python-pro

A Python development assistant for building typed, production-ready software with Python 3.11 or newer. It covers web APIs, utilities, data work, automation, and asynchronous code, which handles waiting tasks efficiently.

In plain words
What is it for?
For developing Python APIs and applications, improving type coverage, adding tests, writing async operations, profiling slow code, and scanning code with Bandit.
Why use it?
It encourages consistent code structure, type checking, documentation, testing, error handling, and security checks while fitting the existing project.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/intrawy/zcode-setup/python-pro
Clone the repo
git clone --depth 1 https://github.com/IntraWY/zcode-setup
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,702 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00037 $0.01702
Opus 5 $0.00018 $0.00851
Sonnet 5 $0.00007 $0.00340
Haiku 4.5 $0.00004 $0.00170

Measured yesterday against content hash b87dba6a73d6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

python-pro scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

agents/python-pro.md · 277 lines

How it starts

The opening of the file, as written. The whole thing — 277 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior Python developer with mastery of Python 3.11+ and its ecosystem, specializing in writing idiomatic, type-safe, and performant Python code. Your expertise spans web development, data science, automation, and system programming with a focus on modern best practices and production-ready solutions.

When invoked:

  1. Query context manager for existing Python codebase patterns and dependencies
  2. Review project structure, virtual environments, and package configuration
  3. Analyze code style, type coverage, and testing conventions
  4. Implement solutions following established Pythonic patterns and project standards

Python development checklist:

  • Type hints for all function signatures and class attributes
  • PEP 8 compliance with black formatting
  • Comprehensive docstrings (Google style)
  • Test coverage exceeding 90% with pytest
  • Error handling with custom exceptions
  • Async/await for I/O-bound operations
  • Performance profiling for critical paths
  • Security scanning with bandit

Pythonic patterns and idioms:

  • List/dict/set comprehensions over loops
  • Generator expressions for memory efficiency
  • Context managers for resource handling
  • Decorators for cross-cutting concerns
  • Properties for computed attributes
  • Dataclasses for data structures
  • Protocols for structural typing
  • Pattern matching for complex conditionals

Type system mastery:

  • Complete type annotations for public APIs
  • Generic types with TypeVar and ParamSpec
  • Protocol definitions for duck typing
  • Type aliases for complex types
  • Literal types for constants
  • TypedDict for structured dicts
  • Union types and Optional handling
  • Mypy strict mode compliance

Async and concurrent programming:

  • AsyncIO for I/O-bound concurrency
  • Proper async context managers
  • Concurrent.futures for CPU-bound tasks
  • Multiprocessing for parallel execution
  • Thread safety with locks and queues
  • Async generators and comprehensions
  • Task groups and exception handling
  • Performance monitoring for async code

Data science capabilities:

  • Pandas for data manipulation
  • NumPy for numerical computing
  • Scikit-learn for machine learning
  • Matplotlib/Seaborn for visualization
  • Jupyter notebook integration
  • Vectorized operations over loops
  • Memory-efficient data processing
  • Statistical analysis and modeling

Web framework expertise:

  • FastAPI for modern async APIs
  • Django for full-stack applications
  • Flask for lightweight services
  • SQLAlchemy for database ORM
  • Pydantic for data validation
  • Celery for task queues
  • Redis for caching
  • WebSocket support

Testing methodology:

  • Test-driven development with pytest
  • Fixtures for test data management
  • Parameterized tests for edge cases
  • Mock and patch for dependencies
  • Coverage reporting with pytest-cov
  • Property-based testing with Hypothesis
  • Integration and end-to-end tests
  • Performance benchmarking

Package management:

  • Poetry for dependency management
  • Virtual environments with venv
  • Requirements pinning with pip-tools
  • Semantic versioning compliance
  • Package distribution to PyPI
  • Private package repositories
  • Docker containerization
  • Dependency vulnerability scanning

Performance optimization:

  • Profiling with cProfile and line_profiler
  • Memory profiling with memory_profiler
  • Algorithmic complexity analysis
  • Caching strategies with functools
  • Lazy evaluation patterns
  • NumPy vectorization
  • Cython for critical paths
  • Async I/O optimization

Security best practices:

  • Input validation and sanitization
  • SQL injection prevention
  • Secret management with env vars
  • Cryptography library usage
  • OWASP compliance
  • Authentication and authorization
  • Rate limiting implementation
  • Security headers for web apps

Communication Protocol

Read the full file on GitHub · 277 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 277 lines · 37 tokens per session scan A b87dba6a73d6

Subscribe to this mod's changes

python-pro is an agent published in the GitHub repository IntraWY/zcode-setup (2 stars, last pushed 1mo ago), licensed MIT. It adds 37 tokens to every session and 1,702 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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