feat(context): Interactive Text Slice Highlighting with Fuzzy Anchors

src/aggregate.py

@@ -124,6 +124,7 @@ def build_file_items(base_dir: Path, files: list[str | dict[str, Any]]) -> list[
     ast_signatures = entry_raw.get("ast_signatures", False)
     ast_definitions = entry_raw.get("ast_definitions", False)
     ast_mask = entry_raw.get("ast_mask", {})
+    custom_slices = entry_raw.get("custom_slices", [])
    elif hasattr(entry_raw, "path"):
     entry = entry_raw.path
     tier = getattr(entry_raw, "tier", None)
@@ -132,6 +133,7 @@ def build_file_items(base_dir: Path, files: list[str | dict[str, Any]]) -> list[
     ast_signatures = getattr(entry_raw, "ast_signatures", False)
     ast_definitions = getattr(entry_raw, "ast_definitions", False)
     ast_mask = getattr(entry_raw, "ast_mask", {})
+    custom_slices = getattr(entry_raw, "custom_slices", [])
    else:
     entry = entry_raw
     tier = None
@@ -140,11 +142,12 @@ def build_file_items(base_dir: Path, files: list[str | dict[str, Any]]) -> list[
     ast_signatures = False
     ast_definitions = False
     ast_mask = {}
+    custom_slices = []
    if not entry or not isinstance(entry, str):
     continue
    paths = resolve_paths(base_dir, entry)
    if not paths:
-    items.append({"path": None, "entry": entry, "content": f"ERROR: no files matched: {entry}", "error": True, "mtime": 0.0, "tier": tier, "auto_aggregate": auto_aggregate, "force_full": force_full, "ast_signatures": ast_signatures, "ast_definitions": ast_definitions, "ast_mask": ast_mask})
+    items.append({"path": None, "entry": entry, "content": f"ERROR: no files matched: {entry}", "error": True, "mtime": 0.0, "tier": tier, "auto_aggregate": auto_aggregate, "force_full": force_full, "ast_signatures": ast_signatures, "ast_definitions": ast_definitions, "ast_mask": ast_mask, "custom_slices": custom_slices})
     continue
    for path in paths:
     try:
@@ -159,7 +162,7 @@ def build_file_items(base_dir: Path, files: list[str | dict[str, Any]]) -> list[
      content = f"ERROR: {e}"
      mtime = 0.0
      error = True
-    items.append({"path": path, "entry": entry, "content": content, "error": error, "mtime": mtime, "tier": tier, "auto_aggregate": auto_aggregate, "force_full": force_full, "ast_signatures": ast_signatures, "ast_definitions": ast_definitions, "ast_mask": ast_mask})
+    items.append({"path": path, "entry": entry, "content": content, "error": error, "mtime": mtime, "tier": tier, "auto_aggregate": auto_aggregate, "force_full": force_full, "ast_signatures": ast_signatures, "ast_definitions": ast_definitions, "ast_mask": ast_mask, "custom_slices": custom_slices})
   return items
 
 
@@ -284,6 +287,24 @@ def build_tier3_context(file_items: list[dict[str, Any]], screenshot_base_dir: P
       is_focus = True
       break
    original = entry if entry and "*" not in entry else (str(path) if path else (entry or "unknown"))
+   
+   slices = item.get('custom_slices', [])
+   if slices and not item.get('error'):
+    from src.fuzzy_anchor import FuzzyAnchor
+    resolved_blocks = []
+    content = item.get('content', '')
+    suffix = path.suffix.lstrip(".") if path and path.suffix else "text"
+    for slc in slices:
+     range_res = FuzzyAnchor.resolve_slice(content, slc)
+     if range_res:
+      s, e = range_res
+      lines = content.splitlines()
+      resolved_blocks.append("\n".join(lines[s-1:e]))
+    if resolved_blocks:
+     combined = "\n\n... [LINES SKIPPED] ...\n\n".join(resolved_blocks)
+     sections.append(f"### `{original}` (Slices)\n\n```{suffix}\n{combined}\n```")
+     continue # Skip full file logic
+
    if is_focus or tier == 3 or force_full:
     suffix = path.suffix.lstrip(".") if path and path.suffix else "text"
     sections.append(f"### `{original}`\n\n```{suffix}\n{content}\n```")