docs: more specs (#1811) #1814
docs: more specs (#1811) #1814
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WalkthroughThis update introduces a wide array of new features, architectural enhancements, and documentation improvements to an EVM implementation. Key additions include detailed specifications and code for EIP-4844 (blob transactions), EIP-7702 (delegation), EOF (EVM Object Format) support, custom chain frameworks, consensus test suite integration, comprehensive edge case and DoS protection, call frame pooling, cache optimization, bundle state management, branch prediction, async database support, CLI tools, and extensive reference implementations for critical EVM operations and precompiles. Numerous new structs, enums, and methods are defined to support these capabilities. Changes
Sequence Diagram(s)Example: EIP-7702 Delegated Execution FlowsequenceDiagram
participant User
participant VM
participant State
participant DelegationManager
participant Contract
User->>VM: Submit SetCodeTransaction (with authorization)
VM->>DelegationManager: process_authorization(auth_tuple)
DelegationManager->>State: set authorization_nonce, set delegation designation code
VM->>State: get_effective_code_address(account)
alt Delegated
State->>Contract: Fetch delegated code
else Not delegated
State->>Contract: Fetch original code
end
VM->>Contract: Execute code
Contract-->>VM: Return result
VM-->>User: Transaction result
Example: Bundle State Management (Simplified)sequenceDiagram
participant VM
participant StateBundleManager
participant State
VM->>StateBundleManager: create_bundle()
StateBundleManager->>StateBundle: init()
VM->>StateBundleManager: set_account_bundled(addr, data)
StateBundleManager->>StateBundle: record account change
VM->>StateBundleManager: commit_bundle(bundle_id)
StateBundleManager->>State: apply_to_state(changes)
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Actionable comments posted: 24
🔭 Outside diff range comments (5)
src/evm/prompts/implement-complete-call-operations.md (5)
89-119:⚠️ Potential issueCheck underflow before gas forwarding.
calculate_call_gascomputescalculate_63_64_gas(remaining_gas - gas_cost)without guarding againstgas_cost > remaining_gas, causing underflow. Early-returnOutOfGasifgas_cost >= remaining_gasto prevent wraparound.
157-223:⚠️ Potential issueMissing gas consumption for memory expansion.
op_callcomputesmemory_expansionbut never deducts its cost viaconsume_gas. Inserttry interpreter.consume_gas(memory_expansion.cost)after memory expansion to accurately charge gas.
227-247:⚠️ Potential issue
op_delegatecallis a stub.
The delegatecall handler omits stack pops, gas checks, memory expansion, and OutOfGas handling. Flesh out this opcode by mirroringop_calland adjusting for delegate semantics.
251-271:⚠️ Potential issue
op_staticcallis incomplete.
Staticcall implementation lacks parameter popping, gas calculation, and static-mode enforcement. Complete this function before merging.
309-337:⚠️ Potential issueReturn-data opcodes undercharge gas.
op_returndatasize/op_returndatacopydon’t callconsume_gasorgas!(). Add base and memory-expansion charges to prevent gas exploits.
🧹 Nitpick comments (40)
src/evm/prompts/implement-complete-eip4844-support.md (5)
5-10: Consolidate Git workflow instructions
The Git workflow steps are comprehensive but repetitive across PRs. Consider extracting this into a centralized CONTRIBUTING guide and linking to it to reduce duplication and maintenance overhead.
59-69: Clarify Zig range semantics
The loopfor (0..FIELD_ELEMENTS_PER_BLOB) |i|relies on exclusive upper bound behavior. Adding a brief comment or usingstd.rangehelpers can clarify intent and prevent off-by-one mistakes.
74-93: Specify KZG verification integration
The placeholder implementation returns a byte equality check. Document the external library or interface contract for real KZG ver 8000 ification and clearly mark error paths to guide future integration.
99-125: Document rounding semantics in fee calculation
The integer divisions incalculate_blob_base_feeimply floor rounding. Explicitly state in the spec whether to round up, down, or use a minimum increment to ensure consistent cross-language implementations.
157-198: Refactor nested validation for readability
Thevalidate_blob_transactionfunction deeply nests conditionals. Flatten the logic with early returns or helper methods to improve clarity and maintainability.src/evm/prompts/implement-consensus-test-suite.md (6)
3-17: Extract common workflow steps
These branch setup and commit guidelines mirror those in other prompt files. Consider referencing a shared development guide instead of duplicating steps in each spec doc.
28-52: Clarify fork key usage in StateTests
postis defined as aHashMapkeyed by fork names. Document the expected fork name values, casing, and handling of JSON order to avoid mismatches during test loading.
87-139: Split large struct definitions
TheBlockchainTestDatastruct spans many fields. For readability and maintainability, consider moving this definition to a separate file (e.g.,blockchain_test_data.zig) or referencing an external schema.
174-234: Make test discovery patterns configurable
Skipping directories likesrc,VMTests, andLegacyTestsis hardcoded. Expose these patterns inTestConfigor document them clearly to accommodate future test suite structure changes.
371-419: Improve JSON parse error handling
On parse failures,run_state_testsincrementsfailedbut continues. Consider supporting a--fail-fastflag or capturing parse error details in the summary to aid debugging.
787-874: Leverage a CLI parsing library
Manual flag parsing incli.zigcan be simplified using Zig's standard flags parser or a dedicated CLI library. This will reduce boilerplate and automatically generate help messages.scripts/gemini.ts (2)
5-7: Use Node.js import protocol for built-in modules.Node.js built-in modules should be imported with the
node:protocol for better clarity and explicit indication that these are Node.js modules.-import { readFileSync, writeFileSync } from "fs"; -import { join } from "path"; -import { stdin } from "process"; +import { readFileSync, writeFileSync } from "node:fs"; +import { join } from "node:path"; +import { stdin } from "node:process";🧰 Tools
🪛 Biome (1.9.4)
[error] 5-5: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.(lint/style/useNodejsImportProtocol)
[error] 6-6: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.(lint/style/useNodejsImportProtocol)
[error] 7-7: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.(lint/style/useNodejsImportProtocol)
29-43: Remove commented-out code.The commented-out code block for handling command line arguments is no longer needed since the script now uses file-based input. Consider removing it for cleaner code.
- /* - // Get prompt from command line argument or stdin - if (process.argv[2]) { - prompt = process.argv.slice(2).join(' '); - } else { - console.log("Enter your prompt (press Ctrl+D when finished):"); - - // Read from stdin - let input = ""; - for await (const chunk of stdin) { - input += chunk; - } - prompt = input.trim(); - } - */src/evm/prompts/implement-blake2f-precompile.md (1)
50-125: Excellent reference implementation with formatting fix needed.The geth reference implementation provides comprehensive guidance for BLAKE2F precompile implementation, demonstrating proper gas calculation, input validation, endianness handling, and compression function usage. However, the code blocks use hard tabs instead of spaces.
Please replace hard tabs with spaces in the code blocks to comply with markdown formatting standards. Most editors can be configured to show whitespace characters to help identify tabs.
🧰 Tools
🪛 markdownlint-cli2 (0.17.2)
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scripts/notes.md (1)
1-58: Comprehensive refactoring guidance with minor formatting improvements needed.This documentation provides excellent systematic guidance for the idiomatic Zig refactoring task, covering task scope, language features, expert principles, and specific patterns to apply.
Please address these minor formatting issues for better readability:
-2. Create markdown todo list of every file in evm package +2. Create markdown to-do list of every file in evm package -Standard library: https://ziglang.org/documentation/master/std/ -Language docs: https://ziglang.org/documentation/master/ +Standard library: [Zig Standard Library](https://ziglang.org/documentation/master/std/) +Language docs: [Zig Language Documentation](https://ziglang.org/documentation/master/) -### General Principles Applied: +### General Principles Applied -### Key Patterns to Apply: +### Key Patterns to Apply🧰 Tools
🪛 LanguageTool
[grammar] ~11-~11: It appears that a hyphen is missing in the noun “to-do” (= task) or did you mean the verb “to do”?
Context: ...o understand project 2. Create markdown todo list of every file in evm package 3. Fo...(TO_DO_HYPHEN)
🪛 markdownlint-cli2 (0.17.2)
19-19: Bare URL used
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src/evm/prompts/implement-comprehensive-tracing.md (1)
39-46: Improve Markdown formatting and remove hard tabs
The new “Reference Implementations” section uses hard tabs (MD010). Replace them with spaces and swap the custom<explanation>tags for a standard blockquote or fenced code block with prose to maintain consistency with the rest of the doc.src/evm/prompts/implement-ecrecover-precompile.md (2)
52-56: Expand spec to cover EIP-155 v-value formats
The explanation highlights legacy (27/28) handling; please also call out EIP-155 v values (chain_id*2+35/36) in this narrative for completeness.
169-217: Ensure output buffer bounds are validated
Before@memcpy(output[12..32], &address.bytes), confirm thatoutput.len >= 32. The algorithm already checksoutput.len < 32, but consider documenting this precondition in comments or error messages for clarity.src/evm/prompts/implement-edge-case-handling.md (2)
27-33: Add language identifier to code fence
TheArithmeticEdgeCaseHandlersnippet is shown without a language tag. Please changeto
for proper syntax highlighting.
51-63: Merge overflow and underflow handlers into shared helper
Thehandle_addition_overflowandhandle_multiplication_overflowmethods have similar switch logic. Consider extracting the behavior switch into a private helper to reduce duplication and improve maintainability.src/evm/prompts/implement-branch-prediction-optimization.md (1)
36-88: Break out configuration into separate module.
TheBranchConfigvariants pack multiple tunables; consider extracting config thresholds into a dedicated constants or config file to improve maintainability and avoid magic numbers.src/evm/prompts/implement-complete-call-operations.md (2)
368-374: Duplicate reference entry.
The "Gas Cost Calculations" link is listed twice under References. Remove or merge duplicates to satisfy markdownlint (MD024).
342-354: Test spec needs concrete cases.
The test template lists only headings. Please add actual Zig test functions with assertions or let me know if you'd like me to scaffold them.src/evm/prompts/implement-async-database-support.md (1)
731-737: Thread spawn error handling is weak.
execute_query_asyncspawns threads but only signals the future on failure. Centralize task scheduling in a thread pool with back-pressure and logging for spawn failures.src/evm/prompts/implement-dos-protection.md (5)
5-9: Inconsistent branch and commit conventions.The branch naming guideline prohibits emojis in branch names, yet the commit message example includes
✨. Clarify or align these conventions to avoid confusion.
55-57: Use Markdown instead of HTML-like tags.The
<explanation>tag inside code blocks is unconventional in Markdown. Replace it with blockquotes or inline comments within fenced code blocks for better compatibility.
76-78: Remove<explanation>HTML tags.Under the evmone section, switch from
<explanation>to proper Markdown blockquotes to describe reference implementations.
100-100: Convert indented snippet to fenced code.There's an indented code snippet for
pub fn testnet()that should use fenced code syntax (e.g., ````zig```) for consistency and correct rendering.🧰 Tools
🪛 markdownlint-cli2 (0.17.2)
100-100: Code block style
Expected: fenced; Actual: indented(MD046, code-block-style)
164-164: Specify language in code fence.The code block around the
MemoryProtectorexample is missing a language identifier. Add the appropriate language (e.g.,zig) after the opening backticks.🧰 Tools
🪛 markdownlint-cli2 (0.17.2)
164-164: Fenced code blocks should have a language specified
null(MD040, fenced-code-language)
src/evm/prompts/implement-custom-chain-framework.md (2)
1-21: Split into focused modules for readability.This document spans multiple subsystems (chain definition, consensus rules, opcode registry). Consider breaking it into separate spec files (e.g.,
chain_definition.md,consensus_rules.md) to improve navigation and maintenance.
5-9: Clarify branch vs. commit guidelines.Branch setup forbids emojis in branch names, yet the commit example uses
🔧. Align these guidelines or provide rationale to prevent contributor confusion.src/evm/prompts/implement-bundle-state-management.md (3)
6-10: Inconsistent branch & commit guidelines
The instructions disallow emojis in branch names (“no emoji”) but the example commit message uses✨. Align the conventions—either allow emojis consistently or drop them from commit examples.
29-36: Thread-safety concerns
The spec doesn’t address concurrent access toactive_bundlesorbundle_stack. Recommend documenting how to synchronize or serialize bundle operations (e.g., a mutex or single-threaded executor) to avoid data races.
38-61: Clarify units inBundleConfig
Fields likemax_bundle_size(bytes) andmemory_pressure_threshold(fraction) need explicit units or comments for clarity. Consider using human‐readable constants (e.g.,64 * std.mem.MiB) or inline comments.src/evm/prompts/implement-eof-support.md (1)
6-10: Inconsistent emoji usage in Git instructions
The branch naming rule disallows emojis, yet the commit message example uses✨. Recommend unifying the policy: either permit emojis in both branches and commits or remove them entirely.src/evm/prompts/implement-cache-optimization.md (2)
6-9: Inconsistent branch vs. commit emoji policy
The branch naming guideline forbids emojis, yet the example commit message uses one (⚡). Please align these rules by either allowing emojis in commit messages or removing them from the example.
36-44: DRY violation in CacheConfig constructors
Theproduction(),development(), andtesting()functions duplicate most field assignments. Consider extracting shared defaults into a base config or using a builder to reduce repetition.src/evm/prompts/implement-cli-tools.md (3)
5-9: Inconsistent branch vs. commit emoji policy
Branch creation forbids emojis, but the commit message sample includes✨. Please unify the policy across branch and commit guidelines.
3-4: ACRONYM tautology
The phrase “CLI Interface” is redundant since “I” already stands for Interface. Please use “CLI tools” or just “CLI.”
1232-1240: Missing input validation inparse_hex_string
The parser omits checks for non-hex characters. Add validation to reject invalid input and avoid downstream errors.
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🧰 Additional context used
🪛 LanguageTool
scripts/notes.md
[grammar] ~11-~11: It appears that a hyphen is missing in the noun “to-do” (= task) or did you mean the verb “to do”?
Context: ...o understand project 2. Create markdown todo list of every file in evm package 3. Fo...
(TO_DO_HYPHEN)
src/evm/prompts/implement-eip7702-delegation.md
[uncategorized] ~20-~20: Possible missing comma found.
Context: ...y for review ## Context Implement EIP-7702 which allows Externally Owned Accounts ...
(AI_HYDRA_LEO_MISSING_COMMA)
[style] ~852-~852: Using “real” as an adverb is considered informal. Consider using “really” or “very”.
Context: ... 6. Integration testing - Test with real smart contracts ## References - [EIP-...
(REAL_REALLY)
scripts/response.md
[duplication] ~1-~1: Possible typo: you repeated a word.
Context: [object Object]Okay, I understand. Here's a comprehens...
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src/evm/prompts/implement-consensus-test-suite.md
[grammar] ~20-~20: The verb ‘reporting’ is used with the gerund form.
Context: ...utomated test discovery, execution, and reporting to catch any regressions or compatibility issues...
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[style] ~784-~784: This phrase is redundant (‘I’ stands for ‘Interface’). Use simply “CLIInterface”.
Context: ... b; } }; ### Task 3: Implement CLI Interface File: `/src/evm/consensus/cli.zig`z...
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[style] ~1053-~1053: This phrase is redundant (‘I’ stands for ‘interface’). Use simply “CLI”.
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src/evm/prompts/implement-dos-protection.md
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Context: ...Error.GasLimitExceeded; } } }; #### 2. Memory Protection
10000
zig ...
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src/evm/prompts/implement-cli-tools.md
[style] ~1029-~1029: This phrase is redundant (‘I’ stands for ‘Interface’). Use simply “CLIInterface”.
Context: ...ation Tasks ### Task 1: Implement Main CLI Interface File: /src/evm/cli/main.zig ```zig co...
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Column: 1
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80-80: Hard tabs
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87-87: Hard tabs
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89-89: Hard tabs
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520-520: Multiple headings with the same content
null
(MD024, no-duplicate-heading)
src/evm/prompts/implement-dos-protection.md
100-100: Code block style
Expected: fenced; Actual: indented
(MD046, code-block-style)
164-164: Fenced code blocks should have a language specified
null
(MD040, fenced-code-language)
src/evm/prompts/implement-complete-call-operations.md
460-460: Multiple headings with the same content
null
(MD024, no-duplicate-heading)
🪛 Biome (1.9.4)
scripts/gemini.ts
[error] 5-5: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.
(lint/style/useNodejsImportProtocol)
[error] 6-6: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.
(lint/style/useNodejsImportProtocol)
[error] 7-7: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.
(lint/style/useNodejsImportProtocol)
🔇 Additional comments (19)
.gitignore (1)
95-95: LGTM! Appropriate addition to .gitignore.Adding
execution-specs/to the ignore list is the correct approach for excluding specification files that support the new audit checklist and consensus test integration features.src/evm/frame.zig (3)
115-115: LGTM! Improved error type idiom.Simplifying the return type from explicit
std.mem.Allocator.Error!Selfto!Selfis more idiomatic Zig and allows the compiler to infer the appropriate error types.
173-173: LGTM! Consistent error type improvement.Same beneficial change as in the
initfunction - using!Selfinstead of explicit error union type is cleaner and more maintainable.
228-231: LGTM! Improved branch prediction optimization.The refinement to use
@branchHint(.cold)inside the out-of-gas condition is more accurate than the previous approach. Out-of-gas errors are typically rare during normal execution, making this a cold path optimization.src/evm/checklist.md (1)
1-850: Excellent comprehensive audit checklist!This is a well-structured and thorough audit document that provides clear visibility into the EVM implementation status. The status legend, detailed coverage of all EVM components, and specific file references make this an invaluable development and audit tool.
Highlights:
- ✅ Comprehensive coverage of core EVM architecture, opcodes, and gas system
- ✅ Clear status indicators and progress tracking
- ✅ Excellent implementation quality in completed areas (arithmetic, comparison, bitwise, crypto, environmental, block, stack, memory, storage, control flow, log operations)
- ✅ Realistic identification of critical gaps (precompiles, WASM build, journaling)
Minor suggestion: Consider adding estimated effort/priority rankings for the missing items to help with development planning.
src/evm/prompts/implement-eip7702-delegation.md (3)
780-823: Comprehensive test coverage plan - excellent!The testing requirements are thorough and cover all critical aspects of EIP-7702 implementation including:
- Authorization tuple encoding/recovery
- Delegation designation validation
- Authorization processing edge cases
- Transaction execution scenarios
- Delegated execution contexts
- Security edge cases
This demonstrates good understanding of the complexity and security requirements.
844-853: Strong security and compliance requirements.The critical requirements properly emphasize:
- EIP-7702 specification compliance
- Signature verification accuracy
- Proper address resolution between code and storage
- Nonce management for replay protection
- Integration testing requirements
These are essential for a secure implementation.
🧰 Tools
🪛 LanguageTool
[style] ~852-~852: Using “real” as an adverb is considered informal. Consider using “really” or “very”.
Context: ... 6. Integration testing - Test with real smart contracts ## References - [EIP-...(REAL_REALLY)
28-86:✅ Verification successful
Good delegation designation structure, but verify magic constant.
The encoding/decoding logic is well-structured, but the magic constant
DELEGATION_DESIGNATION_MAGIC = 0xef0100should be verified against the final EIP-7702 specification to ensure it matches the standardized values.
🌐 Web query:
What is the correct magic prefix for EIP-7702 delegation designation according to the latest specification?💡 Result:
Magic Prefix for EIP-7702 Delegation Designation
The correct magic prefix for EIP-7702 delegation designation, according to the latest specification, is:
[
0xef0100
]This magic prefix is prepended to the designated delegate address to form the delegation designator. The
0xef01prefix is explicitly chosen to avoid conflicts with0xef00, which is reserved by EIP-3540, and the trailing0x00after0xef01is reserved to allow for potential future upgrades of EIP-7702[1].Technical Details
- Delegation Designator Format: The delegation indicator is constructed as
0xef0100 || address. This means0xef0100(three bytes) followed by the 20-byte delegate address. For example, if the delegate address is0x1234...abcd, the full delegation designator would be0xef01001234...abcd[1][2][5].- Rationale: This precise prefix ensures uniqueness and upgradeability, avoiding collisions with existing and future EIP transaction or code prefixes[1].
- Reference: The encoding and decoding logic using this prefix is implemented in major Ethereum clients such as Go-Ethereum[1].
Example Usage
Suppose your delegate address is
0xabc...123. The delegation designator would be:0xef0100abc...123Additional Note on Pseudocode Example
Some community guides, such as the PREP method deep dive, show other magic values like
646d6a0000000as illustrative placeholders, but these are not canonical for EIP-7702 itself—they are used for application-specific purposes outside the core EIP-7702 protocol[4]. The officially recognized prefix for EIP-7702 delegation designator remains0xef0100.
Summary:
The magic prefix for EIP-7702 delegation designation per the current spec is:[
\boxed{0xef0100}
]This must be prepended to the delegate address in the delegation designator field of EIP-7702 transactions[1][2][5].
Citations:
- 1: https://hackmd.io/@colinlyguo/SyAZWMmr1x
- 2: https://eips.ethereum.org/EIPS/eip-7702
- 3: https://ethereum-magicians.org/t/eip-7702-set-eoa-account-code/19923?page=11
- 4: https://blog.biconomy.io/prep-deep-dive/
- 5: https://decentralizedsecurity.es/eip-7702-ethereums-next-step-toward-a-more-flexible-account-model
- 6: https://osl.com/academy/article/ethereum-pectra-upgrade-eip-7702-practical-guide/
- 7: https://docs.gelato.network/smart-wallets/introduction/understanding-eip-7702
- 8: https://ethereum-magicians.org/t/eip-7702-set-eoa-account-code/19923?page=13
- 9: https://www.halborn.com/blog/post/a-comprehensive-guide-to-ethereum-eip-3074-and-eip-7702
- 10: https://www.nethermind.io/blog/eip-7702-attack-surfaces-what-developers-should-know
Magic constant matches EIP-7702 spec
The prefix
0xef0100inDELEGATION_DESIGNATION_MAGICis correct according to the latest EIP-7702 specification and requires no changes.go-ethereum (1)
1-1: Update go-ethereum submodule reference
Pointer updated to commit 35dd84ce2999ecf5ca8ace50a4d1a6abc231c370.src/evm/prompts/implement-bls12-381-g1add-precompile.md (1)
44-102: Excellent reference implementation documentation.The addition of the geth reference implementation provides comprehensive guidance for implementing the BLS12-381 G1 point addition precompile. The code examples clearly demonstrate the key patterns: fixed gas cost, strict input validation, proper use of cryptographic libraries, and correct encoding/decoding. This will be invaluable for ensuring specification compliance.
src/evm/prompts/implement-comprehensive-tracing.md (3)
47-72: Reference interfaces look accurate
TheOpContextandStateDBinterface definitions mirror go-ethereum’s hooks.go exactly. This provides a solid foundation for downstream tracing integration.
74-96: Tracing hook type definitions are complete
All hook signatures (TxStartHook,OpcodeHook, etc.) are correctly documented. This aligns with the EVM tracing requirements for transaction, opcode, and gas-change events.
98-109: VMContext struct snippet is correct
TheVMContextfields (coinbase, block number, stateDB, etc.) provide the essential block-level context for hooks. Good to go.src/evm/prompts/implement-branch-prediction-optimization.md (1)
229-274: Static hints should apply even whenconditionis null.
Currently, whenconditionisnull, dynamic feedback and history updates are skipped, but static hints are still supplied as.Likely. Verify that static hints are intended in this case; an explicit branch oncondition == nullmight improve clarity.src/evm/prompts/implement-async-database-support.md (1)
1238-1243: Placeholder VM async execution.
execute_with_async_statereturns a hardcoded result. Confirm whether this stub is acceptable for initial integration or needs real async implementation.src/evm/prompts/implement-bundle-state-management.md (1)
1186-1193: Verify import path forStateInterface
The snippet for/src/evm/bundle_state/checkpoint_manager.zigreferencesStateInterfacebut the path may differ in your repo layout. Please confirm that@import("../state/state_interface.zig").StateInterfaceis correct.src/evm/prompts/implement-cli-tools.md (1)
132-137: Unresolved tracing TODO inconfigure_vm
The comment "// Add tracing inspector" is a placeholder with no implementation. Remove the stub or implement the tracing integration before merging.src/evm/prompts/implement-call-frame-pooling.md (1)
1-330: Skip reviewing specification prompt.
This Markdown file provides high-level design and instructions for call frame pooling; it does not contain actual implementation code.src/evm/prompts/implement-account-status-tracking.md (1)
1-488: Skip reviewing specification prompt.
This Markdown file outlines the account status tracking design and workflow; it does not include executable code to review.
| // Placeholder for ECRECOVER - should use actual implementation | ||
| fn ecrecover_address(hash: []const u8, v: u8, r: U256, s: U256) !Address { | ||
| // TODO: Implement actual ECRECOVER | ||
| // This is a placeholder | ||
| _ = hash; | ||
| _ = v; | ||
| _ = r; | ||
| _ = s; | ||
| return error.NotImplemented; | ||
| } |
There was a problem hiding this comment.
Critical: ECRECOVER placeholder needs implementation.
The ecrecover_address function is a placeholder that returns error.NotImplemented. This is a security-critical component for signature verification and must be implemented before EIP-7702 can be used.
Consider implementing ECRECOVER using secp256k1 signature recovery. Do you want me to help implement this critical cryptographic function?
🤖 Prompt for AI Agents
In src/evm/prompts/implement-eip7702-delegation.md around lines 427 to 436, the
ecrecover_address function is currently a placeholder returning
error.NotImplemented, which is insufficient for signature verification. Replace
the placeholder with a proper implementation of ECRECOVER using secp256k1
signature recovery to derive the address from the given hash and signature
parameters. Ensure the function correctly handles the inputs and returns the
recovered address or an appropriate error.
| pub fn encode_for_signing(self: *const SetCodeTransaction, allocator: std.mem.Allocator) ![]u8 { | ||
| // Encode transaction for signature hash calculation | ||
| var list = std.ArrayList(u8).init(allocator); | ||
| defer list.deinit(); | ||
|
|
||
| // Transaction type | ||
| try list.append(SET_CODE_TX_TYPE); | ||
|
|
||
| // RLP encode transaction payload | ||
| // [chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit, to, value, data, access_list, authorization_list] | ||
|
|
||
| // TODO: Implement proper RLP encoding | ||
| // This is a placeholder | ||
|
|
||
| return list.toOwnedSlice(); | ||
| } | ||
|
|
||
| pub fn hash(self: *const SetCodeTransaction, allocator: std.mem.Allocator) !B256 { | ||
| const encoded = try self.encode_for_signing(allocator); | ||
| defer allocator.free(encoded); | ||
|
|
||
| const Keccak256 = std.crypto.hash.sha3.Keccak256; | ||
| var hasher = Keccak256.init(.{}); | ||
| hasher.update(encoded); | ||
| const hash_bytes = hasher.finalResult(); | ||
|
|
||
| return B256.from_slice(&hash_bytes); | ||
| } | ||
| }; |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Missing RLP encoding implementation.
The encode_for_signing and hash functions contain placeholder comments for RLP encoding. Since transaction hashing is critical for security, proper RLP encoding must be implemented.
Apply this approach to address the RLP encoding requirement:
+// Import RLP encoder
+const rlp = @import("../rlp/encoder.zig");
pub fn encode_for_signing(self: *const SetCodeTransaction, allocator: std.mem.Allocator) ![]u8 {
- // Encode transaction for signature hash calculation
- var list = std.ArrayList(u8).init(allocator);
- defer list.deinit();
-
- // Transaction type
- try list.append(SET_CODE_TX_TYPE);
-
- // RLP encode transaction payload
- // [chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit, to, value, data, access_list, authorization_list]
-
- // TODO: Implement proper RLP encoding
- // This is a placeholder
-
- return list.toOwnedSlice();
+ return try rlp.encode_set_code_transaction(self, allocator);
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| pub fn encode_for_signing(self: *const SetCodeTransaction, allocator: std.mem.Allocator) ![]u8 { | |
| // Encode transaction for signature hash calculation | |
| var list = std.ArrayList(u8).init(allocator); | |
| defer list.deinit(); | |
| // Transaction type | |
| try list.append(SET_CODE_TX_TYPE); | |
| // RLP encode transaction payload | |
| // [chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit, to, value, data, access_list, authorization_list] | |
| // TODO: Implement proper RLP encoding | |
| // This is a placeholder | |
| return list.toOwnedSlice(); | |
| } | |
| pub fn hash(self: *const SetCodeTransaction, allocator: std.mem.Allocator) !B256 { | |
| const encoded = try self.encode_for_signing(allocator); | |
| defer allocator.free(encoded); | |
| const Keccak256 = std.crypto.hash.sha3.Keccak256; | |
| var hasher = Keccak256.init(.{}); | |
| hasher.update(encoded); | |
| const hash_bytes = hasher.finalResult(); | |
| return B256.from_slice(&hash_bytes); | |
| } | |
| }; | |
| // Import RLP encoder | |
| const rlp = @import("../rlp/encoder.zig"); | |
| pub fn encode_for_signing(self: *const SetCodeTransaction, allocator: std.mem.Allocator) ![]u8 { | |
| return try rlp.encode_set_code_transaction(self, allocator); | |
| } | |
| pub fn hash(self: *const SetCodeTransaction, allocator: std.mem.Allocator) !B256 { | |
| const encoded = try self.encode_for_signing(allocator); | |
| defer allocator.free(encoded); | |
| const Keccak256 = std.crypto.hash.sha3.Keccak256; | |
| var hasher = Keccak256.init(.{}); | |
| hasher.update(encoded); | |
| const hash_bytes = hasher.finalResult(); | |
| return B256.from_slice(&hash_bytes); | |
| } |
🤖 Prompt for AI Agents
In src/evm/prompts/implement-eip7702-delegation.md around lines 504 to 532, the
encode_for_signing function currently uses a placeholder instead of properly RLP
encoding the transaction fields, which is essential for correct transaction
hashing. To fix this, implement full RLP encoding of the transaction payload
fields (chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit,
to, value, data, access_list, authorization_list) inside encode_for_signing,
replacing the placeholder code. Then ensure the hash function uses this
correctly RLP-encoded byte array for hashing with Keccak256.
| #### 1. Blob Transaction Type | ||
| ```zig | ||
| pub const BlobTransaction = struct { | ||
| chain_id: u64, | ||
| nonce: u64, | ||
| max_priority_fee_per_gas: u256, | ||
| max_fee_per_gas: u256, | ||
| gas_limit: u64, | ||
| to: ?Address, | ||
| value: u256, | ||
| data: []const u8, | ||
| access_list: AccessList, | ||
| max_fee_per_blob_gas: u256, | ||
| blob_versioned_hashes: []const B256, | ||
|
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| // Not included in transaction, but needed for validation | ||
| blobs: ?[]const Blob, | ||
| commitments: ?[]const KZGCommitment, | ||
| proofs: ?[]const KZGProof, | ||
| }; | ||
| ``` |
There was a problem hiding this comment.
Verify import paths for Zig modules
The BlobTransaction snippet imports Types/B256.ts and Types/U256.ts in a Zig code block. Ensure the file extensions and import paths match actual Zig source files (e.g., .zig vs .ts) to avoid confusion or build errors.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-complete-eip4844-support.md between lines 26 and
46, the BlobTransaction Zig code snippet references imports with TypeScript file
extensions (.ts) which is incorrect for Zig. Update all import paths to use the
correct Zig source file extensions (.zig) and verify the paths match the actual
Zig module locations to prevent build errors and confusion.
| const std = @import("std"); | ||
| const Address = @import("../Address.zig").Address; | ||
| const U256 = @import("../Types/U256.ts").U256; | ||
| const StateTest = @import("test_runner.zig").StateTest; | ||
| const BlockchainTest = @import("test_runner.zig").BlockchainTest; | ||
| const TransactionTest = @import("test_runner.zig").TransactionTest; | ||
|
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| pub const TestParser = struct { | ||
| allocator: std.mem.Allocator, | ||
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| pub fn init(allocator: std.mem.Allocator) TestParser { | ||
| return TestParser{ .allocator = allocator }; | ||
| } | ||
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| pub fn parse_state_test(self: *TestParser, json_content: []const u8) !StateTest { | ||
| var parser = std.json.Parser.init(self.allocator, false); | ||
| defer parser.deinit(); | ||
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| var tree = try parser.parse(json_content); | ||
| defer tree.deinit(); | ||
|
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| // Extract test data from JSON tree | ||
| // Implementation would parse JSON into StateTest structure | ||
|
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| return StateTest{ | ||
| .name = try self.allocator.dupe(u8, "test"), | ||
| .test_data = undefined, // Would be populated from JSON | ||
| }; | ||
| } | ||
|
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| pub fn parse_blockchain_test(self: *TestParser, json_content: []const u8) !BlockchainTest { | ||
| _ = self; | ||
| _ = json_content; | ||
|
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| // Placeholder implementation | ||
| return BlockchainTest{ | ||
| .name = "test", | ||
| .test_data = undefined, | ||
| }; | ||
| } | ||
|
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| pub fn parse_transaction_test(self: *TestParser, json_content: []const u8) !TransactionTest { | ||
| _ = self; | ||
| _ = json_content; | ||
|
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| // Placeholder implementation | ||
| return TransactionTest{ | ||
| .name = "test", | ||
| .test_data = undefined, | ||
| }; | ||
| } | ||
|
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| fn parse_address(value: std.json.Value) !Address { | ||
| if (value != .String) return error.InvalidAddress; | ||
| const addr_str = value.String; | ||
|
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| if (addr_str.len != 42 or !std.mem.startsWith(u8, addr_str, "0x")) { | ||
| return error.InvalidAddressFormat; | ||
| } | ||
|
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| return Address.from_hex(addr_str); | ||
| } | ||
|
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| fn parse_u256(value: std.json.Value) !U256 { | ||
| if (value != .String) return error.InvalidU256; | ||
| const hex_str = value.String; | ||
|
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| if (!std.mem.startsWith(u8, hex_str, "0x")) { | ||
| return error.InvalidU256Format; | ||
| } | ||
|
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| return U256.from_hex(hex_str[2..]); | ||
| } | ||
|
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| fn parse_bytes(self: *TestParser, value: std.json.Value) ![]u8 { | ||
| if (value != .String) return error.InvalidBytes; | ||
| const hex_str = value.String; | ||
|
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| if (!std.mem.startsWith(u8, hex_str, "0x")) { | ||
| return error.InvalidBytesFormat; | ||
| } | ||
|
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| const bytes = try self.allocator.alloc(u8, (hex_str.len - 2) / 2); | ||
| _ = try std.fmt.hexToBytes(bytes, hex_str[2..]); | ||
|
|
||
| return bytes; | ||
| } | ||
| }; | ||
| ``` |
There was a problem hiding this comment.
Fully implement TestParser or stub appropriately
The TestParser methods return undefined test_data placeholders, which will cause runtime errors if invoked. Either provide complete parsing logic or replace with clear stubs that raise TODO errors until ready.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-consensus-test-suite.md around lines 900 to 988,
the TestParser methods return StateTest, BlockchainTest, and TransactionTest
structs with undefined test_data fields, which will cause runtime errors. To fix
this, replace the undefined test_data placeholders with explicit error returns
or TODO error throws indicating the methods are not yet implemented, or fully
implement the parsing logic to populate test_data properly from the JSON input.
| // Check magic and version | ||
| if (!std.mem.eql(u8, bytecode[0..2], &EOF_MAGIC)) { | ||
| return error.InvalidEOFMagic; | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Incorrect slice for EOF magic comparison
std.mem.eql(u8, bytecode[0..2], &EOF_MAGIC) passes a pointer-to-array rather than a proper slice. Use EOF_MAGIC[0..] or pass EOF_MAGIC directly to compare two slices of length 2.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-eof-support.md around lines 71 to 74, the
comparison of EOF magic uses an incorrect slice by passing a pointer-to-array
instead of a slice. Fix this by replacing &EOF_MAGIC with EOF_MAGIC or
EOF_MAGIC[0..] to properly compare two slices of length 2 using std.mem.eql.
| pub fn get_prefetch_addresses(self: *const AccessPattern, base_address: usize, count: u32) []usize { | ||
| // Generate prefetch addresses based on pattern | ||
| var addresses = std.ArrayList(usize).init(std.heap.page_allocator); | ||
|
|
||
| switch (self.pattern_type) { | ||
| .Sequential => { | ||
| for (0..count) |i| { | ||
| addresses.append(base_address + (i + 1) * @abs(self.stride)) catch break; | ||
| } | ||
| }, | ||
| .Strided => { | ||
| for (0..count) |i| { | ||
| const next_addr = @as(i64, @intCast(base_address)) + (@as(i64, @intCast(i)) + 1) * self.stride; | ||
| if (next_addr >= 0) { | ||
| addresses.append(@intCast(next_addr)) catch break; | ||
| } | ||
| } | ||
| }, | ||
| else => { | ||
| // For random patterns, don't prefetch | ||
| }, | ||
| } | ||
|
|
||
| return addresses.toOwnedSlice() catch &[_]usize{}; | ||
| } |
There was a problem hiding this comment.
Invalid empty-slice fallback in get_prefetch_addresses
Returning &[_]usize{} on allocation failure is invalid Zig syntax and leaks the page allocator. Use a properly initialized empty slice (e.g., &[_]usize{}[0..0]) or return a cached empty list.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-cache-optimization.md around lines 218 to 242, the
fallback return value on allocation failure uses invalid Zig syntax
`&[_]usize{}` and causes a memory leak. Replace this with a properly initialized
empty slice such as `&[_]usize{}[0..0]` or return a cached empty slice to avoid
leaking the page allocator and ensure valid syntax.
|
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| pub fn optimize_struct_layout(self: *DataLayoutOptimizer, comptime T: type) type { | ||
| // Analyze struct fields and reorder for optimal cache usage | ||
| const fields = std.meta.fields(T); | ||
| if (fields.len <= 1) return T; | ||
|
|
||
| // Check cache for existing optimization |
There was a problem hiding this comment.
Unsafe type creation with stack data in create_optimized_type
optimized_fields is a local array whose pointer is embedded into a compile-time type, leading to dangling references. You must allocate or compute the field-order buffer at comptime or restructure to avoid stack escapes.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-cache-optimization.md around lines 1469 to 1475,
the function creates a local array optimized_fields on the stack and embeds its
pointer into a compile-time type, causing unsafe dangling references. To fix
this, ensure the field-order buffer is allocated or computed entirely at
compile-time or restructure the code to avoid capturing pointers to
stack-allocated data in the compile-time type. This may involve using comptime
arrays or other compile-time constructs to hold the optimized field order
safely.
## Description _Concise description of proposed changes_ ## Testing Explain the quality checks that have been done on the code changes ## Additional Information - [ ] I read the [contributing docs](../docs/contributing.md) (if this is your first contribution) Your ENS/address:
- Fix StackError reference to use Stack.Error (correct type) - Fix ExecutionErrorEnum reference to use ExecutionError.Error (correct type) - Maintain consistent error handling throughout EVM module - All tests passing after changes This ensures type correctness and follows Zig idioms for error handling.
- Simplify error type annotations to use inference where appropriate - Use proper @as() casts instead of explicit type annotations for better readability - Fix branch hints for error paths (.cold instead of .likely for catch blocks) - Add proper @throws documentation for functions - Maintain high-performance two-stage safety system and execution patterns All tests passing. VM execution performance and correctness preserved.
- Simplify error type annotations to use inference (!Self instead of std.mem.Allocator.Error!Self) - Fix branch hint placement to comply with Zig syntax rules - Optimize gas consumption with proper branch hints for hot path - Maintain comprehensive documentation and clear error handling All tests passing. Frame management performance preserved.
- Add @branchHint(.cold) for overflow/underflow error conditions - Optimize hot path performance by marking error conditions as unlikely - Maintain aligned memory layout and unsafe operation patterns - Preserve high-performance two-stage safety system All tests passing. Stack performance optimized for common success cases.
<prompt> The comprehensive EVM tests were exposing real bugs in the implementation. The user requested fixing the failing tests, which were found to be caused by implementation issues rather than test issues. Two main categories of bugs were identified and fixed: 1. Memory expansion gas calculation inconsistency 2. Missing JUMPDEST analysis in control flow tests </prompt> ## Memory Expansion Fix **Problem**: MSTORE gas calculation expected 3 gas but was getting 6 gas - Root cause: Test assumed minimal expansion but offset 1056 after 1024 requires additional word expansion - Memory expands from 1056 bytes (33 words) to 1088 bytes (34 words) = 3 gas expansion cost - Total cost: 3 (base MSTORE) + 3 (expansion) = 6 gas ✓ **Changes**: - Fixed test expectation in memory_comprehensive_test.zig (line 309) - Added word-boundary alignment in MLOAD/MSTORE operations for consistency - Updated comments to reflect correct EVM behavior ## JUMPDEST Analysis Fix **Problem**: JUMP operations failing with InvalidJump errors - Root cause: Tests were executing JUMP without calling analyze_jumpdests() - Contract.valid_jumpdest() requires prior analysis to identify valid destinations **Changes**: - Added contract.analyze_jumpdests(allocator) calls in control flow tests: - "JUMP: Basic unconditional jump" - "JUMP: Jump to various valid destinations" - "JUMP: Invalid jump destinations" - "JUMP: Stack underflow" - "Control Flow: Program counter tracking" - "Control Flow: Stack operations edge cases" ## Test Status - Fixed 1 memory expansion test (expected 3, found 6) ✅ - Fixed multiple JUMP validation tests ✅ - Remaining: 2 failing tests with program counter tracking issues 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
- Fix memory leak in Contract.analyze_code by adding proper cache cleanup - Add Contract.clear_analysis_cache calls to test cleanup - Add simple JUMPDEST validation test to verify analysis works correctly - Add stack operations validation test to verify PC/PUSH operations work - Confirmed JUMPDEST analysis is working correctly - 1 remaining test failure: complex program counter tracking test Progress: - Fixed JUMPDEST analysis issues (memory leak was the root cause) - Verified individual stack operations work correctly - Still investigating complex control flow interaction issue 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Actionable comments posted: 28
🔭 Outside diff range comments (1)
src/evm/prompts/implement-dos-protection.md (1)
1-20: 🛠️ Refactor suggestionConsider extracting code from markdown specs into actual module files.
Embedding full Zig implementations in a markdown doc hinders maintainability, testing, and IDE support. Move each struct implementation (GasLimitEnforcer,MemoryProtector, etc.) into dedicated.zigfiles underdos_protection/, and keep this markdown for high-level specs.
♻️ Duplicate comments (15)
scripts/gemini.ts (1)
59-59: ** Fix incorrect response concatenation.**The current code concatenates the raw response object with the text, which will result in
[object Object]being written to the file. Only the text content should be written.- writeFileSync(join(__dirname, "response.md"), response + text); + writeFileSync(join(__dirname, "response.md"), text);src/evm/prompts/implement-eip7702-delegation.md (2)
427-436: ** Critical: ECRECOVER placeholder needs implementation.**The
ecrecover_addressfunction is a placeholder that returnserror.NotImplemented. This is a security-critical component for signature verification and must be implemented before EIP-7702 can be used.Consider implementing ECRECOVER using secp256k1 signature recovery. Do you want me to help implement this critical cryptographic function?
504-532: ** Missing RLP encoding implementation.**The
encode_for_signingandhashfunctions contain placeholder comments for RLP encoding. Since transaction hashing is critical for security, proper RLP encoding must be implemented.Apply this approach to address the RLP encoding requirement:
+// Import RLP encoder +const rlp = @import("../rlp/encoder.zig"); pub fn encode_for_signing(self: *const SetCodeTransaction, allocator: std.mem.Allocator) ![]u8 { - // Encode transaction for signature hash calculation - var list = std.ArrayList(u8).init(allocator); - defer list.deinit(); - - // Transaction type - try list.append(SET_CODE_TX_TYPE); - - // RLP encode transaction payload - // [chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit, to, value, data, access_list, authorization_list] - - // TODO: Implement proper RLP encoding - // This is a placeholder - - return list.toOwnedSlice(); + return try rlp.encode_set_code_transaction(self, allocator); }src/evm/prompts/implement-complete-eip4844-support.md (1)
26-46:⚠️ Potential issueFix Zig import paths for B256 and U256
The BlobTransaction snippet incorrectly references TypeScript extensions (.ts) in Zig imports. Update the imports to match actual Zig source files, for example:- const B256 = @import("../Types/B256.ts").B256; - const U256 = @import("../Types/U256.ts").U256; + const B256 = @import("../Types/B256.zig").B256; + const U256 = @import("../Types/U256.zig").U256;src/evm/prompts/implement-ecrecover-precompile.md (1)
52-102:⚠️ Potential issueGuard Against Underflow in
v := input[63] - 27
The geth snippet subtracts 27 frominput[63]without a pre-check, risking underflow ifinput[63] < 27. Add a guard before subtraction:- v := input[63] - 27 + if input[63] < 27 { + return nil, nil // or return an error for invalid v + } + v := input[63] - 27This prevents an unsigned underflow before signature validation.
🧰 Tools
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scripts/response.md (1)
1-2: Remove Stray Serialization Prefix
The file still starts with[object Object], which appears to be an unintended artifact. Please remove this prefix to ensure the document begins cleanly.🧰 Tools
🪛 LanguageTool
[duplication] ~1-~1: Possible typo: you repeated a word.
Context: [object Object]Okay, I understand. Here's a comprehens...(ENGLISH_WORD_REPEAT_RULE)
src/evm/prompts/implement-async-database-support.md (4)
28-65: Reduce boilerplate in AsyncStateInterface vtable
The manual stubs for each async method introduce significant duplication. Leverage Zig’s compile-time reflection or a generic loop to auto-generate the VTable entries and improve maintainability.
381-389: Replace busy-wait with non-blocking await
Usingstd.time.sleepin a loop blocks other tasks and undermines async benefits. Implement proper event-loop yielding or use Zig’s native async suspension primitives instead of a busy-wait.
552-568: Avoid pointer invalidation from ArrayList growth
Storing pointers to elements inconnections.itemscan become invalid if the list reallocates. Use allocator-owned allocations or a data structure with stable addresses (e.g., linked list) to guarantee pointer safety.
760-776: Implement real database connections
Theconnect_sqlite,connect_postgresql, andconnect_redisfunctions are placeholders. Integrate actual client libraries (e.g., libsqlite3, libpq, hiredis) to establish real connections before returning the backend instance.src/evm/prompts/implement-branch-prediction-optimization.md (3)
562-577: Guard against empty LRU eviction.
Ifself.table.count()is zero,lru_ipremains0andremove(0)is called on an empty map. Add an early return when the table is empty:fn evict_lru(self: *PredictionTable) void { + if (self.table.count() == 0) return; var min_frequency: u64 = std.math.maxInt(u64); var lru_ip: u32 = 0; ... }
725-745: Remove premature deinitialization to avoid dangling slice.
get_hot_pathsdefershot_paths.deinit()before returningtoOwnedSlice(), invalidating the returned slice. Either remove thedefer hot_paths.deinit();or allocate a copy of the list aftertoOwnedSlice().
136-150: Ensure thread safety and bound history growth.
BranchInfo.record_outcomeupdates shared state (e.g.last_outcomes,frequency) without synchronization, risking data races in multi-threaded VMs. It also allowsfrequencyto grow unbounded. Consider using atomic operations or a mutex, and cap/resetfrequencyandoutcome_indexto prevent overflow.src/evm/prompts/implement-cache-optimization.md (2)
218-242: Invalid empty-slice fallback inget_prefetch_addresses.Using
catch &[_]usize{}is invalid Zig syntax and leaks the page allocator. Replace with a zero-length slice, e.g.:return addresses.toOwnedSlice() catch &[_]usize{}[0..0];or return a shared static empty slice.
1547-1555: Unsafe type creation with stack-allocated array increate_optimized_type.
optimized_fieldsis a local array whose address is captured in a compile-time type, causing dangling references. You must allocate this buffer at comptime or restructure the API to avoid stack escapes.
🧹 Nitpick comments (34)
scripts/gemini.ts (1)
5-7: Consider using Node.js import protocol for built-in modules.Using the
node:protocol makes it explicit that these are Node.js built-in modules and is the recommended modern practice.-import { readFileSync, writeFileSync } from "fs"; -import { join } from "path"; -import { stdin } from "process"; +import { readFileSync, writeFileSync } from "node:fs"; +import { join } from "node:path"; +import { stdin } from "node:process";🧰 Tools
🪛 Biome (1.9.4)
[error] 5-5: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.(lint/style/useNodejsImportProtocol)
[error] 6-6: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.(lint/style/useNodejsImportProtocol)
[error] 7-7: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.(lint/style/useNodejsImportProtocol)
scripts/notes.md (2)
11-11: Minor: Use hyphenated "to-do" for the noun form.When referring to a task list, "to-do" should be hyphenated.
-2. Create markdown todo list of every file in evm package +2. Create markdown to-do list of every file in evm package🧰 Tools
🪛 LanguageTool
[grammar] ~11-~11: It appears that a hyphen is missing in the noun “to-do” (= task) or did you mean the verb “to do”?
Context: ...o understand project 2. Create markdown todo list of every file in evm package 3. Fo...(TO_DO_HYPHEN)
19-20: Format URLs in markdown for better readability.Consider wrapping bare URLs in angle brackets or using proper markdown link format.
-- Standard library: https://ziglang.org/documentation/master/std/ -- Language docs: https://ziglang.org/documentation/master/ +- Standard library: <https://ziglang.org/documentation/master/std/> +- Language docs: <https://ziglang.org/documentation/master/>🧰 Tools
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src/evm/prompts/implement-comprehensive-tracing.md (1)
52-70: Replace hard tabs with spaces in code blocks.The Go code blocks use hard tabs instead of spaces, which can cause inconsistent rendering across different editors and platforms.
Apply consistent spacing throughout the code blocks. For example:
type OpContext interface { - MemoryData() []byte - StackData() []uint256.Int - Caller() common.Address + MemoryData() []byte + StackData() []uint256.Int + Caller() common.Address🧰 Tools
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src/evm/prompts/implement-eip7702-delegation.md (2)
351-367: Add clear documentation for simplified RLP encoding.Since this is a specification document, the simplified RLP encoding approach should be clearly documented as a placeholder that requires proper implementation.
fn encode_authorization_rlp(writer: anytype, auth: *const AuthorizationTuple) !void { - // Simplified RLP encoding for [chain_id, address, nonce] - // In production, use a proper RLP library + // SPECIFICATION NOTE: This is a simplified RLP encoding for [chain_id, address, nonce] + // IMPLEMENTATION REQUIREMENT: Must be replaced with proper RLP encoding before production use + // This simplified approach may cause compatibility issues with standard Ethereum tools
20-21: Clarify sentence structure for better readability.The sentence could benefit from improved punctuation for clarity.
-Implement EIP-7702 which allows Externally Owned Accounts (EOAs) to temporarily delegate their code execution to a smart contract. +Implement EIP-7702, which allows Externally Owned Accounts (EOAs) to temporarily delegate their code execution to a smart contract.🧰 Tools
🪛 LanguageTool
[uncategorized] ~20-~20: Possible missing comma found.
Context: ...y for review ## Context Implement EIP-7702 which allows Externally Owned Accounts ...(AI_HYDRA_LEO_MISSING_COMMA)
src/evm/prompts/implement-complete-eip4844-support.md (3)
50-69: Extract shared constants to avoid duplication
BYTES_PER_BLOB,FIELD_ELEMENTS_PER_BLOB, andBLS_MODULUSare defined in multiple places across the spec. Consider centralizing these in a common module (e.g.,blob_constants.zig) and importing them to prevent divergence.
74-93: Use constant‐time comparison for cryptographic data
Theverify_blob_kzg_proofusesstd.mem.eql(u8, ...), which may be vulnerable to timing analysis. For cryptographic commitments, prefer a constant‐time compare (or wrap in atry std.crypto.constantTimeCompare(...)) to mitigate side‐channel risks.
99-126: Clarify arithmetic grouping to avoid truncation errors
The base‐fee delta calculation chains multiple divisions which can yield unexpected truncation. Better to compute numerator and denominator explicitly:const numerator = parent_blob_base_fee * delta; const denominator = TARGET_BLOB_GAS_PER_BLOCK * BLOB_BASE_FEE_UPDATE_FRACTION; const fee_increment = numerator / denominator; const base_fee_delta = @max(fee_increment, 1);This makes the intent and truncation points explicit.
src/evm/prompts/implement-cli-tools.md (2)
1028-1031: Remove redundant “Interface” in CLI nomenclature
The phrase “Main CLI Interface” is verbose—“CLI” already stands for “Command‐Line Interface.” Rename to “Task 1: Implement Main CLI.”🧰 Tools
🪛 LanguageTool
[style] ~1029-~1029: This phrase is redundant (‘I’ stands for ‘Interface’). Use simply “CLIInterface”.
Context: ...ation Tasks ### Task 1: Implement Main CLI Interface File:/src/evm/cli/main.zig```zig co...(ACRONYM_TAUTOLOGY)
3-11: Split specification into per‐tool modules
This document covers four distinct CLI tools in one file. For maintainability and clarity, break it into separate specs (e.g.,executor.md,state_inspector.md, etc.) and aggregate at the end.src/evm/prompts/implement-account-status-tracking.md (3)
28-36: Allow configurable initial capacity for history
status_historyis initialized with default capacity, which may grow unbounded under heavy load. Introduce an initial capacity or builder hook inTrackingConfigto tune memory usage per deployment.
414-422: Use fully‐qualified enum names for clarity
Unqualified.Contractand.Createdcan clash with multiple enums. Prefer:status.account_type = AccountStatus.AccountType.Contract;This makes the code self‐documenting.
444-453: Combine retention duration with entry culling
record_status_changeevicts the oldest entry when exceedingmax_history_entries, but does not remove entries older thanhistory_retention_days. Extend eviction logic to drop stale entries based on timestamp as well.src/evm/prompts/implement-blake2f-precompile.md (1)
84-124: Avoid Magic Numbers in Full Implementation
The fullRunmethod uses literal213in multiple places. Consider replacing it with theblake2FInputLengthconstant to prevent drift if the input size ever changes:- if len(input) != 213 { + if len(input) != blake2FInputLength { ... - if input[212] != blake2FNonFinalBlockBytes && input[212] != blake2FFinalBlockBytes { + if input[blake2FInputLength-1] != blake2FNonFinalBlockBytes && input[blake2FInputLength-1] != blake2FFinalBlockBytes {src/evm/prompts/implement-complete-call-operations.md (1)
459-460: Remove Duplicate Heading
There is a repeated heading at line 460; please consolidate or remove the duplicate to satisfy Markdown lint rules (MD024).🧰 Tools
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460-460: Multiple headings with the same content
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src/evm/prompts/implement-consensus-test-suite.md (3)
20-21: Parallel verb consistency
The phrase “automated test discovery, execution, and reporting” mixes noun and gerund forms. Consider restructuring to “discover, execute, and report” or use “discovery, execution, and reporting” for parallel structure.🧰 Tools
🪛 LanguageTool
[grammar] ~20-~20: The verb ‘reporting’ is used with the gerund form.
Context: ...utomated test discovery, execution, and reporting to catch any regressions or compatibility issues...(ADMIT_ENJOY_VB)
1050-1053: Avoid redundant acronym expansion
In “Usability: Clear CLI interface with helpful error reporting”, “CLI interface” is tautological. Change to “CLI” to eliminate redundancy.🧰 Tools
🪛 LanguageTool
[style] ~1053-~1053: This phrase is redundant (‘I’ stands for ‘interface’). Use simply “CLI”.
Context: ...llel processing 4. Usability: Clear CLI interface with helpful error reporting 5. **Autom...(ACRONYM_TAUTOLOGY)
332-341: Honorfail_fastin parallel mode
fail_fastis applied inrun_tests_sequential, butrun_tests_parallelcontinues executing even after failures. To respectfail_fast, add a check inside the parallel loop to break early whenfail_fastis enabled and failures have occurred.src/evm/pr 3D11 ompts/implement-async-database-support.md (2)
570-590: Avoid recursion inacquire_connection
The retry logic inacquire_connectionuses recursion after the wait loop, which risks stack overflows under contention. Refactor to an iterative loop for retrying.
726-735: Use a thread pool for async tasks
Spawning a new thread per query (std.Thread.spawn) is expensive at scale. Consider reusing a thread pool to handleexecute_query_taskandexecute_batch_taskfor better performance and resource utilization.src/evm/prompts/implement-bundle-state-management.md (3)
1-24: Spec scope is too broad; split into modular docs.
The document spans multiple subsystems and lengthy code listings—consider breaking it into focused files (e.g., core bundle framework, VM integration, checkpoint manager) for better maintainability and discoverability.
1537-1542: Provide specs for missing modules.
Implementation tasks listdiff_tracker.zigandconflict_resolver.zigbut no interfaces or behavior descriptions are given. Include skeleton outlines or high-level requirements for these components to guide implementation.
1547-1548: Use consistent path notation.
Paths are prefixed with/src/.... Standardize to relative paths without the leading slash (e.g.,src/evm/bundle_state/...) or follow the repo’s established convention to avoid confusion.src/evm/prompts/implement-edge-case-handling.md (2)
1-24: Parceled spec into multiple files.
This document covers four edge case handlers, integration steps, error types, and validation logic. Consider splitting each handler category and the integration guide into separate markdown files or directories for clarity.
805-810: EdgeCaseManager spec missing.
The VM integration referencesEdgeCaseManager.init, but no API or behavior details foredge_case_manager.zigare provided. Please include its interface or a link to its detailed specification.src/evm/prompts/implement-custom-chain-framework.md (3)
49-67: ClarifyCustomenum variants
TheChainType.CustomandConsensusAlgorithm.Customvariants lack usage guidance. Add brief comments or documentation on their intended semantics and constraints.
85-101: Unify configuration initialization style
ethereum_mainnet()usesstd.mem.zeroes(CustomFeatures)while other factories explicitly initialize each field. Consider adopting a consistent pattern for readability and maintainability.
543-550: Store opcode implementations by pointer
standard_opcodes: [256]?OpcodeImplementationembeds large structs inline. For performance and to simplify ownership, consider storing pointers (e.g.,?*OpcodeImplementation) instead.src/evm/prompts/implement-call-frame-pooling.md (5)
40-49: Clarify disabled size‐class behavior
Whenenable_size_classesis false,get_size_classalways returns 0. Document this fallback inPoolConfig.disabled()to prevent confusion.
166-174: Reset frame state conditionally
frame.reset()is called before checking if pooling succeeded. Move state reset inside the successful pool‐release branch to avoid unnecessary resets when deallocating directly.
336-344: Add missing time import
PooledFrame.initcallsstd.time.milliTimestamp()but there’s noconst std = @import("std");. Include the import to avoid undefined symbol errors.
430-437: Handle append failure explicitly
Inadd_child, thecatch {}silently ignores allocation failures. At minimum log a warning or return an error instead of dropping the child untracked.
557-566: Record pool creation in statistics
After pre‐allocatinginitial_sizeframes inFramePool.init, consider updatingPoolStatistics(e.g.,pools_activeandtotal_pools_created) to reflect the newly created pool.
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📒 Files selected for processing (28)
.gitignore(1 hunks)go-ethereum(1 hunks)scripts/gemini.ts(1 hunks)scripts/notes.md(1 hunks)scripts/response.md(1 hunks)src/evm/checklist.md(1 hunks)src/evm/contract/contract.zig(1 hunks)src/evm/execution/memory.zig(2 hunks)src/evm/frame.zig(3 hunks)src/evm/prompts/implement-account-status-tracking.md(1 hunks)src/evm/prompts/implement-async-database-support.md(1 hunks)src/evm/prompts/implement-blake2f-precompile.md(1 hunks)src/evm/prompts/implement-bls12-381-g1add-precompile.md(1 hunks)src/evm/prompts/implement-branch-prediction-optimization.md(1 hunks)src/evm/prompts/implement-bundle-state-management.md(1 hunks)src/evm/prompts/implement-cache-optimization.md(1 hunks)src/evm/prompts/implement-call-frame-pooling.md(1 hunks)src/evm/prompts/implement-cli-tools.md(1 hunks)src/evm/prompts/implement-complete-call-operations.md(1 hunks)src/evm/prompts/implement-complete-eip4844-support.md(1 hunks)src/evm/prompts/implement-comprehensive-tracing.md(1 hunks)src/evm/prompts/implement-consensus-test-suite.md(1 hunks)src/evm/prompts/implement-custom-chain-framework.md(1 hunks)src/evm/prompts/implement-dos-protection.md(2 hunks)src/evm/prompts/implement-ecrecover-precompile.md(2 hunks)src/evm/prompts/implement-edge-case-handling.md(1 hunks)src/evm/prompts/implement-eip7702-delegation.md(1 hunks)src/evm/prompts/implement-eof-support.md(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- src/evm/prompts/implement-bls12-381-g1add-precompile.md
🚧 Files skipped from review as they are similar to previous changes (6)
- .gitignore
- go-ethereum
- src/evm/execution/memory.zig
- src/evm/frame.zig
- src/evm/checklist.md
- src/evm/contract/contract.zig
🧰 Additional context used
🪛 markdownlint-cli2 (0.17.2)
src/evm/prompts/implement-complete-call-operations.md
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src/evm/prompts/implement-dos-protection.md
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scripts/notes.md
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🪛 LanguageTool
scripts/response.md
[duplication] ~1-~1: Possible typo: you repeated a word.
Context: [object Object]Okay, I understand. Here's a comprehens...
(ENGLISH_WORD_REPEAT_RULE)
src/evm/prompts/implement-consensus-test-suite.md
[grammar] ~20-~20: The verb ‘reporting’ is used with the gerund form.
Context: ...utomated test discovery, execution, and reporting to catch any regressions or compatibility issues...
(ADMIT_ENJOY_VB)
[style] ~784-~784: This phrase is redundant (‘I’ stands for ‘Interface’). Use simply “CLIInterface”.
Context: ... b; } }; ### Task 3: Implement CLI Interface File: `/src/evm/consensus/cli.zig`z...
(ACRONYM_TAUTOLOGY)
[style] ~1053-~1053: This phrase is redundant (‘I’ stands for ‘interface’). Use simply “CLI”.
Context: ...llel processing 4. Usability: Clear CLI interface with helpful error reporting 5. **Autom...
(ACRONYM_TAUTOLOGY)
src/evm/prompts/implement-eip7702-delegation.md
[uncategorized] ~20-~20: Possible missing comma found.
Context: ...y for review ## Context Implement EIP-7702 which allows Externally Owned Accounts ...
(AI_HYDRA_LEO_MISSING_COMMA)
[style] ~852-~852: Using “real” as an adverb is considered informal. Consider using “really” or “very”.
Context: ... 6. Integration testing - Test with real smart contracts ## References - [EIP-...
(REAL_REALLY)
src/evm/prompts/implement-dos-protection.md
[uncategorized] ~162-~162: Loose punctuation mark.
Context: ...Error.GasLimitExceeded; } } }; #### 2. Memory Protectionzig ...
(UNLIKELY_OPENING_PUNCTUATION)
src/evm/prompts/implement-cli-tools.md
[style] ~1029-~1029: This phrase is redundant (‘I’ stands for ‘Interface’). Use simply “CLIInterface”.
Context: ...ation Tasks ### Task 1: Implement Main CLI Interface File: /src/evm/cli/main.zig ```zig co...
(ACRONYM_TAUTOLOGY)
scripts/notes.md
[grammar] ~11-~11: It appears that a hyphen is missing in the noun “to-do” (= task) or did you mean the verb “to do”?
Context: ...o understand project 2. Create markdown todo list of every file in evm package 3. Fo...
(TO_DO_HYPHEN)
🪛 Biome (1.9.4)
scripts/gemini.ts
[error] 5-5: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.
(lint/style/useNodejsImportProtocol)
[error] 6-6: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.
(lint/style/useNodejsImportProtocol)
[error] 7-7: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.
(lint/style/useNodejsImportProtocol)
⏰ Context from checks skipped due to timeout of 90000ms (3)
- GitHub Check: CI Checks
- GitHub Check: Nx Cloud - Main Job
- GitHub Check: Analyze (javascript-typescript)
🔇 Additional comments (11)
scripts/gemini.ts (1)
23-28: LGTM! Good refactoring to file-based prompt construction.The change from command-line/stdin input to file-based prompt construction using
prompt.mdandresponse.mdfiles creates a more maintainable workflow for iterative AI-assisted development.scripts/notes.md (1)
1-58: Excellent comprehensive documentation for Zig refactoring.This documentation provides thorough guidance covering task overview, requirements, language features, expert principles, and specific refactoring patterns. The structured approach will ensure consistent and effective idiomatic Zig improvements across the codebase.
🧰 Tools
🪛 LanguageTool
[grammar] ~11-~11: It appears that a hyphen is missing in the noun “to-do” (= task) or did you mean the verb “to do”?
Context: ...o understand project 2. Create markdown todo list of every file in evm package 3. Fo...(TO_DO_HYPHEN)
🪛 markdownlint-cli2 (0.17.2)
19-19: Bare URL used
null(MD034, no-bare-urls)
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null(MD034, no-bare-urls)
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src/evm/prompts/implement-comprehensive-tracing.md (1)
39-110: Excellent comprehensive tracing framework design.The hook-based architecture following geth's proven patterns provides excellent coverage for:
- Transaction lifecycle tracing (TxStartHook, TxEndHook)
- Message execution tracing (EnterHook, ExitHook)
- Opcode-level tracing (OpcodeHook, FaultHook)
- Gas consumption tracking (GasChangeHook)
- Rich execution context (OpContext, VMContext, StateDB interfaces)
This design will enable powerful debugging, profiling, and auditing capabilities for the EVM implementation.
🧰 Tools
🪛 markdownlint-cli2 (0.17.2)
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src/evm/prompts/implement-eip7702-delegation.md (1)
1-859: Comprehensive and well-structured EIP-7702 specification.This specification document provides excellent coverage of EIP-7702 implementation requirements including:
- Complete data structures (DelegationDesignation, AuthorizationTuple, SetCodeTransaction)
- Detailed authorization processing logic with proper validation
- State management extensions for authorization nonces
- VM integration for delegation support
- Call operation updates for delegated execution
- Comprehensive testing requirements and edge cases
- Clear integration points and success criteria
The systematic approach with git workflow instructions, task breakdown, and critical requirements ensures a robust implementation pathway.
🧰 Tools
🪛 LanguageTool
[uncategorized] ~20-~20: Possible missing comma found.
Context: ...y for review ## Context Implement EIP-7702 which allows Externally Owned Accounts ...(AI_HYDRA_LEO_MISSING_COMMA)
[style] ~852-~852: Using “real” as an adverb is considered informal. Consider using “really” or “very”.
Context: ... 6. Integration testing - Test with real smart contracts ## References - [EIP-...(REAL_REALLY)
src/evm/prompts/implement-blake2f-precompile.md (3)
50-57: Add Reference Implementations Section
The new “Reference Implementations” header and introductory explanation provide valuable context for implementers.
58-71: Constants and Errors Listing Looks Accurate
The declaration ofblake2FInputLengthand error variables matches the go-ethereum source and clearly documents invalid input and final-flag cases.
72-83: Gas Calculation Behavior Clarification
TheRequiredGasexample correctly returns 0 for malformed inputs, deferring failure to the call site. This aligns with geth’s pattern.src/evm/prompts/implement-ecrecover-precompile.md (1)
536-596: Approve REVM ECRECOVER Implementation
The revm examples demonstrate robust input validation (including matchingvto 27/28), signature normalization, multiple backend support, fixed gas cost, and safe error handling—excellent reference patterns.src/evm/prompts/implement-bundle-state-management.md (1)
6-10: Verify branch naming and commit conventions.
The workflow instructs using an emoji in commit messages (✨ feat: …), but the repository may enforce conventional commits without emojis. Please confirm alignment with the project’s guidelines before proceeding.src/evm/prompts/implement-custom-chain-framework.md (1)
6-9: Verify commit message conventions
The workflow instructs using emojis (🔧 feat:) in commit messages. Ensure this aligns with the monorepo’s contributing guidelines or adjust to match the existing style.src/evm/prompts/implement-call-frame-pooling.md (1)
6-10: Confirm commit emoji usage
The branch setup prescribes⚡ perf:commits with emojis. Double-check that this aligns with the repository’s commit style policy.
| pub const BlobValidationError = error{ | ||
| InvalidBlobCount, | ||
| InvalidVersionedHash, | ||
| KZGVerificationFailed, | ||
| BlobGasLimitExceeded, | ||
| InsufficientBlobGasFee, | ||
| InvalidBlobData, | ||
| }; | ||
|
|
||
| pub const BlobValidator = struct { | ||
| kzg_settings: KZGSettings, | ||
|
|
||
| pub fn validate_blob_transaction( | ||
| self: *BlobValidator, | ||
| tx: *const BlobTransaction, | ||
| current_blob_base_fee: u256 | ||
| ) BlobValidationError!void { | ||
| // Validate blob count | ||
| if (tx.blob_versioned_hashes.len == 0 or tx.blob_versioned_hashes.len > 6) { | ||
| return BlobValidationError.InvalidBlobCount; | ||
| } | ||
|
|
||
| // Validate max fee per blob gas | ||
| if (tx.max_fee_per_blob_gas < current_blob_base_fee) { | ||
| return BlobValidationError.InsufficientBlobGasFee; | ||
| } | ||
|
|
||
| // Validate versioned hashes if blobs are provided | ||
| if (tx.blobs) |blobs| { | ||
| if (blobs.len != tx.blob_versioned_hashes.len) { | ||
| return BlobValidationError.InvalidBlobCount; | ||
| } | ||
|
|
||
| if (tx.commitments) |commitments| { | ||
| if (commitments.len != blobs.len) { | ||
| return BlobValidationError.InvalidBlobCount; | ||
| } | ||
|
|
||
| // Verify each blob against its commitment | ||
| for (blobs, commitments, tx.blob_versioned_hashes) |*blob, *commitment, versioned_hash| { | ||
| // Verify versioned hash | ||
| const computed_hash = compute_versioned_hash(commitment); | ||
| if (!std.mem.eql(u8, &versioned_hash.bytes, &computed_hash.bytes)) { | ||
| return BlobValidationError.InvalidVersionedHash; | ||
| } | ||
|
|
||
| // Verify KZG commitment | ||
| if (tx.proofs) |proofs| { | ||
| const proof_index = @intFromPtr(blob) - @intFromPtr(blobs.ptr); | ||
| const proof = &proofs[proof_index]; | ||
|
|
||
| if (!KZGCommitment.verify_blob_kzg_proof(blob, commitment, proof)) { | ||
| return BlobValidationError.KZGVerificationFailed; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Enforce error when proofs are missing
If commitments is present but tx.proofs is null, the loop skips KZG verification. Instead, it should return BlobValidationError.KZGVerificationFailed when proofs are absent:
if (commitments) |_|
if (!tx.proofs) return BlobValidationError.KZGVerificationFailed;This prevents silent validation bypass.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-complete-eip4844-support.md around lines 140 to
198, the code currently skips KZG verification if tx.proofs is null when
commitments are present, allowing silent validation bypass. To fix this, add a
check immediately after confirming commitments exist: if tx.proofs is null,
return BlobValidationError.KZGVerificationFailed. This enforces that proofs must
be present for KZG verification and prevents skipping this critical validation
step.
| access_type: StorageAccessType, | ||
| context: StorageContext | ||
| ) !void { | ||
| if (!self.config.enable_status_tracking) return; | ||
| if (self.config.detailed_tracking_mode == .Basic) return; | ||
|
|
||
| if (self.account_registry.getPtr(address)) |status| { | ||
| try status.storage_activity.record_access(key, old_value, new_value, access_type, context); | ||
|
|
||
| // Update access patterns |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Restrict storage tracking to Comprehensive/Debug modes
Current code only skips storage access in Basic mode. To honor Standard, update the guard:
// Only track in Comprehensive or Debug
if (self.config.detailed_tracking_mode < .Comprehensive) return;Otherwise, Standard mode will record storage events unexpectedly.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-account-status-tracking.md around lines 252 to 261,
the current code only skips storage tracking in Basic mode, which causes storage
events to be recorded in Standard mode unexpectedly. Update the guard condition
to restrict tracking to only Comprehensive and Debug modes by changing the check
to return early if detailed_tracking_mode is less than Comprehensive, ensuring
storage tracking is disabled in both Basic and Standard modes.
| pub fn init(allocator: std.mem.Allocator, config: TrackingConfig) AccountStatusManager { | ||
| return AccountStatusManager{ | ||
| .allocator = allocator, | ||
| .config = config, | ||
| .account_registry = std.HashMap(Address, AccountStatus, AddressContext, std.hash_map.default_max_load_percentage).init(allocator), | ||
| .status_history = std.ArrayList(AccountStatusChange).init(allocator), | ||
| .lifecycle_statistics = LifecycleStatistics.init(), | ||
| .status_listeners = std.ArrayList(StatusListener).init(allocator), | ||
| .cleanup_scheduler = CleanupScheduler.init(allocator, config.cleanup_interval_seconds), | ||
| }; |
There was a problem hiding this comment.
Prevent allocation leaks on init failure
AccountStatusManager.init allocates multiple structures; if one try fails (e.g., CleanupScheduler.init), prior allocations are not freed. Wrap allocations in a defer/unwind pattern or two‐phase init to guarantee cleanup on error.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-account-status-tracking.md around lines 95 to 104,
the init function allocates multiple resources but does not free previously
allocated ones if a later allocation fails, causing memory leaks. Refactor the
init function to use a two-phase initialization or a defer/unwind pattern that
ensures all allocated resources are properly freed if any step fails during
initialization.
| const Address = @import("../Address.zig").Address; | ||
| const U256 = @import("../Types/U256.ts").U256; | ||
| const ExecutionResult = @import("../execution/execution_result.zig").ExecutionResult; | ||
|
|
There was a problem hiding this comment.
Fix wrong file extension
The import for U256 uses a .ts extension (@import("../Types/U256.ts")), which is inconsistent with the rest of the Zig code. It should be @import("../Types/U256.zig").
🤖 Prompt for AI Agents
In src/evm/prompts/implement-consensus-test-suite.md around lines 179 to 182,
the import statement for U256 incorrectly uses a .ts file extension instead of
.zig. Change the import path from "../Types/U256.ts" to "../Types/U256.zig" to
maintain consistency with the Zig codebase and ensure correct module resolution.
| pub const Vm = struct { | ||
| // Existing fields... | ||
| bundle_manager: ?StateBundleManager, | ||
| current_bundle: ?StateBundleManager.BundleId, | ||
| bundle_enabled: bool, |
There was a problem hiding this comment.
Initialize new VM fields in constructor.
The snippet adds bundle_manager, current_bundle, and bundle_enabled fields but omits their default initialization in the Vm struct initializer. Explicitly set them (e.g., null, null, false) in Vm.init to avoid undefined behaviour at startup.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-bundle-state-management.md around lines 1395 to
1399, the new fields bundle_manager, current_bundle, and bundle_enabled are
added to the Vm struct but are not initialized in the Vm.init constructor. To
fix this, explicitly initialize bundle_manager and current_bundle to null and
bundle_enabled to false within the Vm.init function to ensure they have defined
default values at startup.
| pub const CacheStatistics = struct { | ||
| l1_accesses: u64, | ||
| l1_hits: u64, | ||
| l1_misses: u64, | ||
| l2_accesses: u64, | ||
| l2_hits: u64, |
There was a problem hiding this comment.
Missing std import in cache statistics code block.
You’re calling std.time.milliTimestamp() and std.log.info without importing std. Add const std = @import("std");.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-cache-optimization.md around lines 1245 to 1250,
the code uses std.time.milliTimestamp() and std.log.info without importing std.
Add the line const std = @import("std"); at the beginning of the code block to
properly import std and avoid undefined reference errors.
| pub fn CacheOptimizedArray(comptime T: type) type { | ||
| return struct { | ||
| const Self = @This(); | ||
|
|
||
| allocator: std.mem.Allocator, |
There was a problem hiding this comment.
Missing std import in cache-optimized array code block.
This block references std.mem and std.sort without const std = @import("std");. Include the import.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-cache-optimization.md around lines 1036 to 1040,
the code block uses std.mem and std.sort but lacks the import statement for std.
Add the line const std = @import("std"); at the beginning of the code block to
properly import the standard library and resolve references to std.mem and
std.sort.
| pub const AccessPatternTracker = struct { | ||
| allocator: std.mem.Allocator, | ||
| config: CacheOptimizer.CacheConfig, | ||
| access_history: std.ArrayList(MemoryAccess), | ||
| pattern_cache: std.HashMap(u64, AccessPattern, PatternContext, std.hash_map.default_max_load_percentage), | ||
| temporal_tracker: TemporalTracker, | ||
| spatial_tracker: SpatialTracker, | ||
|
|
There was a problem hiding this comment.
Missing std import in access pattern tracker code block.
This snippet uses std.ArrayList and std.HashMap but lacks const std = @import("std");. Without it the code won’t compile.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-cache-optimization.md around lines 169 to 176, the
code block defining AccessPatternTracker uses std.ArrayList and std.HashMap but
does not import std. Add the line 'const std = @import("std");' at the beginning
of the code block to ensure the standard library is properly imported and the
code compiles.
| const next_addr = @as(i64, @intCast(base_address)) + (@as(i64, @intCast(i)) + 1) * self.stride; | ||
| if (next_addr >= 0) { | ||
| addresses.append(@intCast(next_addr)) catch break; | ||
| } |
There was a problem hiding this comment.
Fix incorrect @intCast usage.
The call @intCast(base_address) is missing the target type. It should be something like:
const next_addr = @as(i64, @intCast(usize, base_address)) + (@as(i64, @intCast(usize, i)) + 1) * self.stride;or more directly:
const next_addr = @intCast(i64, base_address) + (@intCast(i64, i) + 1) * self.stride;🤖 Prompt for AI Agents
In src/evm/prompts/implement-cache-optimization.md around lines 230 to 233, the
usage of @intCast is incorrect because it lacks the target type argument. Fix
this by specifying the target type explicitly in the @intCast calls, for
example, use @intCast(usize, base_address) or directly cast to i64 with
@intCast(i64, base_address). Update both @intCast calls accordingly to ensure
proper type casting.
| pub const CacheFriendlyAllocator = struct { | ||
| backing_allocator: std.mem.Allocator, | ||
| config: CacheOptimizer.CacheConfig, | ||
| aligned_allocations: std.ArrayList(AlignedAllocation), | ||
|
|
||
| pub const AlignedAllocation = struct { |
There was a problem hiding this comment.
Missing std import in cache-friendly allocator code block.
CacheFriendlyAllocator uses std.ArrayList and std.mem, but no const std = @import("std"); is present.
🤖 Prompt for AI Agents
In src/evm/prompts/implement-cache-optimization.md around lines 1161 to 1166,
the code block defining CacheFriendlyAllocator uses std.ArrayList and std.mem
but lacks the import statement for std. Add the line const std = @import("std");
at the beginning of the code block to properly import the standard library and
avoid undefined reference errors.
Description
Concise description of proposed changes
Testing
Explain the quality checks that have been done on the code changes
Additional Information
Your ENS/address:
Summary by CodeRabbit