What an autonomous AI agent can do without a human, mapped to the permission modes, sandboxes and hard caps that Claude Code, Codex and Copilot document.
What an MCP server is, a minimal Python server you can run, the Claude Code command to register it, and the failure modes that make a first server go silent.
Follow a Claude Code tutorial that inspects, plans, edits, and verifies one small repository change with exact checkpoints and test evidence.
Compare Codex vs Claude Code with the same five repository tasks, evidence checklist, permission boundaries, and a decision method you can reproduce.
An honest, first-hand Cursor vs Claude Code comparison from a solo builder who ships real apps with both, with real 2026 pricing and a clear pick.
An honest roundup of the best AI coding tools for shipping real apps in 2026, with real prices, a side-by-side table, and the ones I quietly skip.