FileCity

The fastest way to understand any codebase. Interactive. Visual. Narrated step by step. Part of @Principal_AI_

[FileCity @FileCityAI]

Garry Tan called seeing File City in motion catnip. We call it the Activity Feed, and yes, it's addictively satisfying.

Every commit. Who changed it. Where it changed. When it happened. Humans and agents, one glance. Live. Another view inside @Principal_AI_ Want to see what's happening across all your repos? https://t.co/VtaskVzxDE

[Garry Tan @garrytan]

For the polymath designer-coder, this is kind of like catnip https://t.co/4hNPvN7NPu

[FileCity @FileCityAI]

Great Job! @mitsuhiko @badlogicgames

[FileCity @FileCityAI]

FileCity Tour: pi

A comprehensive AI agent toolkit with interactive coding agent CLI, unified multi-provider LLM API, TUI/web UI libraries, and more.

https://t.co/w3jGCVGDeW

[FileCity @FileCityAI]

@indrazulfi Great Work! @indrazulfi
Here is a visual map + narrated walkthrough of lexa https://t.co/mKSMXYKkZH

[FileCity @FileCityAI]

FileCity Tour: lexa

A fast local code intelligence for humans and AI agents. Turns any codebase into a portable, queryable graph for stable context, symbols, searches, audits, and safe edits via CLI + MCP.

https://t.co/yeZcQQmtA5

[FileCity @FileCityAI]

Great Job! @indrazulfi

[FileCity @FileCityAI]

FileCity Tour: lexa

A fast local code intelligence for humans and AI agents. Turns any codebase into a portable, queryable graph for stable context, symbols, searches, audits, and safe edits via CLI + MCP.

https://t.co/yeZcQQmtA5

[FileCity @FileCityAI]

@yoheinakajima Yes, Thank you!

[FileCity @FileCityAI]

Great Job! @yoheinakajima

[FileCity @FileCityAI]

FileCity Tour: activegraph

An event-sourced reactive graph runtime for long-running agentic systems. Behaviors react to a shared graph instead of direct messaging; every change is traceable, runs are resumable, forkable, and diff-able via the event log.

https://t.co/gi7HjjXRup

[FileCity @FileCityAI]

@stainlu Great Work! @stainlu
Here is a visual map + narrated walkthrough of stainful https://t.co/RDEjquh0ti

[FileCity @FileCityAI]

FileCity Tour: stainful

An open-source Stainless alternative. Generate idiomatic, fully-typed Python SDKs from OpenAPI specs + stainless.yml configs. Runs locally with auto-pagination, retries, typed errors, streaming, sync/async — zero migration, no SaaS.

https://t.co/ofsMrgQEHj

[FileCity @FileCityAI]

Great Job! @stainlu

[FileCity @FileCityAI]

FileCity Tour: stainful

An open-source Stainless alternative. Generate idiomatic, fully-typed Python SDKs from OpenAPI specs + stainless.yml configs. Runs locally with auto-pagination, retries, typed errors, streaming, sync/async — zero migration, no SaaS.

https://t.co/ofsMrgQEHj

[FileCity @FileCityAI]

New ways to use file cities to build mental models of software ownership

[Fernando @Principal_ADE]

Working on visualizing what its like to work with code trails in a codebase

[FileCity @FileCityAI]

File City secured a sweet product placement in The Devil Wears Prada 2. Money well spent 😆

[FileCity @FileCityAI]

@vercel_dev Great Work! @rauchg @vercel_dev @vercel
Here is a visual map + narrated walkthrough of deepsec
https://t.co/WFZYFHiOMR

[FileCity @FileCityAI]

FileCity Tour: deepsec

An agent-powered vulnerability scanner from Vercel Labs. Runs in your infrastructure to find hard-to-spot security issues in large codebases using coding agents.

https://t.co/lCMVI9vF3R

[FileCity @FileCityAI]

Great Job! @rauchg @vercel_dev @vercel

[FileCity @FileCityAI]

FileCity Tour: deepsec

An agent-powered vulnerability scanner from Vercel Labs. Runs in your infrastructure to find hard-to-spot security issues in large codebases using coding agents.

https://t.co/lCMVI9vF3R

[FileCity @FileCityAI]

@1weiho Great Work! @1weiho
Here is a visual map + narrated walkthrough of open-slide https://t.co/rfY2oPiiVR

[FileCity @FileCityAI]

FileCity Tour: open-slide

A slide framework built for agents. Describe your deck in natural language and let coding agents generate full React slides on a fixed 1920×1080 canvas with navigation, present mode, inspector, and easy export.

https://t.co/TBHN86RgHR

[FileCity @FileCityAI]

Great Job! @1weiho

[FileCity @FileCityAI]

FileCity Tour: open-slide

A slide framework built for agents. Describe your deck in natural language and let coding agents generate full React slides on a fixed 1920×1080 canvas with navigation, present mode, inspector, and easy export.

https://t.co/TBHN86RgHR