Writing
- Use your Claude or ChatGPT plan for coding agents: which tools are allowed, what they do and what they costAnthropic and OpenAI now take opposite positions on third-party tools that run on a subscription. Here is what each vendor's terms allow, about 40 orchestrators, mobile apps, cloud runners and editors compared on how they connect to your plan, and when a subscription beats paying per token.2026-10-14
- Is grep replacing vector search? When to use embeddings, agentic search or long context in 2026Claude Code and Codex search code with grep, while Cursor and Copilot index it with embeddings. We checked the papers, benchmarks and October 2026 prices to show when embeddings still earn their place, what to use instead, and what a vector store actually costs.2026-10-10
- How to write instructions for AI agents: what's tested and what's vibesDo AGENTS.md, CLAUDE.md and system prompts actually help? We read the studies, benchmarks and lab guides on length, specificity, emphasis, structure and conflicts, and labelled every rule by its evidence: tested, lab guidance, vendor eval or vibes.2026-10-09
- How to sandbox Claude Code, Codex, Copilot and Cursor on your own machine: 9 options comparedBuilt-in agent sandboxes, Microsoft Execution Containers, OpenShell, Docker Sandboxes, dev containers and VMs compared, with setup steps and decision rules.2026-10-08
- How to write an agent skill that actually gets used: what the evidence saysSkills can lift an agent's pass rate by double digits, or never fire at all. A meta-study of the official guides, the papers and the best-tested public skills, with every recommendation graded by how strong its evidence is.2026-10-02
