- Migrated all environment variable access from Node.js `process.env` to Bun runtime `Bun.env` API across the entire codebase.
- Updated 71 files including source code, tests, documentation, and configuration to use Bun's native environment variable API.
- Added comprehensive environment variables documentation in `packages/coding-agent/docs/environment-variables.md` covering 100+ environment variables organized by category.
- Updated CHANGELOG entries to reflect migration from `process.env` to `Bun.env` and environment variable prefix changes (PI_* vs OMP_*).
- Maintained identical behavior and logic across all changes - only the environment variable access method was updated.
- Migrated environment variable access from direct process.env to centralized getEnv() utility function across all packages.
- Renamed environment variable prefix from OMP_ to PI_ throughout codebase (e.g., OMP_CODING_AGENT_DIR -> PI_CODING_AGENT_DIR).
- Removed automatic environment variable migration from PI_ to OMP_ prefixes via migrate-env.ts module.
- Removed env setting from configuration schema and applyEnvironmentVariables() method from settings.
- Updated CI/CD build configuration to use PI_COMPILED flag instead of OMP_COMPILED.
- Changed venvPath property in PythonRuntime from nullable (string | null) to optional (string | undefined).
- Refactored ExecutablePathSearch to remove generic type parameter N and use pre-computed filename candidates instead of single filename.
- Extracted platform-specific candidate_filenames() functions to generate executable filename variants on Windows and Unix-like systems.
- Replaced manual PATH string splitting with std::env::split_paths() for cross-platform path parsing.
- Simplified find_in_path() method to delegate to pathsearch::search_for_executable() instead of custom path searching logic.
- Implemented executable_extensions() function with lazy initialization to parse PATHEXT environment variable on Windows.
- Enhanced executable() method to validate file extensions against known executable extensions instead of returning hardcoded true.
- Replaced SettingsManager class with new Settings singleton providing synchronous get/set API and background persistence.
- Introduced settings-schema.ts as single source of truth for all configuration definitions with 100+ settings organized into logical groups.
- Migrated from method-based settings access (getTheme(), setTheme()) to path-based access using dot notation (settings.get('theme'), settings.set('theme', value)).
- Removed 2035-line settings-manager.ts file and replaced with modular settings.ts (693 lines) and settings-schema.ts (836 lines) for improved maintainability.
- Unified settings schema into single source of truth eliminating duplicate definitions across settings-defs.ts and settings-manager.ts.
- Added persistent shell session support for bash tool with environment variable preservation across commands.
- Added shellForceBasic setting to force bash/sh even if user's default shell is different (default: true).
- Added OMP_SHELL_PERSIST environment variable to control persistent shell behavior (set to 0 to disable).
- Restructured system prompt with coordinator-specific guidance for parallel task delegation.
- Fixed incorrect byte and line limit calculations in file read tool that were applying user limits to total selected content instead of just user-limited content.
- Updated test to use SettingsManager.getGlobalShellConfig() instead of shell.getShellConfig() for consistent shell configuration access.
- Reorganized import statements across multiple files for consistency and alphabetical ordering.
- Changed firstLinePreviewChunks from let to const in read tool since it is only mutated via array methods.
- Added ToolChoice type and toolChoice parameter support across all AI providers (OpenAI, Azure OpenAI, Anthropic, Google) enabling fine-grained control over tool/function selection during LLM calls.
- Added toolChoice override capability to Agent.prompt() method and session prompt options allowing callers to control tool selection behavior per request.
- Added provider-specific tool choice mapping functions (mapAnthropicToolChoice, mapGoogleToolChoice, mapOpenAiToolChoice) to normalize tool choice formats across different LLM APIs.
- Removed kernel heartbeat/ping mechanism from PythonKernel, simplifying health monitoring by relying on direct isAlive() checks instead of periodic HTTP requests.
- Removed Prettier configuration files (.prettierignore and .prettierrc) and migrated formatting to Biome.
- Updated Biome configuration from version 2.3.11 to 2.3.12 and changed arrowParentheses rule from 'always' to 'asNeeded'.
- Pinned @biomejs/biome dependency to exact version 2.3.12 in package.json and bun.lock.
- Applied consistent arrow function formatting across 489 files by removing unnecessary parentheses around single parameters.
- Removed blank lines after comment blocks and reorganized imports for consistency across the codebase.
- Changed loadCustomModels from async to sync using fs.readFileSync for immediate resolution.
- Updated discoverModels to return synchronously, removing await from main.ts, pipeline.ts, and commit index.ts.
- Migrated sdk.ts to use node:fs instead of node:fs/promises for synchronous operations.
- Refactored scanDirectoryForSkills to use recursive traversal instead of batch Promise.all.
- Added tarball Dockerfile for testing npm publish/install flow with verdaccio registry.
- Converted named imports from node modules (fs, path, os) to namespace imports across all packages.
- Extended extension loader error handling with isEacces and hasFsCode type guards.
- Converted readdirSync, readFileSync, and statSync to async readdir, readFile, stat across skills and agent discovery.
- Made scanDirectoryForSkills async and refactored custom directory scanning to use Promise.all for concurrent processing.
- Updated agent discovery to use fs/promises for async file reading and refactored helper patterns.
- Added AgentParsingError exception class for better error handling during agent parsing.
- Added filesystem error type guards (isEnoent, isEacces, isPerm, etc.) to pi-utils for safe error checking.
- Added color manipulation utilities to pi-utils for accessibility features.
- Added color-blind mode setting to settings manager.
- Migrated plugins, settings, and config modules from sync to async file operations.
- Updated error handling to use new pi-utils type guards for type-safe checking.
- Removed WASM generation script; use Bun `wasm?raw` loader for imports.
- Added bunfig.toml with loaders for `.md`, `.py`, and `.wasm?raw` text imports.
- Added types/assets/index.d.ts for global TypeScript module declarations.
- Unified TypeScript configuration with tsgo-based checking across monorepo.
- Removed build and WASM steps from install and publish pipelines.
- Added tsconfig.publish.json files to all packages with optimized publish-time configuration.
- Updated all package.json scripts with prepublishOnly hooks for correct type checking during publish.
- Added @oh-my-pi/omp-stats path mappings to root tsconfig.json for consistent imports.
- Added WASM generation script for photon module and integrated into install:dev script.
- Added antigravity provider support for image generation with Google Cloud authentication.
- Added support for google-antigravity API credentials in model registry.
- Added antigravity-specific request handling with SSE streaming.
- Added projectId parameter to antigravity credentials parsing.
- Added antigravity provider to preferred image provider selection.
- converted relative imports to path aliases ($c/*, $ai/*, $tui/*, etc.) across all packages
- added per-package tsconfig.json with complete path mappings for runtime resolution
- set importModuleSpecifier to non-relative for IDE auto-import preferences
- updated dev script to run from monorepo root for consistent path resolution
- Added output-utils module with tail buffer and artifact allocation helpers.
- Added tool-result module for standardized tool result construction with metadata.
- Replaced inline output truncation with structured metadata system across all tools.
- Updated executors to track detailed output statistics instead of full file paths.
- Standardized artifact storage using pre-allocated paths instead of inline writing.
- Simplified Python gateway coordination by removing reference counting and idle timeout functionality.
- Updated Python kernel initialization to support environment variable setup and working directory configuration.
- Modified interactive status display to show Python and venv paths instead of client counts.
- Updated system prompt to clarify CHECKPOINT step 0 timing after user request completion.
- Added artifact storage system with artifact:// URL protocol for truncated outputs.
- Added structured output metadata system with OutputMetaBuilder for consistent notices.
- Added standardized tool error types (ToolError, MultiError, ToolAbortError).
- Updated all tools to use structured metadata instead of inline notices.
- Removed activeForm field from TodoItem interface and simplified todo display logic.
- Converted dynamic imports to static imports in installer and exa tools.
- Renamed task parameter from vars to args throughout task tool interface.
- Simplified task template validation by removing strict placeholder requirements.
- Added multi-cell Python execution with sequential processing in persistent kernel.
- Changed Python tool API to use cells array instead of single code parameter.
- Renamed workdir parameter to cwd across Bash and Python tools for consistency.
- Fixed indentation adjustment logic for mixed indentation levels in patch tool.
- Removed voice control and TTS features from coding-agent package.
- Removed git tool integration and worktree management from coding-agent.
- Deleted entire git-tool package and all git operations.
- Inlined OpenAI Codex prompt utilities and removed provider exports.
- Changed timeout parameter from seconds to milliseconds in Python tool.
- Updated PythonExecutorOptions interface to use timeoutMs instead of timeout.
- Improved streaming output handling by removing async queuing and simplifying buffer management.
- Updated default timeout to 30000ms for Python tool execution.
- Created new @oh-my-pi/pi-utils workspace package with shared utilities for logging, process management, stream handling, and temporary directory management.
- Migrated all packages to use centralized logger from @oh-my-pi/pi-utils instead of local winston implementations.
- Replaced custom process spawning and stream reading implementations with standardized cspawn and readLines utilities across all modules.
- Converted synchronous file operations and process spawning to async patterns using Bun shell syntax and fs/promises.
- Added streaming edit abort functionality with configurable setting to abort on patch preview failures.
- Updated test framework from vitest to bun:test across all test suites.
- Enhanced patch applicator with fallback variant generation and improved fuzzy matching.
- Added support for ellipsis placeholders, top-of-file anchors, and comment-prefix normalization.
- Renamed operation and moveTo parameters to op and rename across patch tool interfaces.
- Added batch processing system to benchmark runner for parallel task execution.
- Added comprehensive benchmark reports for Claude Haiku and GPT-5.1-codex-mini models.
- Added new @oh-my-pi/react-edit-benchmark package for React source code mutation testing.
- Added --no-title flag to disable automatic session title generation in coding-agent.
- Changed default behavior of read tool to omit line numbers by default.
- Added environment variable support for edit tool configuration and fuzzy matching.
- Updated test files to use import.meta.dir for ES module compatibility.
- Added Prettier configuration and CI improvements for private package handling.
Previously, substring context matching required the pattern to be at least
30% of the line length to prevent ambiguous matches. This caused failures
when matching short identifiers like 'class EditTool' against long export
lines with generics and implements clauses.
Now, if exactly one substring match exists in the file, it is accepted
regardless of the ratio threshold - uniqueness alone is sufficient for
disambiguation. The ratio filter is only applied when multiple substring
matches exist.
Added regression tests for model edit attempts from session analysis.
- Added support for nested @@ context anchors and hierarchical context matching.
- Enhanced patch parser to handle @@ line N syntax and multiple context accumulation.
- Improved diff rendering and error messages with hierarchical context display.
- Added comprehensive regression tests for model-generated patch formats.
- Converted all tool implementations from factory functions to class-based architecture.
- Updated SDK exports to expose tool classes instead of create*Tool factory functions.
- Refactored tool instantiation patterns across all built-in tools and test files.
- Added proper TypeScript typing with AgentToolResult and AgentToolUpdateCallback interfaces.
- Added comprehensive apply-patch mode for edit tool with create, update, delete, rename operations.
- Converted edit tool from factory function to class-based implementation with improved API.
- Enhanced patch application with ambiguity detection, fuzzy matching, and better error handling.
- Added line ending preservation, BOM handling, and trailing newline policy for file formatting.
- Added validation for empty oldText and multi-file patch rejection to improve reliability.
- Refactored edit tool implementation with modular patch architecture.
- Moved edit tool implementation from edit/ to patch/ module.
- Updated import paths for EditToolDetails across core modules.
- Enhanced patch parsing with unified diff and Codex-style patch support.
- Improved fuzzy matching algorithms for more robust text location.
- Moved test files from src/core to test/core directory.
- Moved test files from src/core/tools to test/tools directory.
- Moved test files from src/discovery to test/discovery directory.
- Updated import paths to reflect new test file locations.
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