Cursor

AGENTS.md, CLAUDE.md, .cursor/rules, SKILL.md, and Copilot instructions all do the same job differently. Here is the 2026 breakdown of format, frontmatter, monorepo handling, and which one to pick.

Use the Playwright MCP server with Claude Code and Cursor to generate E2E tests against your live DOM — setup, review loop, failure modes, conventions file.

Install the Cline agent in Cursor and point it at DeepSeek V4 — real config JSON, Pro vs Flash guidance, the reasoning_content gotcha, and a cost worked example.

Cursor silently routes Composer 2 to Composer 2 Fast on every new chat. Here are the confirmed workarounds, ranked by reliability, plus how to verify which model you are actually on.

Cursor crawling on a 500k+ LOC repo? Seven concrete fixes, per-stack .cursorignore recipes, the actual memory math for M-series Macs, and when to give up and reach for a different tool.

Wire DeepSeek V4 Pro or V4 Flash into Cursor as a custom model, handle the Composer reasoning_content caveat, and migrate off the deepseek-chat alias before the July 24, 2026 deadline.

A curated list of the 15 MCP servers worth installing for Claude Code and Cursor in 2026 — what each one does, the install command, when it shines, and how to stay under Cursor's 40-tool ceiling.

Cursor 3 ships an agent-first IDE and Composer 2 — Cursor's own coding model on Kimi K2.5 — beats Opus 4.6 on Terminal-Bench at a fraction of the cost. Here is the walkthrough and the reality check.

Cursor Composer 2 vs Claude Sonnet 4.6, with the disambiguation other comparisons skip — Composer is both a feature and a model. Benchmarks, pricing, decision tree, and real workflow patterns for May 2026.

A technical comparison of Void AI and Cursor covering privacy architecture, local model support, feature parity, pricing, and the development pause that changes Void's long-term outlook.