- Renamed ChunkRegion::Inner variant to Body across Rust and TypeScript for clearer semantics.
- Renamed chunk edit tool parameter from target to sel and made op required instead of optional.
- Removed region aliases (prologue, epilogue, inner) and simplified region validation to accept only head, body, tail.
- Replaced db.exec() calls with db.run() for SQL execution in auth-storage, agent-storage, and history-storage.
- Enhanced chunk edit documentation with comprehensive examples, indentation rules, and CRC refresh guidance.
- Improved chunk statement merging logic to consolidate leaf statements into parent function bodies by default.
- Added Auto QA tool (`report_tool_issue`) for automated tracking of unexpected tool behavior with environment variable and setting support.
- Added Python tool environment warmup on first execution to ensure prelude helpers are available before use.
- Fixed Python prelude introspection to respect execution timeout and signal options, preventing hangs.
- Refactored prelude documentation caching and loading logic into reusable helper functions with test environment awareness.
- Enhanced kernel introspection with optional timeout and signal parameters for better execution control.
- Added system prompt guidance to encourage agents to report tool issues via Auto QA when available.
- Refactored chunk anchor format from bracket notation to marker-based syntax with +++ and --- delimiters.
- Renamed chunk edit regions from @container/@prologue/@body/@epilogue to @head/@inner/@tail for clearer semantics.
- Simplified line-number selector resolution to auto-convert line targets to chunk paths with checksum format.
- Removed PI_DEV debug addon loading logic; PI_DEV now only enables loader diagnostics without changing candidate filenames.
- Added full-name aliases for chunk kind patterns (decls, expr, fn, meth, mod, params, ret, stmts, var) alongside abbreviated forms.
- Refactored sanitize_node_kind() to return &str instead of String; adjusted identifier passing logic across AST modules.
- Refactored chunk tree initialization to use explicit prologue/epilogue byte boundaries instead of None values.
- Extracted chunk resolution logic to use split_selector_crc_and_region() helper for improved code reuse.
- Reorganized package.json exports across multiple modules (autoresearch, cli, dap, edit, modes) for better API surface clarity.
- Updated test expectations for Go receiver method rendering and chunk selector formats to match refactored output.
- Consolidated notebook conversion logic and removed unused _createErrorToolResult helper function.
- Improved leading trivia preservation in chunk edits by detecting and maintaining line prefix whitespace.
- Replaced all Bun.which() calls with $which() utility from @oh-my-pi/pi-utils across 22 files.
- Removed findBashOnPath() wrapper function from procmgr.ts, consolidating binary path resolution.
- Updated AGENTS.md documentation to reflect new $which() API usage pattern.
- Centralized binary detection logic through shared utility, reducing code duplication.
- Added region-based chunk targeting with @container, @prologue, @body, @epilogue selectors for precise edit operations.
- Simplified chunk edit operations from 6 variants to 5 (replace, before, after, prepend, append) with unified region parameter.
- Removed checksum requirement from insert operations; only replace operations require #CRC suffix in selector.
- Added canonical indentation normalization with normalize_indent parameter for consistent tab-based rendering across file types.
- Refactored chunk selector format from separate crc/anchor fields to unified selector#CRC@region syntax for mutations.
- Added UnsupportedRegion status to chunk read operations for explicit handling of region availability per chunk type.
- Reorganized edit tool from `patch/` to `edit/` directory with dedicated mode subdirectories (chunk, patch, hashline, replace).
- Replaced line-scoped edit operations with substring-based `find` parameter and added `replace_body` operation for preserving signatures.
- Added chunk focus modes (Expanded, Collapsed, Container) and focused rendering to display only touched chunks and adjacent siblings.
- Implemented notebook (ipynb) language support with virtual source conversion and cell-based chunk parsing.
- Enhanced chunk edit error messages with consistent checksum mismatch reporting and improved chunk selector auto-resolution.
- Extracted edit mode implementations into separate modules with improved helper functions and LSP integration for diagnostics.
- Added fully-qualified anchor paths in chunk read output showing complete path hierarchy with CRC checksums.
- Added exact chunk selector resolution with CRC validation to enforce canonical chunk paths in edit operations.
- Added `?` selector option to read syntax-aware chunks by canonical path listing when anchor paths are unclear.
- Improved tree-sitter range handling with `end_row_as_line()` function to correctly convert half-open ranges to 1-indexed line numbers.
- Extracted anchor label logic into `chunk_anchor_label()` const function and consolidated style-based selection.
- Removed --dev flag support from native build pipeline and dev:native npm scripts.
- Refactored chunk selector resolution to extract and preserve raw selector strings separately from parsed CRC checksums.
- Reorganized chunk state lookup infrastructure with dedicated maps for checksum, leaf, and suffix-based chunk resolution.
- Simplified batch operation CRC validation to auto-accept stale checksums for subsequent operations on the same chunk.
- Unified TypeScript interface and Nix attrset chunk classification with consistent naming and nested expression handling.
- Extracted clipboard utility functions to dedicated module with improved OSC 52 and Termux support.
- Updated chunk read formatting with anchorStyle parameter and ellipsis standardization for improved consistency.
- Migrated native bindings from TypeScript wrappers to NAPI-RS generated modules with auto-generated type definitions and runtime enums.
- Replaced chunk tree API with stateful ChunkState class supporting render, edit, and resolve operations with improved error handling.
- Converted callback signatures to error-first pattern (error, result) for shell, PTY, glob, and grep operations.
- Introduced type-safe enums for MacOSAppearance, GrepOutputMode, KeyEventType, ImageFormat, and AstMatchStrictness replacing string literals.
- Refactored chunk tree implementation with dedicated modules for edit, indent, resolve, and state management with comprehensive validation.
- Moved clipboard utilities from native bindings to coding-agent package with improved OSC 52 and Termux compatibility.
- Added `anchorStyle` setting ("full", "kind", "bare") to control anchor name verbosity in chunk output.
- Changed anchor tag delimiters from `` to `[…]` and gutter separator from `│` to `|`.
- Changed edit response to render only changed hunks with context instead of the full chunk tree.
- Fixed zero-width insert detection to derive target indent from neighboring lines instead of replaced range.
- Improved indent selection for body-level insertions by picking deeper indent between two neighbors.
- Updated error messages to clarify insert vs splice operations and line range validation.
- Modified assertChecksum() return type to handle cases with default CRC and no explicit selector.
- Distributed language-specific AST classification logic from defaults module to individual language modules for 15+ languages.
- Simplified defaults module to minimal catch-all fallbacks, removing 341 lines of match-based classification logic.
- Consolidated chunk edit operations by removing splice operation and unifying with line-scoped replace parameters.
- Simplified chunk rendering output format by reducing thresholds and changing line count display from 'lines' to 'ln' suffix.
- Removed PI_CHUNK_SPLICES environment variable and chunkSplicesEnabled conditional logic throughout codebase.
- Migrated test mocking from bun:test mock API to vitest spyOn pattern across 9 test files.
- Extracted mock setup logic into reusable helper functions with Symbol.dispose cleanup pattern.
- Replaced manual beforeEach/afterEach and try-finally blocks with TypeScript 5.2 using declarations.
- Removed 178 lines of boilerplate mock initialization and restoration code from test suite.
- Renamed hashline operation types for clarity: append->append_at, prepend->prepend_at, append_eof->append_file, prepend_bof->prepend_file.
- Updated all operation type references in patch implementation, tests, and documentation to reflect new naming convention.
- Restructured hashline tool documentation with hierarchical sections and simplified examples for improved clarity.
- Consolidated validation rules and added explicit warning about invalid anchors and operation/field combinations.
- Added autoresearch extension with autonomous experiment loop supporting init, run, and log experiment tools for metric-driven optimization.
- Added widget placement system enabling extensions to position UI components above or below the editor via ExtensionWidgetOptions.
- Added dashboard controller with interactive overlay for viewing experiment results, metrics, and progress with keyboard navigation.
- Removed auto-correction logic for off-by-one range edits in hashline editor to preserve user intent in patch operations.
- Added state reconstruction utilities to parse autoresearch.jsonl logs and rebuild experiment state across sessions.
- Added comprehensive type definitions and helper utilities for metric parsing, ASI validation, and process management.
- Changed bash interceptor configuration from boolean flags to customizable pattern-based rules array.
- Clarified hashline range replace semantics: end parameter is now strictly exclusive boundary.
- Fixed bash interceptor to apply built-in default rules when no custom patterns are configured.
- Updated hashline range validation and calculations to enforce exclusive end semantics throughout.
- Added auto-reconnect capability for MCP servers with SSE stream monitoring and exponential retry backoff.
- Added tool-level reconnect handling for retriable connection errors (ECONNREFUSED, ECONNRESET, 404/502/503).
- Added `/mcp reconnect <name>` command for manual MCP server recovery.
- Improved reconnect robustness by aborting retries when MCP configuration changes via epoch checking.
- Extended transport reconnect handling to all transport types (stdio, HTTP/SSE) with unified onClose logic.
- Added comprehensive test coverage for MCPManager reconnect behavior and tool-level abort propagation.
- Added line hashes to compact diff preview for unchanged and added lines to enable integrity verification.
- Modified compact diff preview to track line number synchronization between old and new files when processing insertions and deletions.
- Fixed line number parsing in compact diff preview to handle variable-width line number fields with leading whitespace.
- Extracted parsing and formatting logic into dedicated functions (parseNumberedDiffLine, formatCompactHashlineLine, syncOldLineCounters, syncNewLineCounters) for maintainability.
- Updated 4 test cases to verify line hash generation, line number synchronization, and handling of variable-width fields.
- Fixed line normalization to trim trailing whitespace and strip carriage returns instead of removing all whitespace.
- Fixed no-op detection to check array length equality before comparing lines, preventing false classification of multi-line expansions.
- Added clarification to hashline tool documentation on `replace` operation semantics and `lines` boundary constraints.
- Added test case validating single-line to multi-line expansion behavior and firstChangedLine calculation.
* fix(patch): HASHLINE_PREFIX_RE strips comment lines with word: pattern
The regex used [0-9a-zA-Z]{1,16} for the hash ID segment, which matched
common comment patterns like '# Note:', '# TODO:', '# FIXME:'. When a
single-line replacement contained such a comment, nonEmpty===1 and
hashPrefixCount===1, triggering stripping and eating the comment prefix.
Actual hashline IDs are always exactly 2 chars from ZPMQVRWSNKTXJBYH.
Constrain the regex to that exact alphabet so no English word can match.
Also update tests that used fake IDs (AB, CD, EF) not in the real alphabet.
* test(patch): add regression tests for comment line prefix stripping bug
Three new tests in hashlineParseContent describe block:
- hashlineParseText preserves '# Word:' comment lines (unit)
- full pipeline: replacing '# Note:' comment line preserves prefix
- full pipeline: replacing '# TODO:' comment line preserves prefix
These would have caught the HASHLINE_PREFIX_RE bug where [0-9a-zA-Z]{1,16}
matched comment words, causing stripNewLinePrefixes to eat the '# Note:'
prefix when a single comment line was the sole replacement entry.
---------
Co-authored-by: Miroslav Drbal <miroslav.drbal@gendigital.com>
- Extracted fetch mocking logic into reusable `hookFetch()` utility function with middleware-style handler pattern.
- Replaced manual `globalThis.fetch` assignment and restoration across 10 test files with `hookFetch()` calls using `using` statement for automatic cleanup.
- Implemented Disposable pattern with Symbol.dispose for fetch hook resource management, eliminating try-finally blocks.
- Exported `hookFetch` from utils public API to enable consistent fetch mocking across packages.
- Added incremental history mode to OpenAI responses .
- Changed OpenAI Codex to exclusively use websockets v2 protocol with fatal error detection for automatic SSE fallback.
- Fixed Gemini model parsing to strip `-preview` suffix for consistent model identification across API calls.
- Improved websocket error handling to extract and report detailed error messages from error events.
- Removed deprecated BETA_RESPONSES_WEBSOCKETS constant and websocket v2 feature flag branching logic.
- Added serviceTier option to OpenAI providers for controlling processing priority and cost across agent, completions, responses, and codex APIs.
- Added providerPayload field to messages for transport-native history reconstruction in OpenAI Responses and Codex APIs.
- Added /fast slash command and serviceTier setting to coding-agent for toggling OpenAI priority mode with fast mode indicator.
- Added remote compaction support with encrypted reasoning preservation for OpenAI models in coding-agent.
- Removed usage caching layer across all providers and refactored UsageFetchContext to eliminate cache and now dependencies.
- Fixed OpenAI Codex streaming service_tier inclusion, provider retry logic with exponential backoff, and email-based credential deduplication.
- Added auto-correction logic for off-by-one range start errors in hashline edits.
- Added safety check to prevent false-positive auto-correction when position already includes boundary.
- Added test coverage for off-by-one range correction and duplicate leading line handling.
- Extracted turn-aborted-guidance prompt to external markdown file for better maintainability.
- Added buildCompactHashlineDiffPreview() function to generate collapsed diff previews for tool responses.
- Enhanced EditTool response to include diff summary with added/removed line counts and compact preview.
- Added project-level discovery for .agent/ and .agents/ directories walking up to repository root.
- Implemented helper functions for truncating long diff runs (collapseFromStart, collapseFromEnd, collapseFromMiddle).
- Refactored hlineref Handlebars helper to return JSON-quoted strings for safer JSON embedding in prompts.
- Improved hashlineParseText to preserve blank lines and trailing empty strings while normalizing line endings.
- Optimized duplicate line detection in range replacements using trimmed comparison to reduce whitespace false positives.
- Added auto-correction for escaped tab indentation in edits via PI_HASHLINE_AUTOCORRECT_ESCAPED_TABS environment variable.
- Added warning detection for suspicious Unicode escape placeholder \uDDDD in edit content.
- Clarified hashline documentation that \t in JSON represents real tab characters, not literal backslash-t strings.
- Added comprehensive test coverage for escaped tab auto-correction and Unicode escape detection.
Clarify inclusive end semantics in the hashline prompt with bad/good examples.
Add range-replace duplicate-boundary auto-correction with a safety guard so correction only triggers for off-by-one ends.
Expand hashline heuristics tests to cover brace/); correction, blank-line guard, and boundary-already-in-range false-positive prevention.
- Consolidated @oh-my-pi/pi-utils subpath imports into single package root import across 100+ files.
- Moved tryParseJson utility from local web scrapers module to @oh-my-pi/pi-utils package for centralized JSON parsing.
- Renamed loadSkillsFromDir to scanSkillsFromDir and refactored skill discovery to use fs.promises.readdir instead of glob-based approach.
- Replaced custom parseJSON with tryParseJson across discovery modules for consistent error handling.
- Removed emitCustomToolSessionEvent method and cleanupSshResources function, consolidating shutdown logic into dispose method.
- Updated glob pattern construction to use GlobBuilder with literal_separator(true) for improved path handling.
DIFF_PLUS_RE matched both '+' and '-' (unified-diff markers), but '-'
is also a valid Markdown/YAML list prefix. When all replacement lines
start with '- ', the 50%-threshold heuristic in stripNewLinePrefixes
fires and strips every leading '-', corrupting list-item content.
Narrow the regex to match only '+' (added-line markers), which is the
stated intent of the docstring and the safe strip target. Removed
lines ('-') are never valid replacement content in any case.
Reproducer: passing content=["- [x] item"] as a bare string to a
set/replace op — the '-' is silently dropped, writing ' [x] item'.
Passing content as string[] bypasses stripNewLinePrefixes entirely and
was the workaround, but the root cause should be fixed.
- Consolidated truncation and output utilities from tools/truncate.ts and tools/output-utils.ts into session/streaming-output.ts with improved UTF-8 boundary handling.
- Renamed formatSize() to formatBytes() across codebase for consistency and clarity in byte-level formatting.
- Refactored OutputSink to use windowed byte truncation instead of full-buffer encoding, improving memory efficiency on large outputs.
- Migrated from Buffer to Uint8Array in web scrapers for better cross-platform compatibility and native browser support.
- Added getArtifactManager() lazy-initialization method to ToolSession for deferred artifact manager instantiation.
- Simplified API surface with wildcard exports from tools and session modules, reducing import complexity.
- Changed hashline format separator from pipe (|) to colon (:) for improved readability across all tools and output formats.
- Refactored hashline edit API with operation-based structure: renamed delete->rm, rename->mv, set->target/new_content, and added explicit op field for operation types.
- Updated hashline hash encoding from 4-character base36 to 2-character hexadecimal for more compact representation.
- Replaced anchor terminology with tags throughout hashline documentation and API for clearer semantics.
- Redesigned hashline edit API with new operation names (set, set_range, insert) and structured body parameter accepting string arrays for multiline edits.
- Changed hashline reference format from LINE:HASH to LINE#ID throughout tools and documentation for improved clarity.
- Enhanced insert operation to support optional before/after anchors enabling flexible insertion positioning and boundary echo stripping.
- Made hashline autocorrect heuristics conditional on PI_HL_AUTOCORRECT environment variable for controlled behavior.
- Added benchmark reports for claude-haiku-4-5 and GPT-5.2-Codex models demonstrating hashline edit variant performance.
- Added provider failure detection and exponential backoff retry logic to handle authentication and authorization errors in benchmark tasks.
- Implemented HashlineMismatchError behavior in coding-agent to fail on stale hash references instead of silently relocating edits.
- Simplified hashline validation by removing automatic line relocation logic and hash tracking infrastructure.
- Added benchmark report for claude-sonnet-4-6 model showing 85% task success rate with detailed failure analysis and performance metrics.
- Replaced all direct `process.cwd()` calls with `getProjectDir()` utility function across 40+ files to centralize project directory resolution logic.
- Added `getProjectDir()` and `setProjectDir()` functions to `@oh-my-pi/pi-utils/dirs` module to provide abstracted project directory management.
- Made `SessionManager.list()` method asynchronous to support asynchronous session discovery operations.
- Updated default working directory resolution throughout codebase to use `getProjectDir()` instead of `process.cwd()` for improved project directory detection.
- Extracted directory path utilities from multiple packages into a centralized '@oh-my-pi/pi-utils/dirs' module.
- Moved 30+ path helper functions (getAgentDir, getConfigRootDir, getPluginsDir, getMCPConfigPath, etc.) from scattered locations into a single shared utility module.
- Consolidated APP_NAME, CONFIG_DIR_NAME, and VERSION constants into the centralized dirs module for reuse across packages.
- Updated 70+ import statements across packages/ai, packages/coding-agent, packages/stats, and packages/tui to use the new centralized module.
- Removed local path construction logic and replaced with utility function calls for improved maintainability and consistency.
- Deleted packages/coding-agent/src/extensibility/plugins/paths.ts as its functions were moved to the centralized dirs module.
- Removed support for `.pi` configuration directory alias in favor of `.omp` across all packages.
- Updated all configuration paths and references from `.pi` to `.omp` in user and project directories.
- Refactored configuration discovery in builtin.ts to simplify directory traversal logic and remove multi-alias support.
- Simplified Python module discovery to use single directory paths instead of arrays of aliases.
- Updated debug and crash log paths from `.pi/agent/` to `.omp/agent/` in TUI package.
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