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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased] - 2026-04-10

[v1.8.6] - 2026-04-10

Fixed

web_search Tool

  • Issue #25 Fix: The web_search tool now returns an error when unknown parameters are passed (e.g., engine instead of engines). Previously, unknown parameters were silently ignored, causing confusion when users specified the wrong field name.

Changed

  • engines parameter type changed from string to array in schema to match actual API
  • Updated a3s-search integration to v1.0.0

[v1.8.5] - 2026-04-05

Added

Git Built-in Tool

  • Built-in Git Client: New git tool with auto-install support for Windows, macOS, and Linux. Downloads official pre-built git binaries to ~/.local/git/bin/ when git is not available - no package manager required.

    Full git operations: status, log, branch, checkout, diff, stash, remote, worktree

  • Git Convenience Methods: Python SDK (session.git(...)) and Node SDK (session.git(...)) convenience methods for git operations.

System Prompt Updates

  • Updated all system prompts to reference "A3S Code" instead of "Claude Code"
  • Updated skill references to use a3s-lab/code-skills

Removed

  • Document Parser: Removed composite_document_parser and document modules and all related code. This feature was not fully implemented and has been removed to simplify the codebase.

  • Agentic Search/Parse Tools: Removed agentic_search and agentic_parse built-in tools.

  • Git Worktree Tool: Replaced by the new unified git tool with worktree subcommand.

Changed

  • Tool Count: Updated built-in tool count from 15 to 16 to reflect new git and box tools.
  • Documentation: Updated all documentation to reflect new tool names and capabilities.

[v1.6.0] - 2026-04-02

Added

Document Parsing

  • XLSB (Excel Binary) Support: Added calamine-based BIFF12 parsing for XLSB files with proper cell value extraction, supporting Float, Int, Bool, DateTime, DateTimeIso, and DurationIso types. Significantly improves table fidelity for .xlsb files.

  • HWPX Table Extraction: Added structured table extraction from Korean HWPX documents. Parses tbl/tr/tc XML hierarchy and includes structured_payload for tables[] output.

  • Vision OCR Provider: New OCR backend supporting OpenAI-compatible vision APIs for document OCR fallback.

    document_parser {
  ocr {
    enabled  = true
    model    = "openai/gpt-4.1-mini"
    api_key  = "sk-..."
    base_url = "https://api.openai.com/v1"  # optional
    prompt   = "Extract all text from this document..."
    max_images = 8
    dpi     = 144
  }
}

    Provider priority: External provider > Vision API (if model+api_key configured) > Builtin tesseract

Search Ranking

  • Tabular Query Intent Detection: Automatically detects when queries relate to tables (keywords: table, column, row, spreadsheet, excel, csv, cell, data, record, etc.) and boosts table line matches by +10 keyword hits plus 1.3x relevance multiplier.

  • Heading Inheritance Boost: When search matches appear under headings that also match the query, those matches receive a relevance boost (up to 1.3x). Looks backwards to find the closest preceding heading.

Changed

Configuration

  • DocumentOcrConfig extended with new fields:
    • provider: Option<String> - Backend selection ("vision" or "builtin")
    • base_url: Option<String> - Custom API endpoint
    • api_key: Option<String> - API authentication

Dependencies

  • Added calamine = "0.26" for XLSB parsing
  • Added reqwest/blocking feature for Vision API HTTP calls

Fixed

  • Test assertion: paged_text_blocks_reflow_two_column_preserves_paragraph_breaks - Corrected expected string "Parser metadata now tracks OCR" vs "Parser metadata now tracks OCR backend"

[v1.5.8] - 2026-03-07

Added

  • Phase 1 structured result surfaces:

    • structured_payload exposed in agentic_parse output and metadata
    • Table payloads in stable machine-readable form
    • Page-level data in agentic_parse output and metadata
    • Stable tables[], pages[], elements[] outputs

  • Phase 2 PDF extraction improvements:

    • lopdf position-aware text extraction
    • Reduced dependence on weak text fallbacks
    • Position-aware table detection

  • agentic_search enhancements:

    • Chunk context consumption
    • Tabular content consumption
    • Page numbers and locators support

Changed

  • ParsedDocument extended with tables: Vec<StructuredTable> and pages: Vec<PageInfo>

Fixed

  • Windows shell compatibility improvements

[v1.5.7] - 2026-02-28

Added

  • Runtime session header support for OpenAI configs
  • Cross-platform environment variable expansion in tests

[v1.5.6] - 2026-02-20

Added

  • Enhanced agent config, document parser, LLM, tools, and SDKs
  • Host shell environment propagation to tool commands

[v1.5.5] - 2026-02-10

Added

  • Zhipu AI client (ZhipuClient formerly GlmClient)
  • Duplicate tool call circuit breaker
  • Streaming fallback support
  • agentic_parse skill

[v1.5.4] - 2026-01-28

Added

  • Session-local skill registries

[v1.5.3] - 2026-01-15

Added

  • Tool schema hardening
  • Slash command output restoration