"""
tool_execution.py

Tool dispatcher and result formatter for the agent loop.
Routes tool blocks to MCP servers or native implementations.

Extracted from agent_tools.py.
"""

import asyncio
import collections
import json
import logging
import os
import sys
import time
from typing import Any, Awaitable, Callable, Dict, Optional, Tuple

from src.tool_security import is_public_blocked_tool, owner_is_admin_or_single_user

MAX_OUTPUT_CHARS = 10_000
MAX_READ_CHARS = 20_000

# Bash + python tools used to share a single 60s timeout. That's
# enough for one-shot commands but starves real workloads (pip
# install, ffmpeg conversions, etc.) — and worse, the agent saw the
# 60s timeout and went silent because it had nothing to report.
# The new default is intentionally generous: long enough that real
# work isn't killed mid-flight, but bounded so a runaway process
# (infinite loop, hung connect, etc.) eventually frees the worker.
# The user can cancel sooner via the chat stop button — when the
# SSE stream is torn down, the asyncio task running the subprocess
# gets cancelled and the subprocess is killed by the finally block.
DEFAULT_BASH_TIMEOUT = 60 * 60     # 1 hour
DEFAULT_PYTHON_TIMEOUT = 60 * 60

# How often to push a progress event while a long-running subprocess
# is still in flight. The frontend cares about "alive" more than
# "every-byte" — 2s is the sweet spot.
PROGRESS_INTERVAL_S = 2.0
# Tail buffer size — we keep the most recent N lines of stdout +
# stderr so the progress event includes a "what's it doing right now"
# snippet without dragging the whole output along.
PROGRESS_TAIL_LINES = 12


def get_mcp_manager():
    from src import agent_tools
    return agent_tools.get_mcp_manager()


def _truncate(text: str, limit: int = MAX_OUTPUT_CHARS) -> str:
    if len(text) > limit:
        return text[:limit] + f"\n... (truncated, {len(text)} chars total)"
    return text

logger = logging.getLogger(__name__)


async def _run_subprocess_streaming(
    proc: asyncio.subprocess.Process,
    *,
    timeout: float,
    progress_cb: Optional[Callable[[Dict], Awaitable[None]]] = None,
) -> Tuple[str, str, Optional[int], bool]:
    """Run a subprocess to completion, streaming progress.

    Reads stdout + stderr line-by-line into ring buffers so a
    periodic progress callback can emit a "tail" of recent output
    without waiting for the full result. Returns
    (full_stdout, full_stderr, return_code, timed_out).

    `timed_out=True` means the process was killed because it ran
    past `timeout` seconds. Whatever output we'd buffered up to
    that point is still returned.
    """
    started = time.time()
    stdout_full: list[str] = []
    stderr_full: list[str] = []
    tail = collections.deque(maxlen=PROGRESS_TAIL_LINES)

    async def _reader(stream, full_buf, label: str):
        if stream is None:
            return
        while True:
            line = await stream.readline()
            if not line:
                break
            decoded = line.decode("utf-8", errors="replace").rstrip("\n")
            full_buf.append(decoded)
            if label == "err":
                tail.append(f"! {decoded}")
            else:
                tail.append(decoded)

    async def _progress_emitter():
        # Skip the first push — many commands finish well under
        # PROGRESS_INTERVAL_S and a 0-second "progress" event would
        # just add UI churn.
        await asyncio.sleep(PROGRESS_INTERVAL_S)
        while True:
            if progress_cb:
                try:
                    await progress_cb({
                        "elapsed_s": round(time.time() - started, 1),
                        "tail": "\n".join(list(tail)),
                    })
                except Exception:
                    # Progress is best-effort — never let a UI hiccup
                    # break the underlying subprocess.
                    pass
            await asyncio.sleep(PROGRESS_INTERVAL_S)

    rd_out = asyncio.create_task(_reader(proc.stdout, stdout_full, "out"))
    rd_err = asyncio.create_task(_reader(proc.stderr, stderr_full, "err"))
    prog_task = asyncio.create_task(_progress_emitter()) if progress_cb else None

    timed_out = False
    try:
        await asyncio.wait_for(proc.wait(), timeout=timeout)
    except asyncio.TimeoutError:
        timed_out = True
        try:
            proc.kill()
        except Exception:
            pass
        try:
            await asyncio.wait_for(proc.wait(), timeout=2)
        except Exception:
            pass
    except asyncio.CancelledError:
        # User hit stop / SSE stream torn down. Kill the child so it
        # doesn't keep running orphaned. Re-raise so the agent loop's
        # cancellation propagates as the user expects.
        try:
            proc.kill()
        except Exception:
            pass
        try:
            await asyncio.wait_for(proc.wait(), timeout=2)
        except Exception:
            pass
        # Best-effort: stop the readers + emitter before re-raising.
        for t in (rd_out, rd_err):
            t.cancel()
        if prog_task is not None:
            prog_task.cancel()
        raise
    finally:
        if prog_task is not None and not prog_task.done():
            prog_task.cancel()
            try:
                await prog_task
            except (asyncio.CancelledError, Exception):
                pass
        # Wait for readers to finish draining the pipes.
        for t in (rd_out, rd_err):
            try:
                await asyncio.wait_for(t, timeout=1)
            except Exception:
                pass

    return (
        "\n".join(stdout_full),
        "\n".join(stderr_full),
        proc.returncode,
        timed_out,
    )

_ADMIN_TOOLS = {
    "app_api",
    "manage_endpoints",
    "manage_mcp",
    "manage_webhooks",
    "manage_tokens",
    "manage_settings",
    "download_model",
    "serve_model",
    "serve_preset",
    "stop_served_model",
    "cancel_download",
}


def _owner_is_admin(owner: Optional[str]) -> bool:
    """Mirror route-level admin behavior for agent tool execution."""
    return owner_is_admin_or_single_user(owner)

# ---------------------------------------------------------------------------
# MCP-backed tool helpers
# ---------------------------------------------------------------------------

# Map legacy tool names -> (MCP server_id, MCP tool_name)
_MCP_TOOL_MAP = {
    "bash":           ("bash",       "bash"),
    "python":         ("python",     "python"),
    "read_file":      ("filesystem", "read_file"),
    "write_file":     ("filesystem", "write_file"),
    "web_search":     ("web_search", "web_search"),
    "web_fetch":      ("web_fetch",  "web_fetch"),
    "generate_image": ("image_gen",  "generate_image"),
}


def _parse_generate_image(content: str) -> Dict:
    lines = content.strip().split("\n")
    args = {"prompt": lines[0].strip() if lines else ""}
    for i, key in enumerate(["model", "size", "quality"], 1):
        if len(lines) > i and lines[i].strip():
            args[key] = lines[i].strip()
    return args


def _parse_manage_memory(content: str) -> Dict:
    lines = content.strip().split("\n")
    action = lines[0].strip().lower() if lines else ""
    args = {"action": action}
    if action == "add":
        args["text"] = lines[1].strip() if len(lines) > 1 else ""
        if len(lines) > 2 and lines[2].strip():
            args["category"] = lines[2].strip().lower()
    elif action == "edit":
        args["memory_id"] = lines[1].strip() if len(lines) > 1 else ""
        args["text"] = lines[2].strip() if len(lines) > 2 else ""
    elif action == "delete":
        args["memory_id"] = lines[1].strip() if len(lines) > 1 else ""
    elif action == "search":
        args["text"] = lines[1].strip() if len(lines) > 1 else ""
    elif action == "list":
        if len(lines) > 1 and lines[1].strip():
            args["category"] = lines[1].strip().lower()
    return args


def _parse_write_file(content: str) -> Dict:
    lines = content.split("\n", 1)
    return {"path": lines[0].strip(), "content": lines[1] if len(lines) > 1 else ""}


_MCP_ARG_PARSERS: Dict[str, callable] = {
    "bash":           lambda c: {"command": c},
    "python":         lambda c: {"code": c},
    "web_search":     lambda c: {"query": c.split("\n")[0].strip()},
    "web_fetch":      lambda c: {"url": c.split("\n")[0].strip()},
    "read_file":      lambda c: {"path": c.split("\n")[0].strip()},
    "write_file":     _parse_write_file,
    "generate_image": _parse_generate_image,
    "manage_memory":  _parse_manage_memory,
}


def _build_mcp_args(tool: str, content: str) -> Dict:
    """Convert fenced-block text content to structured MCP arguments."""
    parser = _MCP_ARG_PARSERS.get(tool)
    return parser(content) if parser else {}


async def _call_mcp_tool(
    tool: str,
    content: str,
    progress_cb: Optional[Callable[[Dict], Awaitable[None]]] = None,
) -> Dict:
    """Route a legacy tool call through the MCP manager, with direct fallbacks."""
    mcp = get_mcp_manager()
    if not mcp:
        return await _direct_fallback(tool, content, progress_cb=progress_cb) or {"error": f"MCP manager not available for tool '{tool}'", "exit_code": 1}

    server_id, tool_name = _MCP_TOOL_MAP[tool]
    qualified = f"mcp__{server_id}__{tool_name}"
    args = _build_mcp_args(tool, content)
    result = await mcp.call_tool(qualified, args)

    # If MCP server not connected, try direct fallback
    if isinstance(result, dict) and result.get("exit_code") == 1 and "not connected" in result.get("error", ""):
        fallback = await _direct_fallback(tool, content, progress_cb=progress_cb)
        if fallback:
            return fallback

    return result


_BG_MARKERS = {"#!bg", "#bg", "# bg", "#background", "# background", "@background", "# @background"}


def _split_bg_marker(content: str):
    """If the bash content's first non-empty line is a background marker
    (e.g. `#!bg`), return (True, command_without_marker); else (False, content)."""
    lines = content.split("\n")
    i = 0
    while i < len(lines) and not lines[i].strip():
        i += 1
    if i < len(lines) and lines[i].strip().lower() in _BG_MARKERS:
        del lines[i]
        return True, "\n".join(lines).strip()
    return False, content


async def _direct_fallback(
    tool: str,
    content: str,
    progress_cb: Optional[Callable[[Dict], Awaitable[None]]] = None,
) -> Optional[Dict]:
    """In-process execution path for the eight tools that used to live as
    stdio MCP servers under mcp_servers/. Those servers were deleted in
    favor of native execution; this function is now the canonical path,
    not a fallback. The name is kept for backwards compat with callers.

    `progress_cb` is called periodically while bash/python subprocesses
    are still running, with `{elapsed_s, tail}` payloads. Other tools
    ignore it.
    """
    import json as _json

    # Inherit env + force a sane terminal so subprocesses that touch
    # terminfo (anything calling `clear`, `tput`, `os.system("clear")`,
    # or scripts that probe $TERM) don't spam "TERM environment variable
    # not set" errors. The agent's bash/python tool calls run with PIPE
    # stdin/stdout (no real TTY), so curses/termios still won't work —
    # but at least non-interactive code with incidental TERM lookups
    # stops failing. COLUMNS/LINES give terminal-width-aware tools (less,
    # rich, etc.) reasonable defaults instead of 0×0.
    _subproc_env = {
        **os.environ,
        "TERM": "xterm-256color",
        "COLUMNS": "120",
        "LINES": "40",
    }

    try:
        if tool == "bash":
            proc = await asyncio.create_subprocess_shell(
                content,
                stdout=asyncio.subprocess.PIPE,
                stderr=asyncio.subprocess.PIPE,
                env=_subproc_env,
            )
            stdout, stderr, rc, timed_out = await _run_subprocess_streaming(
                proc,
                timeout=DEFAULT_BASH_TIMEOUT,
                progress_cb=progress_cb,
            )
            if timed_out:
                return {"error": f"bash: timed out after {DEFAULT_BASH_TIMEOUT}s — process killed", "exit_code": 124, "stdout": _truncate(stdout, MAX_OUTPUT_CHARS), "stderr": _truncate(stderr, MAX_OUTPUT_CHARS)}
            output = stdout.rstrip()
            err = stderr.rstrip()
            if err:
                output = (output + "\nSTDERR: " + err).strip() if output else "STDERR: " + err
            output = _truncate(output, MAX_OUTPUT_CHARS)
            return {"output": output or "(no output)", "exit_code": rc or 0}

        if tool == "python":
            # Run user code in a subprocess so an infinite loop or crash
            # can't take the whole server down. -I = isolated mode (skip
            # user site, no PYTHONPATH inheritance) for hygiene.
            proc = await asyncio.create_subprocess_exec(
                # Use the running interpreter — there is no `python3.exe` on
                # Windows, which made the agent's `python` tool fail there.
                (sys.executable or "python"), "-I", "-c", content,
                stdout=asyncio.subprocess.PIPE,
                stderr=asyncio.subprocess.PIPE,
                env=_subproc_env,
            )
            stdout, stderr, rc, timed_out = await _run_subprocess_streaming(
                proc,
                timeout=DEFAULT_PYTHON_TIMEOUT,
                progress_cb=progress_cb,
            )
            if timed_out:
                return {"error": f"python: timed out after {DEFAULT_PYTHON_TIMEOUT}s — process killed", "exit_code": 124, "stdout": _truncate(stdout, MAX_OUTPUT_CHARS), "stderr": _truncate(stderr, MAX_OUTPUT_CHARS)}
            output = stdout.rstrip()
            err = stderr.rstrip()
            if err:
                output = (output + "\nSTDERR: " + err).strip() if output else "STDERR: " + err
            output = _truncate(output, MAX_OUTPUT_CHARS)
            return {"output": output or "(no output)", "exit_code": rc or 0}

        if tool == "read_file":
            path = os.path.expanduser(content.split("\n", 1)[0].strip())
            if not path:
                return {"error": "read_file: path required", "exit_code": 1}
            try:
                # Run blocking read in a thread to keep the loop responsive
                def _read():
                    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 OSError as e:
                return {"error": f"read_file: {path}: {e}", "exit_code": 1}
            truncated = len(data) > MAX_READ_CHARS
            if truncated:
                data = data[:MAX_READ_CHARS] + f"\n... [truncated at {MAX_READ_CHARS} chars]"
            return {"output": data, "exit_code": 0}

        if tool == "write_file":
            lines = content.split("\n", 1)
            path = os.path.expanduser(lines[0].strip())
            body = lines[1] if len(lines) > 1 else ""
            if not path:
                return {"error": "write_file: path required", "exit_code": 1}
            try:
                def _write():
                    import os
                    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 len(body)
                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}
            return {"output": f"Wrote {size} bytes to {path}", "exit_code": 0}

        if tool == "web_search":
            from src.search import comprehensive_web_search
            raw = content.strip()
            query = raw
            time_filter = None
            max_pages = 5
            # Allow JSON-shaped args: {"query": "...", "time_filter": "day", "max_pages": 7}
            if raw.startswith("{"):
                try:
                    parsed = _json.loads(raw)
                    if isinstance(parsed, dict) and "query" in parsed:
                        query = str(parsed.get("query", "")).strip()
                        tf = parsed.get("time_filter") or parsed.get("freshness")
                        if isinstance(tf, str) and tf.lower() in ("day", "week", "month", "year"):
                            time_filter = tf.lower()
                        mp = parsed.get("max_pages")
                        if isinstance(mp, int) and 1 <= mp <= 10:
                            max_pages = mp
                except _json.JSONDecodeError:
                    pass
            if not query:
                query = raw.split("\n")[0].strip()
            # Auto-detect freshness from query phrasing when not explicit
            if time_filter is None:
                q_lc = query.lower()
                if any(kw in q_lc for kw in ("today", "latest", "breaking", "this morning", "right now", "currently")):
                    time_filter = "day"
                elif any(kw in q_lc for kw in ("this week", "past week", "recent news", "last few days")):
                    time_filter = "week"
                elif any(kw in q_lc for kw in ("this month", "past month")):
                    time_filter = "month"
                elif " news" in q_lc or q_lc.startswith("news ") or q_lc.endswith(" news"):
                    time_filter = "week"
            loop = asyncio.get_running_loop()
            text, sources = await asyncio.wait_for(
                loop.run_in_executor(
                    None,
                    lambda: comprehensive_web_search(
                        query,
                        max_pages=max_pages,
                        time_filter=time_filter,
                        return_sources=True,
                    ),
                ),
                timeout=30,
            )
            output = text[:MAX_OUTPUT_CHARS] if len(text) > MAX_OUTPUT_CHARS else text
            if sources:
                output += "\n\n<!-- SOURCES:" + _json.dumps(sources) + " -->"
            return {"output": output, "exit_code": 0}

        if tool == "web_fetch":
            # Lightweight single-URL fetch. Wraps the SSRF-safe fetcher used
            # by deep research, so private/loopback/metadata addresses are
            # already blocked there.
            from src.search.content import fetch_webpage_content
            raw = content.strip()
            url = ""
            # Accept either a JSON arg ({"url": "..."}) or a plain URL/domain.
            if raw.startswith("{"):
                try:
                    parsed = _json.loads(raw)
                    if isinstance(parsed, dict):
                        url = str(parsed.get("url") or "").strip()
                except _json.JSONDecodeError:
                    url = ""
            if not url:
                # Non-JSON (or JSON without a usable url): take the first line
                # only, so a URL followed by commentary still parses.
                url = raw.split("\n")[0].strip()
            # Reject anything that isn't a single bare URL/domain token.
            if not url or url.startswith("{") or any(c in url for c in (" ", "\t", "\n")):
                return {"error": "web_fetch: provide a single URL or domain, e.g. example.com", "exit_code": 1}
            low = url.lower()
            if "://" in low and not low.startswith(("http://", "https://")):
                return {"error": f"web_fetch: unsupported URL scheme (only http/https): {url[:80]}", "exit_code": 1}
            # Accept bare domains like "example.com" by defaulting to https.
            if not low.startswith(("http://", "https://")):
                url = "https://" + url
            loop = asyncio.get_running_loop()
            try:
                result = await asyncio.wait_for(
                    loop.run_in_executor(None, lambda: fetch_webpage_content(url, timeout=10)),
                    timeout=30,
                )
            except asyncio.TimeoutError:
                return {"error": f"web_fetch: timed out fetching {url}", "exit_code": 1}
            except Exception as e:
                # Direct URL fetches can hit bot protection / auth walls
                # (e.g. eBay 403). Treat that as a tool failure the model can
                # reason around, not an uncaught chat-stream 500.
                return {"error": f"web_fetch: {url}: {e}", "exit_code": 1}
            err = result.get("error")
            text = (result.get("content") or "").strip()
            title = result.get("title") or ""

            if not text:
                if err:
                    return {"error": f"web_fetch: {url}: {err}", "exit_code": 1}
                # No extractable text: non-HTML body, or a pure client-rendered
                # shell. The agent can fall back to the builtin_browser tool.
                return {"error": f"web_fetch: {url}: no readable text content (not HTML, or the page needs JS/login)", "exit_code": 1}

            header = (f"# {title}\n" if title else "") + f"Source: {url}\n\n"
            output = header + text
            if len(output) > MAX_OUTPUT_CHARS:
                output = output[:MAX_OUTPUT_CHARS] + "\n\n[...truncated]"
            return {"output": output, "exit_code": 0}

        # manage_memory / generate_image still live as MCP servers
        # (mcp_servers/{memory,image_gen}_server.py); the MCP path above
        # handles them.
    except Exception as e:
        return {"error": f"{tool}: {e}", "exit_code": 1}

    return None


# ---------------------------------------------------------------------------
# Dispatcher
# ---------------------------------------------------------------------------

async def execute_tool_block(
    block: Any,
    session_id: Optional[str] = None,
    disabled_tools: Optional[set] = None,
    owner: Optional[str] = None,
    progress_cb: Optional[Callable[[Dict], Awaitable[None]]] = None,
) -> Tuple[str, Dict]:
    """Execute a single tool block. Returns (description, result_dict).

    `progress_cb` is forwarded to long-running subprocess tools
    (bash, python) so the agent loop can emit `tool_progress` SSE
    events while the command is in flight. Ignored by other tools.
    """
    from src.tool_implementations import (
        do_create_document, do_update_document, do_edit_document,
        do_suggest_document, do_search_chats, do_manage_tasks,
        do_manage_skills, do_api_call, do_manage_endpoints,
        do_manage_mcp, do_manage_webhooks, do_manage_tokens,
        do_manage_documents, do_manage_settings, do_manage_notes,
        do_manage_calendar,
        do_download_model, do_serve_model, do_list_served_models, do_stop_served_model,
        do_list_downloads, do_cancel_download, do_search_hf_models, do_list_cached_models,
        do_list_serve_presets, do_serve_preset, do_adopt_served_model,
        do_list_cookbook_servers,
        do_edit_image, do_trigger_research, do_manage_research, do_resolve_contact,
        do_manage_contact,
        do_vault_search, do_vault_get, do_vault_unlock,
        do_app_api,
    )

    tool = block.tool_type
    content = block.content

    # Misformatted tool call detection: model put JSON inside ```python``` (or
    # similar) without naming the tool. Common with MiniMax-style outputs.
    # Return a helpful error so the model retries with the correct format.
    if tool in ("python", "json", "xml") and content.strip().startswith("{") and content.strip().endswith("}"):
        try:
            import json as _json
            parsed = _json.loads(content.strip())
            if isinstance(parsed, dict):
                desc = f"{tool}: misformatted tool call"
                result = {
                    "error": (
                        f"You wrote a JSON object inside a ```{tool}``` block, but that's not a tool call.\n"
                        "To call a tool, use the tool name as the fence tag, e.g.\n"
                        "```resolve_contact\n"
                        "{\"name\": \"...\"}\n"
                        "```\n"
                        "or\n"
                        "```send_email\n"
                        "{\"to\": \"...\", \"subject\": \"...\", \"body\": \"...\"}\n"
                        "```"
                    ),
                    "exit_code": 1,
                }
                return desc, result
        except (ValueError, TypeError):
            pass

    # Reject tools that the user has disabled for this request
    if disabled_tools and tool in disabled_tools:
        desc = f"{tool}: BLOCKED"
        result = {"error": f"Tool '{tool}' is disabled by user.", "exit_code": 1}
        logger.info(f"Tool blocked by user: {tool}")
        return desc, result

    if tool in _ADMIN_TOOLS and not _owner_is_admin(owner):
        desc = f"{tool}: BLOCKED"
        result = {"error": f"Tool '{tool}' requires an admin user.", "exit_code": 1}
        logger.warning("Admin tool blocked for non-admin owner=%r tool=%s", owner, tool)
        return desc, result

    if is_public_blocked_tool(tool) and not _owner_is_admin(owner):
        desc = f"{tool}: BLOCKED"
        result = {
            "error": (
                f"Tool '{tool}' is restricted to admin users on this deployment. "
                "Ask an admin to perform this action or grant the needed permission."
            ),
            "exit_code": 1,
        }
        logger.warning("Public tool policy blocked owner=%r tool=%s", owner, tool)
        return desc, result

    # Background execution: a `bash` block whose first line is the `#!bg`
    # marker runs DETACHED — returns a job id immediately so the chat stream
    # isn't held open for a multi-minute install/ffmpeg/download. The always-on
    # monitor re-invokes the agent with the full output when the job finishes.
    if tool == "bash" and session_id:
        _is_bg, _bg_cmd = _split_bg_marker(content)
        if _is_bg and _bg_cmd:
            from src import bg_jobs
            rec = bg_jobs.launch(_bg_cmd, session_id=session_id)
            short = _bg_cmd.strip().split(chr(10))[0][:80]
            desc = f"bash (background): {short}"
            result = {
                "output": (
                    f"Started background job `{rec['id']}`. It is running detached — "
                    f"do NOT wait for it or poll it. You will be automatically re-invoked "
                    f"with its full output when it finishes. Continue with other work, or "
                    f"end your turn now and resume when the result arrives."
                ),
                "exit_code": 0,
                "bg_job_id": rec["id"],
            }
            logger.info(f"Tool executed: {desc} -> bg job {rec['id']}")
            return desc, result

    # Route MCP-extracted tools through the MCP manager. Forward
    # the progress callback so long-running subprocess tools
    # (bash, python) can stream `tool_progress` events to the UI.
    if tool in _MCP_TOOL_MAP:
        first_line = content.split(chr(10))[0][:80]
        desc = f"{tool}: {first_line}"
        result = await _call_mcp_tool(tool, content, progress_cb=progress_cb)
    elif tool == "create_document":
        title = content.split("\n")[0].strip()[:60]
        desc = f"create_document: {title}"
        result = await do_create_document(content, session_id=session_id, owner=owner)
    elif tool == "update_document":
        desc = f"update_document: {content.split(chr(10))[0][:60]}"
        result = await do_update_document(content, owner=owner)
    elif tool == "edit_document":
        result = await do_edit_document(content, owner=owner)
        desc = f"edit_document: {result.get('title', '')}"
    elif tool == "suggest_document":
        result = await do_suggest_document(content, owner=owner)
        desc = f"suggest_document: {result.get('count', 0)} suggestions"
    elif tool == "search_chats":
        query = content.split("\n")[0].strip()
        desc = f"search_chats: {query[:80]}"
        result = await do_search_chats(query, owner=owner)
    elif tool in ("chat_with_model", "create_session", "list_sessions",
                  "send_to_session", "pipeline",
                  "manage_session", "manage_memory", "list_models",
                  "ui_control", "ask_teacher"):
        from src.ai_interaction import dispatch_ai_tool
        desc, result = await dispatch_ai_tool(tool, content, session_id, owner=owner)
    elif tool == "manage_tasks":
        desc = "manage_tasks"
        result = await do_manage_tasks(content, owner=owner)
    elif tool == "manage_skills":
        desc = "manage_skills"
        result = await do_manage_skills(content, owner=owner)
    elif tool == "api_call":
        first_line = content.split("\n")[0].strip()[:60]
        desc = f"api_call: {first_line}"
        result = await do_api_call(content)
    elif tool == "manage_endpoints":
        desc = "manage_endpoints"
        result = await do_manage_endpoints(content, owner=owner)
    elif tool == "manage_mcp":
        desc = "manage_mcp"
        result = await do_manage_mcp(content, owner=owner)
    elif tool == "manage_webhooks":
        desc = "manage_webhooks"
        result = await do_manage_webhooks(content, owner=owner)
    elif tool == "manage_tokens":
        desc = "manage_tokens"
        result = await do_manage_tokens(content, owner=owner)
    elif tool == "manage_documents":
        desc = "manage_documents"
        result = await do_manage_documents(content, owner=owner)
    elif tool == "manage_settings":
        desc = "manage_settings"
        result = await do_manage_settings(content, owner=owner)
    elif tool == "manage_notes":
        desc = "manage_notes"
        result = await do_manage_notes(content, owner=owner)
    elif tool == "manage_calendar":
        desc = "manage_calendar"
        result = await do_manage_calendar(content, owner=owner)
    elif tool == "download_model":
        desc = "download_model"
        result = await do_download_model(content, owner=owner)
    elif tool == "serve_model":
        desc = "serve_model"
        result = await do_serve_model(content, owner=owner)
    elif tool == "list_served_models":
        desc = "list_served_models"
        result = await do_list_served_models(content, owner=owner)
    elif tool == "stop_served_model":
        desc = "stop_served_model"
        result = await do_stop_served_model(content, owner=owner)
    elif tool == "list_downloads":
        desc = "list_downloads"
        result = await do_list_downloads(content, owner=owner)
    elif tool == "cancel_download":
        desc = "cancel_download"
        result = await do_cancel_download(content, owner=owner)
    elif tool == "search_hf_models":
        desc = "search_hf_models"
        result = await do_search_hf_models(content, owner=owner)
    elif tool == "list_cached_models":
        desc = "list_cached_models"
        result = await do_list_cached_models(content, owner=owner)
    elif tool == "app_api":
        desc = "app_api"
        result = await do_app_api(content, owner=owner)
    elif tool == "list_serve_presets":
        desc = "list_serve_presets"
        result = await do_list_serve_presets(content, owner=owner)
    elif tool == "serve_preset":
        desc = "serve_preset"
        result = await do_serve_preset(content, owner=owner)
    elif tool == "adopt_served_model":
        desc = "adopt_served_model"
        result = await do_adopt_served_model(content, owner=owner)
    elif tool == "list_cookbook_servers":
        desc = "list_cookbook_servers"
        result = await do_list_cookbook_servers(content, owner=owner)
    elif tool == "edit_image":
        desc = "edit_image"
        result = await do_edit_image(content, owner=owner)
    elif tool == "trigger_research":
        desc = "trigger_research"
        result = await do_trigger_research(content, owner=owner)
    elif tool == "manage_research":
        desc = "manage_research"
        result = await do_manage_research(content, owner=owner)
    elif tool == "resolve_contact":
        desc = "resolve_contact"
        result = await do_resolve_contact(content, owner=owner)
    elif tool == "manage_contact":
        desc = "manage_contact"
        result = await do_manage_contact(content, owner=owner)
    elif tool == "vault_search":
        desc = "vault_search"
        result = await do_vault_search(content, owner=owner)
    elif tool == "vault_get":
        desc = "vault_get"
        result = await do_vault_get(content, owner=owner)
    elif tool == "vault_unlock":
        desc = "vault_unlock"
        result = await do_vault_unlock(content, owner=owner)
    elif tool.startswith("mcp__"):
        # MCP tool dispatch
        mcp = get_mcp_manager()
        if mcp:
            try:
                args = json.loads(content) if content.strip().startswith("{") else {}
            except (json.JSONDecodeError, TypeError):
                args = {}
            desc = f"mcp: {tool}"
            result = await mcp.call_tool(tool, args)
        else:
            desc = f"mcp: {tool}"
            result = {"error": "MCP manager not available", "exit_code": 1}
    else:
        desc = f"unknown: {tool}"
        result = {"error": f"Unknown tool type: {tool}", "exit_code": 1}

    logger.info(f"Tool executed: {desc} -> exit_code={result.get('exit_code', 'n/a')}")
    return desc, result


# ---------------------------------------------------------------------------
# Result formatting
# ---------------------------------------------------------------------------

# Keys handled by the dedicated branches below — never echo them as raw JSON.
_FORMATTER_HANDLED_KEYS = {
    "stdout", "stderr", "exit_code", "content", "size",
    "response", "results", "session_id", "name", "model", "session_name",
    "success", "path", "action", "title", "doc_id", "version", "applied",
    "error", "output",
}


def format_tool_result(description: str, result: Dict) -> str:
    """Format a tool result into text for feeding back to the LLM."""
    parts = [f"### {description}"]

    if "stdout" in result:
        if result["stdout"]:
            parts.append(f"**stdout:**\n```\n{result['stdout']}\n```")
        if result["stderr"]:
            parts.append(f"**stderr:**\n```\n{result['stderr']}\n```")
        parts.append(f"**exit_code:** {result.get('exit_code', 'unknown')}")
    elif "output" in result:
        # bash / python canonical result shape: {"output": ..., "exit_code": ...}
        parts.append(f"```\n{result['output']}\n```")
        if result.get("exit_code") not in (0, None):
            parts.append(f"**exit_code:** {result['exit_code']}")
    elif "content" in result:
        parts.append(f"**content ({result.get('size', '?')} chars):**\n```\n{result['content']}\n```")
    elif "response" in result:
        model = result.get("model", result.get("session_name", ""))
        if model:
            parts.append(f"**{model} responded:**\n{result['response']}")
        else:
            parts.append(result["response"])
    elif "results" in result:
        parts.append(result["results"])
    elif "session_id" in result and "name" in result:
        parts.append(f"Session created: **{result['name']}** (id: `{result['session_id']}`, model: {result.get('model', 'unknown')})")
    elif "success" in result:
        if result["success"]:
            parts.append(f"File written: {result['path']} ({result['size']} bytes)")
        else:
            parts.append(f"Error: {result.get('error', 'unknown')}")
    elif "action" in result:
        action = result["action"]
        if action == "create":
            parts.append(f"Document created: \"{result.get('title', '')}\" (id: {result['doc_id']}, v{result['version']})")
        elif action == "update":
            parts.append(f"Document updated: \"{result.get('title', '')}\" (v{result['version']})")
        elif action == "edit":
            parts.append(f'Document edited: "{result.get("title", "")}" (v{result.get("version", "?")}, {result.get("applied", 0)} edit(s) applied)')
    elif "error" in result:
        parts.append(f"**Error:** {result['error']}")

    # Surface any additional structured payload (events, tasks, notes, calendars,
    # documents, attachments, etc.) that the dedicated branches above don't show.
    # Without this, tools that return {"response": "...", "events": [...]} would
    # silently drop the events list and the model would only see the summary line.
    extra = {k: v for k, v in result.items() if k not in _FORMATTER_HANDLED_KEYS}
    if extra:
        try:
            extra_json = json.dumps(extra, indent=2, default=str, ensure_ascii=False)
            # Cap to avoid blowing the context window on huge payloads.
            if len(extra_json) > 8000:
                extra_json = extra_json[:8000] + f"\n... (truncated, {len(extra_json)} chars total)"
            parts.append(f"**data:**\n```json\n{extra_json}\n```")
        except (TypeError, ValueError):
            pass

    return "\n".join(parts)