cosmos/evm
May 2025 – Nov 2025
7 Months active
Languages Used
AssemblyGoSolidityDockerfileJavaScriptMakefilePythonShell
Technical Skills
AuthorizationBackend DevelopmentBlockchainBlockchain DevelopmentCosmos SDKERC20
Haber
PROFILE
Haber
Worked on the cosmos/evm repository, delivering core features and infrastructure improvements for Ethereum-compatible smart contract execution on Cosmos. Over seven months, contributed to EVM precompile architecture, account abstraction, and robust JSON-RPC compatibility, using Go, Solidity, and the Cosmos SDK. Refactored state management and error handling, integrated precisebank for fractional balances, and enhanced mempool reliability through comprehensive testing. Improved developer experience by streamlining the build pipeline and modularizing test infrastructure, enabling safer deployments and easier maintenance. Focused on interoperability, test automation, and reducing dependencies, the work strengthened blockchain reliability, facilitated cross-chain wallet operations, and improved integration with external Ethereum tooling.
Overall Statistics
Feature vs Bugs
65%Features
Repository Contributions
32Total
Bugs
7
Commits
32
Features
13
Lines of code
45,130
Activity Months7
Your Network
29 peopleSame Organization
@bharvest.io3
Shared Repositories
26
Work History
November 2025
4 Commits • 1 Features
Nov 1, 2025Monthly summary for 2025-11 focusing on test infrastructure stabilization and interface refactor for cosmos/evm. Delivered a more reliable and maintainable test harness by removing authz dependencies from the test suite and EvmApp interface, modularizing the test app interface, and eliminating unnecessary keeper dependencies in tests. Also improved test balance checks and overall test structure to reduce flakiness. These changes enable testing across multiple chain binaries, improve CI confidence, and accelerate iteration on core EVM features.
4 Commits • 1 Features
Nov 1, 2025Monthly summary for 2025-11 focusing on test infrastructure stabilization and interface refactor for cosmos/evm. Delivered a more reliable and maintainable test harness by removing authz dependencies from the test suite and EvmApp interface, modularizing the test app interface, and eliminating unnecessary keeper dependencies in tests. Also improved test balance checks and overall test structure to reduce flakiness. These changes enable testing across multiple chain binaries, improve CI confidence, and accelerate iteration on core EVM features.
November 2025
October 2025
9 Commits • 3 Features
Oct 1, 2025October 2025 for cosmos/evm focused on delivering high-value features, strengthening test coverage, and improving interoperability with external tooling. Key work included comprehensive EIP-7702 account abstraction testing, API/tooling enhancements aligned with Geth v1.16.3, mempool/test infrastructure improvements, and diligent changelog maintenance.
October 2025
9 Commits • 3 Features
Oct 1, 2025October 2025 for cosmos/evm focused on delivering high-value features, strengthening test coverage, and improving interoperability with external tooling. Key work included comprehensive EIP-7702 account abstraction testing, API/tooling enhancements aligned with Geth v1.16.3, mempool/test infrastructure improvements, and diligent changelog maintenance.
September 2025
5 Commits • 2 Features
Sep 1, 20252025-09 Monthly Summary for cosmos/evm: Focused on reliability, safety, and test coverage to reduce production risk and enable safer user-operations in the live chain. Activities centered on mempool robustness, expanded integration and end-to-end testing, cross-chain wallet interactions, and crypto type safety. These efforts improved transaction validity checks, enhanced test coverage for complex scenarios, and strengthened readiness for wallet/contract operations across multiple chain IDs.
5 Commits • 2 Features
Sep 1, 20252025-09 Monthly Summary for cosmos/evm: Focused on reliability, safety, and test coverage to reduce production risk and enable safer user-operations in the live chain. Activities centered on mempool robustness, expanded integration and end-to-end testing, cross-chain wallet interactions, and crypto type safety. These efforts improved transaction validity checks, enhanced test coverage for complex scenarios, and strengthened readiness for wallet/contract operations across multiple chain IDs.
September 2025
August 2025
4 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary focusing on reliability, interoperability, and data integrity for Cosmos EVM. Delivered core improvements to the build pipeline, expanded JSON-RPC compatibility testing, and refined balance handling across precompiles with precisebank integration. These efforts enhanced developer productivity, reduced build failures, and strengthened Ethereum-compatible interfaces for broader interoperability.
August 2025
4 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary focusing on reliability, interoperability, and data integrity for Cosmos EVM. Delivered core improvements to the build pipeline, expanded JSON-RPC compatibility testing, and refined balance handling across precompiles with precisebank integration. These efforts enhanced developer productivity, reduced build failures, and strengthened Ethereum-compatible interfaces for broader interoperability.
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025: Focused on hardening the precompile execution path and standardizing behavior across evm modules. Delivered stack-based StateDB snapshots for precompile calls in x/vm and introduced BalanceHandler to centralize native balance updates for precompiled contracts, improving reliability and maintainability. Fixed revert data handling across precompiled contracts with consistent error reporting (ErrExecutionReverted) and updated tests. Standardized consensus version to 1 across x/erc20, x/feemarket, and x/vm to prevent drift. Overall, increased reliability of precompile interactions, improved correctness of error reporting, and reduced cross-module version drift, enabling safer deployments and easier maintenance. Demonstrated Go-based module development, advanced state management with multi-store snapshots, precompile architecture improvements, and cross-team collaboration for testing and refactoring.
4 Commits • 1 Features
Jul 1, 2025July 2025: Focused on hardening the precompile execution path and standardizing behavior across evm modules. Delivered stack-based StateDB snapshots for precompile calls in x/vm and introduced BalanceHandler to centralize native balance updates for precompiled contracts, improving reliability and maintainability. Fixed revert data handling across precompiled contracts with consistent error reporting (ErrExecutionReverted) and updated tests. Standardized consensus version to 1 across x/erc20, x/feemarket, and x/vm to prevent drift. Overall, increased reliability of precompile interactions, improved correctness of error reporting, and reduced cross-module version drift, enabling safer deployments and easier maintenance. Demonstrated Go-based module development, advanced state management with multi-store snapshots, precompile architecture improvements, and cross-team collaboration for testing and refactoring.
July 2025
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for cosmos/evm: Delivered a refactor of EVM precompile execution to a journal-based revert model, integrating revert handling directly into the gas error path and removing unnecessary state constructs. This work removes the unused Snapshot type and eliminates RunAtomic calls, simplifying the precompile flow and improving maintainability.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for cosmos/evm: Delivered a refactor of EVM precompile execution to a journal-based revert model, integrating revert handling directly into the gas error path and removing unnecessary state constructs. This work removes the unused Snapshot type and eliminates RunAtomic calls, simplifying the precompile flow and improving maintainability.
May 2025
5 Commits • 2 Features
May 1, 2025May 2025 performance highlights for cosmos/evm: Implemented key features and essential bug fixes in the EVM precompiles, enhancing token governance, validator incentives, and developer experience. Removed x/authz dependency to enable direct ERC20 allowance management and refactored precompiles and tests accordingly. Extended the distribution precompile with interfaces for DepositValidatorRewardsPool and CommunityPool balance queries, improving funding paths for validator rewards and visibility into community resources. Addressed SDK compatibility and correctness issues across precompiles, including method naming, data types, and commission parameters, to improve reliability and reduce integration risk. Overall, these changes strengthen business value by reducing dependencies, enabling clearer token governance, and improving SDK interoperability and validator economics.
5 Commits • 2 Features
May 1, 2025May 2025 performance highlights for cosmos/evm: Implemented key features and essential bug fixes in the EVM precompiles, enhancing token governance, validator incentives, and developer experience. Removed x/authz dependency to enable direct ERC20 allowance management and refactored precompiles and tests accordingly. Extended the distribution precompile with interfaces for DepositValidatorRewardsPool and CommunityPool balance queries, improving funding paths for validator rewards and visibility into community resources. Addressed SDK compatibility and correctness issues across precompiles, including method naming, data types, and commission parameters, to improve reliability and reduce integration risk. Overall, these changes strengthen business value by reducing dependencies, enabling clearer token governance, and improving SDK interoperability and validator economics.
May 2025
Activity
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Quality Metrics
Correctness89.8%
Maintainability86.0%
Architecture84.0%
Performance76.8%
AI Usage23.2%
Skills & Technologies
Programming Languages
AssemblyDockerfileGoJSONJavaScriptMakefileMarkdownPythonShellSolidity
Technical Skills
API DevelopmentAPI IntegrationAccount AbstractionAuthorizationBackend DevelopmentBlockchainBlockchain DevelopmentCI/CDConsensus MechanismsCosmos SDKCryptographyDevOpsDockerDocumentationERC20
Repositories Contributed To
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