_LIST=`cast rpc admin_getAccessListForIdentifier --rpc-url $SUPERSIM_RPC_URL "$RPC_PARAMS" | jq .accessList`
195-195: Refine sentence structure to avoid comma splice. Split the sentence for improved readability:- In contrast, the `admin_getAccessListByMsgHash` RPC call is not a pure function, it is dependent on system state and therefore less flexible in these situations. + In contrast, the `admin_getAccessListByMsgHash` RPC call is not a pure function. It depends on system state and is therefore less flexible in these situations.
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📒 Files selected for processing (1)
pages/interop/tutorials/message-passing/relay-with-cast.mdx(1 hunks)
🧰 Additional context used
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`**/*.mdx`: "ALWAYS review Markdown content THOROUGHLY with the following criteria: - First, check the frontmatter section at the top of the file: 1. For regular pages, ensure AL...
**/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- First, check the frontmatter section at the top of the file:
- For regular pages, ensure ALL these fields are present and not empty:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] personas: [non-empty array] categories: [non-empty array] content_type: [valid type] ---
- For landing pages (index.mdx or files with ), only these fields are required:
--- title: [non-empty] lang: [non-empty] description: [non-empty] topic: [non-empty] ---
- If any required fields are missing or empty, comment:
'This file appears to be missing required metadata. Please check keywords.config.yaml for valid options and add the required fields manually. You can validate your changes by running:pnpm validate-metadata ```'- 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/interop/tutorials/message-passing/relay-with-cast.mdx
🪛 Gitleaks (8.26.0)
pages/interop/tutorials/message-passing/relay-with-cast.mdx
102-102: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
🔇 Additional comments (1)
pages/interop/tutorials/message-passing/relay-with-cast.mdx (1)
1-22: Frontmatter metadata is complete and valid. All required fields (title,lang,description,topic,personas,categories,content_type) are present and correctly populated, aligning with the documentation conventions.
3 participants
Description
A separate tutorial because this is a rare edge case.
Tests
N/A
Additional context
Remove https://docs.optimism.io/interop/tutorials/relay-messages-cast and https://docs.optimism.io/interop/tutorials/relay-messages-viem because they are redundant.
After #1581 is merged, it would be a good idea to move https://docs.optimism.io/interop/tutorials/message-passing#implement-manual-message-relaying to the same place as the
casttutorial - they are very similar.Metadata
N/A