diff --git a/.ai/ROOT.md b/.ai/ROOT.md
index 9c4c29b..c01585a 100644
--- a/.ai/ROOT.md
+++ b/.ai/ROOT.md
@@ -1,7 +1,7 @@
 # [DEF:Project_Knowledge_Map:Root]
 # @TIER: CRITICAL
 # @PURPOSE: Global navigation map for AI-Agent (GRACE Knowledge Graph).
-# @LAST_UPDATE: 2026-02-19
+# @LAST_UPDATE: 2026-02-20
 
 ## 1. SYSTEM STANDARDS (Rules of the Game)
 Strict policies and formatting rules.
@@ -26,6 +26,8 @@ Use these for code generation (Style Transfer).
     *   Ref: `.ai/shots/frontend_component.svelte` -> `[DEF:Shot:Svelte_Component]`
 *   **Plugin Module:** Reference implementation of a task plugin.
     *   Ref: `.ai/shots/plugin_example.py` -> `[DEF:Shot:Plugin_Example]`
+*   **Critical Module:** Core banking transaction processor with ACID guarantees.
+    *   Ref: `.ai/shots/critical_module.py` -> `[DEF:Shot:Critical_Module]`
 
 ## 3. DOMAIN MAP (Modules)
 *   **Project Map:** `.ai/PROJECT_MAP.md` -> `[DEF:Project_Map]`
diff --git a/.ai/shots/backend_route.py b/.ai/shots/backend_route.py
index 76d829d..b5239e7 100644
--- a/.ai/shots/backend_route.py
+++ b/.ai/shots/backend_route.py
@@ -1,14 +1,18 @@
-# [DEF:Shot:FastAPI_Route:Example]
+# [DEF:BackendRouteShot:Module]
+# @TIER: STANDARD
+# @SEMANTICS: Route, Task, API, Async
 # @PURPOSE: Reference implementation of a task-based route using GRACE-Poly.
+# @LAYER: Interface (API)
 # @RELATION: IMPLEMENTS -> [DEF:Std:API_FastAPI]
+# @INVARIANT: TaskManager must be available in dependency graph.
 
-from typing import List, Dict, Any, Optional
+from typing import Dict, Any
 from fastapi import APIRouter, Depends, HTTPException, status
 from pydantic import BaseModel
 from ...core.logger import belief_scope
 from ...core.task_manager import TaskManager, Task
 from ...core.config_manager import ConfigManager
-from ...dependencies import get_task_manager, get_config_manager, has_permission, get_current_user
+from ...dependencies import get_task_manager, get_config_manager, get_current_user
 
 router = APIRouter()
 
@@ -21,37 +25,41 @@ class CreateTaskRequest(BaseModel):
 # @PURPOSE: Create and start a new task using TaskManager. Non-blocking.
 # @PARAM: request (CreateTaskRequest) - Plugin and params.
 # @PARAM: task_manager (TaskManager) - Async task executor.
-# @PARAM: config (ConfigManager) - Centralized configuration.
-# @PRE: plugin_id must exist; config must be initialized.
+# @PRE: plugin_id must match a registered plugin.
 # @POST: A new task is spawned; Task ID returned immediately.
+# @SIDE_EFFECT: Writes to DB, Trigger background worker.
 async def create_task(
     request: CreateTaskRequest,
     task_manager: TaskManager = Depends(get_task_manager),
     config: ConfigManager = Depends(get_config_manager),
     current_user = Depends(get_current_user)
 ):
-    # RBAC: Dynamic permission check
-    has_permission(f"plugin:{request.plugin_id}", "EXECUTE")(current_user)
-    
+    # Context Logging
     with belief_scope("create_task"):
         try:
-            # 1. Action: Resolve setting using ConfigManager (Example)
+            # 1. Action: Configuration Resolution
             timeout = config.get("TASKS_DEFAULT_TIMEOUT", 3600)
 
-            # 2. Action: Spawn async task via TaskManager
+            # 2. Action: Spawn async task
             # @RELATION: CALLS -> task_manager.create_task
             task = await task_manager.create_task(
                 plugin_id=request.plugin_id,
                 params={**request.params, "timeout": timeout}
             )
             return task
+            
+        except ValueError as e:
+             # 3. Recovery: Domain logic error mapping
+            raise HTTPException(
+                status_code=status.HTTP_400_BAD_REQUEST, 
+                detail=str(e)
+            )
         except Exception as e:
-            # Evaluation: Proper error mapping and logging
-            # @UX_STATE: Error feedback to frontend
+            # @UX_STATE: Error feedback -> 500 Internal Error
             raise HTTPException(
                 status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, 
-                detail=f"Task creation failed: {str(e)}"
+                detail="Internal Task Spawning Error"
             )
 # [/DEF:create_task:Function]
 
-# [/DEF:Shot:FastAPI_Route]
+# [/DEF:BackendRouteShot:Module]
\ No newline at end of file
diff --git a/.ai/shots/critical_module.py b/.ai/shots/critical_module.py
new file mode 100644
index 0000000..309f03e
--- /dev/null
+++ b/.ai/shots/critical_module.py
@@ -0,0 +1,79 @@
+# [DEF:TransactionCore:Module]
+# @TIER: CRITICAL
+# @SEMANTICS: Finance, ACID, Transfer, Ledger
+# @PURPOSE: Core banking transaction processor with ACID guarantees.
+# @LAYER: Domain (Core)
+# @RELATION: DEPENDS_ON -> [DEF:Infra:PostgresDB]
+# @RELATION: DEPENDS_ON -> [DEF:Infra:AuditLog]
+# @INVARIANT: Total system balance must remain constant (Double-Entry Bookkeeping).
+# @INVARIANT: Negative transfers are strictly forbidden.
+
+# @TEST_DATA: sufficient_funds -> {"from": "acc_A", "to": "acc_B", "amt": 100.00}
+# @TEST_DATA: insufficient_funds -> {"from": "acc_empty", "to": "acc_B", "amt": 1000.00}
+# @TEST_DATA: concurrency_lock -> {./fixtures/transactions.json#race_condition}
+
+from decimal import Decimal
+from typing import NamedTuple
+from ...core.logger import belief_scope
+from ...core.db import atomic_transaction, get_balance, update_balance
+from ...core.exceptions import BusinessRuleViolation
+
+class TransferResult(NamedTuple):
+    tx_id: str
+    status: str
+    new_balance: Decimal
+
+# [DEF:execute_transfer:Function]
+# @PURPOSE: Atomically move funds between accounts with audit trails.
+# @PARAM: sender_id (str) - Source account.
+# @PARAM: receiver_id (str) - Destination account.
+# @PARAM: amount (Decimal) - Positive amount to transfer.
+# @PRE: amount > 0; sender != receiver; sender_balance >= amount.
+# @POST: sender_balance -= amount; receiver_balance += amount; Audit Record Created.
+# @SIDE_EFFECT: Database mutation (Rows locked), Audit IO.
+#
+# @UX_STATE: Success -> Returns 200 OK + Transaction Receipt.
+# @UX_STATE: Error(LowBalance) -> 422 Unprocessable -> UI shows "Top-up needed" modal.
+# @UX_STATE: Error(System) -> 500 Internal -> UI shows "Retry later" toast.
+def execute_transfer(sender_id: str, receiver_id: str, amount: Decimal) -> TransferResult:
+    # Guard: Input Validation
+    if amount <= Decimal("0.00"):
+        raise BusinessRuleViolation("Transfer amount must be positive.")
+    if sender_id == receiver_id:
+        raise BusinessRuleViolation("Cannot transfer to self.")
+
+    with belief_scope("execute_transfer") as context:
+        context.logger.info("Initiating transfer", data={"from": sender_id, "to": receiver_id})
+
+        try:
+            # 1. Action: Atomic DB Transaction
+            # @RELATION: CALLS -> atomic_transaction
+            with atomic_transaction():
+                # Guard: State Validation (Strict)
+                current_balance = get_balance(sender_id, for_update=True)
+                
+                if current_balance < amount:
+                    # @UX_FEEDBACK: Triggers specific UI flow for insufficient funds
+                    context.logger.warn("Insufficient funds", data={"balance": current_balance})
+                    raise BusinessRuleViolation("INSUFFICIENT_FUNDS")
+
+                # 2. Action: Mutation
+                new_src_bal = update_balance(sender_id, -amount)
+                new_dst_bal = update_balance(receiver_id, +amount)
+
+                # 3. Action: Audit
+                tx_id = context.audit.log_transfer(sender_id, receiver_id, amount)
+                
+                context.logger.info("Transfer committed", data={"tx_id": tx_id})
+                return TransferResult(tx_id, "COMPLETED", new_src_bal)
+
+        except BusinessRuleViolation as e:
+            # Logic: Explicit re-raise for UI mapping
+            raise e
+        except Exception as e:
+            # Logic: Catch-all safety net
+            context.logger.error("Critical Transfer Failure", error=e)
+            raise RuntimeError("TRANSACTION_ABORTED") from e
+# [/DEF:execute_transfer:Function]
+
+# [/DEF:TransactionCore:Module]
\ No newline at end of file
diff --git a/.ai/shots/frontend_component.svelte b/.ai/shots/frontend_component.svelte
index 05bd165..5309939 100644
--- a/.ai/shots/frontend_component.svelte
+++ b/.ai/shots/frontend_component.svelte
@@ -1,19 +1,23 @@
-<!-- [DEF:Shot:Svelte_Component:Example] -->
-# @PURPOSE: Reference implementation of a task-spawning component using Constitution rules.
-# @RELATION: IMPLEMENTS -> [DEF:Std:UI_Svelte]
-
+<!-- [DEF:FrontendComponentShot:Component] -->
 <script>
   /**
-   * @TIER: STANDARD
-   * @PURPOSE: Action button to spawn a new task.
-   * @LAYER: UI
-   * @SEMANTICS: Task, Creation, Button
+   * @TIER: CRITICAL
+   * @SEMANTICS: Task, Button, Action, UX
+   * @PURPOSE: Action button to spawn a new task with full UX feedback cycle.
+   * @LAYER: UI (Presentation)
    * @RELATION: CALLS -> postApi
+   * @INVARIANT: Must prevent double-submission while loading.
    * 
-   * @UX_STATE: Idle -> Button enabled with primary color.
-   * @UX_STATE: Loading -> Button disabled with spinner while postApi resolves.
-   * @UX_FEEDBACK: toast.success on completion; toast.error on failure.
-   * @UX_TEST: Idle -> {click: spawnTask, expected: loading state then success}
+   * @TEST_DATA: idle_state -> {"isLoading": false}
+   * @TEST_DATA: loading_state -> {"isLoading": true}
+   * 
+   * @UX_STATE: Idle -> Button enabled, primary color.
+   * @UX_STATE: Loading -> Button disabled, spinner visible.
+   * @UX_STATE: Error -> Toast notification triggers.
+   * 
+   * @UX_FEEDBACK: Toast success/error.
+   * @UX_TEST: Idle -> {click: spawnTask, expected: isLoading=true}
+   * @UX_TEST: Success -> {api_resolve: 200, expected: toast.success called}
    */
   import { postApi } from "$lib/api.js";
   import { t } from "$lib/i18n";
@@ -24,40 +28,43 @@
 
   let isLoading = false;
 
-  async def spawnTask() {
+  // [DEF:spawnTask:Function]
+  async function spawnTask() {
     isLoading = true;
+    console.log("[FrontendComponentShot][Loading] Spawning task...");
+    
     try {
-      // 1. Action: Constitution Rule - MUST use postApi wrapper
+      // 1. Action: API Call
       const response = await postApi("/api/tasks", {
         plugin_id,
         params
       });
 
-      // 2. Feedback: UX state management
+      // 2. Feedback: Success
       if (response.task_id) {
+        console.log("[FrontendComponentShot][Success] Task created.");
         toast.success($t.tasks.spawned_success);
       }
     } catch (error) {
-      // 3. Recovery: Evaluation & UI reporting
+      // 3. Recovery: User notification
+      console.log("[FrontendComponentShot][Error] Failed:", error);
       toast.error(`${$t.errors.task_failed}: ${error.message}`);
     } finally {
       isLoading = false;
     }
   }
+  // [/DEF:spawnTask:Function]
 </script>
 
-<button 
+<button
   on:click={spawnTask}
   disabled={isLoading}
-  class="bg-blue-600 hover:bg-blue-700 text-white px-4 py-2 rounded-lg flex items-center gap-2"
+  class="btn-primary flex items-center gap-2"
+  aria-busy={isLoading}
 >
   {#if isLoading}
-    <span class="animate-spin text-sm">🌀</span>
+    <span class="animate-spin" aria-label="Loading">🌀</span>
   {/if}
   <span>{$t.actions.start_task}</span>
 </button>
-
-<style>
-  /* Local styles minimized as per Constitution Rule III */
-</style>
-<!-- [/DEF:Shot:Svelte_Component] -->
+<!-- [/DEF:FrontendComponentShot:Component] -->
\ No newline at end of file
diff --git a/.ai/shots/plugin_example.py b/.ai/shots/plugin_example.py
index 8c10d8e..28d169a 100644
--- a/.ai/shots/plugin_example.py
+++ b/.ai/shots/plugin_example.py
@@ -1,6 +1,10 @@
-# [DEF:Shot:Plugin_Example:Example]
+# [DEF:PluginExampleShot:Module]
+# @TIER: STANDARD
+# @SEMANTICS: Plugin, Core, Extension
 # @PURPOSE: Reference implementation of a plugin following GRACE standards.
-# @RELATION: IMPLEMENTS -> [DEF:Std:Plugin]
+# @LAYER: Domain (Business Logic)
+# @RELATION: INHERITS -> PluginBase
+# @INVARIANT: get_schema must return valid JSON Schema.
 
 from typing import Dict, Any, Optional
 from ..core.plugin_base import PluginBase
@@ -11,28 +15,15 @@ class ExamplePlugin(PluginBase):
     def id(self) -> str:
         return "example-plugin"
 
-    @property
-    def name(self) -> str:
-        return "Example Plugin"
-
-    @property
-    def description(self) -> str:
-        return "A simple plugin that demonstrates structured logging and progress tracking."
-
-    @property
-    def version(self) -> str:
-        return "1.0.0"
-
     # [DEF:get_schema:Function]
     # @PURPOSE: Defines input validation schema.
+    # @POST: Returns dict compliant with JSON Schema draft 7.
     def get_schema(self) -> Dict[str, Any]:
         return {
             "type": "object",
             "properties": {
                 "message": {
                     "type": "string",
-                    "title": "Message",
-                    "description": "A message to log.",
                     "default": "Hello, GRACE!",
                 }
             },
@@ -41,27 +32,33 @@ class ExamplePlugin(PluginBase):
     # [/DEF:get_schema:Function]
 
     # [DEF:execute:Function]
-    # @PURPOSE: Core plugin logic with structured logging and progress reporting.
+    # @PURPOSE: Core plugin logic with structured logging and scope isolation.
     # @PARAM: params (Dict) - Validated input parameters.
-    # @PARAM: context (TaskContext) - Execution context with logging and progress tools.
-    async def execute(self, params: Dict[str, Any], context: Optional[TaskContext] = None):
-        message = params["message"]
+    # @PARAM: context (TaskContext) - Execution tools (log, progress).
+    # @SIDE_EFFECT: Emits logs to centralized system.
+    async def execute(self, params: Dict, context: Optional = None):
+        message = params
         
-        # 1. Action: Structured Logging with Source Attribution
-        if context:
-            log = context.logger.with_source("example_plugin")
-            log.info(f"Starting execution with message: {message}")
-
-            # 2. Action: Progress Reporting
-            log.progress("Processing step 1...", percent=25)
-            # Simulating some async work...
-            # await some_async_op()
-
-            log.progress("Processing step 2...", percent=75)
-            log.info("Execution completed successfully.")
-        else:
-            # Fallback for manual/standalone execution
-            print(f"Standalone execution: {message}")
+        # 1. Action: System-level tracing (Rule VI)
+        with belief_scope("example_plugin_exec") as b_scope:
+            if context:
+                # Task Logs: Пишем в пользовательский контекст выполнения задачи
+                # @RELATION: BINDS_TO -> context.logger
+                log = context.logger.with_source("example_plugin")
+                
+                b_scope.logger.info("Using provided TaskContext") # System log
+                log.info("Starting execution", data={"msg": message}) # Task log
+                
+                # 2. Action: Progress Reporting
+                log.progress("Processing...", percent=50)
+                
+                # 3. Action: Finalize
+                log.info("Execution completed.")
+            else:
+                # Standalone Fallback: Замыкаемся на системный scope
+                b_scope.logger.warning("No TaskContext provided. Running standalone.")
+                b_scope.logger.info("Standalone execution", data={"msg": message})
+                print(f"Standalone: {message}")
     # [/DEF:execute:Function]
 
-# [/DEF:Shot:Plugin_Example]
+# [/DEF:PluginExampleShot:Module]
\ No newline at end of file