/ Skills
Built for the agent, not the browser
Three open tools that hand an AI coding agent real expertise at the moment it is deciding something — instead of leaving it to recall an average of everything it was trained on.
They share one rule, and it is the whole point: none of them answers without a source. Where a topic is not covered, they say so rather than producing something plausible. Confident invention is worse than silence, and an agent cannot tell the difference on its own.
Prescriptive, sourced guidance on web, iOS, Android and macOS design, plus the UX, copywriting and SEO knowledge that makes a product convert. An MCP server, so the agent reaches for it while it is deciding.
- 30 tools, 10 categories, 88 documents
- Deterministic: contrast computed from pixels, not estimated
- No network calls at all
A static scanner that needs no parser, over web and backend source and Apple's Info.plist. Every finding carries file and line evidence and a dated, primary source. Runs as a CLI, as an MCP server, or as a gate in CI.
- 8 MCP tools, a 15-rule engine, SARIF output
- Silent on topics its knowledge base does not cover
- The engine cannot spawn a process or open a socket
The one that turns an agent into a marketer: App Store and Play listings, SEO, answer-engine visibility, Core Web Vitals, conversion. Built as a skill rather than a server, because marketing work is a conversation, not a function call.
- Seven modules; ASO, web and portfolio strategy written
- Every recommendation dated and tied to a primary source
- Claims it cannot verify are labelled, not dropped
/ Why three and not one
Because an agent asks different kinds of question. Design is a body of knowledge it should consult; security is a scan it should run over your files; marketing is a conversation with steps and judgement in it. One tool doing all three would do each of them badly, and the shapes are genuinely different — a server, a scanner, a skill.
What does not differ: they are MIT-licensed, they run on your machine, they need no account, and they cite. The last one is the only one that is hard, and it is why there are only three.