241 lines
8.4 KiB
Python
241 lines
8.4 KiB
Python
"""Cursor native user-hook integration."""
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from __future__ import annotations
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import base64
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import json
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import os
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import urllib.parse
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from typing import List, Optional
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from elydora._runtime_paths import resolve_agent_directory
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from elydora.utils import base64url_encode
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from ._transaction import FileChange
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from .base import AgentPlugin, InstallConfig, PluginStatus
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from .cursor_contract import (
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AGENT_KEY,
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AUDIT_SCRIPT,
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GUARD_SCRIPT,
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build_handler,
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remove_managed_hooks,
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render_document,
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runtime_contracts,
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runtime_root,
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same_path,
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)
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from .cursor_io import (
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read_document,
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rendered_change,
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physical_directory_exists,
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physical_file_exists,
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require_runtime_directory,
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runtime_change,
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runtime_files_exist,
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validate_config_directory,
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validate_runtime_identity,
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write_cursor_changes,
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)
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from .hook_template import generate_guard_script, generate_hook_script
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def _runtime_config(config: InstallConfig, agent_id: str) -> dict:
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value = {
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"org_id": config.get("org_id", ""),
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"agent_id": agent_id,
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"kid": config.get("kid", ""),
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"base_url": config.get("base_url", "https://api.elydora.com"),
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"agent_name": AGENT_KEY,
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}
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token = config.get("token", "")
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if token:
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value["token"] = token
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return value
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def _json_source(value: dict) -> str:
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return json.dumps(value, indent=2) + "\n"
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def _present(changes: List[Optional[FileChange]]) -> List[FileChange]:
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return [change for change in changes if change is not None]
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def _agent_paths(config: InstallConfig) -> tuple[str, str, str]:
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agent_id = config.get("agent_id", "")
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if not agent_id:
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raise ValueError("agent_id is required")
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agent_directory = resolve_agent_directory(runtime_root(), agent_id)
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guard_path = os.path.join(agent_directory, GUARD_SCRIPT)
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configured_guard = config.get("guard_script_path", "")
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if not same_path(configured_guard, guard_path):
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raise ValueError(
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"Elydora guard runtime must use the managed agent directory: "
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f"{guard_path}"
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)
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return agent_id, agent_directory, guard_path
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def _validate_install_config(config: InstallConfig) -> None:
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for field in ("org_id", "agent_id", "kid", "private_key"):
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value = config.get(field)
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if not isinstance(value, str) or not value:
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raise ValueError(f"{field} is required")
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if config.get("agent_name") != AGENT_KEY:
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raise ValueError(f"Cursor installation requires agent_name {AGENT_KEY}")
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private_key = config["private_key"]
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try:
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padded = private_key + "=" * ((4 - len(private_key) % 4) % 4)
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seed = base64.b64decode(
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padded.replace("-", "+").replace("_", "/"),
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validate=True,
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)
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except (ValueError, UnicodeEncodeError) as error:
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raise ValueError(
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"private_key must be a canonical 32-byte base64url value"
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) from error
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if len(seed) != 32 or base64url_encode(seed) != private_key:
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raise ValueError("private_key must be a canonical 32-byte base64url value")
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base_url = config.get("base_url", "https://api.elydora.com")
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if not isinstance(base_url, str):
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raise ValueError("base_url must be a string")
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parsed = urllib.parse.urlsplit(base_url)
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if parsed.scheme not in ("http", "https") or not parsed.netloc:
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raise ValueError("base_url must be an absolute HTTP or HTTPS URL")
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token = config.get("token", "")
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if not isinstance(token, str):
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raise ValueError("token must be a string")
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class CursorPlugin(AgentPlugin):
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"""Install Elydora into Cursor's native global user hooks."""
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manages_guard_runtime = True
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def preflight_install(self, config: InstallConfig) -> None:
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_validate_install_config(config)
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read_document()
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validate_config_directory()
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agent_id, agent_directory, guard_path = _agent_paths(config)
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if not physical_directory_exists(runtime_root()):
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return
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if not physical_directory_exists(agent_directory):
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return
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identity_exists = validate_runtime_identity(
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os.path.join(agent_directory, "config.json"),
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agent_id,
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)
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runtime_exists = False
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for file_path, label in (
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(guard_path, "Elydora guard runtime"),
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(os.path.join(agent_directory, AUDIT_SCRIPT), "Elydora audit runtime"),
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(os.path.join(agent_directory, "private.key"), "Elydora private key"),
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(os.path.join(agent_directory, "chain-state.json"), "Elydora chain state"),
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(os.path.join(agent_directory, "status-cache.json"), "Elydora status cache"),
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(os.path.join(agent_directory, "error.log"), "Elydora error log"),
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):
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runtime_exists = physical_file_exists(file_path, label) or runtime_exists
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if runtime_exists and not identity_exists:
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raise ValueError(
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"Elydora runtime identity cannot be verified without config.json: "
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f"{agent_directory}"
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)
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def install(self, config: InstallConfig) -> None:
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self.preflight_install(config)
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document = read_document()
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agent_id, agent_directory, guard_path = _agent_paths(config)
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require_runtime_directory(agent_directory)
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audit_path = os.path.join(agent_directory, AUDIT_SCRIPT)
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runtime_config_path = os.path.join(agent_directory, "config.json")
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validate_runtime_identity(runtime_config_path, agent_id)
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hooks = remove_managed_hooks(document.hooks)
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hooks["preToolUse"] = [
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*hooks.get("preToolUse", []),
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build_handler(guard_path),
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]
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hooks["postToolUse"] = [
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*hooks.get("postToolUse", []),
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build_handler(audit_path),
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]
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hooks["postToolUseFailure"] = [
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*hooks.get("postToolUseFailure", []),
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build_handler(audit_path),
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]
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hook_script = generate_hook_script(
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org_id=config.get("org_id", ""),
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agent_id=agent_id,
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kid=config.get("kid", ""),
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base_url=config.get("base_url", "https://api.elydora.com"),
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success_output="{}\n",
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fail_closed=True,
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native_payload=True,
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agent_name=AGENT_KEY,
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)
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guard_script = generate_guard_script(
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AGENT_KEY,
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agent_id,
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success_output='{"permission":"allow"}\n',
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fail_closed=True,
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)
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changes = _present([
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runtime_change(
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guard_path,
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"Elydora guard runtime",
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guard_script,
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0o700,
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),
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runtime_change(
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runtime_config_path,
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"Elydora runtime config",
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_json_source(_runtime_config(config, agent_id)),
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0o600,
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),
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runtime_change(
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os.path.join(agent_directory, "private.key"),
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"Elydora private key",
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config.get("private_key", ""),
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0o600,
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),
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runtime_change(
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audit_path,
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"Elydora audit runtime",
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hook_script,
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0o700,
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),
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rendered_change(render_document(document, hooks)),
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])
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write_cursor_changes(changes, "Install Cursor hooks")
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print(f" Cursor hooks: {document.file_path}")
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def uninstall(self, agent_id: str = "") -> None:
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document = read_document()
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hooks = remove_managed_hooks(document.hooks, agent_id)
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change = rendered_change(render_document(document, hooks))
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write_cursor_changes(
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[] if change is None else [change],
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"Uninstall Cursor hooks",
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)
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def status(self) -> PluginStatus:
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document = read_document()
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contracts = runtime_contracts(document.hooks)
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if not contracts:
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return PluginStatus(
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installed=False,
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agent=AGENT_KEY,
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details="Not installed",
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)
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installed = runtime_files_exist(contracts)
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details = (
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f"Config: {document.file_path}"
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if installed
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else f"Configured at {document.file_path}; runtime files missing"
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)
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return PluginStatus(
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installed=installed,
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agent=AGENT_KEY,
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details=details,
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)
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