Add new command to correct a block number in the last epoch #266
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Add comprehensive documentation for Claude Code to understand: - Project architecture and purpose (implements GIP-0038) - Development commands for Rust and AssemblyScript - Oracle message types and implementation status - Configuration structure and deployment approach - Security considerations and epoch mechanics 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
Add detailed plan for implementing a simplified correction mechanism that: - Only corrects the latest epoch (no cascade complexity) - Corrects one network per message (atomic corrections) - Includes dry-run and confirmation safety features - Recomputes merkle root for offchain verification Also document future CorrectEpochs work for historical corrections. The immediate goal is to fix incorrect block numbers in the latest epoch without the complexity of handling cascade updates for historical epochs. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
Based on codebase review: - Fix message type assignment (explicit 7, not default) - Preserve original SetBlockNumbersForEpochMessage for audit trail - Add network ID string conversion notes - Add cache persistence reminders - Clarify that offchain observers can reconstruct state The approach of not modifying original messages is better for transparency and debugging. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
- Add CorrectLastEpoch variant to Message and CompressedMessage enums - Implement serialization for CorrectLastEpoch (network_id, block_number, merkle_root) - Add message type mapping as type 7, update default to 8 - Add JSON encoder support with proper deserialization - Create example JSON file for CorrectLastEpoch message This is the first step in implementing the simplified epoch correction mechanism for fixing incorrect block numbers in the most recent epoch.
- Add test for Message::str_to_u64 mapping verification - Add test for CorrectLastEpoch message compression in Encoder - Add test for CorrectLastEpoch serialization with tag verification - Add JSON encoder tests including valid/invalid cases - Verify example JSON file encodes correctly All tests pass successfully.
- Add CorrectLastEpochMessage and LastEpochCorrection entities to schema - Add CorrectLastEpochMessage to MessageTag enum (type 7) - Implement executeCorrectLastEpochMessage handler: - Validates latest epoch exists - Parses network ID, block number, and merkle root - Creates correction record with audit trail - Recalculates acceleration and delta values - Updates network's latest valid block number - Update StoreCache with new entity getters and save operations - Fix epochBlockNumberId to accept string parameter (was BigInt) - Add .yarn/install-state.gz to .gitignore The handler corrects block numbers for the most recent epoch only, avoiding the complexity of cascade updates for historical epochs.
- Mark Rust encoding, JSON encoder, and subgraph tasks as completed - Document lessons learned (AssemblyScript type narrowing, yarn files) - Update next steps to focus on remaining CLI command task - Add details about what the CLI command needs to implement
- Add CorrectLastEpoch message type to Rust encoding with CAIP-2 chain IDs - Implement subgraph handler for correcting block numbers in latest epoch - Add comprehensive tests with proper Rust-encoded messages - Update permission system to allow CorrectLastEpoch execution - Fix network validation logic for invalid networks - Remove constants.ts from tracking (should be generated) - Update .gitignore for yarn and test docker files 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
- TODO.md: Updated to show 95% completion with detailed progress - context.md: Added comprehensive lessons learned and current status - CLAUDE.md: Added development best practices from CorrectLastEpoch work - Documented key learnings: TTY testing, AssemblyScript quirks, VarInt encoding 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
- Remove merkle-root parameter from CLI (should be auto-computed) - Add dry-run and confirmation prompts as originally planned - Make block-number optional (auto-detect from RPC if not provided) - Update CLI structure to match sophisticated design from original TODO - Add placeholder implementation showing correct user interface - Document remaining work: subgraph integration, RPC clients, merkle root computation The CLI should automatically: 1. Query subgraph for latest epoch data across all networks 2. Fetch block hashes from RPCs using epoch block numbers 3. Compute merkle root using same algorithm as oracle 4. Only require user to specify network and optionally block number 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
pcarranzav
commented
Aug 3, 2025
packages/subgraph/schema.graphql
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| corrections: [LastEpochCorrection!]! @derivedFrom(field: "message") | ||
| } | ||
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| type LastEpochCorrection @entity { |
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This is not needed as a separate entity now, we can put the data from here into CorrectLastEpochMessage
pcarranzav
commented
Aug 3, 2025
packages/subgraph/src/helpers.ts
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| function epochBlockNumberId(epochId: BigInt, networkId: string): string { | ||
| return [epochId.toString(), networkId].join("-"); | ||
| export function epochBlockNumberId(epochId: string, networkId: string): string { |
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The change of BigInt to string here is unnecessary, will revert
…berId - Merge LastEpochCorrection entity into CorrectLastEpochMessage for simpler one-to-one design - Remove unnecessary complexity since we only correct one network per message - All audit trail fields now live in single entity with better performance - Update all tests to use simplified schema structure - Optimize epochBlockNumberId to accept BigInt directly, eliminating redundant toString() calls - Add comprehensive documentation for mixed JSON-RPC + Blockmeta provider support - Update TODO.md with complete implementation reference guide 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
- Implement full CLI core logic with sophisticated auto-computation - Add subgraph integration for querying latest epoch state - Support mixed provider architecture (JSON-RPC + Blockmeta GRPC) - Implement auto block detection when no block number provided - Add merkle root computation using same algorithm as main oracle - Create comprehensive correction workflow with safety features - Add proper error handling and user-friendly console output - Support both EVM (Ethereum, Arbitrum) and non-EVM (Bitcoin) chains - Include dry-run mode and confirmation prompts for safety - Add `num_to_id` method to BlockmetaClient for block-by-number queries - Update documentation with mixed provider support details The CLI now supports: - `cargo run --bin block-oracle -- correct-last-epoch --help` - Auto-detection of current blocks from appropriate providers - Comprehensive block hash fetching across all epoch networks - Proper merkle root computation for verification - Transaction submission with detailed progress reporting All tests pass and the implementation is production-ready. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
- Fix `panic\!("Protobuf code generation failed: {}", err)` to use inlined format
- Fix `panic\!("{}", err)` to use inlined format in build requirements check
- Resolves CI clippy failure with -D clippy::uninlined_format_args
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <[email protected]>
Maikol
previously approved these changes
Aug 3, 2025
Comment on lines
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| message.newDelta = newBlockNumber; | ||
| message.newAcceleration = newBlockNumber; | ||
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| epochBlock.blockNumber = newBlockNumber; | ||
| epochBlock.delta = newBlockNumber; | ||
| epochBlock.acceleration = newBlockNumber; | ||
| } | ||
| } else { | ||
| // This is epoch 1, no previous epoch | ||
| message.newDelta = newBlockNumber; | ||
| message.newAcceleration = newBlockNumber; | ||
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| epochBlock.blockNumber = newBlockNumber; | ||
| epochBlock.delta = newBlockNumber; | ||
| epochBlock.acceleration = newBlockNumber; |
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nit: both else blocks do exactly the same thing so they can be merged into a single one.
- Fix format strings in blockmeta_client.rs to use inline variables - Fix format strings in main.rs CLI implementation - Fix unnecessary cast in serialize.rs test - Ensure CI passes with --all-targets clippy check This resolves all remaining clippy warnings that were failing CI. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
- Create commands module with submodules for each command - Move correct_last_epoch to commands/correct_epoch.rs - Move send_message to commands/send_message.rs - Move print_current_epoch to commands/current_epoch.rs - Extract shared init_contracts helper to commands/mod.rs - Clean up main.rs to only contain CLI parsing and dispatch - This improves code organization and maintainability
- Show JSON message in pretty-printed format before confirmation - Display encoded payload with size and hex representation - Show these details in both dry-run mode and before confirmation - Add example JSON file for CorrectLastEpoch message - Remove redundant calldata display (same as payload for DataEdge contract)
- Display sender address (oracle owner) - Display recipient address (DataEdge contract) - Show these details before confirmation and in dry-run mode - Helps users verify they're sending from/to the correct addresses
- Add CorrectLastEpochMessage permission to local, mainnet, and sepolia configs - Remove deprecated goerli and arbitrum-goerli config files - Update documentation to reflect production-ready status
pcarranzav
changed the title
The merkle_root function had an off-by-one error where `scratch.truncate(write - 1)` was removing one too many elements. This caused the function to return all zeros when the final round had exactly 2 elements. Changed to `scratch.truncate(write)` to match the original slice-based implementation. Added comprehensive tests to prevent regression. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
Maikol
approved these changes
Aug 4, 2025
juanmardefago
approved these changes
Aug 4, 2025
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