- Disabled strict schema enforcement on AskTool to relax request validation.
- Removed the optional `cwd` field from Python tool parameters and used `session.cwd` for warmup and execution context.
- Updated atom edit test fixtures to pass `set` as arrays instead of scalar strings.
- Added locator-based atom edits with required `loc`, including inline `file:line`, range, and `^`/`$` selectors.
- Added path resolution via top-level path, entry path, or `path:loc` selectors and flattened multi-target atom execution.
- Removed `del`; required `set/pre/post` to use line arrays and mapped `set: []` to deletion semantics.
- Changed `sub` payloads to required `[find, replace]` tuples and tightened parsing to accept null optional verbs and array-or-null lines.
- Added `CodeFrameMarker` and `formatCodeFrameLine()` to centralize code-frame gutter formatting.
- Extended diff rendering to preserve `|` and `│` separators, aligning gutter markers and line numbers.
- Reworked AST, grep, hashline, Vim, and diff renderers to use shared line formatting with computed `lineNumberWidth`.
- Updated atom editing flow and tests, including `resolveAtomEntryPaths` migration and new loc-based/edge-case coverage.
- Adjusted benchmark runner early-stop configuration by passing `buildEarlyStop` through prompt collection.
- Changed hashline/atom parsing to require full `line+suffix` anchors and emit full-anchor guidance on failures.
- Updated atom/hashline prompt docs, `atom.test.ts`, and changelog entries to require exact full anchors like `160sr`.
- Added preformatted `displayContent` for read/grep/ast tools and switched renderers to prefer it in TUI output.
- Updated mismatch and grep/ast renderers to show context with `*` markers and gutter lines, removing legacy helpers.
- Expanded hashline and chunk bigram tables to 647 entries and moved chunk checksums to a 40-item namespace.
- Changed hashline anchors from `LINE#ID`/`:` to concatenated `LINEID`\t forms across parsing and tool outputs.
- Removed line-number padding and routed diff/read/grep/renderer output through raw numbers, tabs, and `toDisplayLine` formatting.
- Renamed atom ops to `pre`/`post`, removed `ins`, and updated schemas, prompts, and tests for new insertion behavior.
- Updated the atom edit schema and tool prompt docs to replace the standalone `between` form with a 2-tuple `set` form for exclusive block-body replacement.
- Adjusted `resolveAtomToolEdit` so `set` accepts either a single anchor or `[open, close]`, translates tuple input to an internal between-style op, and rejects tuple values that are not anchor strings.
- Expanded tests to verify tuple-based `set` resolution and to enforce validation errors for invalid `set` array inputs.
- Added `between` atom edits with `after`/`before` anchors and logged them in changelog docs.
- Added `between` docs to prompt tooling, including two-anchor exception and anchor-order rules.
- Added `between` validation to reject stale anchors, invalid ranges, overlap, and nested interior edits.
- Reworked `applyAtomEdits` to apply `between` operations as bottom-up interior splices and adjacent-line inserts.
- Updated `file_path` schema description in review tool to "Path to the file".
- Added `AtomEdit` tests for `between` parsing and edge-case success/failure coverage.
- Added raw read output propagation so read/archive commands bypass anchors, line numbers, and chunk formatting.
- Fixed atom/hashline editing by tightening hashline prefixes and applying grouped anchor edits in stable order.
- Hardened chunk parsing and path handling by using `bigram_end` checks and resolving edit paths via shared `args.path` fallback.
- Updated path-related behavior for chunk, replace, patch, and hashline previews to honor optional edit paths.
- Removed mode-level param validators and replaced them with runtime handling, then removed obsolete validation tests.
- Added `atom` edit mode to `EditTool` with single-point hashline-style dispatch and `executeAtomSingle`.
- Added `AtomToolEdit`/`AtomParams` schema and `atom` prompt docs to require one op per edit entry.
- Changed `EditTool` entry processing to inherit per-entry `path` from a top-level request `path` fallback.
- Added top-level `path` defaults to patch and replace schemas and now reject missing entry paths.
- Added an `atom` streaming strategy and registered it in `EDIT_MODE_STRATEGIES` for live mode support.
- Enabled hashline read anchors for `atom` mode via `file-display-mode.ts` path-display logic.
- Added `atom` unit tests covering schema checks, anchor conflicts, and hash mismatch diagnostics.
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