Overview
free

Diagram Templates by Step
Mapping Concepts to Real-World Toolchains
Readiness Checklists
Glossary

Course Setup and the Incremental Ladder
Why "Tasks to Toolchains"
How to Use This Course
The Incremental Ladder (Step 0 -> Step 7)
The Course Lenses
Diagram Legend and Notation Types

What Is a Developer Toolchain?
Toolchain Inventory
Inner Loop vs Outer Loop
Composition, Not Monoliths

Core Developer Tasks
Reading and Understanding Code
Editing and Refactoring
Running, Debugging, Profiling, Testing

The IDE as a System of Models
Core Models
Workspaces and Environments
Keeping Models in Sync

UX Principles for Developer Tools
Latency, Feedback, Predictability
Discoverability vs Power
Interaction Ergonomics

Diagramming Developer Tools & IDEs
Code-to-UI Dataflow
Runtime/Instrumentation Flows
Toolchain Graphs

Text Editing Foundations
Buffers, Positions, and Edits
Undo/Redo and History
Incremental Edits and Diffing

Lexing, Parsing, and Syntax Trees
Tokens, Grammars, Trees
Error-Tolerant Parsing
Incremental Parsing

Syntax Highlighting and Structural Editing
Highlighting Strategies
Formatting and Style Policies
Code-Aware Editing Gestures

Project Models and Workspace Layouts
Projects, Modules, Packages
Workspace Models
Polyglot Workspaces

Indexing and Symbol Tables
What to Index
Fast Lookup Structures
Staying Correct Under Change

Minimal Smart Editor
Baseline Capabilities
Project View and Navigation
The Step-0 Product Line

Code Navigation Primitives
Jump-to Semantics
Relationship Queries
Symbol Search

Cross-File and Cross-Language Navigation
Navigating Across Modules
Linking Across Stacks
Generated and Polyglot Code

Refactoring as Safe Code Transformation
Core Refactors
Structural Moves
Preconditions and Previews

Search, Replace, and Structural Search
Text vs Semantic Search
Regex vs Structure
Scoped Search

Code Navigation UX
Interaction Surfaces
Orientation Aids
Power Without Cognitive Tax

Designing a Navigation & Refactoring Subsystem
Data Structures and Indices
Change Propagation
Testing Refactors

Debugging Mental Model
Execution State
Stepping and Inspection
Local vs Remote Debugging

Debug Adapters and Protocols
Decoupling UX from Runtime
Capabilities and Messages
Attach and Spawn Flows

Breakpoints and Conditions
Breakpoint Types
Conditional Breaks and Logpoints
Managing Sets

Inspecting State
Object Graphs
Snapshots and Memory Views
Safety and Limits

Profiling Integrations
Profiling Surfaces
Visualizations
Source Linking

Test Runners and Diagnostics
Integrated Test Workflows
Result UX
Capturing Evidence

Designing Runtime Tooling as a System
Unified Tooling UX
Session Lifecycle Design
Remote and Container Targets

Language Servers as “Brains”
LSP-Style Responsibilities
Interaction Model
Separation of Concerns

Capabilities and Features from Language Servers
Diagnostics and Quick Fixes
Completion and Signatures
Symbols, References, Code Actions

Plugin and Extension Architectures
Extension Points
Security and Sandboxing
Versioning and Compatibility

Composing Multiple Extensions
Conflict and Priority
Shared Services
Isolation and Failure Handling

Polyglot and Multi-Project Workspaces
Many Language Servers, One Workspace
Cross-Language Features
Configuration Surfaces

Ecosystems and Marketplaces
Discoverability
Quality Signals
Lifecycle Management

Build Systems and Project Configs
Build Model Taxonomy
Targets, Modes, Profiles
Source to Output Mapping

Run Configurations and Profiles
Run Targets
Parameters and Environment
Profile Switching

Toolchains and SDK Management
Toolchain Inventory
Version Switching
Missing Tool UX

Environments: Local, Container, and Cloud
Local Dependency Reality
Container Dev Models
Remote/Cloud Builds and Runs

Integrating Build, Run, and Debug UX
Unified Workflows
Consistent Error Surfaces
Fast Iteration Loops

Build and Execution Observability
Logs and Structured Diagnostics
Caching and Incrementality
Metrics for Roadmapping

Collaboration Personas and Workflows
Collaboration Modes
Sync vs Async
VCS and Review as First-Class

Live Sharing and Co-Editing
Presence and Shared State
Roles and Permissions
Privacy and Data Boundaries

Code Review Integrations
Diffs Inside the IDE
Comments and Suggestions
Linking to Work Systems

Remote Development Models
Local IDE + Remote Target
Cloud IDE Instances
Latency and Offline Strategy

Dev Environments as Templates
Template Value
Scoping Templates
Ephemeral vs Persistent

Collaboration UX and Social Features
Awareness Features
In-Context Annotations
Notification Discipline

AI as a New Primitive in Dev Tools
Capability Set
Context as Fuel
AI Roles

Integrating AI with Editing
Inline Assistance
Block-Level Transforms
Chat Tied to Code

AI and Code Navigation
Semantic Code Search
Pattern Queries
Assisted Understanding

AI-Assisted Refactoring and Fixes
Fix Suggestions from Diagnostics
Guided Refactors
Diffability as a Requirement

Tool-Oriented AI Workflows
Tools as Interfaces
Multi-Step Orchestration
Auditability and Replay

Trust, Safety, and Data Boundaries
Context Boundaries
Guardrails
Verification UX

IDE Platforms as Products
User Segments
Multi-Surface Experiences
Product Metrics

Toolchain Orchestration and Integration
Connecting the Stack
One-Click vs Composable
Unified Configuration

Multi-Language and Multi-Environment IDEs
Polyglot Monorepos
Defaults and Overrides
Hybrid Dev Setups

Extensibility, Governance, and Ecosystems
Ecosystem Postures
Governance Models
Versioning and Migrations

Observability and Reliability for Dev Tools
Tool Telemetry
Usage -> Roadmap
Diagnosing Failures

Reference Architectures and Maturity Models
Basic Toolchain
Intermediate Toolchain
Advanced Platform

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