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Monday, 19 October 2026 Reading Room

Tech

How to Build a Read-Only MCP Server for Your Website

In brief A read-only MCP server lets AI assistants search and read public website content through explicit tools instead of scraping pages. For a content site, a stateless JSON-RPC endpoint, a build-time index and Markdown versions of published pages are often enough. The server should expose only public material, write nothing, return canonical source URLs and remain independent of the CMS or…

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Prompt injection is a trust-boundary bug in the retrieval pipeline

Prompt injection is a trust-boundary bug in the retrieval pipeline A retrieval-augmented application concatenates retrieved text with instructions and sends both to a model.

  • Prompt injection blurs boundary between trusted and untrusted data in retrieval pipeline.
  • Language models lack separation between instructions and content like traditional applications.
  • Mitigation involves treating retrieved content as untrusted data separate from instructions.

·dev.to

x402 meets smart wallets: where does signature compatibility stop?

A shopping agent can find the right product and produce a payment signature. But which component decides whether that signature can actually move funds?

  • x402 and smart wallets compatibility examined for signature validation boundaries.
  • Three key boundaries identified: merchant-side validation, facilitator verification, and settlement.
  • Each component must be individually assessed for compatibility, not assumed.

·dev.to

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