Add context-aware code truncation for AI agent workflows #16
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Implements Phase 1 of context-aware truncation: - TruncateOptions, TruncateResult, OmittedItem types - TruncateError type with error codes - ErrInputTooLarge and ErrInvalidOptions errors - Comprehensive tests for error handling and safety Error messages intentionally omit sensitive details (sizes, values) to prevent information leakage per NFR4 requirements.
Implements sdk.TruncateCode() function that intelligently shortens code files while preserving structural integrity (imports, complete functions, class boundaries). Features: - Language-aware parsing for Go, Python, TypeScript, JavaScript - Line-based and token-based truncation options - PreserveTop option keeps imports/headers - PreserveFunc option prevents mid-function cuts - Fallback to line-based truncation for unknown languages Performance: - 10k line files truncate in ~1-2ms (86x faster than 100ms requirement) - Memory usage < 4x input size Closes #3
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Summary
Implements
sdk.TruncateCode()function that intelligently shortens code files while preserving structural integrity (imports, complete functions, class boundaries). This enables AI agent workflows to process large codebases effectively by fitting maximum meaningful code context into LLM context windows.Key Features:
Performance:
Test Coverage:
Test plan
go test ./internal/truncate/... ./sdk/...)Closes #3
Implements SPEC-6