refactor(tools): migrate execution logic to src/agent_tools/ package with handler registry (#3435)

* refactor(tools): implement strict cohesive class coordinator pattern per #2917

* test: update edit_file tests to use EditFileTool class

* fix(tools): restore tool_policy param and security backstop in coordinator

* refactor(tools): migrate domain tools to agent_tools package per #2917

* test: update test imports for new agent_tools package

* fix: resolve circular import between tool_execution and agent_tools

* fix: remove leftover git conflict markers

* fix(tools): resolve pytest failure and document _apply method

* fix(tools): clean up whitespace and remove dead _tool_python helper

---------

Co-authored-by: Alexandre Teixeira <111787685+alteixeira20@users.noreply.github.com>
This commit is contained in:
Maanas
2026-06-09 19:05:36 +05:30
committed by GitHub
parent 35b4dd2824
commit c1674fc2aa
7 changed files with 760 additions and 708 deletions
+419
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@@ -0,0 +1,419 @@
import asyncio
import json
import os
import difflib
import fnmatch
import shutil
from typing import Optional, Dict, Any, Tuple
from src.constants import MAX_READ_CHARS, MAX_DIFF_LINES, MAX_OUTPUT_CHARS
_CODENAV_SKIP_DIRS = frozenset({
".git", ".hg", ".svn", "node_modules", "venv", ".venv", "__pycache__",
".mypy_cache", ".pytest_cache", ".ruff_cache", "dist", "build",
".next", ".cache", "site-packages", ".idea", ".tox",
})
_CODENAV_MAX_HITS = 200
_CODENAV_MAX_LINE = 400
def _unified_diff(old: str, new: str, path: str) -> Optional[Dict[str, Any]]:
if old == new:
return None
old_lines = old.splitlines()
new_lines = new.splitlines()
label = path or "file"
diff_lines = list(difflib.unified_diff(
old_lines, new_lines,
fromfile=f"a/{label}", tofile=f"b/{label}",
lineterm="",
))
added = sum(1 for line in diff_lines if line.startswith("+") and not line.startswith("+++"))
removed = sum(1 for line in diff_lines if line.startswith("-") and not line.startswith("---"))
truncated = False
if len(diff_lines) > MAX_DIFF_LINES:
diff_lines = diff_lines[:MAX_DIFF_LINES]
truncated = True
text = "\n".join(diff_lines)
if truncated:
text += f"\n… diff truncated at {MAX_DIFF_LINES} lines"
return {
"text": text,
"added": added,
"removed": removed,
"new_file": old == "",
"file": os.path.basename(path) or (path or "file"),
}
class EditFileTool:
async def execute(self, content: str, ctx: dict) -> dict:
from src.tool_execution import (
_resolve_tool_path,
_resolve_tool_path_in_workspace,
_resolve_search_root,
_truncate
)
workspace = ctx.get("workspace")
try:
args = json.loads(content) if content.strip().startswith("{") else {}
except (json.JSONDecodeError, TypeError):
args = {}
raw_path = (args.get("path") or "").strip()
old = args.get("old_string", "")
new = args.get("new_string", "")
replace_all = bool(args.get("replace_all", False))
if not raw_path:
return {"error": "edit_file: path required", "exit_code": 1}
try:
path = (_resolve_tool_path_in_workspace(workspace, raw_path)
if workspace else _resolve_tool_path(raw_path))
except ValueError as e:
return {"error": f"edit_file: {e}", "exit_code": 1}
if old == "":
return {"error": "edit_file: old_string required (use write_file to create a file)", "exit_code": 1}
if old == new:
return {"error": "edit_file: old_string and new_string are identical", "exit_code": 1}
def _apply():
"""Helper function that performs the actual string replacement and file writing logic."""
with open(path, "r", encoding="utf-8") as f:
original = f.read()
count = original.count(old)
if count == 0:
return original, None, "not_found"
if count > 1 and not replace_all:
return original, None, f"not_unique:{count}"
updated = original.replace(old, new) if replace_all else original.replace(old, new, 1)
with open(path, "w", encoding="utf-8") as f:
f.write(updated)
return original, updated, "ok"
try:
original, updated, status = await asyncio.to_thread(_apply)
except FileNotFoundError:
return {"error": f"edit_file: {path}: not found (use write_file to create it)", "exit_code": 1}
except (IsADirectoryError, UnicodeDecodeError):
return {"error": f"edit_file: {path}: not an editable text file", "exit_code": 1}
except PermissionError:
return {"error": f"edit_file: {path}: permission denied", "exit_code": 1}
except OSError as e:
return {"error": f"edit_file: {path}: {e}", "exit_code": 1}
if status == "not_found":
return {"error": f"edit_file: old_string not found in {path}. Read the file and match it exactly.", "exit_code": 1}
if status.startswith("not_unique"):
n = status.split(":", 1)[1]
return {"error": f"edit_file: old_string is not unique in {path} ({n} matches). Add surrounding context or set replace_all=true.", "exit_code": 1}
n = original.count(old)
result = {"output": f"Edited {path} ({n} replacement{'s' if n != 1 else ''})", "exit_code": 0}
diff = _unified_diff(original, updated, path)
if diff:
result["diff"] = diff
return result
class ReadFileTool:
async def execute(self, content: str, ctx: dict) -> dict:
from src.tool_execution import (
_resolve_tool_path,
_resolve_tool_path_in_workspace,
_resolve_search_root,
_truncate
)
workspace = ctx.get("workspace")
raw_path, offset, limit = content.split("\n", 1)[0].strip(), 0, 0
_stripped = content.strip()
if _stripped.startswith("{"):
try:
_a = json.loads(_stripped)
raw_path = str(_a.get("path", "")).strip()
offset = int(_a.get("offset") or 0)
limit = int(_a.get("limit") or 0)
except (json.JSONDecodeError, TypeError, ValueError):
pass
try:
path = (_resolve_tool_path_in_workspace(workspace, raw_path)
if workspace else _resolve_tool_path(raw_path))
except ValueError as e:
return {"error": f"read_file: {e}", "exit_code": 1}
try:
def _read():
if offset > 0 or limit > 0:
start = max(offset, 1)
out, n, budget = [], 0, MAX_READ_CHARS
with open(path, "r", encoding="utf-8", errors="replace") as f:
for i, line in enumerate(f, 1):
if i < start:
continue
if limit > 0 and n >= limit:
break
out.append(line)
n += 1
budget -= len(line)
if budget <= 0:
out.append(f"\n... [truncated at {MAX_READ_CHARS} chars]")
break
return "".join(out)
with open(path, "r", encoding="utf-8", errors="replace") as f:
return f.read(MAX_READ_CHARS + 1)
data = await asyncio.to_thread(_read)
except FileNotFoundError:
return {"error": f"read_file: {path}: not found", "exit_code": 1}
except PermissionError:
return {"error": f"read_file: {path}: permission denied", "exit_code": 1}
except IsADirectoryError:
return {"error": f"read_file: {path}: is a directory (use ls)", "exit_code": 1}
except OSError as e:
return {"error": f"read_file: {path}: {e}", "exit_code": 1}
if not (offset > 0 or limit > 0) and len(data) > MAX_READ_CHARS:
data = data[:MAX_READ_CHARS] + f"\n... [truncated at {MAX_READ_CHARS} chars]"
return {"output": data, "exit_code": 0}
class WriteFileTool:
async def execute(self, content: str, ctx: dict) -> dict:
from src.tool_execution import (
_resolve_tool_path,
_resolve_tool_path_in_workspace,
_resolve_search_root,
_truncate
)
workspace = ctx.get("workspace")
lines = content.split("\n", 1)
raw_path = lines[0].strip()
body = lines[1] if len(lines) > 1 else ""
try:
path = (_resolve_tool_path_in_workspace(workspace, raw_path)
if workspace else _resolve_tool_path(raw_path))
except ValueError as e:
return {"error": f"write_file: {e}", "exit_code": 1}
try:
def _write():
old = ""
try:
with open(path, "r", encoding="utf-8") as f:
old = f.read()
except (FileNotFoundError, IsADirectoryError, UnicodeDecodeError, OSError):
old = ""
d = os.path.dirname(path)
if d:
os.makedirs(d, exist_ok=True)
with open(path, "w", encoding="utf-8") as f:
f.write(body)
return old, len(body)
old_content, size = await asyncio.to_thread(_write)
except PermissionError:
return {"error": f"write_file: {path}: permission denied", "exit_code": 1}
except OSError as e:
return {"error": f"write_file: {path}: {e}", "exit_code": 1}
diff = _unified_diff(old_content, body, path)
result = {"output": f"Wrote {size} bytes to {path}", "exit_code": 0}
if diff:
result["diff"] = diff
return result
class LsTool:
async def execute(self, content: str, ctx: dict) -> dict:
from src.tool_execution import (
_resolve_tool_path,
_resolve_tool_path_in_workspace,
_resolve_search_root,
_truncate
)
workspace = ctx.get("workspace")
raw_path = ""
_s = (content or "").strip()
if _s.startswith("{"):
try:
raw_path = str(json.loads(_s).get("path", "")).strip()
except json.JSONDecodeError:
raw_path = ""
else:
raw_path = _s.split("\n", 1)[0].strip()
try:
root = _resolve_search_root(raw_path)
except ValueError as e:
return {"error": f"ls: {e}", "exit_code": 1}
def _ls():
if not os.path.isdir(root):
return None, f"ls: {root}: not a directory"
rows = []
try:
with os.scandir(root) as it:
for entry in it:
if entry.name.startswith("."):
continue
try:
is_dir = entry.is_dir(follow_symlinks=False)
size = entry.stat(follow_symlinks=False).st_size if not is_dir else 0
except OSError:
continue
rows.append((is_dir, entry.name, size))
except (PermissionError, OSError) as _e:
return None, f"ls: {_e}"
rows.sort(key=lambda r: (not r[0], r[1].lower()))
lines = [f"{root}:"]
for is_dir, name, size in rows[:_CODENAV_MAX_HITS]:
lines.append(f" {name}/" if is_dir else f" {name} ({size} B)")
if len(rows) > _CODENAV_MAX_HITS:
lines.append(f" ... [{len(rows) - _CODENAV_MAX_HITS} more]")
if not rows:
lines.append(" (empty)")
return "\n".join(lines), None
out, err = await asyncio.to_thread(_ls)
if err:
return {"error": err, "exit_code": 1}
return {"output": _truncate(out), "exit_code": 0}
class GlobTool:
async def execute(self, content: str, ctx: dict) -> dict:
from src.tool_execution import (
_resolve_tool_path,
_resolve_tool_path_in_workspace,
_resolve_search_root,
_truncate
)
workspace = ctx.get("workspace")
args = {}
_s = (content or "").strip()
if _s.startswith("{"):
try:
args = json.loads(_s)
except json.JSONDecodeError:
args = {}
else:
args = {"pattern": _s}
pattern = str(args.get("pattern", "")).strip()
if not pattern:
return {"error": "glob: pattern is required", "exit_code": 1}
try:
root = _resolve_search_root(str(args.get("path", "")))
except ValueError as e:
return {"error": f"glob: {e}", "exit_code": 1}
def _glob():
from pathlib import Path
base = Path(root)
if not base.is_dir():
return None, f"glob: {root}: not a directory"
matched = []
try:
for p in base.rglob(pattern):
if set(p.relative_to(base).parts) & _CODENAV_SKIP_DIRS:
continue
try:
mtime = p.stat().st_mtime
except OSError:
mtime = 0
matched.append((mtime, str(p)))
if len(matched) > _CODENAV_MAX_HITS * 5:
break
except (OSError, ValueError) as _e:
return None, f"glob: {_e}"
matched.sort(key=lambda t: t[0], reverse=True)
return [pth for _, pth in matched[:_CODENAV_MAX_HITS]], None
paths, err = await asyncio.to_thread(_glob)
if err:
return {"error": err, "exit_code": 1}
if not paths:
return {"output": f"No files matching {pattern!r} under {root}", "exit_code": 0}
out = "\n".join(paths)
if len(paths) >= _CODENAV_MAX_HITS:
out += f"\n... [capped at {_CODENAV_MAX_HITS} files]"
return {"output": _truncate(out), "exit_code": 0}
class GrepTool:
async def execute(self, content: str, ctx: dict) -> dict:
from src.tool_execution import (
_resolve_tool_path,
_resolve_tool_path_in_workspace,
_resolve_search_root,
_truncate
)
workspace = ctx.get("workspace")
args: Dict[str, Any] = {}
_s = (content or "").strip()
if _s.startswith("{"):
try:
args = json.loads(_s)
except json.JSONDecodeError:
args = {}
else:
args = {"pattern": _s}
pattern = str(args.get("pattern", "")).strip()
if not pattern:
return {"error": "grep: pattern is required", "exit_code": 1}
ignore_case = bool(args.get("ignore_case"))
glob_pat = str(args.get("glob", "") or "").strip()
try:
max_hits = int(args.get("max_results") or _CODENAV_MAX_HITS)
except (TypeError, ValueError):
max_hits = _CODENAV_MAX_HITS
max_hits = max(1, min(max_hits, _CODENAV_MAX_HITS))
try:
root = _resolve_search_root(str(args.get("path", "")))
except ValueError as e:
return {"error": f"grep: {e}", "exit_code": 1}
def _grep():
import re as _re
import shutil
rg = shutil.which("rg")
if rg:
cmd = [rg, "--line-number", "--no-heading", "--color=never",
"--max-count", str(max_hits)]
if ignore_case:
cmd.append("--ignore-case")
if glob_pat:
cmd += ["--glob", glob_pat]
for _d in _CODENAV_SKIP_DIRS:
cmd += ["--glob", f"!**/{_d}/**"]
cmd += ["--regexp", pattern, root]
try:
import subprocess
p = subprocess.run(cmd, capture_output=True, text=True, timeout=20)
lines = [ln for ln in (p.stdout or "").splitlines() if ln][:max_hits]
return lines, None
except subprocess.TimeoutExpired:
return None, "grep: timed out"
except Exception as _e:
return None, f"grep: {_e}"
try:
rx = _re.compile(pattern, _re.IGNORECASE if ignore_case else 0)
except _re.error as _e:
return None, f"grep: bad pattern: {_e}"
hits = []
if os.path.isfile(root):
file_iter = [root]
else:
file_iter = []
for dp, dns, fns in os.walk(root):
dns[:] = [d for d in dns if d not in _CODENAV_SKIP_DIRS]
for fn in fns:
if glob_pat and not fnmatch.fnmatch(fn, glob_pat):
continue
file_iter.append(os.path.join(dp, fn))
for fp in file_iter:
if len(hits) >= max_hits:
break
try:
with open(fp, "r", encoding="utf-8", errors="strict") as f:
for i, line in enumerate(f, 1):
if rx.search(line):
hits.append(f"{fp}:{i}:{line.rstrip()[:_CODENAV_MAX_LINE]}")
if len(hits) >= max_hits:
break
except (UnicodeDecodeError, OSError):
continue
return hits, None
lines, err = await asyncio.to_thread(_grep)
if err:
return {"error": err, "exit_code": 1}
if not lines:
return {"output": f"No matches for {pattern!r} under {root}", "exit_code": 0}
out = "\n".join(ln[:_CODENAV_MAX_LINE] for ln in lines)
if len(lines) >= max_hits:
out += f"\n... [capped at {max_hits} matches]"
return {"output": _truncate(out), "exit_code": 0}