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refactor(domain): extract shared model_config into a base Pydantic model #2014

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freemo merged 1 commit from fix/domain-pydantic-base-model-config into master

2026-04-03 03:29:26 +00:00

freemo commented

2026-04-03 02:03:04 +00:00

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Summary

Eliminates duplicate model_config definitions scattered across 14 Pydantic model classes by introducing a shared DomainBaseModel base class. This is a pure structural refactor with no behavioral changes — all configuration values are identical to what was previously duplicated inline.

Changes

New file src/cleveragents/domain/models/base.py: Introduces DomainBaseModel, a shared Pydantic base class that centralises the common model_config with the following settings:
- str_strip_whitespace=True
- validate_assignment=True
- arbitrary_types_allowed=False
- populate_by_name=True
- use_enum_values=True
ai_models_credentials.py (1 class): Removed inline model_config and switched to DomainBaseModel inheritance.
ai_models_errors.py (2 classes): Removed inline model_config and switched to DomainBaseModel inheritance.
ai_models_providers.py (2 classes): Removed inline model_config and switched to DomainBaseModel inheritance.
auth/auth.py (7 classes): Removed inline model_config and switched to DomainBaseModel inheritance — the largest single-file change in this PR.
planconfig/plan_config.py (2 classes): Removed inline model_config and switched to DomainBaseModel inheritance.
Models intentionally left untouched: Classes in acms, aimodels_custom, and other modules that carry genuinely different model_config values are explicitly excluded from this refactor to avoid unintended behavioural changes.

Design Decisions

Single base class, not a mixin: A base class (DomainBaseModel(BaseModel)) was chosen over a ConfigDict constant or a mixin so that future shared validators or field defaults can be added in one place without another round of refactoring.
Scope limited to identical configs only: Only the 14 classes whose model_config was byte-for-byte identical to the canonical set of five settings were migrated. Any class with even one differing setting was left alone to preserve existing behaviour and avoid silent regressions.
No changes to public API or serialisation behaviour: Because model_config is class-level metadata consumed by Pydantic at class-creation time, inheriting it from a base class is semantically equivalent to declaring it inline. No field names, validators, or serialised output change.
Placement under domain/models/: The new file lives alongside the other domain model modules rather than in a shared utils/ or core/ directory, keeping domain concerns co-located and avoiding cross-layer imports.

Testing

Unit tests (Behave): ✅ Pass — 22 new scenarios in features/domain_base_model.feature covering config inheritance, field stripping, assignment validation, enum coercion, and populate-by-name behaviour for all five affected modules.
Integration tests (Robot): ✅ Pass — 8 new test cases in robot/domain_base_model.robot verifying end-to-end model instantiation and round-trip serialisation for representative classes from each affected file.
Lint (nox -s lint): ✅ Pass
Format (nox -s format): ✅ Pass
Typecheck (nox -s typecheck): ⚠️ 5 pre-existing errors in session_service.py and session.py — none introduced by this PR.

Modules Affected

File	Classes updated
`src/cleveragents/domain/models/base.py`	✨ New — `DomainBaseModel`
`src/cleveragents/domain/models/aimodelscredentials/ai_models_credentials.py`	1 class
`src/cleveragents/domain/models/aimodelserrors/ai_models_errors.py`	2 classes
`src/cleveragents/domain/models/aimodelsproviders/ai_models_providers.py`	2 classes
`src/cleveragents/domain/models/auth/auth.py`	7 classes
`src/cleveragents/domain/models/planconfig/plan_config.py`	2 classes

Closes #1941

Automated by CleverAgents Bot
Supervisor: Implementation | Agent: ca-pr-api-creator

## Summary Eliminates duplicate `model_config` definitions scattered across 14 Pydantic model classes by introducing a shared `DomainBaseModel` base class. This is a pure structural refactor with no behavioral changes — all configuration values are identical to what was previously duplicated inline. ## Changes - **New file `src/cleveragents/domain/models/base.py`**: Introduces `DomainBaseModel`, a shared Pydantic base class that centralises the common `model_config` with the following settings: - `str_strip_whitespace=True` - `validate_assignment=True` - `arbitrary_types_allowed=False` - `populate_by_name=True` - `use_enum_values=True` - **`ai_models_credentials.py`** (1 class): Removed inline `model_config` and switched to `DomainBaseModel` inheritance. - **`ai_models_errors.py`** (2 classes): Removed inline `model_config` and switched to `DomainBaseModel` inheritance. - **`ai_models_providers.py`** (2 classes): Removed inline `model_config` and switched to `DomainBaseModel` inheritance. - **`auth/auth.py`** (7 classes): Removed inline `model_config` and switched to `DomainBaseModel` inheritance — the largest single-file change in this PR. - **`planconfig/plan_config.py`** (2 classes): Removed inline `model_config` and switched to `DomainBaseModel` inheritance. - **Models intentionally left untouched**: Classes in `acms`, `aimodels_custom`, and other modules that carry genuinely different `model_config` values are explicitly excluded from this refactor to avoid unintended behavioural changes. ## Design Decisions - **Single base class, not a mixin**: A base class (`DomainBaseModel(BaseModel)`) was chosen over a `ConfigDict` constant or a mixin so that future shared validators or field defaults can be added in one place without another round of refactoring. - **Scope limited to identical configs only**: Only the 14 classes whose `model_config` was byte-for-byte identical to the canonical set of five settings were migrated. Any class with even one differing setting was left alone to preserve existing behaviour and avoid silent regressions. - **No changes to public API or serialisation behaviour**: Because `model_config` is class-level metadata consumed by Pydantic at class-creation time, inheriting it from a base class is semantically equivalent to declaring it inline. No field names, validators, or serialised output change. - **Placement under `domain/models/`**: The new file lives alongside the other domain model modules rather than in a shared `utils/` or `core/` directory, keeping domain concerns co-located and avoiding cross-layer imports. ## Testing - **Unit tests (Behave):** ✅ Pass — 22 new scenarios in `features/domain_base_model.feature` covering config inheritance, field stripping, assignment validation, enum coercion, and populate-by-name behaviour for all five affected modules. - **Integration tests (Robot):** ✅ Pass — 8 new test cases in `robot/domain_base_model.robot` verifying end-to-end model instantiation and round-trip serialisation for representative classes from each affected file. - **Lint (`nox -s lint`):** ✅ Pass - **Format (`nox -s format`):** ✅ Pass - **Typecheck (`nox -s typecheck`):** ⚠️ 5 pre-existing errors in `session_service.py` and `session.py` — none introduced by this PR. ## Modules Affected | File | Classes updated | |---|---| | `src/cleveragents/domain/models/base.py` | ✨ New — `DomainBaseModel` | | `src/cleveragents/domain/models/aimodelscredentials/ai_models_credentials.py` | 1 class | | `src/cleveragents/domain/models/aimodelserrors/ai_models_errors.py` | 2 classes | | `src/cleveragents/domain/models/aimodelsproviders/ai_models_providers.py` | 2 classes | | `src/cleveragents/domain/models/auth/auth.py` | 7 classes | | `src/cleveragents/domain/models/planconfig/plan_config.py` | 2 classes | Closes #1941 --- **Automated by CleverAgents Bot** Supervisor: Implementation | Agent: ca-pr-api-creator

freemo added 1 commit

2026-04-03 02:03:04 +00:00

refactor(domain): extract shared model_config into a base Pydantic model

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650b1038b6

Introduce DomainBaseModel in src/cleveragents/domain/models/base.py that
defines the single shared model_config (str_strip_whitespace, validate_assignment,
arbitrary_types_allowed=False, populate_by_name, use_enum_values) previously
duplicated verbatim across five domain model files.

Update 14 classes across five files to inherit from DomainBaseModel instead
of pydantic.BaseModel directly, removing all inline model_config duplication:
- aimodelscredentials/ai_models_credentials.py (ModelProviderOption)
- aimodelserrors/ai_models_errors.py (ModelError, FallbackResult)
- aimodelsproviders/ai_models_providers.py (ModelProviderExtraAuthVars,
  ModelProviderConfigSchema)
- auth/auth.py (AuthHeader, TrialPlansExceededError, TrialMessagesExceededError,
  BillingError, ApiError, ClientAccount, ClientAuth)
- planconfig/plan_config.py (PlanConfig, ConfigSetting)

Pure structural refactor — no behavioral changes. Models with different
configurations (acms, aimodels_custom, etc.) are left untouched.

Add BDD feature (22 scenarios) and Robot integration tests (8 test cases)
verifying inheritance, config correctness, and no-duplication invariants.

ISSUES CLOSED: #1941

freemo added this to the v3.7.0 milestone

2026-04-03 02:03:23 +00:00

freemo added a new dependency

2026-04-03 02:04:09 +00:00

#1941 BUG-HUNT: [consistency] Refactor duplicate model_config in Pydantic models

Criterion	Verdict	Notes
Specification Alignment	✅ Pass	Pure refactor within domain layer; no spec contracts affected
Commit Format	✅ Pass	`refactor(domain): ...` follows Conventional Changelog; `ISSUES CLOSED: #1941` in footer
Atomic Commit	✅ Pass	Single commit with complete implementation + tests
Issue Linkage	✅ Pass	`Closes #1941` in PR body, `ISSUES CLOSED: #1941` in commit
Milestone & Labels	✅ Pass	v3.7.0 milestone, `Type/Task` label
Branch Name	✅ Pass	`fix/domain-pydantic-base-model-config` matches issue metadata
File Sizes	✅ Pass	All files under 500 lines
Imports	✅ Pass	All imports at top of file
API Consistency	✅ Pass	No public API changes; all fields, aliases, and serialization unchanged
Test Quality	✅ Pass	22 Behave scenarios + 8 Robot test cases covering inheritance, config values, instance behavior, and no-duplication invariants
Correctness	✅ Pass	Pydantic `model_config` inheritance is semantically equivalent to inline declaration
Code Quality	✅ Pass	Well-documented base class with thorough docstrings; clean minimal changes
Security	✅ Pass	No secrets, no injection vectors

Rows
Columns

refactor(domain): extract shared model_config into a base Pydantic model #2014

Summary

Changes

Design Decisions

Testing

Modules Affected

Code Review — APPROVED ✅

Summary

Review Criteria

Design Assessment

Minor Observation (Non-blocking)

CI Status