Cookbook — Zero to Symphony

The adk-fluent cookbook is organized as a learning path, not a dictionary. Start with fundamentals, graduate to the fluent API, then see how modules orchestrate together in real-world “hero” workflows.

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The Learning Path

1. Fundamentals

Create agents, attach tools, register callbacks, execute with .ask(). The building blocks everything else depends on.

Recipes: 01-11

Cookbook

2. The Fluent Operators

Master >> (sequence), | (parallel), * (loop), @ (typed output), // (fallback), and Route (deterministic branching).

Recipes: 04-06, 16-20, 29-34

News Analysis Pipeline with Operator Composition: >>, |, *

3. Hero Workflows

The showcase. Real-world systems combining 5-7 modules in one pipeline. Deep research, customer support, code review, investment analysis.

7 hero recipes

Hero Workflows

4. Enterprise Patterns

Middleware, dependency injection, streaming, guards, contracts. Everything between “it works” and “it ships.”

Recipes: 15, 45-47, 60-67

Production Deployment – to_app() with Middleware Stack

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Hero Workflows — The Showcases

These 7 recipes demonstrate module interplay — how agents, operators, state transforms, context engineering, routing, guards, and middleware work together to solve real problems. Each follows a strict anatomy: the business problem, the fluent solution, and an interplay breakdown explaining why the modules were combined this way.

Hero Workflows

• Hero Workflows
• Deep Research Agent — Gemini Deep Research in 20 Lines
• Customer Support Triage — Multi-Tier Routing with Escalation
• Code Review Agent — Parallel Analysis with Structured Verdicts
• Investment Analysis Pipeline — Route, Loop, and Conditional Delivery
• E-Commerce Order Pipeline — Every Primitive in One System
• Multi-Tool Task Agent — Tools, Guards, and Dependency Injection
• Dispatch & Join — Fire-and-Continue Background Execution

At a Glance

Hero Workflow	Real-World Problem	Modules in Play
Deep Research Agent	Multi-source research with quality loop	>>, |, * until, @, S.*, C.*
Customer Support Triage	Ticket routing with escalation	S.capture, C.none, Route, gate
Code Review Agent	Parallel analysis with structured verdicts	>>, |, @, tap, proceed_if
Investment Pipeline	Asset-class routing with quality review	Route, |, >>, loop_until, Preset
E-Commerce Orders	Order routing with fraud detection	tap, expect, gate, Route, S.*
Multi-Tool Agent	Tools with DI and safety guards	.tool(), .guard(), .inject()
Dispatch & Join	Fire-and-continue background tasks	dispatch, join, callbacks

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Skills & Harness Pathways

These recipes demonstrate adk-fluent’s three development pathways beyond the core Pipeline path. Skills turn YAML into agent graphs; harnesses build autonomous coding runtimes.

Skill-Based Agents

11 patterns: load, compose, inject, discover, and introspect skills from SKILL.md files.

Pathway: Skills

Skill-Based Agents – Composable Skills from SKILL.md Files

Skill-Powered Harness

8 patterns combining skill expertise with sandboxed workspace tools, permissions, and context.

Pathway: Skills + Harness

Skill-Powered Harness – Building a CodAct Coding Agent

Production Coding Agent

27-test proof: a Claude-Code-class autonomous runtime built from 5 composable layers.

Pathway: Harness

Gemini CLI / Claude Code Clone – Production Coding Agent Harness

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All Recipes

For the complete flat listing of all recipes with side-by-side native ADK comparisons, see the auto-generated cookbook.

For recipes organized by use case (support, e-commerce, research, etc.), see Recipes by Use Case.