- Replaced legacy `SWAP`, `INS`, and `PASTE` commands with unified `PUT` and `CUT` hunks across parser, grammar, tokenizer, and test suites.
- Added support for named registers and span paste operations in clipboard and block execution logic.
- Implemented indentation repair and enhanced gap locator formatting for improved patch resilience.
- Updated documentation, system prompts, and session analysis scripts to reflect the new syntax and header shapes.
- Removed copy and delete operations across tokenizer, parser, grammar, and clipboard logic.
- Standardized line-editing operations and block resolvers to use cut exclusively.
- Updated documentation, prompts, and test suites to reflect the removal of copy and delete syntax.
- Added `recoverSectionPathFromTag` to reconcile bare or mismatched `[basename#tag]` paths using existing session snapshots.
- Implemented `readSectionForPreview` to fallback to recovered file paths when the authored path is absent.
- Updated `computeHashlineSectionDiff` to use the path recovery logic during preview content acquisition.
- Removed obsolete regression test file `issue-1765-repro.test.ts`.
Migrate 203 test files (356 call sites) from fs.rm/fs.rmSync to
removeWithRetries/removeSyncWithRetries to reduce EBUSY test failures
on Windows. removeWithRetries is now exported from @oh-my-pi/pi-utils.
The migration uses a regex-based approach that:
- Replaces fs.rm(path, { recursive, force }) → removeWithRetries(path)
- Replaces fs.rmSync(path, { recursive, force }) → removeSyncWithRetries(path)
- Replaces fs.rm(path) → removeWithRetries(path) (no options)
- Skips fs.rm/fs.rmSync inside template literals (bun --eval scripts)
- Adds imports to existing @oh-my-pi/pi-utils import or creates new one
- Removes unused fs imports where fs.rm was the only fs usage (4 files)
- Updated default model identifiers across many catalog providers to newer model versions.
- Renamed a couple OpenAI compatibility provider descriptors, including Together and Zhipu coding-plan identifiers.
- Added multiple new OpenAI-compatible specialized provider descriptors for additional model provider families.
- Added an `insertCursorLine` helper to translate streaming insert cursors into preview line numbers.
- Implemented `buildStreamingSectionDiff` to group resolved edits by operation and emit deletions before insertions, stabilizing streamed cursor progression.
- Updated `computeHashlineSectionDiff` to use the streaming builder when `options.streaming` is enabled, while preserving existing Myers diff behavior for non-streaming paths.
- Replaced `¶path#hash` prefix with `[path#hash]` delimiters across parser, tokenizer, and grammar.
- Updated prompts, docs, and recovery paths to the new bracketed form.
- Added optional `AgentTool.matcherDigest(args)` hook so tools can expose plain source text instead of wire-encoded arguments to TTSR rule matchers.
- Implemented `matcherDigest` on edit (all modes: hashline, patch, apply_patch, replace) and write tools, stripping patch prefixes and JSON escaping.
- Added `TtsrManager.checkSnapshot()` to replace the scoped buffer with a tool digest rather than appending raw deltas.
- Fixed TTSR conditions never matching streamed edit/write calls whose wire format obscured real content.
- Updated hashline preview diffing to route section edits through shared apply/resolve logic and partial streaming parsing.
- Allowed previews to accept live content-hash matches immediately when snapshot records are missing.
- Enabled stale-tag recovery from the snapshot store for anchor-scoped edits and added coverage for snapshot-capture behavior and session-mismatch failures.
- Added a `skipHashValidation` flag to hashline diff options and skipped section hash checks when it is set.
- Updated streaming edit preview generation to set `skipHashValidation` while streaming is active.
- Added streaming preview tests asserting stale hash errors are suppressed during streaming and surfaced after completion.
- Removed `trimTrailingPartialLine` from hashline preview path, as the streaming-tolerant parser already handles partial ops correctly; trimming stripped the sole payload of single-op patches, collapsing the preview to "No changes."
- Broadened trailing-section error suppression to apply during streaming regardless of section count, preventing transient mid-typed ops from wiping stable prior frames.
- Updated hashline streaming preview tests to generate snapshot-tagged section headers and use an in-memory snapshot store.
- Replaced untagged file markers in multi-section preview inputs with `formatHashlineHeader` values derived from recorded file contents.
- Changed the bash command error test to expect a returned `isError` result with exit code 1 instead of a rejected promise.
- Replaced bare `A B` range headers with `replace N..M:`, `delete N..M`, `insert before N:`, `insert after N:`, `insert head:`, and `insert tail:`.
- Removed `&A..B` repeat rows; insert-before/after ops now express the same intent explicitly.
- Empty replace bodies now error instead of deleting; `delete` is the canonical deletion op.
- Updated grammar, prompt, docs, tests, and all call sites to the new syntax.
- Redesigned hashline patch syntax from anchor-based (`A-B:`) to hunk-header format (`@@ A..B @@`) with unified-diff compatibility.
- Removed `autoDropPureInsertDuplicates` option and simplified apply behavior to preserve duplicated boundary and context lines.
- Changed repeat operator from `^A-B` to `&A..B` and range separator from `-` to `..` for consistency with hunk-header syntax.
- Added image resizing and dimension notes to eval tool output; improved write tool hashline header sanitation for legacy formats.
- Removed 521 lines of boundary-duplicate absorption code and simplified parser to auto-convert bare body rows and unified-diff contamination.
- Replaced anchor shorthand syntax with explicit range format (1: -> 1-1:) and removed ^/v sigils in favor of ^A-B repeat and A-B:- delete operations.
- Added repeat edit kind to support ^A-B syntax for copying lines A through B, and inline delete syntax A-B:- for range deletions.
- Removed after_anchor cursor kind and standalone delete rows; empty anchor blocks now produce blank-line replacements instead of deletions.
- Updated parser, tokenizer, and type system to discriminate literal and repeat payloads, and refactored apply/recovery logic to expand repeat edits into individual inserts.
- Updated coding-agent test fixtures and settings documentation to reflect new hashline syntax and behavior.
- Replaced `LINE↑`/`LINE↓`/`A-B:` op sigils with unified `A-B:` anchor + `|`/`↑`/`↓` payload sigils.
- Added `mode: "replacement"` tag to insert edits so the applier distinguishes replace-bucket from insert-bucket lines.
- Removed lenient fallbacks (implicit continuation, inline payload acceptance, escaped delimiter stripping).
- Updated grammar, prompt, tokenizer, parser, applier, and messages to match the new format.
- Updated hashline markers to `¶` headers and `^/v/->` operators across constants, prompts, docs, and tests.
- Reworked hashline grammar and parser to support `ANCHOR<SIGIL>[INLINE_PAYLOAD]` with optional inline bodies and `A-B` ranges.
- Changed range and marker syntax from `..`/`"` to `-` and suffix `^/v/->` forms like `7v` and `A->`.
- Aligned `sameLineRange()` output and BOF/EOF handling so `|TEXT` remains cosmetic and payload now follows the op line.
- Centralized op-line detection by replacing local regex helpers with `isHashlineOpLineText` for payload terminator and bad-op checks.
- Changed hashline format to canonical `§` section headers and `"`/`"`/`≔` operations across grammar, parser, and docs.
- Reworked range and op parsing so single anchors are valid, legacy `-`/`-=` ops error, and empty `≔` payloads now delete ranges.
- Removed legacy `HL_EDIT_SEP`, `$HSEP$`, and `hsep` plumbing, adopting raw payload lines.
- Updated execution, input, renderer, and streaming flows to use `HL_FILE_PREFIX` and `HL_OP_CHARS` helpers.
- Updated session-stats parsing to `§`/`≔`/`"`/`"` format, patch envelopes, and bumped parser versions.
- Removed the hashline-separator benchmark script and its PI_HL_SEP job orchestration.
- Added isStreaming-aware diff options and trimmed-input handling for streaming/non-streaming previews.
- Added helpers to trim trailing partial lines and strip unmatched trailing `-`/`@@` blocks during streaming.
- Reworked apply_patch and hashline preview builders to keep files in input order with per-line added mapping.
- Added streaming preview regression tests and Unreleased Fixed changelog notes for partial-line and ordering fixes.
- Exported hashline section interfaces and helpers, including a new section-diff API for external callers.
- Refactored `computeHashlineDiff` to split input sections, propagate split errors, and delegate each section via helper.
- Added context-highlight caching and batched highlighting for unchanged lines, with `replaceTabs` fallback on unknown files.
- Fixed hashline streaming preview so completed sections stay visible when a new `@PATH` header appears mid-stream.
- Added hashline streaming tests for section persistence, malformed trailing `+ 7`, and dual sections.
- Removed `pi-natives` chunk language classifier modules and all core chunk subsystems (kind, state, render, edit, resolve).
- Removed chunk-mode CLI/read/edit entrypoints, including `read` command and chunk mode registration/prompt tooling.
- Removed chunk selectors from `read` and `grep` tools, switching behavior to raw/L-range handling.
- Fixed poll wait parsing to keep defaulting to `30s` when the provided value is empty.
- Added markdown `Row` chunk support by introducing `ChunkKind::Row`, mapping it to tag `"row"`, and emitting row chunks for table rows.
- Updated Go chunk parsing to support method signatures (`func (recv) Name`), prefer method parsing in signatures, and adjust root rules to classify package/import chunks correctly.
- Changed chunk-edit behavior to add read-only `read:true`, replace `write:null` deletes with explicit `delete`, and require one explicit action per entry.
- Added safer chunk-edit execution with region matching, replacement reindentation, table-row append handling, and stricter warnings/errors for boundary and invalid operations.
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