Claude API Response: stop_reason, usage, and Content Blocks
September 30, 2026
Decode every Claude API response field: what each stop_reason value means, how to read usage token counters, and which content block types your code must handle.
Read →Plinth Blog
Deep-dives on CCA-F exam prep, study patterns that actually work, and behind-the-scenes posts on how Plinth's weak-spot drill engine works.
Claude Message Batches API: Async Bulk Processing for CCA-F
September 25, 2026
The Claude Message Batches API runs up to 100,000 requests asynchronously at 50% of standard pricing — the right surface when throughput beats latency for CCA-F and production workloads.
Read →Claude Streaming API: SSE Events, When to Use It, CCA-F
September 23, 2026
How the Claude streaming API delivers tokens over SSE, the six event types in sequence, when to stream vs. batch, and what the CCA-F exam tests.
Read →Claude Vision API: Images, PDFs, and Multimodal Inputs
September 20, 2026
How to send images, PDFs, and documents to the Claude API: accepted formats, base64-vs-URL, document blocks, token costs, and CCA-F exam concepts.
Read →Claude Agentic Safety: Minimal Footprint and When to Pause
September 9, 2026
Claude's agentic safety model — minimal footprint, reversible-first actions, and pause-and-verify triggers — explained for the CCA-F exam.
Read →Claude Hardcoded Behaviors: Limits No Operator Can Change
September 7, 2026
Claude's behaviors split into hardcoded limits no system prompt can override and softcoded defaults operators can adjust — here's the exact taxonomy the CCA-F exam tests.
Read →Claude Context Window: Token Limits and Management Strategies
August 31, 2026
Learn Claude's per-model context window limits, what counts toward the token budget, how to count tokens via the API, and which management strategy fits your use case.
Read →Anthropic Claude Prompt Caching: Cost Model and When It Pays Off
August 26, 2026
Anthropic Claude prompt caching cuts read costs 90% but adds a 25% write premium — master the break-even math and decision framework for the CCA-F exam.
Read →Model Context Protocol Registry: Server Discovery for CCA-F
August 24, 2026
Model context protocol registry explained: what MCP servers are, how server discovery works, and what the CCA-F exam expects you to know.
Read →Claude Operators vs Users: The Trust Hierarchy for CCA-F
August 21, 2026
How Claude's three-tier Anthropic–operator–user model works, what each party can permit or restrict, and what the CCA-F exam tests.
Read →Claude Extended Thinking: When to Use It and When to Skip It
August 19, 2026
Claude extended thinking gives the model a private reasoning chain that improves accuracy on hard tasks — here's the decision framework for enabling it without paying for it where it won't help.
Read →Anthropic Claude Certified Architect Foundations: CCA-F Exam Guide
August 17, 2026
A complete guide to the CCA-F exam: registration steps, question format, scoring, and what the Anthropic certification credential delivers after you pass.
Read →Claude Code Prompt Caching: What Gets Cached and Why for CCA-F
August 14, 2026
Claude Code prompt caching stores your system prompt server-side with a 5-minute TTL, cutting input costs by up to 90% — what the CCA-F exam tests.
Read →MCP Architecture Diagram: Host, Client and Server Explained for CCA-F
August 12, 2026
Master the MCP architecture diagram — host, client, and server roles plus both transports — to tackle MCP questions on the Anthropic CCA-F exam.
Read →Model Context Protocol Docs: CCA-F Exam Study Guide
August 10, 2026
The official Model Context Protocol documentation mapped section-by-section to CCA-F exam domains — know exactly what to read, skim, and skip.
Read →Claude Code Architecture Certification: What the CCA-F Tests
August 7, 2026
A knowledge map of Claude Code's agent loop, tool permissions, and MCP integration for the Claude Certified Architect exam.
Read →Anthropic Architect Certification: What Technical Skills Does It Test?
August 5, 2026
The Anthropic Architect Certification (CCA-F) tests technical depth across seven domains — here's the skill checklist candidates need for MCP, multi-agent orchestration, and responsible AI design.
Read →Claude API Model Guide: Choosing Haiku, Sonnet, or Opus
August 5, 2026
A practical guide to selecting the right claude api model — Haiku, Sonnet, or Opus — covering capability tradeoffs, API credit costs, model IDs in code, and CCA-F exam essentials.
Read →Claude Code API: Architecture, Models, and CCA-F Exam Guide
July 29, 2026
A technical explainer mapping the three layers of the Claude Code API — Anthropic REST API, CLI invocation surface, and Agent SDK — with CCA-F exam guidance.
Read →Claude Certified Architect Exam Domains and Their Weightings
July 27, 2026
The Claude Certified Architect exam splits across five weighted domains. Here is what each one covers and how to turn the weighting into a study plan.
Read →Claude API Prompt Caching: How cache_control Works
July 27, 2026
Prompt caching lets Claude reuse stable context across API requests — cutting input token costs by up to 90% when you structure your prompts correctly, using the cache_control parameter.
Read →Claude Certified Architect Exam: Study Path and Preparation
July 25, 2026
A practical study guide for the Claude Certified Architect — Foundations exam: what it tests, how long to prepare, and which skills to build first.
Read →Claude Agent SDK: Tool Loops, MCP, and Agentic Patterns
July 25, 2026
How the Claude Agent SDK structures agentic work: tool runner, Managed Agents, MCP integration, and the pause_turn behavior that trips up most builders.
Read →Claude Tool Use: How Function Calling Works
July 23, 2026
Claude tool use lets the model call your functions — define a tool with a JSON Schema, detect the tool_use stop reason, execute it, and loop until Claude is done.
Read →MCP with Claude: How Model Context Protocol Works
July 21, 2026
Model Context Protocol (MCP) lets Claude connect to external services like GitHub and Linear without embedding credentials in the agent definition. Here is how it works.
Read →Claude Certified Architect Exam: What It Covers and Is It Worth It?
July 21, 2026
What the Claude Certified Architect — Foundations exam tests, how hard it is, how long to study, and whether the CCA-F credential is worth pursuing.
Read →
Plinth Prep is an independent study resource and is not affiliated with, endorsed by, or sponsored by Anthropic.