feat: sync Python Cline hook integration

AGENTS.md

@@ -27,7 +27,7 @@ This repository publishes the open-source server, console, integration catalog,
 - Write Grok Build integrations to a native user hook file under non-empty `GROK_HOME` or `~/.grok`; keep Claude Code and Cursor compatibility sources read-only.
 - Write Auggie hooks only to `~/.augment/settings.json`; keep system and workspace settings read-only. Generate `.cmd` wrappers on Windows and `.sh` wrappers on Unix because Auggie dispatches supported script paths, and express hook timeouts in milliseconds.
 - Validate Auggie matcher syntax during installation with Node.js `new RegExp`; keep status and uninstall independent from the JavaScript validator so recovery remains available offline.
-- Write Cline file hooks to `$CLINE_DIR/hooks` with `~/.cline/hooks` as the default; keep Documents and workspace hook roots read-only. Use supported event filenames, preserve official hook input byte-for-byte, and translate guard exit code `2` into JSON stdout with `cancel: true`. Treat hook errors, timeouts, and invalid control JSON as fail-open.
+- Write Cline file hooks to `$CLINE_DIR/hooks` with `~/.cline/hooks` as the default; keep Documents and workspace hook roots read-only. Use supported event filenames, preserve official hook input byte-for-byte, and resolve Python runtimes from absolute shebangs. Translate guard exit code `2` into JSON stdout with `cancel: true`. Treat hook errors, timeouts, and invalid control JSON as fail-open.
 
 ## Mirror Workflow
 

integrations/catalog.json

@@ -85,7 +85,7 @@
         "mechanism": "json_stdout_cancel",
         "failure_mode": "fail_open"
       },
-      "adapters": { "node": true, "python": false, "go": false },
+      "adapters": { "node": true, "python": true, "go": false },
       "delivery_state": "partial",
       "source_url": "https://github.com/cline/cline/blob/main/sdk/examples/hooks/README.md"
     },

sdks/python/README.md

@@ -75,6 +75,8 @@ elydora install \
 
 Codex performs a one-time trust review for user hooks. Run `/hooks` in Codex after installation and trust the Elydora `PreToolUse` and `PostToolUse` definitions.
 
+Cline installation writes `PreToolUse.mjs` and `PostToolUse.mjs` to `$CLINE_DIR/hooks` (default `~/.cline/hooks`). Elydora leaves the Documents and workspace hook roots unchanged. The wrappers preserve Cline's official payload and translate a frozen guard into JSON stdout cancellation control.
+
 Kimi installation writes the strict hook contract to each detected runtime: Kimi Code's `$KIMI_CODE_HOME/config.toml` (default `~/.kimi-code/config.toml`) and the migrating Python CLI's `~/.kimi/config.toml`. A fresh installation targets current Kimi Code, avoiding cross-runtime migration markers. Both runtimes load the hooks globally; run `/hooks` to inspect them.
 
 Grok Build installation writes native global hooks to `$GROK_HOME/hooks/elydora-audit.json` (default `~/.grok/hooks/elydora-audit.json`). Project hooks still follow Grok's `/hooks-trust` workflow; Elydora leaves project, Claude Code, and Cursor compatibility files unchanged.
@@ -99,6 +101,7 @@ Kiro CLI installation covers both runtime contracts. Kiro CLI v2 uses the genera
 | Augment Code CLI | `augment` |
 | Claude Code | `claudecode` |
 | OpenAI Codex | `codex` |
+| Cline | `cline` |
 | Kimi Code | `kimi` |
 | Grok Build | `grok` |
 | Copilot CLI | `copilot` |

sdks/python/elydora/cli.py

@@ -21,6 +21,7 @@ from .plugins.hook_template import generate_guard_script
 from .plugins.augment import AugmentPlugin
 from .plugins.claudecode import ClaudeCodePlugin
 from .plugins.codex import CodexPlugin
+from .plugins.cline import ClinePlugin
 from .plugins.copilot import CopilotPlugin
 from .plugins.cursor import CursorPlugin
 from .plugins.gemini import GeminiPlugin
@@ -36,6 +37,7 @@ PLUGIN_MAP: Dict[str, Type[AgentPlugin]] = {
     "augment": AugmentPlugin,
     "claudecode": ClaudeCodePlugin,
     "codex": CodexPlugin,
+    "cline": ClinePlugin,
     "copilot": CopilotPlugin,
     "cursor": CursorPlugin,
     "gemini": GeminiPlugin,

sdks/python/elydora/plugins/cline.py

@@ -0,0 +1,126 @@
+"""Cline native user-level file-hook integration."""
+
+from __future__ import annotations
+
+import os
+
+from ._file_io import write_json_atomic, write_text_atomic
+from .base import AgentPlugin, InstallConfig, PluginStatus
+from .cline_contract import (
+    AGENT_KEY,
+    AUDIT_SCRIPT,
+    HookFile,
+    build_metadata,
+    build_wrapper,
+    elydora_dir,
+    resolve_hook_files,
+    runtime_contract,
+)
+from .cline_io import (
+    PendingWrite,
+    read_hook_file,
+    remove_owned_hooks,
+    require_available_hook_file,
+    require_runtime,
+    runtime_files_exist,
+    write_hook_pair,
+)
+from .hook_template import generate_hook_script
+
+
+class ClinePlugin(AgentPlugin):
+    """Install Elydora into Cline's global file-hook directory."""
+
+    def install(self, config: InstallConfig) -> None:
+        agent_id = config.get("agent_id", "")
+        if not agent_id:
+            raise ValueError("agent_id is required")
+        paths = resolve_hook_files()
+        guard_state = read_hook_file(paths.guard_path)
+        audit_state = read_hook_file(paths.audit_path)
+        require_available_hook_file(guard_state)
+        require_available_hook_file(audit_state)
+
+        guard_path = config.get("guard_script_path", "")
+        require_runtime(guard_path, "Elydora guard runtime")
+        agent_directory = os.path.join(elydora_dir(), agent_id)
+        audit_path = os.path.join(agent_directory, AUDIT_SCRIPT)
+        guard_metadata = build_metadata("guard", agent_id, guard_path)
+        audit_metadata = build_metadata("audit", agent_id, audit_path)
+        guard_source = build_wrapper(guard_metadata)
+        audit_source = build_wrapper(audit_metadata)
+        runtime_contract(
+            HookFile(True, paths.guard_path, guard_source, guard_metadata),
+            HookFile(True, paths.audit_path, audit_source, audit_metadata),
+        )
+
+        runtime_config = {
+            "org_id": config.get("org_id", ""),
+            "agent_id": agent_id,
+            "kid": config.get("kid", ""),
+            "base_url": config.get("base_url", "https://api.elydora.com"),
+            "token": config.get("token", ""),
+            "agent_name": AGENT_KEY,
+        }
+        audit_script = generate_hook_script(
+            org_id=config.get("org_id", ""),
+            agent_id=agent_id,
+            private_key=config.get("private_key", ""),
+            kid=config.get("kid", ""),
+            base_url=config.get("base_url", "https://api.elydora.com"),
+        )
+        write_json_atomic(
+            os.path.join(agent_directory, "config.json"),
+            runtime_config,
+            0o600,
+            "Elydora runtime config",
+        )
+        write_text_atomic(
+            os.path.join(agent_directory, "private.key"),
+            config.get("private_key", ""),
+            0o600,
+            "Elydora private key",
+        )
+        write_text_atomic(
+            audit_path,
+            audit_script,
+            0o700,
+            "Elydora audit runtime",
+        )
+        write_hook_pair(
+            PendingWrite(guard_state, guard_source),
+            PendingWrite(audit_state, audit_source),
+        )
+        print("Cline: user-level PreToolUse and PostToolUse hooks installed.")
+
+    def uninstall(self, agent_id: str = "") -> None:
+        paths = resolve_hook_files()
+        guard_state = read_hook_file(paths.guard_path)
+        audit_state = read_hook_file(paths.audit_path)
+        remove_owned_hooks((guard_state, audit_state), agent_id)
+
+    def status(self) -> PluginStatus:
+        paths = resolve_hook_files()
+        guard_state = read_hook_file(paths.guard_path)
+        audit_state = read_hook_file(paths.audit_path)
+        contract = runtime_contract(guard_state, audit_state)
+        if contract is None:
+            return PluginStatus(
+                installed=False,
+                agent=AGENT_KEY,
+                details="Not installed",
+            )
+        installed = runtime_files_exist(contract)
+        details = (
+            f"Config: {paths.hooks_directory}"
+            if installed
+            else (
+                f"Configured at {paths.hooks_directory}; "
+                "runtime scripts missing"
+            )
+        )
+        return PluginStatus(
+            installed=installed,
+            agent=AGENT_KEY,
+            details=details,
+        )

sdks/python/elydora/plugins/cline_contract.py

@@ -0,0 +1,288 @@
+"""Cline file-hook contract and exact Elydora ownership metadata."""
+
+from __future__ import annotations
+
+import base64
+from dataclasses import dataclass
+import json
+import os
+from typing import Any, Dict, Optional
+
+
+AGENT_KEY = "cline"
+GUARD_FILE_NAME = "PreToolUse.mjs"
+AUDIT_FILE_NAME = "PostToolUse.mjs"
+GUARD_SCRIPT = "guard.py"
+AUDIT_SCRIPT = "hook.py"
+
+_METADATA_MARKER = "// @elydora-cline-hook "
+_METADATA_VERSION = 1
+
+JsonObject = Dict[str, Any]
+
+
+@dataclass(frozen=True)
+class HookMetadata:
+    version: int
+    kind: str
+    agent_id: str
+    runtime_path: str
+
+
+@dataclass(frozen=True)
+class HookFile:
+    exists: bool
+    file_path: str
+    source: Optional[str] = None
+    metadata: Optional[HookMetadata] = None
+
+
+@dataclass(frozen=True)
+class HookPaths:
+    hooks_directory: str
+    guard_path: str
+    audit_path: str
+
+
+@dataclass(frozen=True)
+class RuntimeContract:
+    agent_id: str
+    agent_directory: str
+    guard_path: str
+    audit_path: str
+
+
+def home_dir() -> str:
+    return os.path.expanduser("~")
+
+
+def elydora_dir() -> str:
+    return os.path.join(home_dir(), ".elydora")
+
+
+def same_agent_id(left: str, right: str) -> bool:
+    return os.path.normcase(left) == os.path.normcase(right)
+
+
+def _same_path(left: str, right: str) -> bool:
+    return os.path.normcase(os.path.abspath(left)) == os.path.normcase(
+        os.path.abspath(right)
+    )
+
+
+def resolve_hooks_directory() -> str:
+    configured = os.environ.get("CLINE_DIR", "").strip()
+    cline_directory = (
+        os.path.abspath(configured)
+        if configured
+        else os.path.join(home_dir(), ".cline")
+    )
+    return os.path.join(cline_directory, "hooks")
+
+
+def resolve_hook_files() -> HookPaths:
+    hooks_directory = resolve_hooks_directory()
+    return HookPaths(
+        hooks_directory=hooks_directory,
+        guard_path=os.path.join(hooks_directory, GUARD_FILE_NAME),
+        audit_path=os.path.join(hooks_directory, AUDIT_FILE_NAME),
+    )
+
+
+def build_metadata(kind: str, agent_id: str, runtime_path: str) -> HookMetadata:
+    if kind not in {"guard", "audit"}:
+        raise ValueError('Cline hook kind must be "guard" or "audit"')
+    if not agent_id:
+        raise ValueError("agent_id is required")
+    if not os.path.isabs(runtime_path):
+        raise ValueError(f"Cline {kind} runtime path must be absolute")
+    return HookMetadata(_METADATA_VERSION, kind, agent_id, runtime_path)
+
+
+def _metadata_object(metadata: HookMetadata) -> JsonObject:
+    return {
+        "version": metadata.version,
+        "kind": metadata.kind,
+        "agentId": metadata.agent_id,
+        "runtimePath": metadata.runtime_path,
+    }
+
+
+def _encode_metadata(metadata: HookMetadata) -> str:
+    raw = json.dumps(_metadata_object(metadata), separators=(",", ":"))
+    return base64.urlsafe_b64encode(raw.encode("utf-8")).rstrip(b"=").decode("ascii")
+
+
+def build_wrapper(metadata: HookMetadata) -> str:
+    template = """#!/usr/bin/env node
+__METADATA_MARKER____METADATA__
+import { spawn } from 'node:child_process';
+import { readFileSync, statSync } from 'node:fs';
+import { isAbsolute } from 'node:path';
+
+const hookKind = __HOOK_KIND__;
+const runtimePath = __RUNTIME_PATH__;
+
+function resolveRuntimeExecutable() {
+  const firstLine = readFileSync(runtimePath, 'utf-8').split(/\\r?\\n/, 1)[0] ?? '';
+  if (!firstLine.startsWith('#!')) throw new Error('runtime is missing an absolute shebang');
+  const executable = firstLine.slice(2).trim();
+  if (!isAbsolute(executable)) throw new Error('runtime shebang executable must be absolute');
+  try {
+    if (!statSync(executable).isFile()) throw new Error('path is not a file');
+  } catch (error) {
+    const message = error instanceof Error ? error.message : String(error);
+    throw new Error('runtime shebang executable is unavailable: ' + message, { cause: error });
+  }
+  return executable;
+}
+
+function runRuntime(input) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(resolveRuntimeExecutable(), [runtimePath], {
+      stdio: ['pipe', 'pipe', 'pipe'],
+      windowsHide: true,
+    });
+    const stdout = [];
+    const stderr = [];
+    let stdinError;
+    child.stdout.on('data', (chunk) => stdout.push(chunk));
+    child.stderr.on('data', (chunk) => stderr.push(chunk));
+    child.stdin.on('error', (error) => {
+      if (error?.code !== 'EPIPE') stdinError = error;
+    });
+    child.once('error', reject);
+    child.once('close', (code, signal) => {
+      if (stdinError) {
+        reject(stdinError);
+        return;
+      }
+      resolve({
+        code,
+        signal,
+        stdout: Buffer.concat(stdout).toString('utf-8'),
+        stderr: Buffer.concat(stderr).toString('utf-8'),
+      });
+    });
+    child.stdin.end(input);
+  });
+}
+
+async function main() {
+  const chunks = [];
+  for await (const chunk of process.stdin) chunks.push(chunk);
+  const result = await runRuntime(Buffer.concat(chunks));
+  if (result.stdout) process.stderr.write(result.stdout);
+  if (result.stderr) process.stderr.write(result.stderr);
+
+  if (hookKind === 'guard' && result.code === 2) {
+    const errorMessage = result.stderr.trim() || 'Agent is frozen by Elydora.';
+    process.stdout.write('HOOK_CONTROL\\t' + JSON.stringify({ cancel: true, errorMessage }) + '\\n');
+    return;
+  }
+  if (result.signal) throw new Error('runtime terminated by signal ' + result.signal);
+  if (result.code !== 0) throw new Error('runtime exited with code ' + result.code);
+}
+
+main().catch((error) => {
+  const message = error instanceof Error ? error.stack || error.message : String(error);
+  process.stderr.write('Elydora Cline ' + hookKind + ' wrapper failed: ' + message + '\\n');
+  process.exitCode = 1;
+});
+"""
+    return (
+        template.replace("__METADATA_MARKER__", _METADATA_MARKER)
+        .replace("__METADATA__", _encode_metadata(metadata))
+        .replace("__HOOK_KIND__", json.dumps(metadata.kind))
+        .replace("__RUNTIME_PATH__", json.dumps(metadata.runtime_path))
+    )
+
+
+def _decode_metadata(encoded: str) -> JsonObject:
+    padding = "=" * (-len(encoded) % 4)
+    try:
+        raw = base64.urlsafe_b64decode((encoded + padding).encode("ascii"))
+        value = json.loads(raw.decode("utf-8"))
+    except (ValueError, UnicodeError, json.JSONDecodeError) as error:
+        raise ValueError(f"invalid encoded metadata: {error}") from error
+    if not isinstance(value, dict):
+        raise ValueError("metadata must be an object")
+    return value
+
+
+def _validate_metadata(value: JsonObject) -> HookMetadata:
+    if set(value) != {"version", "kind", "agentId", "runtimePath"}:
+        raise ValueError("metadata contains an unexpected field set")
+    version = value["version"]
+    kind = value["kind"]
+    agent_id = value["agentId"]
+    runtime_path = value["runtimePath"]
+    if isinstance(version, bool) or version != _METADATA_VERSION:
+        raise ValueError("metadata version must be 1")
+    if kind not in {"guard", "audit"}:
+        raise ValueError('metadata kind must be "guard" or "audit"')
+    if not isinstance(agent_id, str) or not agent_id:
+        raise ValueError("metadata agentId must be a non-empty string")
+    if not isinstance(runtime_path, str) or not os.path.isabs(runtime_path):
+        raise ValueError("metadata runtimePath must be an absolute path")
+    return HookMetadata(version, kind, agent_id, runtime_path)
+
+
+def parse_metadata(file_path: str, source: str) -> Optional[HookMetadata]:
+    lines = source.splitlines()
+    marker_line = lines[1] if len(lines) > 1 else ""
+    if not marker_line.startswith(_METADATA_MARKER):
+        return None
+    try:
+        encoded = marker_line[len(_METADATA_MARKER):]
+        return _validate_metadata(_decode_metadata(encoded))
+    except ValueError as error:
+        raise ValueError(
+            f"Failed to parse Elydora Cline hook metadata at {file_path}: {error}"
+        ) from error
+
+
+def assert_wrapper_integrity(file: HookFile) -> None:
+    if file.metadata is None or file.source is None:
+        return
+    if file.source != build_wrapper(file.metadata):
+        raise ValueError(
+            f"Elydora Cline hook at {file.file_path} does not match the managed template"
+        )
+
+
+def _validate_agent_segment(agent_id: str) -> None:
+    if agent_id in {".", ".."} or os.path.basename(agent_id) != agent_id:
+        raise ValueError("Elydora Cline hook metadata contains an invalid agentId")
+
+
+def runtime_contract(
+    guard_file: HookFile,
+    audit_file: HookFile,
+) -> Optional[RuntimeContract]:
+    if guard_file.metadata is None or audit_file.metadata is None:
+        return None
+    assert_wrapper_integrity(guard_file)
+    assert_wrapper_integrity(audit_file)
+    guard = guard_file.metadata
+    audit = audit_file.metadata
+    if guard.kind != "guard" or audit.kind != "audit":
+        raise ValueError("Elydora Cline hook files contain mismatched event metadata")
+    if not same_agent_id(guard.agent_id, audit.agent_id):
+        raise ValueError("Elydora Cline hook files reference different agents")
+    _validate_agent_segment(guard.agent_id)
+    agent_directory = os.path.join(elydora_dir(), guard.agent_id)
+    expected_guard = os.path.join(agent_directory, GUARD_SCRIPT)
+    expected_audit = os.path.join(agent_directory, AUDIT_SCRIPT)
+    if not _same_path(guard.runtime_path, expected_guard) or not _same_path(
+        audit.runtime_path, expected_audit
+    ):
+        raise ValueError(
+            "Elydora Cline hook metadata references an unexpected runtime path"
+        )
+    return RuntimeContract(
+        agent_id=guard.agent_id,
+        agent_directory=agent_directory,
+        guard_path=expected_guard,
+        audit_path=expected_audit,
+    )

sdks/python/elydora/plugins/cline_io.py

@@ -0,0 +1,194 @@
+"""Fail-fast Cline hook I/O and runtime validation."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+import os
+import tempfile
+from typing import List, Sequence, Tuple
+
+from ._file_io import (
+    read_json,
+    regular_file_exists,
+    remove_file,
+    require_runtime,
+    write_text_atomic,
+)
+from .cline_contract import (
+    AGENT_KEY,
+    HookFile,
+    RuntimeContract,
+    parse_metadata,
+    same_agent_id,
+)
+
+
+@dataclass(frozen=True)
+class PendingWrite:
+    state: HookFile
+    source: str
+
+
+@dataclass(frozen=True)
+class StagedFile:
+    state: HookFile
+    temporary_path: str
+
+
+def read_hook_file(file_path: str) -> HookFile:
+    try:
+        with open(file_path, "r", encoding="utf-8") as file:
+            source = file.read()
+    except FileNotFoundError:
+        return HookFile(False, file_path)
+    except OSError as error:
+        raise OSError(f"Read Cline hook at {file_path}: {error}") from error
+    return HookFile(
+        exists=True,
+        file_path=file_path,
+        source=source,
+        metadata=parse_metadata(file_path, source),
+    )
+
+
+def require_available_hook_file(file: HookFile) -> None:
+    if file.exists and file.metadata is None:
+        raise ValueError(
+            f"Cline hook at {file.file_path} already exists and is owned "
+            "by another integration"
+        )
+
+
+def _remove_temporary(path: str) -> None:
+    try:
+        os.remove(path)
+    except FileNotFoundError:
+        return
+
+
+def _stage_file(write: PendingWrite) -> StagedFile:
+    directory = os.path.dirname(write.state.file_path)
+    try:
+        os.makedirs(directory, mode=0o700, exist_ok=True)
+    except OSError as error:
+        raise OSError(f"Create Cline hooks directory at {directory}: {error}") from error
+    descriptor = -1
+    temporary_path = ""
+    try:
+        descriptor, temporary_path = tempfile.mkstemp(
+            prefix=f".{os.path.basename(write.state.file_path)}.",
+            suffix=".tmp",
+            dir=directory,
+            text=True,
+        )
+        with os.fdopen(descriptor, "w", encoding="utf-8", newline="") as file:
+            descriptor = -1
+            file.write(write.source)
+            file.flush()
+            os.fsync(file.fileno())
+        os.chmod(temporary_path, 0o700)
+        return StagedFile(write.state, temporary_path)
+    except Exception as error:
+        if descriptor >= 0:
+            try:
+                os.close(descriptor)
+            except OSError as close_error:
+                _remove_temporary(temporary_path)
+                raise OSError(
+                    f"Stage Cline hook at {write.state.file_path}: {error}; "
+                    f"close failed: {close_error}"
+                ) from error
+        _remove_temporary(temporary_path)
+        raise OSError(
+            f"Stage Cline hook at {write.state.file_path}: {error}"
+        ) from error
+
+
+def _rollback_file(state: HookFile) -> None:
+    if state.exists:
+        if state.source is None:
+            raise RuntimeError("Existing Cline hook rollback state is missing source")
+        write_text_atomic(
+            state.file_path,
+            state.source,
+            0o700,
+            "Cline hook rollback",
+        )
+    else:
+        remove_file(state.file_path, "Cline hook rollback")
+
+
+def write_hook_pair(guard: PendingWrite, audit: PendingWrite) -> None:
+    staged: List[StagedFile] = []
+    try:
+        staged.append(_stage_file(guard))
+        staged.append(_stage_file(audit))
+    except Exception as error:
+        cleanup_errors: List[str] = []
+        for item in staged:
+            try:
+                _remove_temporary(item.temporary_path)
+            except OSError as cleanup_error:
+                cleanup_errors.append(str(cleanup_error))
+        suffix = f"; cleanup failed: {'; '.join(cleanup_errors)}" if cleanup_errors else ""
+        raise OSError(f"Stage Cline hook pair: {error}{suffix}") from error
+
+    committed: List[StagedFile] = []
+    try:
+        for item in staged:
+            os.replace(item.temporary_path, item.state.file_path)
+            committed.append(item)
+    except Exception as error:
+        recovery_errors: List[str] = []
+        for item in reversed(committed):
+            try:
+                _rollback_file(item.state)
+            except (OSError, RuntimeError) as rollback_error:
+                recovery_errors.append(str(rollback_error))
+        for item in staged[len(committed):]:
+            try:
+                _remove_temporary(item.temporary_path)
+            except OSError as cleanup_error:
+                recovery_errors.append(str(cleanup_error))
+        suffix = f"; recovery failed: {'; '.join(recovery_errors)}" if recovery_errors else ""
+        raise OSError(f"Write Cline hook pair: {error}{suffix}") from error
+
+
+def remove_owned_hooks(files: Sequence[HookFile], agent_id: str = "") -> None:
+    for file in files:
+        owned_agent_id = file.metadata.agent_id if file.metadata else ""
+        if not owned_agent_id or (
+            agent_id and not same_agent_id(owned_agent_id, agent_id)
+        ):
+            continue
+        remove_file(file.file_path, "Cline hook")
+
+
+def runtime_files_exist(contract: RuntimeContract) -> bool:
+    config_path = os.path.join(contract.agent_directory, "config.json")
+    config = read_json(config_path, "Elydora runtime config")
+    if config is None:
+        return False
+    config_agent_id = config.get("agent_id")
+    if (
+        config.get("agent_name") != AGENT_KEY
+        or not isinstance(config_agent_id, str)
+        or not same_agent_id(config_agent_id, contract.agent_id)
+    ):
+        return False
+    files: Tuple[Tuple[str, str], ...] = (
+        (contract.guard_path, "Elydora guard runtime"),
+        (contract.audit_path, "Elydora audit runtime"),
+    )
+    return all(regular_file_exists(path, label) for path, label in files)
+
+
+__all__ = [
+    "PendingWrite",
+    "read_hook_file",
+    "remove_owned_hooks",
+    "require_available_hook_file",
+    "require_runtime",
+    "runtime_files_exist",
+    "write_hook_pair",
+]

sdks/python/elydora/plugins/hook_template.py

@@ -206,9 +206,23 @@ def main():
         session_id = "unknown"
 
         if isinstance(event, dict):
-            tool_name = event.get("tool_name", event.get("toolName", event.get("name", "unknown")))
-            tool_input = event.get("tool_input", event.get("toolInput", event.get("input", {{}})))
-            session_id = event.get("session_id", event.get("sessionId", event.get("session", "unknown")))
+            cline_event = event.get("tool_result")
+            if not isinstance(cline_event, dict):
+                cline_event = event.get("tool_call")
+            if not isinstance(cline_event, dict):
+                cline_event = {{}}
+            tool_name = event.get(
+                "tool_name",
+                event.get("toolName", event.get("name", cline_event.get("name", "unknown"))),
+            )
+            tool_input = event.get(
+                "tool_input",
+                event.get("toolInput", event.get("input", cline_event.get("input", {{}}))),
+            )
+            session_id = event.get(
+                "session_id",
+                event.get("sessionId", event.get("session", event.get("taskId", "unknown"))),
+            )
 
         # Read chain state
         prev_chain_hash = read_chain_state()

sdks/python/elydora/plugins/registry.py

@@ -21,6 +21,11 @@ SUPPORTED_AGENTS: Dict[str, Dict[str, str]] = {
         "hook_event": "PreToolUse/PostToolUse",
         "config_path": "~/.codex/hooks.json",
     },
+    "cline": {
+        "name": "Cline",
+        "hook_event": "PreToolUse/PostToolUse",
+        "config_path": "~/.cline/hooks/PreToolUse.mjs",
+    },
     "copilot": {
         "name": "Copilot CLI",
         "hook_event": "PostToolUse",

sdks/python/tests/test_cline_plugin.py

@@ -0,0 +1,483 @@
+from __future__ import annotations
+
+import base64
+from dataclasses import dataclass
+from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
+import json
+import os
+from pathlib import Path
+from queue import Queue
+import shutil
+import subprocess  # nosec B404
+import sys
+from threading import Thread
+from typing import Any, Optional
+
+import pytest
+
+from elydora import cli
+from elydora.plugins import cline
+from elydora.plugins import cline_contract, cline_io
+from elydora.plugins.base import InstallConfig
+from elydora.plugins.registry import SUPPORTED_AGENTS
+
+
+AGENT_ID = "agent-1"
+MISSING = object()
+
+
+@dataclass(frozen=True)
+class ClineFixture:
+    plugin: cline.ClinePlugin
+    config: InstallConfig
+    home_dir: Path
+    workspace_dir: Path
+    cline_dir: Path
+    hooks_dir: Path
+    agent_dir: Path
+    guard_path: Path
+    audit_path: Path
+    guard_wrapper: Path
+    audit_wrapper: Path
+    runtime_config: Path
+
+
+def _python_script(body: str) -> str:
+    return f"#!{sys.executable}\n{body}"
+
+
+def prepare_fixture(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+    *,
+    auto_install: bool = True,
+    create_guard: bool = True,
+    existing_audit: Any = MISSING,
+    existing_guard: Any = MISSING,
+    guard_source: Optional[str] = None,
+) -> ClineFixture:
+    home_dir = tmp_path / "home with spaces"
+    workspace_dir = tmp_path / "workspace"
+    cline_dir = tmp_path / "custom-cline-home"
+    hooks_dir = cline_dir / "hooks"
+    agent_dir = home_dir / ".elydora" / AGENT_ID
+    guard_path = agent_dir / "guard.py"
+    audit_path = agent_dir / "hook.py"
+    guard_wrapper = hooks_dir / "PreToolUse.mjs"
+    audit_wrapper = hooks_dir / "PostToolUse.mjs"
+    workspace_dir.mkdir(parents=True)
+    agent_dir.mkdir(parents=True)
+    if create_guard:
+        guard_path.write_text(
+            guard_source
+            or _python_script(
+                "import sys\n"
+                "sys.stdin.read()\n"
+                "sys.stderr.write('Agent is frozen by Elydora.\\n')\n"
+                "raise SystemExit(2)\n"
+            ),
+            encoding="utf-8",
+        )
+    if existing_guard is not MISSING:
+        hooks_dir.mkdir(parents=True, exist_ok=True)
+        guard_wrapper.write_text(str(existing_guard), encoding="utf-8")
+    if existing_audit is not MISSING:
+        hooks_dir.mkdir(parents=True, exist_ok=True)
+        audit_wrapper.write_text(str(existing_audit), encoding="utf-8")
+
+    monkeypatch.setenv("HOME", str(home_dir))
+    monkeypatch.setenv("USERPROFILE", str(home_dir))
+    monkeypatch.setenv("CLINE_DIR", str(cline_dir))
+    private_key = base64.urlsafe_b64encode(bytes([1]) * 32).rstrip(b"=").decode()
+    config: InstallConfig = {
+        "agent_id": AGENT_ID,
+        "agent_name": "cline",
+        "org_id": "org-1",
+        "private_key": private_key,
+        "kid": "kid-1",
+        "base_url": "https://api.elydora.test",
+        "guard_script_path": str(guard_path),
+    }
+    fixture = ClineFixture(
+        plugin=cline.ClinePlugin(),
+        config=config,
+        home_dir=home_dir,
+        workspace_dir=workspace_dir,
+        cline_dir=cline_dir,
+        hooks_dir=hooks_dir,
+        agent_dir=agent_dir,
+        guard_path=guard_path,
+        audit_path=audit_path,
+        guard_wrapper=guard_wrapper,
+        audit_wrapper=audit_wrapper,
+        runtime_config=agent_dir / "config.json",
+    )
+    if auto_install:
+        fixture.plugin.install(config)
+    return fixture
+
+
+def run_wrapper(
+    wrapper: Path,
+    fixture: ClineFixture,
+    payload: dict[str, Any],
+) -> subprocess.CompletedProcess[str]:
+    node = shutil.which("node")
+    assert node is not None
+    return subprocess.run(  # nosec B603
+        [node, str(wrapper)],
+        cwd=fixture.workspace_dir,
+        env={
+            **os.environ,
+            "HOME": str(fixture.home_dir),
+            "USERPROFILE": str(fixture.home_dir),
+        },
+        input=json.dumps(payload),
+        text=True,
+        capture_output=True,
+        check=False,
+        timeout=10,
+    )
+
+
+def test_cline_is_registered_in_the_sdk_and_cli() -> None:
+    assert SUPPORTED_AGENTS["cline"] == {
+        "name": "Cline",
+        "hook_event": "PreToolUse/PostToolUse",
+        "config_path": "~/.cline/hooks/PreToolUse.mjs",
+    }
+    assert cli.PLUGIN_MAP["cline"] is cline.ClinePlugin
+
+
+def test_install_writes_only_native_global_hooks_and_is_idempotent(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(monkeypatch, tmp_path)
+    guard_source = fixture.guard_wrapper.read_text(encoding="utf-8")
+    audit_source = fixture.audit_wrapper.read_text(encoding="utf-8")
+
+    fixture.plugin.install(fixture.config)
+
+    assert fixture.guard_wrapper.read_text(encoding="utf-8") == guard_source
+    assert fixture.audit_wrapper.read_text(encoding="utf-8") == audit_source
+    assert guard_source.startswith("#!/usr/bin/env node\n// @elydora-cline-hook ")
+    assert list(fixture.hooks_dir.glob("*.tmp")) == []
+    assert not (fixture.home_dir / "Documents" / "Cline" / "Hooks").exists()
+    assert not (fixture.workspace_dir / ".cline" / "hooks").exists()
+    assert not (fixture.workspace_dir / ".clinerules" / "hooks").exists()
+
+
+def test_install_uses_official_default_without_cline_dir(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(monkeypatch, tmp_path, auto_install=False)
+    monkeypatch.delenv("CLINE_DIR")
+
+    fixture.plugin.install(fixture.config)
+
+    default_hooks = fixture.home_dir / ".cline" / "hooks"
+    assert (default_hooks / "PreToolUse.mjs").is_file()
+    assert (default_hooks / "PostToolUse.mjs").is_file()
+    assert not fixture.guard_wrapper.exists()
+
+
+def test_wrappers_translate_freezes_and_forward_payload_byte_for_byte(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(monkeypatch, tmp_path)
+    capture_path = tmp_path / "captured-event.json"
+    fixture.audit_path.write_text(
+        _python_script(
+            "from pathlib import Path\n"
+            "import os, sys\n"
+            f"Path({str(capture_path)!r}).write_text("
+            "json.dumps({'cwd': os.getcwd(), 'input': sys.stdin.read()}), "
+            "encoding='utf-8')\n"
+        ).replace("import os, sys", "import json, os, sys"),
+        encoding="utf-8",
+    )
+    pre_payload = {
+        "clineVersion": "3.0.46",
+        "hookName": "tool_call",
+        "taskId": "task-1",
+        "tool_call": {"name": "read_file", "input": {"path": "README.md"}},
+    }
+    guard = run_wrapper(fixture.guard_wrapper, fixture, pre_payload)
+    assert guard.returncode == 0
+    assert "Agent is frozen by Elydora" in guard.stderr
+    marker, control = guard.stdout.strip().split("\t", 1)
+    assert marker == "HOOK_CONTROL"
+    assert json.loads(control) == {
+        "cancel": True,
+        "errorMessage": "Agent is frozen by Elydora.",
+    }
+
+    post_payload = {
+        "clineVersion": "3.0.46",
+        "hookName": "tool_result",
+        "taskId": "task-1",
+        "tool_result": {"name": "read_file", "input": {"path": "README.md"}},
+    }
+    audit = run_wrapper(fixture.audit_wrapper, fixture, post_payload)
+    assert audit.returncode == 0
+    captured = json.loads(capture_path.read_text(encoding="utf-8"))
+    assert captured == {"cwd": str(fixture.workspace_dir), "input": json.dumps(post_payload)}
+
+
+def test_wrappers_keep_passes_quiet_and_surface_runtime_failures(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    passing = prepare_fixture(
+        monkeypatch,
+        tmp_path / "passing",
+        guard_source=_python_script("import sys\nsys.stdin.read()\n"),
+    )
+    result = run_wrapper(passing.guard_wrapper, passing, {})
+    assert result.returncode == 0
+    assert result.stdout == ""
+
+    failing = prepare_fixture(monkeypatch, tmp_path / "failing")
+    failing.audit_path.write_text(
+        _python_script(
+            "import sys\n"
+            "sys.stderr.write('audit failed\\n')\n"
+            "raise SystemExit(7)\n"
+        ),
+        encoding="utf-8",
+    )
+    result = run_wrapper(failing.audit_wrapper, failing, {})
+    assert result.returncode == 1
+    assert "audit failed" in result.stderr
+    assert "exited with code 7" in result.stderr
+
+
+def test_wrapper_rejects_a_non_absolute_runtime_shebang(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(
+        monkeypatch,
+        tmp_path,
+        guard_source="#!python.exe\nimport sys\nsys.stdin.read()\n",
+    )
+
+    result = run_wrapper(fixture.guard_wrapper, fixture, {})
+
+    assert result.returncode == 1
+    assert result.stdout == ""
+    assert "runtime shebang executable must be absolute" in result.stderr
+
+
+class _OperationHandler(BaseHTTPRequestHandler):
+    operations: Queue[dict[str, Any]]
+
+    def do_POST(self) -> None:  # noqa: N802
+        length = int(self.headers["Content-Length"])
+        body = json.loads(self.rfile.read(length).decode("utf-8"))
+        self.operations.put(body)
+        self.send_response(201)
+        self.end_headers()
+        self.wfile.write(b"{}")
+
+    def log_message(self, format: str, *args: Any) -> None:
+        return
+
+
+def test_audit_runtime_maps_official_nested_fields_into_the_operation(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    operations: Queue[dict[str, Any]] = Queue()
+    _OperationHandler.operations = operations
+    server = ThreadingHTTPServer(("127.0.0.1", 0), _OperationHandler)
+    thread = Thread(target=server.serve_forever, daemon=True)
+    thread.start()
+    fixture = prepare_fixture(monkeypatch, tmp_path, auto_install=False)
+    fixture.config["base_url"] = f"http://127.0.0.1:{server.server_port}"
+    try:
+        fixture.plugin.install(fixture.config)
+        payload = {
+            "hookName": "tool_result",
+            "taskId": "task-1",
+            "tool_result": {
+                "name": "read_file",
+                "input": {"path": "README.md"},
+                "output": "ok",
+            },
+        }
+        result = run_wrapper(fixture.audit_wrapper, fixture, payload)
+        assert result.returncode == 0
+        operation = operations.get(timeout=3)
+        assert operation["payload"] == {
+            "tool_name": "read_file",
+            "tool_input": {"path": "README.md"},
+            "session_id": "task-1",
+        }
+        assert operation["action"] == {"tool": "read_file"}
+        assert operation["subject"] == {"session_id": "task-1"}
+    finally:
+        server.shutdown()
+        server.server_close()
+        thread.join(timeout=3)
+
+
+def test_status_requires_intact_hooks_and_runtimes(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(monkeypatch, tmp_path)
+    assert fixture.plugin.status() == {
+        "installed": True,
+        "agent": "cline",
+        "details": f"Config: {fixture.hooks_dir}",
+    }
+    fixture.guard_path.unlink()
+    assert fixture.plugin.status()["installed"] is False
+    fixture.guard_path.write_text(_python_script("pass\n"), encoding="utf-8")
+    fixture.audit_wrapper.unlink()
+    assert fixture.plugin.status() == {
+        "installed": False,
+        "agent": "cline",
+        "details": "Not installed",
+    }
+
+
+def test_status_surfaces_corrupt_hooks_and_runtime_metadata(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(monkeypatch, tmp_path)
+    fixture.guard_wrapper.write_text(
+        fixture.guard_wrapper.read_text(encoding="utf-8") + "\n// tampered\n",
+        encoding="utf-8",
+    )
+    with pytest.raises(ValueError, match="managed template"):
+        fixture.plugin.status()
+
+    fixture.plugin.install(fixture.config)
+    fixture.runtime_config.write_text("{ malformed", encoding="utf-8")
+    with pytest.raises(ValueError, match="parse Elydora runtime config"):
+        fixture.plugin.status()
+
+
+@pytest.mark.parametrize("collision", ["guard", "audit"])
+def test_install_rejects_user_filename_collisions_before_writes(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+    collision: str,
+) -> None:
+    existing_guard = "// user PreToolUse hook\n" if collision == "guard" else MISSING
+    existing_audit = "// user PostToolUse hook\n" if collision == "audit" else MISSING
+    fixture = prepare_fixture(
+        monkeypatch,
+        tmp_path,
+        auto_install=False,
+        existing_guard=existing_guard,
+        existing_audit=existing_audit,
+    )
+    with pytest.raises(ValueError, match="owned by another integration"):
+        fixture.plugin.install(fixture.config)
+    assert fixture.audit_path.exists() is False
+    assert fixture.runtime_config.exists() is False
+    if collision == "guard":
+        assert fixture.guard_wrapper.read_text(encoding="utf-8") == existing_guard
+        assert fixture.audit_wrapper.exists() is False
+    else:
+        assert fixture.audit_wrapper.read_text(encoding="utf-8") == existing_audit
+        assert fixture.guard_wrapper.exists() is False
+
+
+def test_install_preserves_corrupt_metadata_for_recovery(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    corrupt = "#!/usr/bin/env node\n// @elydora-cline-hook invalid\n"
+    fixture = prepare_fixture(
+        monkeypatch,
+        tmp_path,
+        auto_install=False,
+        existing_guard=corrupt,
+    )
+    with pytest.raises(ValueError, match="parse Elydora Cline hook metadata"):
+        fixture.plugin.install(fixture.config)
+    assert fixture.guard_wrapper.read_text(encoding="utf-8") == corrupt
+    assert fixture.audit_wrapper.exists() is False
+    assert fixture.audit_path.exists() is False
+
+
+def test_install_rejects_missing_guard_before_creating_files(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(
+        monkeypatch,
+        tmp_path,
+        auto_install=False,
+        create_guard=False,
+    )
+    with pytest.raises(FileNotFoundError, match="guard runtime is missing"):
+        fixture.plugin.install(fixture.config)
+    assert fixture.guard_wrapper.exists() is False
+    assert fixture.audit_wrapper.exists() is False
+    assert fixture.audit_path.exists() is False
+    assert fixture.runtime_config.exists() is False
+
+
+def test_uninstall_removes_exact_ownership_and_preserves_other_hooks(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(monkeypatch, tmp_path)
+    user_hook = fixture.hooks_dir / "PreToolUse.py"
+    user_hook.write_text("# user hook\n", encoding="utf-8")
+
+    fixture.plugin.uninstall("agent-10")
+    assert fixture.guard_wrapper.is_file()
+    assert fixture.audit_wrapper.is_file()
+    fixture.plugin.uninstall(AGENT_ID)
+    assert fixture.guard_wrapper.exists() is False
+    assert fixture.audit_wrapper.exists() is False
+    assert user_hook.read_text(encoding="utf-8") == "# user hook\n"
+
+
+def test_hook_pair_restores_the_first_hook_when_the_second_commit_fails(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    fixture = prepare_fixture(monkeypatch, tmp_path)
+    original_guard = fixture.guard_wrapper.read_text(encoding="utf-8")
+    original_audit = fixture.audit_wrapper.read_text(encoding="utf-8")
+    guard_state = cline_io.read_hook_file(str(fixture.guard_wrapper))
+    audit_state = cline_io.read_hook_file(str(fixture.audit_wrapper))
+    replacement_guard = cline_contract.build_wrapper(
+        cline_contract.build_metadata("guard", "agent-2", str(fixture.guard_path))
+    )
+    replacement_audit = cline_contract.build_wrapper(
+        cline_contract.build_metadata("audit", "agent-2", str(fixture.audit_path))
+    )
+    real_replace = os.replace
+    failure_injected = False
+
+    def fail_audit_commit(source: Any, destination: Any) -> None:
+        nonlocal failure_injected
+        if not failure_injected and Path(destination) == fixture.audit_wrapper:
+            failure_injected = True
+            raise OSError("simulated audit commit failure")
+        real_replace(source, destination)
+
+    monkeypatch.setattr(os, "replace", fail_audit_commit)
+
+    with pytest.raises(OSError, match="Write Cline hook pair"):
+        cline_io.write_hook_pair(
+            cline_io.PendingWrite(guard_state, replacement_guard),
+            cline_io.PendingWrite(audit_state, replacement_audit),
+        )
+
+    assert failure_injected is True
+    assert fixture.guard_wrapper.read_text(encoding="utf-8") == original_guard
+    assert fixture.audit_wrapper.read_text(encoding="utf-8") == original_audit
+    assert list(fixture.hooks_dir.glob("*.tmp")) == []