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CalPy @ Prompt Driven Launch Party presented by Toolhouse

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Hosted By
WP H. and Robert E.
CalPy @ Prompt Driven Launch Party presented by Toolhouse

Details

RSVP here:
https://lu.ma/arq0umjr

This month's meeting will be in person at the launch party for last month's presentation on "Prompt Driven Development". We'll stream to Zoom as best we can.

PDD Launch event:
Ever feel like using Claude Code or Cursor is similar to throwing a grenade in the codebase? You are never sure what will be added, deleted or duplicated. As the codebase grows, the agentic coder starts adding more bugs than it fixes?

Prompt-Driven Development (PDD) replaces the traditional patch-and-maintain model with a regenerative approach that keeps software clean, consistent, and easy to evolve. Instead of repeatedly editing tangled code, PDD treats the natural-language prompt as the single source of truth.

​The PDD CLI sync loop injects dependencies, generates multi-language code, writes unit tests, fixes crashes, and updates the prompt in one run. Changes are made at the high-level prompt, and the system regenerates fresh code, avoiding the accumulation of technical debt and reducing long-term maintenance effort.

​PDD delivers higher reliability, lower costs, and less active developer time by freeing engineers from constant AI supervision. Developers can work in cloud mode with GitHub SSO and high-end models or locally with their own keys, making it suitable for everything from rapid prototypes to enterprise-grade systems with predictable speed, quality, and scalability.

Website - https://promptdriven.ai/
PyPI - https://pypi.org/project/pdd-cli/
​Partners

Groq - The Infrastructure For Inference https://groq.com/
Groq will be giving every attendee $20 Groq credit on Prompt Driven.
[Toolhouse.ai](http://toolhouse.ai/) - Toolhouse allows everyone to vibe code agents with superpowers. Type what your agent should do in your own words: Toolhouse creates a bulletproof agent pre-loaded with scrapers, web search, MCP servers, RAG, and more. Toolhouse publishes and hosts agents for you, so they will work when you close your laptop. Toolhouse is trusted by over 5,000 users, including vibe coders and engineers from large companies like Cloudflare, Snowflake, Qualcomm, and NVIDIA.

​Agenda
6 pm Arrival and open networking
6:30 pm Live demos
• PDD legacy-to-cloud migration powered by Kimi-K2 on Groq hardware
• Toolhouse Agent Studio: YAML spec → running agent
7:30 pm Second networking block
The room is booked until 9 pm; feel free to stay late.

​When and where
​Thursday 4 September 2025, 6 pm – 8 pm
500 Global HQ, 400 Hamilton Ave, Suite 130, Palo Alto, CA
​Pizza plus limited-edition PDD × Toolhouse tees and stickers. Groq credit. Seats are capped; register early.

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California Online Python Usergroup
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This is a hybrid event.

Every 1st Thursday of the month until March 2, 2028

In Person
500 Global HQ
400 Hamilton Ave · Palo Alto, CA
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FREE