everysoftware/design-patterns

This system is a Python-based library that provides implementations of various design patterns, including structural, behavioral, and creational categories. It also includes concurrency examples and patterns, such as asyncio and threading, along with enterprise and infrastructure components. The codebase is supported by comprehensive tests and updated dependencies, ensuring robustness and maintainability.

Added new Python modules in the concurrency section: example scripts demonstrating asyncio, threading, multiprocessing, and GIL behavior; implementation files for concurrency patterns including a custom Event Loop, Task, and Future classes; and issue demonstration scripts for race conditions, deadlocks, overconsumption, and starvation. The changes also include renaming and moving existing architectural pattern files (CQRS, DI, events, gateway) into the new concurrency directory structure.

src/concurrency · high confidence

The codebase now includes a new \src/structural\ package containing implementations of various structural design patterns, including Adapter, Bridge, Composite, Decorator, Delegate, Facade, Flyweight, Proxy, and others. This adds new capabilities for organizing classes and objects into larger structures, such as decoupling abstractions from implementations, composing objects into tree structures, and providing simplified interfaces to complex systems.

src, src/principles, src/structural, src/behavioral, src/enterprise · high confidence

The repository has removed a significant number of pattern implementation files, including architectural patterns (registry, repository, retry, saga, session, uow), behavioral patterns (observer, visitor), creational patterns (singleton), and structural patterns (adapter, facade, proxy). This cleanup eliminates unused or deprecated code from the patterns directory.

patterns · high confidence

The creational design pattern implementations have been reorganized from the 'patterns' directory into the 'src/creational' package. This includes the addition of new modules for Dependency Injection (di.py) and Singleton (singleton.py), alongside the migration of existing patterns such as Builder, Factories, Monostate, Multiton, Pool, and Prototype. Internal imports have been updated to reflect the new package structure, and docstrings have been reorganized to improve documentation clarity.

src/creational · high confidence

Added new test files covering behavioral, structural, creational, and concurrency patterns, as well as enterprise and infrastructure components. The tests validate the correct implementation of patterns such as Command, Interpreter, Iterator, State, Strategy, Template Method, and Decorator, alongside unit tests for the Unit of Work, Repository, and Specification patterns. Additionally, tests were added for client-server communication, reverse proxy logging, and dependency injection.

tests · high confidence

The project's dependency lock file (poetry.lock) was updated to include several new packages: certifi (2024.12.14), cfgv (3.4.0), charset-normalizer (3.4.1), distlib (0.3.9), filelock (3.17.0), identify (2.6.6), and idna (3.10). Additionally, the pyproject.toml was modified to rename the project from 'patterns' to 'src', add the 'requests' dependency, and include 'mypy' and 'pre-commit' as dev dependencies, alongside new ruff and mypy configuration sections.

(dependencies) · high confidence

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

• CAI 62 → 72 (+9.8)
• Rubric changed (rubric-2026.08.19 → rubric-2026.09.15) — scores are not directly comparable.

• Code Health 100 → 100 (+0.0)
• Architecture 100 → 98 (-1.8)
• Maturity 62 → 62 (+0.0)
• Readiness 48 → 65 (+17.5)
• Security 75 → 92 (+16.6)

• Coverage not included — suite not readable by the collector
• Dependency hygiene not measured — dependency manifest found but not parsed for hygiene
• High CVE: [GHSA redacted] (poetry.lock)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium CVE: [GHSA redacted] (poetry.lock)
• No exposed public API
• Test reliability not included
• The Value Object section lists properties but does not explain when a value object is appropriate versus an aggregate or data mapper. (enterprise/README.md)
• early-stage repository — too little history to judge knowledge freshness
• single-maintainer — knowledge-concentration (bus factor) risk

• CODEOWNERS assigns no owner to any path
• Dependency hygiene PARTLY measured — Python dependencies read, no exact pin to grade for currency
• Documentation: no installation or build instructions (README.md)
• High CVE: [GHSA redacted] (poetry.lock)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium CVE: [GHSA redacted] (poetry.lock)
• Medium: security finding (details withheld)
• Medium: security finding (details withheld)
• No dependency advisory monitoring
• PR-triggered workflow without a permissions block

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

everysoftware/design-patterns was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point a surveyor at a repository you know and see whether you agree with it.