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- Updated words.txt to include 'failovers', 'Flashblock', 'flashblocks', and 'rbuilder'. - Added a new card for 'Flashblocks' in transactions.mdx. - Updated _meta.json to include 'flashblocks' for better documentation navigation.
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📝 WalkthroughWalkthroughAdds a new Flashblocks documentation section and navigation. Updates pages/stack/transactions.mdx to include a “Flashblocks” card linking to /stack/transactions/flashblocks. Creates pages/stack/transactions/flashblocks.mdx as a hub with links to Overview and Block Building subpages. Adds two new MDX docs: overview.mdx (concepts and developer usage) and flashblocks/block-building.mdx (timing, coordination, failover, FAQ, technical notes). Introduces metadata files: pages/stack/transactions/_meta.json (adds “flashblocks”) and pages/stack/transactions/flashblocks/_meta.json (labels for subpages). Updates words.txt with “Flashblock” and “flashblocks”. No runtime or API changes. Estimated code review effort🎯 2 (Simple) | ⏱️ ~8 minutes Possibly related PRs
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Actionable comments posted: 1
🧹 Nitpick comments (15)
words.txt (1)
136-139: Add lowercase singular for completenessYou added “Flashblock” (singular, capitalized) and “flashblocks” (lowercase plural). Consider also adding the lowercase singular “flashblock” so spellchecks don’t flag it when used mid-sentence.
Apply this diff:
Flashblock Flashblocks flashblocks +flashblock Flashbotspages/stack/transactions/flashblocks/block-building.mdx (7)
20-25: Use sentence case in H2; fix unit spacing
- Headers should use sentence case per guidelines.
- Standardize unit formatting to use a space (ms).
Apply this diff:
-## How Flashblocks Work in OP Stack +## How Flashblocks work in OP Stack @@ -OP Stack normally produces a block every 1 to 2 seconds. Flashblocks break that time window into smaller chunks. For example, eight 250ms pieces inside a 2-second block. +OP Stack normally produces a block every 1 to 2 seconds. Flashblocks break that time window into smaller chunks. For example, eight 250 ms pieces inside a 2-second block.
30-30: Hyphenate “2-second” as a compound modifierMaintain consistency with earlier usage and standard style.
Apply this diff:
-The default target interval is 200 ms, though some deployments use 250 ms. A 2 second block at 200 ms produces 10 Flashblocks. Ordering is append-only within the block window: once a Flashblock is emitted, later Flashblocks cannot reorder its contents. +The default target interval is 200 ms, though some deployments use 250 ms. A 2-second block at 200 ms produces 10 Flashblocks. Ordering is append-only within the block window: once a Flashblock is emitted, later Flashblocks cannot reorder its contents.
44-44: Use sentence case in H3Headers should be sentence case.
Apply this diff:
-### Block Building and Timing +### Block building and timing
48-49: Hyphenate “2-second” in FAQ answerMatch style and earlier usage.
Apply this diff:
- Default target interval is 200 ms, though some deployments use 250 ms. A 2 second block at 200 ms produces 10 Flashblocks. + Default target interval is 200 ms, though some deployments use 250 ms. A 2-second block at 200 ms produces 10 Flashblocks.
61-61: Use sentence case in H3Apply this diff:
-### High Availability and Safety +### High availability and safety
83-83: Use sentence case in H3Apply this diff:
-### Pre-confirmations and Reorgs +### Pre-confirmations and reorgs
100-100: Use sentence case in H3Apply this diff:
-### Technical Implementation +### Technical implementationpages/stack/transactions/flashblocks/index.mdx (7)
15-15: Use a YAML boolean for is_imported_content (or remove if unused).Quoted 'false' is a string, not a boolean. Prefer an unquoted boolean for consistency with YAML conventions.
-is_imported_content: 'false' +is_imported_content: false
3-3: Hyphenate “sub-blocks” and tighten the numeric range formatting.Align terminology and style within the doc.
-description: Flashblocks provide near-instant pre-confirmations on OP Stack chains through logical sub blocks built at 200 to 250 ms intervals. +description: Flashblocks provide near-instant pre-confirmations on OP Stack chains through logical sub-blocks built at 200–250 ms intervals.
20-20: Use a space between the number and unit (ms) for consistency.Follow consistent unit formatting across the page.
-Flashblocks enable OP Stack to produce logical sub-blocks of transactions at a much higher frequency (every 250ms) compared to the standard 2-second block time. This gives users the impression of near-instant inclusion and execution. +Flashblocks enable OP Stack to produce logical sub-blocks of transactions at a much higher frequency (every 250 ms) compared to the standard 2-second block time. This gives users the impression of near-instant inclusion and execution.-Flashblocks divide each 2-second block into 8 sub-blocks, allowing transactions to be processed and pre-confirmed at 250ms intervals. +Flashblocks divide each 2-second block into 8 sub-blocks, allowing transactions to be processed and pre-confirmed at 250 ms intervals.Also applies to: 24-24
22-23: Avoid first-person voice; use neutral phrasing.Replace “we”/“our” with neutral or product-centric language per docs style.
-Since we operate in a Layer 2 environment where consensus finality isn't a hard requirement, we can offer these fast, highly reliable confirmations. +Because OP Stack chains operate in a Layer 2 environment, they can offer fast, highly reliable pre-confirmations.
34-34: Remove trailing colon from the header.Headers should not end with punctuation.
-### Supported methods and behavior with `pending`: +### Supported methods and behavior with `pending`
36-41: Avoid bold for emphasis; keep method names in code formatting only.This follows the guideline to avoid emphasis styling like bold.
-* **`eth_getTransactionReceipt`**: returns a receipt for pre-confirmed transactions from the cache. Some fields are placeholders at pre-confirmation time. -* **`eth_getBlockByNumber`**: use `"pending"` to retrieve the latest Flashblock view. Responses are append-only within the block window and include cumulative fields like `stateRoot` and `receiptsRoot`. -* **`eth_getBalance`**, **`eth_getTransactionCount`**: return values from `AccountMetadata` if present. -* **`eth_getCode`**: returns contract bytecode from the cache if created in the Flashblock stream. -* **`eth_getStorageAt`**: returns values from `storage_slots` in the cache. -* **`eth_call`**: executes the call on top of the pre-confirmation overlay. +* `eth_getTransactionReceipt`: returns a receipt for pre-confirmed transactions from the cache. Some fields are placeholders at pre-confirmation time. +* `eth_getBlockByNumber`: use `"pending"` to retrieve the latest Flashblock view. Responses are append-only within the block window and include cumulative fields like `stateRoot` and `receiptsRoot`. +* `eth_getBalance`, `eth_getTransactionCount`: return values from `AccountMetadata` if present. +* `eth_getCode`: returns contract bytecode from the cache if created in the Flashblock stream. +* `eth_getStorageAt`: returns values from `storage_slots` in the cache. +* `eth_call`: executes the call on top of the pre-confirmation overlay.
42-42: Add a cross-link to the deep dive.Help readers discover the detailed block-building page from here.
+ +## See also + +- Block building details: [/stack/transactions/flashblocks/block-building](/stack/transactions/flashblocks/block-building)
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pages/stack/transactions.mdx(1 hunks)pages/stack/transactions/_meta.json(1 hunks)pages/stack/transactions/flashblocks/_meta.json(1 hunks)pages/stack/transactions/flashblocks/block-building.mdx(1 hunks)pages/stack/transactions/flashblocks/index.mdx(1 hunks)words.txt(1 hunks)
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**/*.mdx
⚙️ CodeRabbit Configuration File
**/*.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] ---
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'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).
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- 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.
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- Flag any headers that seem to inconsistently apply these rules for manual review.
- When rev...
Files:
pages/stack/transactions.mdxpages/stack/transactions/flashblocks/block-building.mdxpages/stack/transactions/flashblocks/index.mdx
🪛 LanguageTool
pages/stack/transactions/flashblocks/block-building.mdx
[grammar] ~22-~22: Ensure spelling is correct
Context: ...into smaller chunks. For example, eight 250ms pieces inside a 2-second block. Instea...
(QB_NEW_EN_ORTHOGRAPHY_ERROR_IDS_1)
pages/stack/transactions/flashblocks/index.mdx
[grammar] ~24-~24: Ensure spelling is correct
Context: ...ns to be processed and pre-confirmed at 250ms intervals. Think of Flashblocks like s...
(QB_NEW_EN_ORTHOGRAPHY_ERROR_IDS_1)
words.txt
[duplication] ~136-~136: Možný preklep: zopakovali ste slovo
Context: ...r Faultproof FDLIMIT fdlimit Flashblock Flashblocks flashblocks Flashbots forkable forkchoice FPVM FPVM...
(WORD_REPEAT_RULE)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (3)
- GitHub Check: Redirect rules - docs-optimism
- GitHub Check: Header rules - docs-optimism
- GitHub Check: Pages changed - docs-optimism
🔇 Additional comments (5)
pages/stack/transactions.mdx (1)
46-47: Flashblocks card addition looks goodTitle casing is correct, and the href matches the new section path. No issues.
pages/stack/transactions/flashblocks/_meta.json (1)
1-4: Meta entries align with new pagesKeys map to the new overview and block building pages as expected. LGTM.
pages/stack/transactions/_meta.json (1)
8-9: New navigation label looks correctThe “flashblocks” entry is properly added and matches the new route. No further changes needed.
pages/stack/transactions/flashblocks/block-building.mdx (1)
1-14: Frontmatter meets required fields for a regular pageAll required metadata fields are present and non-empty: title, lang, description, topic, personas, categories, and content_type. Good to ship.
pages/stack/transactions/flashblocks/index.mdx (1)
1-16: Frontmatter looks complete and valid.All required fields for a regular page are present and non-empty: title, lang, description, topic, personas, categories, and content_type.
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🧹 Nitpick comments (3)
pages/stack/transactions/flashblocks.mdx (3)
7-7: Use sentence case for H1Update the heading to sentence case.
-# Flashblocks Navigation +# Flashblocks navigation
9-11: Prefer imperative mood in callout textTighten the language and use the imperative form.
- This is a navigation page for the Flashblocks section. + Use this page to navigate the Flashblocks section.
13-14: Align link text with sentence caseUse sentence case for link labels to match style guidelines.
-* [Flashblocks Overview](/stack/transactions/flashblocks) -* [Block Building](/stack/transactions/flashblocks/block-building) +* [Flashblocks overview](/stack/transactions/flashblocks) +* [Block building](/stack/transactions/flashblocks/block-building)
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**/*.mdx
⚙️ CodeRabbit Configuration File
**/*.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 rev...
Files:
pages/stack/transactions/flashblocks.mdx
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (3)
- GitHub Check: Redirect rules - docs-optimism
- GitHub Check: Header rules - docs-optimism
- GitHub Check: Pages changed - docs-optimism
- Replaced the navigation structure with a card layout for better accessibility. - Updated the _meta.json file to reflect changes in the documentation structure. - Removed the outdated index.mdx file to streamline content.
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Actionable comments posted: 0
🧹 Nitpick comments (7)
pages/stack/transactions/flashblocks/block-building.mdx (4)
20-20: Use sentence case for H2 headers.Apply sentence case per guidelines.
-## How Flashblocks Work in OP Stack +## How Flashblocks work in OP Stack
22-23: Standardize unit formatting (ms) and hyphenation for “2-second”.Use a space between the number and unit (e.g., “250 ms”), and hyphenate “2-second” when used adjectivally. This also addresses the linter hint.
-OP Stack normally produces a block every 1 to 2 seconds. Flashblocks break that time window into smaller chunks. For example, eight 250ms pieces inside a 2-second block. +OP Stack normally produces a block every 1 to 2 seconds. Flashblocks break that time window into smaller chunks. For example, eight 250 ms pieces inside a 2-second block.-The default target interval is 200 ms, though some deployments use 250 ms. A 2 second block at 200 ms produces 10 Flashblocks. Ordering is append-only within the block window: once a Flashblock is emitted, later Flashblocks cannot reorder its contents. +The default target interval is 200 ms, though some deployments use 250 ms. A 2-second block at 200 ms produces 10 Flashblocks. Ordering is append-only within the block window: once a Flashblock is emitted, later Flashblocks cannot reorder its contents.- Default target interval is 200 ms, though some deployments use 250 ms. A 2 second block at 200 ms produces 10 Flashblocks. + Default target interval is 200 ms, though some deployments use 250 ms. A 2-second block at 200 ms produces 10 Flashblocks.Also applies to: 30-30, 48-49
26-27: Confirm product naming/style for “rollup-boost.”Validate whether “rollup-boost” should be capitalized or styled as a proper noun (e.g., “Rollup Boost”) to match project nomenclature, or formatted as code if it’s a binary name. Align with nouns.txt and existing docs for consistency.
44-45: Use sentence case for H3 headers.Adjust H3 headers to sentence case per guidelines.
-### Block Building and Timing +### Block building and timing-### High Availability and Safety +### High availability and safety-### Pre-confirmations and Reorgs +### Pre-confirmations and reorgsAlso applies to: 61-63, 83-84
pages/stack/transactions/flashblocks/overview.mdx (3)
3-3: Hyphenate “sub-blocks” in description.Use “sub-blocks” for consistency with the body text and style.
-description: Flashblocks provide near-instant pre-confirmations on OP Stack chains through logical sub blocks built at 200 to 250 ms intervals. +description: Flashblocks provide near-instant pre-confirmations on OP Stack chains through logical sub-blocks built at 200 to 250 ms intervals.
20-25: Avoid first-person pronouns and standardize unit formatting.Per guidelines, avoid “we” and “our.” Also, insert a space in “250 ms.”
-Flashblocks enable OP Stack to produce logical sub-blocks of transactions at a much higher frequency (every 250ms) compared to the standard 2-second block time. This gives users the impression of near-instant inclusion and execution. +Flashblocks enable OP Stack to produce logical sub-blocks of transactions at a much higher frequency (every 250 ms) compared to the standard 2-second block time. This gives users the impression of near-instant inclusion and execution.-They work by offering pre-confirmations, which are early signals that a transaction will likely be included well before final block production. Since we operate in a Layer 2 environment where consensus finality isn't a hard requirement, we can offer these fast, highly reliable confirmations. +They work by offering pre-confirmations, which are early signals that a transaction will likely be included well before final block production. Because OP Stack operates in a Layer 2 environment where consensus finality is not a hard requirement, the system can offer fast, highly reliable confirmations.-Flashblocks divide each 2-second block into 8 sub-blocks, allowing transactions to be processed and pre-confirmed at 250ms intervals. +Flashblocks divide each 2-second block into 8 sub-blocks, allowing transactions to be processed and pre-confirmed at 250 ms intervals.
30-33: Minor clarity tweak (optional).Consider “latest Flashblock view” to be explicit that it is a view of the pending block.
-For example, calling `eth_getBlockByNumber("pending")` will return a block that includes all the transactions processed in the latest Flashblock, even though the final block hasn't been created yet. +For example, calling `eth_getBlockByNumber("pending")` returns a block that includes all transactions processed in the latest Flashblock view, even though the final block has not been created yet.
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
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💡 Knowledge Base configuration:
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📒 Files selected for processing (4)
pages/stack/transactions/flashblocks.mdx(1 hunks)pages/stack/transactions/flashblocks/_meta.json(1 hunks)pages/stack/transactions/flashblocks/block-building.mdx(1 hunks)pages/stack/transactions/flashblocks/overview.mdx(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (2)
- pages/stack/transactions/flashblocks/_meta.json
- pages/stack/transactions/flashblocks.mdx
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📓 Path-based instructions (1)
**/*.mdx
⚙️ CodeRabbit Configuration File
**/*.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 rev...
Files:
pages/stack/transactions/flashblocks/block-building.mdxpages/stack/transactions/flashblocks/overview.mdx
🪛 LanguageTool
pages/stack/transactions/flashblocks/block-building.mdx
[grammar] ~22-~22: Ensure spelling is correct
Context: ...into smaller chunks. For example, eight 250ms pieces inside a 2-second block. Instea...
(QB_NEW_EN_ORTHOGRAPHY_ERROR_IDS_1)
pages/stack/transactions/flashblocks/overview.mdx
[grammar] ~24-~24: Ensure spelling is correct
Context: ...ns to be processed and pre-confirmed at 250ms intervals. Think of Flashblocks like s...
(QB_NEW_EN_ORTHOGRAPHY_ERROR_IDS_1)
🔇 Additional comments (2)
pages/stack/transactions/flashblocks/block-building.mdx (1)
1-14: Metadata is complete and meets guidelines.All required frontmatter fields are present and non-empty for a regular page. No action needed.
pages/stack/transactions/flashblocks/overview.mdx (1)
1-16: Metadata is complete and meets guidelines.All required frontmatter fields are present and non-empty for a regular page. No action needed.
- Introduced new Flashblocks guide and technical documentation for chain operators. - Updated _meta.json files to include new terms and features related to Flashblocks. - Removed outdated references to Flashblocks in transaction metadata.
- Renamed the Flashblocks guide link for clarity and consistency. - Removed the outdated Flashblocks guide file and updated references to point to the new location. - Enhanced links to the Flashblocks specification for better accessibility and accuracy.
2 participants
Description
Adds comprehensive documentation for Flashblocks, a new feature that enables sub-second transaction confirmations on OP Stack.
Key Additions
This documentation helps developers integrate Flashblocks for faster UX and guides operators in deploying and maintaining the feature.
Tests
Additional context
Metadata