hermes-agent/acp_adapter/tools.py
2026-04-17 13:29:26 -07:00

379 lines
13 KiB
Python

"""ACP tool-call helpers for mapping hermes tools to ACP ToolKind and building content."""
from __future__ import annotations
import json
import uuid
from typing import Any, Dict, List, Optional
import acp
from acp.schema import (
ToolCallLocation,
ToolCallStart,
ToolCallProgress,
ToolKind,
)
# ---------------------------------------------------------------------------
# Map hermes tool names -> ACP ToolKind
# ---------------------------------------------------------------------------
TOOL_KIND_MAP: Dict[str, ToolKind] = {
# File operations
"read_file": "read",
"write_file": "edit",
"patch": "edit",
"search_files": "search",
# Terminal / execution
"terminal": "execute",
"process": "execute",
"execute_code": "execute",
# Web / fetch
"web_search": "fetch",
"web_extract": "fetch",
# Browser
"browser_navigate": "fetch",
"browser_click": "execute",
"browser_type": "execute",
"browser_snapshot": "read",
"browser_vision": "read",
"browser_scroll": "execute",
"browser_press": "execute",
"browser_back": "execute",
"browser_get_images": "read",
# Agent internals
"delegate_task": "execute",
"vision_analyze": "read",
"image_generate": "execute",
"text_to_speech": "execute",
# Thinking / meta
"_thinking": "think",
}
def get_tool_kind(tool_name: str) -> ToolKind:
"""Return the ACP ToolKind for a hermes tool, defaulting to 'other'."""
return TOOL_KIND_MAP.get(tool_name, "other")
def make_tool_call_id() -> str:
"""Generate a unique tool call ID."""
return f"tc-{uuid.uuid4().hex[:12]}"
def build_tool_title(tool_name: str, args: Dict[str, Any]) -> str:
"""Build a human-readable title for a tool call."""
if tool_name == "terminal":
cmd = args.get("command", "")
if len(cmd) > 80:
cmd = cmd[:77] + "..."
return f"terminal: {cmd}"
if tool_name == "read_file":
return f"read: {args.get('path', '?')}"
if tool_name == "write_file":
return f"write: {args.get('path', '?')}"
if tool_name == "patch":
mode = args.get("mode", "replace")
path = args.get("path", "?")
return f"patch ({mode}): {path}"
if tool_name == "search_files":
return f"search: {args.get('pattern', '?')}"
if tool_name == "web_search":
return f"web search: {args.get('query', '?')}"
if tool_name == "web_extract":
urls = args.get("urls", [])
if urls:
return f"extract: {urls[0]}" + (f" (+{len(urls)-1})" if len(urls) > 1 else "")
return "web extract"
if tool_name == "delegate_task":
goal = args.get("goal", "")
if goal and len(goal) > 60:
goal = goal[:57] + "..."
return f"delegate: {goal}" if goal else "delegate task"
if tool_name == "execute_code":
return "execute code"
if tool_name == "vision_analyze":
return f"analyze image: {args.get('question', '?')[:50]}"
return tool_name
def _build_patch_mode_content(patch_text: str) -> List[Any]:
"""Parse V4A patch mode input into ACP diff blocks when possible."""
if not patch_text:
return [acp.tool_content(acp.text_block(""))]
try:
from tools.patch_parser import OperationType, parse_v4a_patch
operations, error = parse_v4a_patch(patch_text)
if error or not operations:
return [acp.tool_content(acp.text_block(patch_text))]
content: List[Any] = []
for op in operations:
if op.operation == OperationType.UPDATE:
old_chunks: list[str] = []
new_chunks: list[str] = []
for hunk in op.hunks:
old_lines = [line.content for line in hunk.lines if line.prefix in (" ", "-")]
new_lines = [line.content for line in hunk.lines if line.prefix in (" ", "+")]
if old_lines or new_lines:
old_chunks.append("\n".join(old_lines))
new_chunks.append("\n".join(new_lines))
old_text = "\n...\n".join(chunk for chunk in old_chunks if chunk)
new_text = "\n...\n".join(chunk for chunk in new_chunks if chunk)
if old_text or new_text:
content.append(
acp.tool_diff_content(
path=op.file_path,
old_text=old_text or None,
new_text=new_text or "",
)
)
continue
if op.operation == OperationType.ADD:
added_lines = [line.content for hunk in op.hunks for line in hunk.lines if line.prefix == "+"]
content.append(
acp.tool_diff_content(
path=op.file_path,
new_text="\n".join(added_lines),
)
)
continue
if op.operation == OperationType.DELETE:
content.append(
acp.tool_diff_content(
path=op.file_path,
old_text=f"Delete file: {op.file_path}",
new_text="",
)
)
continue
if op.operation == OperationType.MOVE:
content.append(
acp.tool_content(acp.text_block(f"Move file: {op.file_path} -> {op.new_path}"))
)
return content or [acp.tool_content(acp.text_block(patch_text))]
except Exception:
return [acp.tool_content(acp.text_block(patch_text))]
def _strip_diff_prefix(path: str) -> str:
raw = str(path or "").strip()
if raw.startswith(("a/", "b/")):
return raw[2:]
return raw
def _parse_unified_diff_content(diff_text: str) -> List[Any]:
"""Convert unified diff text into ACP diff content blocks."""
if not diff_text:
return []
content: List[Any] = []
current_old_path: Optional[str] = None
current_new_path: Optional[str] = None
old_lines: list[str] = []
new_lines: list[str] = []
def _flush() -> None:
nonlocal current_old_path, current_new_path, old_lines, new_lines
if current_old_path is None and current_new_path is None:
return
path = current_new_path if current_new_path and current_new_path != "/dev/null" else current_old_path
if not path or path == "/dev/null":
current_old_path = None
current_new_path = None
old_lines = []
new_lines = []
return
content.append(
acp.tool_diff_content(
path=_strip_diff_prefix(path),
old_text="\n".join(old_lines) if old_lines else None,
new_text="\n".join(new_lines),
)
)
current_old_path = None
current_new_path = None
old_lines = []
new_lines = []
for line in diff_text.splitlines():
if line.startswith("--- "):
_flush()
current_old_path = line[4:].strip()
continue
if line.startswith("+++ "):
current_new_path = line[4:].strip()
continue
if line.startswith("@@"):
continue
if current_old_path is None and current_new_path is None:
continue
if line.startswith("+"):
new_lines.append(line[1:])
elif line.startswith("-"):
old_lines.append(line[1:])
elif line.startswith(" "):
shared = line[1:]
old_lines.append(shared)
new_lines.append(shared)
_flush()
return content
def _build_tool_complete_content(
tool_name: str,
result: Optional[str],
*,
function_args: Optional[Dict[str, Any]] = None,
snapshot: Any = None,
) -> List[Any]:
"""Build structured ACP completion content, falling back to plain text."""
display_result = result or ""
if len(display_result) > 5000:
display_result = display_result[:4900] + f"\n... ({len(result)} chars total, truncated)"
if tool_name in {"write_file", "patch", "skill_manage"}:
try:
from agent.display import extract_edit_diff
diff_text = extract_edit_diff(
tool_name,
result,
function_args=function_args,
snapshot=snapshot,
)
if isinstance(diff_text, str) and diff_text.strip():
diff_content = _parse_unified_diff_content(diff_text)
if diff_content:
return diff_content
except Exception:
pass
return [acp.tool_content(acp.text_block(display_result))]
# ---------------------------------------------------------------------------
# Build ACP content objects for tool-call events
# ---------------------------------------------------------------------------
def build_tool_start(
tool_call_id: str,
tool_name: str,
arguments: Dict[str, Any],
) -> ToolCallStart:
"""Create a ToolCallStart event for the given hermes tool invocation."""
kind = get_tool_kind(tool_name)
title = build_tool_title(tool_name, arguments)
locations = extract_locations(arguments)
if tool_name == "patch":
mode = arguments.get("mode", "replace")
if mode == "replace":
path = arguments.get("path", "")
old = arguments.get("old_string", "")
new = arguments.get("new_string", "")
content = [acp.tool_diff_content(path=path, new_text=new, old_text=old)]
else:
patch_text = arguments.get("patch", "")
content = _build_patch_mode_content(patch_text)
return acp.start_tool_call(
tool_call_id, title, kind=kind, content=content, locations=locations,
raw_input=arguments,
)
if tool_name == "write_file":
path = arguments.get("path", "")
file_content = arguments.get("content", "")
content = [acp.tool_diff_content(path=path, new_text=file_content)]
return acp.start_tool_call(
tool_call_id, title, kind=kind, content=content, locations=locations,
raw_input=arguments,
)
if tool_name == "terminal":
command = arguments.get("command", "")
content = [acp.tool_content(acp.text_block(f"$ {command}"))]
return acp.start_tool_call(
tool_call_id, title, kind=kind, content=content, locations=locations,
raw_input=arguments,
)
if tool_name == "read_file":
path = arguments.get("path", "")
content = [acp.tool_content(acp.text_block(f"Reading {path}"))]
return acp.start_tool_call(
tool_call_id, title, kind=kind, content=content, locations=locations,
raw_input=arguments,
)
if tool_name == "search_files":
pattern = arguments.get("pattern", "")
target = arguments.get("target", "content")
content = [acp.tool_content(acp.text_block(f"Searching for '{pattern}' ({target})"))]
return acp.start_tool_call(
tool_call_id, title, kind=kind, content=content, locations=locations,
raw_input=arguments,
)
# Generic fallback
import json
try:
args_text = json.dumps(arguments, indent=2, default=str)
except (TypeError, ValueError):
args_text = str(arguments)
content = [acp.tool_content(acp.text_block(args_text))]
return acp.start_tool_call(
tool_call_id, title, kind=kind, content=content, locations=locations,
raw_input=arguments,
)
def build_tool_complete(
tool_call_id: str,
tool_name: str,
result: Optional[str] = None,
function_args: Optional[Dict[str, Any]] = None,
snapshot: Any = None,
) -> ToolCallProgress:
"""Create a ToolCallUpdate (progress) event for a completed tool call."""
kind = get_tool_kind(tool_name)
content = _build_tool_complete_content(
tool_name,
result,
function_args=function_args,
snapshot=snapshot,
)
return acp.update_tool_call(
tool_call_id,
kind=kind,
status="completed",
content=content,
raw_output=result,
)
# ---------------------------------------------------------------------------
# Location extraction
# ---------------------------------------------------------------------------
def extract_locations(
arguments: Dict[str, Any],
) -> List[ToolCallLocation]:
"""Extract file-system locations from tool arguments."""
locations: List[ToolCallLocation] = []
path = arguments.get("path")
if path:
line = arguments.get("offset") or arguments.get("line")
locations.append(ToolCallLocation(path=path, line=line))
return locations