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Public story · 2026-03-11 · source-backed
KV-Cache-Aware Context Engineering (Advanced) — 10x cost reduction by treating cache hit rate as your most important metric. Make system prompts stable, use append-only history, static tools with logit masking. Manus Blog
Claude Code Agent Teams (Intermediate) — Run coordinated multi-instance teams with shared task lists. Enable via CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=1. Use Shift+Down to cycle teammates, Ctrl+T for shared tasks. Claude Code Docs
Enforced TDD via Subagent Isolation (Advanced) — Three separate subagents for RED/GREEN/REFACTOR phases. Test writer can't see implementation. Hook-based activation raises enforcement from ~20% to ~84%. alexop.dev
MCP Tool Search (Intermediate) — Lazy-load tool definitions for 95% initial context savings. Write keyword-rich serverInstructions. Auto-activates above 10% context usage. claudefa.st
Cross-Platform SKILL.md (Intermediate) — Write once, run on 26+ platforms (Claude Code, Codex, Cursor, Gemini CLI). Progressive disclosure: ~100 tokens for discovery, full body on activation. Validate with skills-ref validate. agentskills.io
OWASP MCP Server Hardening (Advanced) — Defense-in-depth checklist: input validation with allowlists, containerize with default-deny network, OAuth 2.1 with short-lived tokens, log all tool invocations. 53% of MCP servers still use static credentials. OWASP
Each link below shares sources, entities, or timing with this story.
Simon Willison uses Claude Code / Shared entities / Same source / Shared topic / Earlier coverage
Linked by a graph relationship (Simon Willison uses Claude Code); both cover MCP, OAuth, OWASP, Skills You Can Learn Today; cite the same source (OWASP).
Codex competes with Claude Code / Shared entities / Same source / Shared topic / Earlier coverage
Linked by a graph relationship (Codex competes with Claude Code); both cover Claude Code, Context, GREEN, RED; cite the same source (alexop.dev).
Windsurf uses Claude Code / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Windsurf uses Claude Code); both cover Claude Code, Codex, Context, Cursor; overlapping topics (claude, code, context, server, token).
Claude Code uses MCP / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (Claude Code uses MCP); both cover Claude Code, Claude Code Docs, Lazy, MCP; reported by the same outlet (code.claude.com).
Claude Code uses OAuth / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Claude Code uses OAuth); both cover Advanced, Intermediate, MCP, OAuth; overlapping topics (advanced, intermediate, server, tool).
Windsurf uses Claude Code / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Windsurf uses Claude Code); both cover Claude Code, Codex, Cursor, Gemini CLI; overlapping topics (claude, code, context, skill).
Codex competes with Claude Code / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Codex competes with Claude Code); both cover Claude Code, Codex, Cursor, MCP; overlapping topics (claude, code, skill).
Linked by a graph relationship (Codex competes with Claude Code); both cover Claude Code, Codex, Cursor, Gemini CLI; overlapping topics (claude, code, skill).