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Middleware Patterns

Agent skill
1 skill
READMEOverview ↓

Use when designing or reviewing Next.js middleware (middleware.ts): cross-cutting request/response transforms before route resolution, Edge Runtime constraints, matcher config, NextRequest/NextResponse API, the four response shapes (next/rewrite/redirect/direct), canonical patterns (auth gate, locale routing, A/B testing, header injection, geo-routing, bot blocking), and the design rule that middleware is for cross-cutting concerns across many routes — never per-route business logic. Do NOT use for per-route HTTP endpoint logic (use route-handler-design), Server Action mutations (use server-actions-design), abstract HTTP semantics (use http-semantics), CSP and hardening (use security-fundamentals), or the cross-cutting streaming model (use streaming-architecture).

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategorySecurityStars0

About this skill

Use when designing or reviewing Next.js middleware (middleware.ts): cross-cutting request/response transforms before route resolution, Edge Runtime constraints, matcher config, NextRequest/NextResponse API, the four response shapes (next/rewrite/redirect/direct), canonical patterns (auth gate, locale routing, A/B testing, header injection, geo-routing, bot blocking), and the design rule that middleware is for cross-cutting concerns across many routes — never per-route business logic. Do NOT use for per-route HTTP endpoint logic (use route-handler-design), Server Action mutations (use server-actions-design), abstract HTTP semantics (use http-semantics), CSP and hardening (use security-fundamentals), or the cross-cutting streaming model (use streaming-architecture).

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Review, license & listing details
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This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 91227f113009956a295f72baa7f6901c4b261ee8f3fd45d91793164c22c6f09e

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Original listing metadata

Original name

middleware-patterns

Original description

Use when designing or reviewing Next.js middleware (`middleware.ts`): cross-cutting request/response transforms before route resolution, Edge Runtime constraints, `matcher` config, `NextRequest`/`NextResponse` API, the four response shapes (next/rewrite/redirect/direct), canonical patterns (auth gate, locale routing, A/B testing, header injection, geo-routing, bot blocking), and the design rule that middleware is for cross-cutting concerns across many routes — never per-route business logic. Do NOT use for per-route HTTP endpoint logic (use route-handler-design), Server Action mutations (use server-actions-design), abstract HTTP semantics (use http-semantics), CSP and hardening (use security-fundamentals), or the cross-cutting streaming model (use streaming-architecture).

About this listing

Category
Security
Reported license
Not specified
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
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