Agentic RAG replaces the standard “retrieve-then-generate” pattern. The LLM gets tool-use powers to decide when to retrieve, which sources to query, how to rewrite queries, and whether the result is enough. Instead of fetching docs on every query, the model acts as an orchestrator. It runs targeted searches across vector stores, SQL databases, and web sources, then checks its own answers. This pattern lifts answer accuracy by 15-25% on multi-hop benchmarks and cuts wasted retrieval calls by about 35%.

Claude Code doesn’t use MCP as a plugin system. It is MCP. On March 31, 2026, Anthropic shipped a 59.8 MB source map by accident in npm package @anthropic-ai/claude-code v2.1.88. Developers got a rare look at how a real AI coding agent works. Every capability in Claude Code (file reads, bash, web fetches, Computer Use, IDE bridges) runs as a single permission-gated MCP tool call. There is no special internal API. Third-party MCP servers you connect get the same execution path, permission checks, and error handling as Anthropic’s own built-in tools.

Florence-2 and Qwen2-VL both run on consumer NVIDIA GPUs starting at 8 GB VRAM and handle OCR, object detection, image captioning, and visual question answering entirely offline. Florence-2 uses a compact sequence-to-sequence architecture with task-specific prompt tokens, which makes it fast and reliable for structured extraction work. Qwen2-VL takes a conversational approach and handles open-ended reasoning, complex documents, and follow-up questions - making the two models complementary rather than interchangeable.

One missing line in a build config caused the worst source leak in AI tooling history. On March 31, 2026, Anthropic shipped version 2.1.88 of its @anthropic-ai/claude-code package with a 59.8 MB JavaScript source map inside. That map held the full client agent harness for Claude Code : 512,000 lines of readable TypeScript in 1,906 files. Mirrors of the code spread thousands of times in hours. A clean-room Python/Rust rewrite then became the fastest-growing repo in GitHub history. Anthropic’s legal response hit the wrong targets. The day got worse: a supply-chain attack hit the axios npm package, piling on for devs who rely on these tools.

Claude Code combined with custom MCP (Model Context Protocol) servers creates a local AI coding agent that can read and write files, query databases, call APIs, and execute shell commands - all orchestrated by Claude through a standardized tool-use interface. You set up the Claude Code CLI, configure MCP servers in your project or user settings, and the agent automatically discovers and uses the tools you expose. The result is a development workflow where you describe tasks in natural language and Claude executes multi-step coding operations with full access to your project context.

You can harden LLM apps against prompt injection and data leaks by stacking defenses. Input cleanup strips control tokens before they hit the model. Output filters scan replies for PII and secrets. Structured output forces the model to follow a fixed schema. Add a system prompt firewall that walls off trusted rules from user input. Together they turn one bare API call into a pipeline. Bad prompts get caught before the model runs. Risky data gets redacted after. No single layer is bulletproof. Stacked, they cut the attack surface enough that most threats give up.