# Validation Report: Story Context 3-10 Delete Binding Operation

**Document:** docs-bmad/sprint-artifacts/stories/3-10-delete-binding-operation.context.xml
**Checklist:** .bmad/bmm/workflows/4-implementation/story-context/checklist.md
**Date:** 2026-02-12 09:18:52
**Validator:** SM Agent (Bob)

## Summary
- **Overall:** 10/10 passed (100%) ✓
- **Critical Issues:** 2 FOUND and FIXED
- **Status:** PASS (after fixes applied)

## Validation Results

### Section: Story Context Assembly Checklist

**Pass Rate:** 10/10 (100%)

#### ✓ PASS - Story fields (asA/iWant/soThat) captured
**Evidence:** Lines 13-15 in context.xml
```xml
<asA>DevOps engineer</asA>
<iWant>to delete specific bindings</iWant>
<soThat>I can modify message routing without recreating entire topology</soThat>
```
**Impact:** Story user narrative is complete and matches draft story exactly.

#### ✓ PASS - Acceptance criteria list matches story draft exactly (no invention)
**Evidence:** Lines 28-36 in context.xml contain all 7 acceptance criteria matching lines 11-19 in story draft
```xml
1. Given an existing binding... When I execute "bindings.delete"... Then the specific binding is deleted
2. And other bindings between same source and destination remain intact
3. And successful deletion returns: status="success", message="Binding deleted"
4. And non-existent binding returns error...
5. And deletion operation completes in <100ms
6. And deletion is logged in audit trail
7. And no confirmation required
```
**Impact:** All acceptance criteria accurately transferred with no additions or modifications.

#### ✓ PASS - Tasks/subtasks captured as task list
**Evidence:** Lines 16-25 in context.xml
```xml
- Task 1: Create Delete Binding Request Schema (AC: #1, #4)
- Task 2: Implement DeleteBindingOperation Class (AC: #1, #2, #5)
- Task 3: Pre-Deletion Validation and properties_key Retrieval (AC: #4, #7)
- Task 4: Handle Non-Existent Binding Errors (AC: #4)
- Task 5: Add Structured Logging and Audit Trail (AC: #6)
- Task 6: Add Performance Monitoring (AC: #5)
- Task 7: Register MCP Tool in Operation Registry (AC: #1)
- Task 8: Integration Testing (AC: #1, #2, #3, #4, #5)
```
**Impact:** Complete task breakdown with AC mappings for traceability.

#### ✓ PASS - Relevant docs (5-15) included with path and snippets
**Evidence:** Lines 39-78 in context.xml (AFTER FIX)
- Initial: Only 3 doc artifacts
- **FIXED:** Added 3 additional artifacts:
  1. ADR-009: Structured Logging with correlation_id requirements
  2. implementation-patterns.md: Error handling patterns and ResourceNotFoundError usage
  3. non-functional-requirements.md: Performance latency requirements (<100ms target)
- **Final Count:** 6 doc artifacts (within recommended 5-15 range)

**Doc Artifacts:**
1. tech-spec-epic-3.md - Binding Model, properties_key retrieval
2. 3-9-create-binding-operation.md - Reusable patterns from previous story
3. epic-3-topology-operations.md - Story 3.10 context
4. architecture-decision-records-adrs.md - ADR-009 structured logging
5. implementation-patterns.md - Error handling patterns
6. non-functional-requirements.md - Performance requirements

**Impact:** Comprehensive documentation coverage for dev context. Critical ADR and error handling patterns now included.

#### ✓ PASS - Relevant code references included with reason and line hints
**Evidence:** Lines 80-123 in context.xml (AFTER FIX)
- Initial: 6 code artifacts, but missing DeleteBindingResponse schema reference
- **FIXED:** Updated topology.py schema artifact to include DeleteBindingResponse in symbols
- **Final:** 6 code artifacts with complete symbol references

**Code Artifacts:**
1. schemas/topology.py - CreateBindingRequest, BindingInfo, DeleteBindingResponse
2. operations/topology.py - CreateBindingOperation, ListBindingsOperation patterns
3. http_client.py - HTTPClientManager with DELETE method
4. operations/registry.py - bindings.delete registration
5. test_topology.py - Schema validation test patterns
6. test_binding_operations.py - Integration test patterns

**Impact:** All necessary code references present with appropriate line hints and reasons.

#### ✓ PASS - Interfaces/API contracts extracted if applicable
**Evidence:** Lines 156-195 in context.xml (AFTER FIX)
- Initial: Missing DeleteBindingResponse schema definition
- **FIXED:** Added complete DeleteBindingResponse interface with signature

**Interfaces Defined:**
1. DeleteBindingRequest (Pydantic schema) - Input validation
2. **DeleteBindingResponse (Pydantic schema) - Operation result** ← ADDED
3. DeleteBindingOperation.execute (async method) - Main operation
4. ListBindingsOperation.execute (async method) - properties_key retrieval
5. HTTPClientManager.delete (async method) - HTTP DELETE requests

**DeleteBindingResponse Signature (ADDED):**
```python
class DeleteBindingResponse(BaseModel):
    status: Literal["success", "error"]
    message: str  # "Binding deleted" on success, error details on failure
    source: str
    destination: str
    routing_key: str
    vhost: str
    destination_type: str
    correlation_id: str
    duration_ms: float | None = None
```

**Impact:** Critical response schema now defined, ensuring consistent operation result structure.

#### ✓ PASS - Constraints include applicable dev rules and patterns
**Evidence:** Lines 137-153 in context.xml
- HTTP DELETE endpoint patterns for queue/exchange destinations
- properties_key retrieval requirement via ListBindingsOperation
- URL encoding rules (vhost "/" → "%2F")
- Multiple bindings handling (exact match only)
- No confirmation required (low risk operation)
- Response code handling (204 success, 404 not found)
- Performance target (<100ms completion)
- Correlation_id for audit trail (ADR-009)
- Async/await pattern with HTTPClientManager
- Field validators (max 255 chars, alphanumeric restrictions)
- routing_key cannot be empty

**Impact:** Comprehensive constraints covering API patterns, validation, performance, and logging requirements.

#### ✓ PASS - Dependencies detected from manifests and frameworks
**Evidence:** Lines 125-134 in context.xml
```xml
<python>
  <package name="httpx" version=">=0.27" reason="Async HTTP client for RabbitMQ Management API" />
  <package name="pydantic" version=">=2.0" reason="Schema validation for DeleteBindingRequest" />
  <package name="structlog" version=">=24.1" reason="Structured logging with correlation_id for audit trail" />
  <package name="pytest" version=">=8.0" reason="Testing framework for unit and integration tests" />
  <package name="pytest-asyncio" version=">=0.23" reason="Async test support" />
  <package name="testcontainers" version=">=3.7" reason="RabbitMQ container for integration tests" />
</python>
```
**Impact:** All runtime and testing dependencies identified with versions and reasons.

#### ✓ PASS - Testing standards and locations populated
**Evidence:** Lines 197-217 in context.xml

**Testing Standards:**
- pytest framework with pytest-asyncio for async tests
- Three-layer strategy: unit tests (mocked), integration tests (testcontainers), performance tests (<100ms)
- Correlation_id tracking and structured logging validation
- Mock HTTP responses: 204 No Content (success), 404 Not Found (not found)
- AAA pattern (Arrange-Act-Assert) in all test cases

**Testing Locations:**
1. tests/unit/rabbitmq_mcp_connection/schemas/test_topology.py (schema validation)
2. tests/unit/rabbitmq_mcp_connection/operations/test_delete_binding_operation.py (operation tests)
3. tests/integration/test_binding_operations.py (integration tests with RabbitMQ)

**Test Ideas:** 8 test scenarios mapped to acceptance criteria and tasks covering:
- Successful deletion flow
- Multiple bindings preservation
- Response format validation
- Error handling (404)
- Performance monitoring (<100ms)
- Audit logging with correlation_id
- No confirmation required
- Schema validation edge cases

**Impact:** Comprehensive testing strategy with clear locations and scenarios.

#### ✓ PASS - XML structure follows story-context template format
**Evidence:** Lines 1-217 in context.xml
```xml
<story-context id=".bmad/bmm/workflows/4-implementation/story-context/template" v="1.0">
  <metadata>...</metadata>
  <story>...</story>
  <acceptanceCriteria>...</acceptanceCriteria>
  <artifacts>
    <docs>...</docs>
    <code>...</code>
    <dependencies>...</dependencies>
  </artifacts>
  <constraints>...</constraints>
  <interfaces>...</interfaces>
  <tests>...</tests>
</story-context>
```
**Impact:** Proper XML structure conforming to story-context template v1.0.

## Issues Fixed

### 1. CRITICAL: Missing DeleteBindingResponse Interface
**Category:** Interface Definition Gap
**Impact:** HIGH - Dev agent would need to infer response schema structure
**Fix Applied:**
- Added complete DeleteBindingResponse Pydantic schema to interfaces section (lines 156-174)
- Included all fields: status, message, source, destination, routing_key, vhost, destination_type, correlation_id, duration_ms
- Updated code artifact reference in topology.py to include DeleteBindingResponse in symbols list

**Evidence of Fix:**
```xml
<interface>
  <name>DeleteBindingResponse</name>
  <kind>Pydantic schema</kind>
  <signature>class DeleteBindingResponse(BaseModel):
    status: Literal["success", "error"]
    message: str
    source: str
    destination: str
    routing_key: str
    vhost: str
    destination_type: str
    correlation_id: str
    duration_ms: float | None = None
  </signature>
  <path>src/rabbitmq_mcp_connection/schemas/topology.py</path>
</interface>
```

### 2. PARTIAL: Insufficient Documentation Artifacts
**Category:** Documentation Coverage
**Impact:** MEDIUM - Missing critical architectural context (ADR-009, error patterns, NFRs)
**Fix Applied:**
- Added 3 additional doc artifacts to reach 6 total (within 5-15 recommended range)
- Added: ADR-009 Structured Logging (correlation_id requirements)
- Added: implementation-patterns.md Error Handling (ResourceNotFoundError, error codes)
- Added: non-functional-requirements.md Performance (latency targets)

**Evidence of Fix:**
```xml
<artifact>
  <path>docs-bmad/architecture/architecture-decision-records-adrs.md</path>
  <title>Architecture Decision Records</title>
  <section>ADR-009: Structured Logging</section>
  <snippet>JSON-structured logs via structlog with automatic context binding...</snippet>
</artifact>
<artifact>
  <path>docs-bmad/architecture/implementation-patterns.md</path>
  <title>Implementation Patterns</title>
  <section>Error Handling</section>
  <snippet>Error Response Schema includes error_code, message, context...</snippet>
</artifact>
<artifact>
  <path>docs-bmad/prd/non-functional-requirements.md</path>
  <title>Non-Functional Requirements</title>
  <section>Performance Latency Requirements</section>
  <snippet>Operation execution: <200ms for HTTP operations (p95)...</snippet>
</artifact>
```

## Recommendations

### Must Fix: ✓ COMPLETED
1. ✅ Add DeleteBindingResponse interface definition - **FIXED**
2. ✅ Increase doc artifacts to at least 5 (ADR-009, error handling, NFRs) - **FIXED**

### Should Improve: NONE
All critical items addressed. Story context is now complete and ready for dev.

### Consider: OPTIONAL ENHANCEMENTS
1. **Add properties_key example:** Include sample properties_key format in constraints (e.g., "orders.%23" for "orders.#")
2. **Reference DeleteBindingResponse in Task 2:** Explicitly mention DeleteBindingResponse creation in Task 2 subtasks
3. **Add example error scenarios:** Include specific error response examples in constraints section

**Note:** These are minor enhancements. Current context is sufficient for development.

## Final Assessment

**VALIDATION STATUS:** ✅ PASS

All 10 checklist items now pass validation. Two critical issues were identified and fixed:
1. Missing DeleteBindingResponse interface - essential for consistent operation results
2. Insufficient documentation artifacts - critical architectural patterns now included

Story context is now **complete and ready for development** with comprehensive:
- User story and acceptance criteria
- Task breakdown with AC mappings
- 6 relevant documentation artifacts (architecture, patterns, requirements)
- 6 code reference artifacts with line hints
- 5 complete interface definitions including response schema
- Comprehensive constraints and patterns
- Full dependency list
- Detailed testing strategy

**Confidence Level:** HIGH - Dev agent has all necessary context to implement Story 3.10 successfully.

---

**Validator:** SM Agent (Bob - Claude 3.7 Sonnet)
**Generated:** 2026-02-12 09:18:52
**Action Taken:** Fixed all issues, no further action required
