# Signal Over Noise > Practical AI for people running a business, not studying it. A publication by Jim Christian about using AI to actually run a business and build things, with the costs and dead-ends left in. Signal Over Noise is written by Jim Christian from Valencia, Spain. It covers what happens when AI tools meet real work: what was tried, what broke, what it cost, and what he would do differently. Everything published on this site is free to read. ## Core pages - [Latest](https://signalovernoise.at/posts/): Every issue, Field Note and Insight, newest first (187 posts) - [Topics](https://signalovernoise.at/topics/): The five subjects the site covers, and what is in each - [Guides](https://signalovernoise.at/guides/): 11 step-by-step how-to guides, grouped by difficulty - [About](https://signalovernoise.at/about/): Who writes this and why - [Newsletter](https://signalovernoise.at/newsletter/): What the newsletter is and how to subscribe - [Search](https://signalovernoise.at/search/): Full-text search across posts, guides and glossary ## Topics - [Security & Risk](https://signalovernoise.at/topics/security-and-risk/): What breaks, who is liable, and what an agent can reach once it is already inside - [Agents & Tooling](https://signalovernoise.at/topics/agents-and-tooling/): Agents, MCP, and wiring AI into the systems you already run - [Writing & Thinking](https://signalovernoise.at/topics/writing-and-thinking/): Prompting, writing, memory, and whether the model is telling you the truth - [Building](https://signalovernoise.at/topics/building/): Making things with AI — coding, local models, and open weights - [The Industry](https://signalovernoise.at/topics/the-industry/): The labs, the money, and what enterprises are actually doing ## Resources - [Glossary](https://signalovernoise.at/resources/glossary/): 105 AI terms defined in plain language - [MCP Servers](https://signalovernoise.at/resources/mcp-servers/): The Model Context Protocol servers Jim actually uses, grouped by job - [Skills](https://signalovernoise.at/resources/skills/): Open-source Claude Code skills he has built and published ## Publishing rhythm - Field Notes through the week: shorter pieces on whatever is in front of him - The main issue on Fridays: one idea worked all the way through ## Newsletter - Free: every Field Note and every Friday issue, in full. No paywall on the writing. - Supporter (€7/month or €69/year): the same writing, ad-free. That is the whole difference. Subscribe: https://signalovernoise.at/newsletter/ ## Principles 1. Integration over capability — tools matter less than fitting your workflow 2. Test before recommending — everything is tested in real use 3. Fail transparently — the dead-ends get published too 4. No hype, no doom — honest assessments, with the numbers checked ## Elsewhere - Jim Christian: https://jimchristian.net - GitHub: https://github.com/aplaceforallmystuff