Articles on the Model Context Protocol (MCP) — security, setup, and how AI assistants connect to your tools. Practical, source-checked guides from Calmara.
Why Claude Desktop, claude.ai, and Claude Code report MCP servers as disconnected, and how to fix each cause: PATH problems, config errors, the SSE content-type error, OAuth expiry, and the July 2026 spec change. With log locations and reproduced error strings.
One person wired an Obsidian vault as shared memory for Claude Code, Codex, and a local LLM. The pattern is sound. Here's what a local vault can't reach, what it can't prove, and how the same idea works over MCP.
MCP's 2026-07-28 revision removes sessions, the initialize handshake, the GET stream and resumability. Legacy HTTP+SSE is deprecated, not removed. What that means for your server, with the exact status codes and headers.
Three ways to add MCP servers to Claude Desktop as of July 2026: one-click .mcpb extensions, remote custom connectors by URL, and the manual JSON config. Steps, snippets, and troubleshooting.
MCP servers can poison AI tool calls, leak credentials, and hijack accounts. Peer-reviewed 2026 research shows what's at risk and how to defend it.
Auditable AI memory, tasks, calendar, and notes. Self-hostable, BYOK, free tier.
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