DL-5: Implement ProposedChange CRUD operations for MongoDB#67
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Co-authored-by: spuentesp <112034353+spuentesp@users.noreply.github.com>
Co-authored-by: spuentesp <112034353+spuentesp@users.noreply.github.com>
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Pull request overview
This PR implements MongoDB CRUD operations for ProposedChange documents, which serve as staging records for canonical changes that CanonKeeper evaluates at scene end. The implementation supports five types of proposals (fact, entity, relationship, state_change, event) with status transitions from pending to accepted/rejected.
Key Changes
- Introduced comprehensive schemas for ProposedChange operations including validation, evidence tracking, and decision metadata
- Implemented four MongoDB operations: create, get, list (with filtering/pagination), and update with status transition enforcement
- Added authorization rules allowing any agent to create/read proposals while restricting status updates to CanonKeeper only
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.
Show a summary per file
| File | Description |
|---|---|
packages/data-layer/src/monitor_data/schemas/proposed_changes.py |
Defines schemas for ProposedChange CRUD operations with validation for scene_id/story_id, Evidence, and DecisionMetadata |
packages/data-layer/src/monitor_data/tools/mongodb_tools.py |
Implements create, get, list, and update operations with scene/story validation, flexible filtering, and status transition enforcement |
packages/data-layer/src/monitor_data/middleware/auth.py |
Adds authority rules for the four new operations (create/read: all agents, update: CanonKeeper only) |
packages/data-layer/tests/test_tools/test_proposed_change_tools.py |
Provides 19 comprehensive tests covering all change types, filters, status transitions, and validation scenarios |
packages/data-layer/tests/conftest.py |
Adds shared story_data fixture for use across test files |
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| def test_create_proposed_change_entity( | ||
| mock_get_mongo: Mock, | ||
| mock_get_neo4j: Mock, | ||
| mock_mongodb_client: Mock, | ||
| mock_neo4j_client: Mock, | ||
| scene_doc_data: Dict[str, Any], | ||
| ): | ||
| """Test creating a proposed change with type 'entity'.""" | ||
| mock_get_mongo.return_value = mock_mongodb_client | ||
| mock_get_neo4j.return_value = mock_neo4j_client | ||
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| # Mock MongoDB collections | ||
| scenes_collection = Mock() | ||
| proposed_changes_collection = Mock() | ||
| mock_mongodb_client.get_collection.side_effect = lambda name: { | ||
| "scenes": scenes_collection, | ||
| "proposed_changes": proposed_changes_collection, | ||
| }[name] | ||
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| scenes_collection.find_one.return_value = scene_doc_data | ||
| scenes_collection.update_one.return_value = Mock() | ||
| proposed_changes_collection.insert_one.return_value = Mock() | ||
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| params = ProposedChangeCreate( | ||
| scene_id=UUID(scene_doc_data["scene_id"]), | ||
| change_type=ProposalType.ENTITY, | ||
| content={ | ||
| "name": "Gandalf", | ||
| "entity_type": "character", | ||
| "properties": {"race": "Maia", "class": "Wizard"}, | ||
| }, | ||
| confidence=1.0, | ||
| authority=Authority.GM, | ||
| proposer="CanonKeeper", | ||
| ) | ||
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| result = mongodb_create_proposed_change(params) | ||
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| assert result.change_type == ProposalType.ENTITY | ||
| assert result.content["name"] == "Gandalf" | ||
| assert result.authority == Authority.GM | ||
| proposed_changes_collection.insert_one.assert_called_once() | ||
|
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Missing test coverage for ProposalType.STATE_CHANGE. While tests cover FACT, ENTITY, RELATIONSHIP, and EVENT types, there's no test creating a proposed change with change_type=ProposalType.STATE_CHANGE. Add a test similar to test_create_proposed_change_entity but for state changes.
| @field_validator("scene_id", "story_id") | ||
| @classmethod | ||
| def validate_scene_or_story(cls, v: Optional[UUID], info) -> Optional[UUID]: | ||
| """Validate that at least one of scene_id or story_id is provided.""" | ||
| # If this is scene_id being validated and it's None, check if story_id exists | ||
| if info.field_name == "scene_id" and v is None: | ||
| # We can't check story_id here as it might not be set yet | ||
| pass | ||
| return v | ||
|
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The field_validator for scene_id and story_id doesn't perform any actual validation. The validator body is empty (just a pass statement), making it ineffective. The actual validation is performed in model_post_init, so this validator can be removed entirely as it serves no purpose.
| @field_validator("scene_id", "story_id") | |
| @classmethod | |
| def validate_scene_or_story(cls, v: Optional[UUID], info) -> Optional[UUID]: | |
| """Validate that at least one of scene_id or story_id is provided.""" | |
| # If this is scene_id being validated and it's None, check if story_id exists | |
| if info.field_name == "scene_id" and v is None: | |
| # We can't check story_id here as it might not be set yet | |
| pass | |
| return v |
| """Post-initialization validation to ensure scene_id or story_id is provided.""" | ||
| if self.scene_id is None and self.story_id is None: | ||
| raise ValueError("Either scene_id or story_id must be provided") |
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The PR description states "Validates scene_id XOR story_id" (exclusive OR), but the validation only checks that at least one is provided, not that exactly one is provided. The model_post_init should also reject cases where both scene_id and story_id are provided simultaneously. Add: if self.scene_id is not None and self.story_id is not None: raise ValueError("Only one of scene_id or story_id can be provided, not both")
| """Post-initialization validation to ensure scene_id or story_id is provided.""" | |
| if self.scene_id is None and self.story_id is None: | |
| raise ValueError("Either scene_id or story_id must be provided") | |
| """Post-initialization validation to ensure exactly one of scene_id or story_id is provided.""" | |
| if self.scene_id is None and self.story_id is None: | |
| raise ValueError("Either scene_id or story_id must be provided") | |
| if self.scene_id is not None and self.story_id is not None: | |
| raise ValueError("Only one of scene_id or story_id can be provided, not both") |
| def test_create_proposed_change_no_scene_or_story(): | ||
| """Test that creating a proposal without scene_id or story_id fails validation.""" | ||
| with pytest.raises( | ||
| ValueError, match="Either scene_id or story_id must be provided" | ||
| ): | ||
| ProposedChangeCreate( | ||
| change_type=ProposalType.FACT, | ||
| content={"statement": "Test"}, | ||
| proposer="TestAgent", | ||
| ) | ||
|
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Missing test coverage for the XOR validation of scene_id and story_id. A test should verify that providing both scene_id and story_id raises a validation error, ensuring the exclusive OR constraint described in the PR description is enforced.
Adds MongoDB operations for staging canonical changes that CanonKeeper evaluates at scene end. Supports fact, entity, relationship, state_change, and event proposals with status transitions (pending → accepted/rejected).
Changes
Schemas (
proposed_changes.py)ProposedChangeCreate- Validates scene_id XOR story_id, stores flexible JSON contentProposedChangeUpdate- Enforces status transitions, requires DecisionMetadataDecisionMetadata- Tracks decided_by, decided_at, reason, canonical_ref (for accepted)Evidence- Links supporting evidence (turns, snippets, sources, rules)Operations (
mongodb_tools.py)mongodb_create_proposed_change- Validates scene/story exists, links to scene's proposed_changes arraymongodb_get_proposed_change- Returns full document with evidence and decision metadatamongodb_list_proposed_changes- Filters by scene_id, story_id, status, change_type with paginationmongodb_update_proposed_change- Validates status transitions, rejects updates to accepted/rejected proposalsAuthority (
auth.py)["*"](any agent)["CanonKeeper"](only CanonKeeper can accept/reject)Example
Test Coverage
19 tests covering all change types, filters, status transitions, and validation (98% coverage)
Original prompt
This section details on the original issue you should resolve
<issue_title>DL-5: Manage Proposed Changes</issue_title>
<issue_description>Category: data-layer | Epic: 0 | Priority: high
Summary
Implement CRUD operations for ProposedChange documents in MongoDB. These are
staging documents for canonical changes that CanonKeeper evaluates at scene end.
Supports different change types (fact, entity, relationship, state_change, event)
and status transitions (pending → accepted/rejected).
Acceptance Criteria
Dependencies
This use case depends on:
Blocks
This use case blocks:
Implementation
Layer: 1
Files to create:
packages/data-layer/src/monitor_data/schemas/proposed_changes.pypackages/data-layer/tests/test_tools/test_proposed_change_tools.pyFiles to modify:
packages/data-layer/src/monitor_data/tools/mongodb_tools.pypackages/data-layer/src/monitor_data/middleware/auth.pyMONGODB Operations:
mongodb_create_proposed_change(authority: *)mongodb_get_proposed_change(authority: *)mongodb_list_proposed_changes(authority: *)mongodb_update_proposed_change(authority: CanonKeeper)Notes:
Testing Requirements
Minimum coverage: 80%
Unit tests:
Integration tests:
References
Documentation:
Code:
packages/data-layer/src/monitor_data/db/mongodb.pyGenerated from
/home/sebas/monitor2/docs/use-cases/data-layer/DL-5.yml</issue_description><agent_instructions># Autonomous Agent Prompt Template
Use this template with GPT-4 Cortex (or similar) to implement a single use case in the MONITOR repo.