Talking about Skills, Optimizing Prompts and building MCP servers in apps

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vector-recommendations.md

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podcast-github-pages.md

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export-sqlite.md

function-invoking.md

html-web-components.md

print-multiple-objects.md

lit

codemirror-dynamic-theme.md

draggable-dom.md

figma-interop.md

making-a-piano.md

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vscode-extension.md

podcast

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building-the-flutter-widget-maker-and-storyboard.md

flutter-adaptive-ui-and-web-assembly.md

flutter-desktopweb-and-vr.md

flutter-state-management-and-dart-nullability-feat-simon-lightfoot.md

flutter-testing-and-appstore-rejection.md

pro-putt-by-top-golf-feat-jason-clevering.md

talking-about-riverpod-with-remi-rousselet.md

tech-walks

building-a-dnd-agent-with-adk-antigravity-and-gemini-3.md

building-with-antigravity-gemini-cli-and-stitch.md

talking-about-skills-optimizing-prompts-and-building-mcp-servers-in-apps.md

recipes

the-perfect-brisket.md

sqlite

travel

narobi-national-park.md

videos

ai

gemma-now-available-in-kerasnlp-collection-signal-input-in-developer-preview-and-more-dev-news.md

google-computer-use-model-gemini-cli-extensions-and-more-google-developer-news-october-2025.md

how-to-automate-pr-summaries-with-opal-ai.md

how-to-connect-interfaces-to-the-cloud-with-ai-agents.md

leverage-gemini-in-your-android-apps-global-gamer-challenge-and-more-dev-news.md

offline-vector-search-with-sqlite-and-embeddinggemma.md

the-gemini-cookbook-popover-api-lands-in-baseline-and-more-dev-news.md

antigravity

flutter-antigravity-observable-flutter-76.md

how-to-build-with-flutter-and-google-antigravity.md

intro-to-agent-skills.md

dev-show

announcing-tensorstore-chrome-root-program-and-more-dev-news.md

blockchain-based-experiences-govulncheck-v100-and-more-dev-news.md

compression-streams-support-on-all-browsers-androids-new-credential-manager-and-more-dev-news.md

connect-google-services-to-bard-flutters-consulting-directory-and-more-developer-news.md

dataset-search-wear-os-updates-and-more-dev-news.md

jetpack-watch-face-library-datastream-is-ga-bazel-con-recap-and-more-dev-news.md

new-to-the-web-try-out-android-predictive-back-gestures-and-more-dev-news.md

privacy-sandbox-demos-pixel-devices-and-more-dev-news.md

scaling-vision-transformers-compose-pager-and-more-dev-news.md

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build-full-stack-ai-apps-in-minutes-with-firebase-studio.md

building-ai-powered-experiences-with-firebase-studio-and-firebase-platform-rody-davis.md

building-firebase-studio-rules-for-angular-live.md

compile-sqlite-from-source-to-wasm-in-firebase-studio.md

explore-all-the-official-templates-for-firebase-studio.md

firebase-after-hours-14-live-vibe-coding-with-firebase-studio.md

firebase-studio-now-supports-gemma-3-image-inputs-on-the-gemini-developer-api-.md

from-prototype-to-ide-in-firebase-studio.md

how-firebase-studio-accelerates-development.md

import-existing-projects-into-firebase-studio.md

introducing-firebase-studio.md

start-prototyping-with-firebase-studio.md

flutter

create-simple-beautiful-ui-with-flutter.md

flutter-as-a-service-webinar.md

flutter-plugin-live-coding-native-color-picker.md

idx-flutter-by-rody-davis-senior-developer-advocate-google.md

introducing-the-signals_hooks-package-for-flutter-hooks-and-signals.md

material-3-from-design-to-deployment.md

material-you-applying-dynamic-color-to-your-app-and-brand.md

rody-davis-building-adaptive-uiux-in-flutter.md

interviews

60-flutter-with-rody-davis.md

chat-with-lit-1-westbrook-johnson-adobe.md

chatting-with-a-googler-rodydavis-google-flutter-firebase-developers-ai-vibecoding.md

interview-with-rody-davis-firebase.md

speaker-interview-rody-davis-david-khourshid-and-joo-luiz-s-kestering.md

take-5

adaptive-dialogs-flutter.md

internationalization-flutter.md

master-detail-scaffold-flutter.md

responsive-design-flutter.md

shared-preferences-flutter.md

your-first-flutter-project.md

talks

5-things-you-can-do-to-prepare-your-app-for-large-screens-session.md

design-at-scale-with-web-components-and-ducks.md

findevs-flutter-hackathon-2019-orlando-winner.md

google-cloud-next-2022-dart-partnership-with-github-and-more-dev-news.md

google-io-2023-passkeys-passwordless-future-and-more-dev-news.md

material-you-figma-bringing-dynamic-color-brand-together-rody-davis-ivy-knight-schema-2021.md

moving-an-angular-app-to-flutter-web-devfest-fl-2019.md

road-to-flutter-city-rody-davis.md

space-apps-orlando-2019-space-curiosity.md

women-in-machine-learning-symposium-flutter-forward-more-dev-news.md

web

file-based-routing.md

html-code-sandbox.md

preact-signals.md

snippets

color-utilities.md

m3-to-m2-adapter.md

Outline

Talking about Skills, Optimizing Prompts and building MCP servers in apps

Related

How to connect interfaces to the cloud with AI agents Flutter Adaptive UI and Web Assembly Building AI Powered Experiences with Firebase Studio and Firebase Platform - Rody Davis Building AI Powered Experiences with Firebase Studio and Firebase Platform - Rody Davis Flutter & Antigravity | Observable Flutter #76 Flutter Testing and AppStore Rejection

Tags

flutter firebase antigravity gemini ai video youtube web talk google

podcast › tech-walks › talking-about-skills-optimizing-prompts-and-building-mcp-servers-in-apps.md

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# Talking about Skills, Optimizing Prompts and building MCP servers in apps

<div class="video-container">
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</div>

## Description

We’re diving deep into the latest paradigms in AI development, starting with the difference between traditional context files (Gemini.md) and the new "Agent Skills" dynamic.

We also share a story about using the Vertex AI Prompt Optimizer to automate our YouTube descriptions. It took 5 hours and nearly 100 million tokens, but the results were surprisingly consistent. Finally, we geek out on the Model Context Protocol (MCP), experimenting with exposing Flutter application state as local tools using Unix sockets.

In this episode:

0:00 - Intro: Why we are sitting today.
0:30 - What are Agent Skills? (Anthropic & Antigravity support) .
1:49 - Skills vs. Context: The difference between lazy loading and concatenating context files.
4:59 - How the API discovers and uses Skills.
7:25 - The open ecosystem for sharing and installing Skills.
10:30 - Deep Dive: Using Vertex AI Prompt Optimizer for YouTube descriptions.
13:28 - Converting CSVs to JSONL for data-driven optimization.
15:25 - The 100 Million Token experiment.
19:20 - Exploring MCP (Model Context Protocol) with Flutter.
22:03 - Using Unix Sockets vs. HTTP for local app control.
24:25 - Implementing the MCP spec in Antigravity.

Resources mentioned:

Open Skills Domain: https://agentskills.io/

Vertex AI Prompt Optimizer (Colab Notebooks): https://cloud.google.com/blog/products/ai-machine-learning/announcing-vertex-ai-prompt-optimizer

Boost accuracy with the prompt optimizer blog: https://firebase.blog/posts/2026/01/boost-accuracy-with-the-prompt-optimizer

Connect with us: Let us know what you want us to talk about next! 

#AI #Gemini #AgentSkills #MCP #Flutter #VertexAI #PromptEngineering #TechPodcast

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