Add flags-sdk skill synced from vercel/flags

CLAUDE.md

@@ -66,7 +66,7 @@ Special triggers in PreToolUse:
 
 ### Skill Structure (`skills/<name>/SKILL.md`)
 
-33 skills in `skills/`. Each has a `SKILL.md` with YAML frontmatter:
+35 skills in `skills/`. Each has a `SKILL.md` with YAML frontmatter:
 
 ```yaml
 ---

README.md

@@ -46,7 +46,7 @@ A text-form relational graph covering:
 - Common cross-product workflows
 - Migration awareness for sunset products
 
-### Skills (34 skills)
+### Skills (35 skills)
 
 | Skill                   | Covers                                                                                                                               |
 | ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
@@ -62,6 +62,7 @@ A text-form relational graph covering:
 | `deployments-cicd`      | Deployment and CI/CD — deploy, promote, rollback, --prebuilt, CI workflow files                                                      |
 | `env-vars`              | Environment variable management — .env files, vercel env commands, OIDC tokens                                                       |
 | `eve`                   | Filesystem-first framework for durable AI agents, agent applications, channels, sandboxes, schedules, evals, and frontend clients    |
+| `flags-sdk`             | Feature flags and A/B tests — Flags SDK, provider adapters, `vercel flags` CLI, precompute, Flags Explorer                           |
 | `knowledge-update`      | Knowledge update guidance for the plugin                                                                                             |
 | `marketplace`           | Integration discovery, installation, auto-provisioned env vars, unified billing                                                      |
 | `microfrontends`        | Multi-zone and microfrontend architecture, routing, deployment boundaries, and shared dependencies                                   |
@@ -81,7 +82,7 @@ A text-form relational graph covering:
 | `vercel-functions`      | Serverless, Edge, Fluid Compute, streaming, Cron Jobs, configuration                                                                 |
 | `vercel-sandbox`        | Ephemeral Firecracker microVMs for running untrusted/AI-generated code safely                                                        |
 | `vercel-services`       | Multiple frontends and backends in one project, with public rewrites and private service bindings                                    |
-| `vercel-storage`        | Blob, Edge Config, Neon Postgres, Upstash Redis, migration from sunset packages                                                      |
+| `vercel-storage`        | Blob, Global Config (formerly Edge Config), Neon Postgres, Upstash Redis, migration from sunset packages                             |
 | `verification`          | Full-story verification — infers user story, verifies end-to-end browser → API → data → response                                     |
 | `workflow`              | Workflow SDK — durable execution, DurableAgent, steps, Worlds, pause/resume                                                          |
 
@@ -182,7 +183,7 @@ setx VERCEL_PLUGIN_TELEMETRY off
 
 ## Upstream Skill Sync
 
-11 skills are synced from their upstream source repos on [skills.sh](https://skills.sh). Each synced skill uses an **overlay + upstream** model:
+12 skills are synced from their upstream source repos on [skills.sh](https://skills.sh). Each synced skill uses an **overlay + upstream** model:
 
 ```
 skills/<name>/
@@ -204,6 +205,7 @@ skills/<name>/
 | `ai-sdk`                | [vercel/ai](https://github.com/vercel/ai)                                 |
 | `chat-sdk`              | [vercel/chat](https://github.com/vercel/chat)                             |
 | `eve`                   | [vercel/eve](https://github.com/vercel/eve)                               |
+| `flags-sdk`             | [vercel/flags](https://github.com/vercel/flags)                           |
 | `next-cache-components` | [vercel-labs/next-skills](https://github.com/vercel-labs/next-skills)     |
 | `next-forge`            | [vercel/next-forge](https://github.com/vercel/next-forge)                 |
 | `next-upgrade`          | [vercel-labs/next-skills](https://github.com/vercel-labs/next-skills)     |
@@ -236,7 +238,7 @@ Exits non-zero if any `SKILL.md` is stale. Add to CI to catch drift.
 vercel-plugin/
 ├── .plugin/plugin.json              # Plugin manifest
 ├── vercel.md                        # Ecosystem graph + conventions (injected via SessionStart hook)
-├── skills/                          # 34 skills
+├── skills/                          # 35 skills
 │   ├── ai-sdk/                      # Upstream-synced skill example:
 │   │   ├── overlay.yaml             #   Plugin injection metadata
 │   │   ├── upstream/                #   Pure upstream content
@@ -277,7 +279,7 @@ bun run build:from-skills # Stage 4: Resolve template includes
 - AI Gateway (100+ models, provider routing, cost tracking)
 - Vercel Functions (Fluid Compute, streaming, Cron Jobs)
 - Vercel Services (multiple frontends and backends, public rewrites, private bindings)
-- Storage (Blob, Edge Config, Neon Postgres, Upstash Redis)
+- Storage (Blob, Global Config, Neon Postgres, Upstash Redis)
 - Routing Middleware (request interception, Edge/Node.js/Bun runtimes)
 - Runtime Cache API (per-region KV cache, tag-based invalidation)
 - Vercel Flags (feature flags, Flags Explorer, gradual rollouts, A/B testing)

agents/deployment-expert.md

@@ -56,7 +56,7 @@ Build failed?
 │  ├─ Under 5 min → Use Fluid Compute with streaming
 │  ├─ Up to 15 min → Use Vercel Functions with `maxDuration` in vercel.json
 │  └─ Hours/days → Use Workflow SDK (DurableAgent or workflow steps)
-└─ DB query slow? → Add connection pooling, check cold start, use Edge Config
+└─ DB query slow? → Add connection pooling, check cold start, use Global Config
 ```
 
 <!-- Sourced from vercel-functions skill: Function Runtime Diagnostics > 500 Error Diagnostics -->

agents/performance-optimizer.md

@@ -45,7 +45,7 @@ LCP > 2.5s?
 │  ├─ Using SSR for static content? → Switch to SSG or ISR
 │  ├─ Can use Cache Components? → Add `'use cache'` to slow Server Components
 │  ├─ Database queries slow? → Add connection pooling, check query plans
-│  ├─ Edge Config available? → Use for configuration data (< 5ms reads)
+│  ├─ Global Config available? → Use for configuration data (< 5ms reads)
 │  └─ Region mismatch? → Deploy function in same region as database
 │
 └─ Render-blocking resources?

agents/performance-optimizer.md.tmpl

@@ -45,7 +45,7 @@ LCP > 2.5s?
 │  ├─ Using SSR for static content? → Switch to SSG or ISR
 │  ├─ Can use Cache Components? → Add `'use cache'` to slow Server Components
 │  ├─ Database queries slow? → Add connection pooling, check query plans
-│  ├─ Edge Config available? → Use for configuration data (< 5ms reads)
+│  ├─ Global Config available? → Use for configuration data (< 5ms reads)
 │  └─ Region mismatch? → Deploy function in same region as database
 │
 └─ Render-blocking resources?

generated/build-from-skills.manifest.json

@@ -1,6 +1,6 @@
 {
   "version": 1,
-  "generatedAt": "2026-08-12T03:07:25.183Z",
+  "generatedAt": "2026-08-25T10:09:15.534Z",
   "templates": [
     {
       "template": "agents/ai-architect.md.tmpl",
@@ -25,72 +25,6 @@
         }
       ]
     },
-    {
-      "template": "agents/performance-optimizer.md.tmpl",
-      "output": "agents/performance-optimizer.md",
-      "dependencies": [
-        "nextjs",
-        "next-cache-components"
-      ],
-      "includes": [
-        {
-          "marker": "{{include:skill:nextjs:file:references/rsc-boundaries.md}}",
-          "skillName": "nextjs",
-          "target": "file:references/rsc-boundaries.md",
-          "type": "section",
-          "lineNumber": 123
-        },
-        {
-          "marker": "{{include:skill:nextjs:file:references/bundling.md:Bundle Analysis}}",
-          "skillName": "nextjs",
-          "target": "file:references/bundling.md:Bundle Analysis",
-          "type": "section",
-          "lineNumber": 130
-        },
-        {
-          "marker": "{{include:skill:nextjs:file:references/data-patterns.md:Decision Tree}}",
-          "skillName": "nextjs",
-          "target": "file:references/data-patterns.md:Decision Tree",
-          "type": "section",
-          "lineNumber": 137
-        },
-        {
-          "marker": "{{include:skill:next-cache-components:Cache Invalidation}}",
-          "skillName": "next-cache-components",
-          "target": "Cache Invalidation",
-          "type": "section",
-          "lineNumber": 142
-        },
-        {
-          "marker": "{{include:skill:nextjs:file:references/image.md}}",
-          "skillName": "nextjs",
-          "target": "file:references/image.md",
-          "type": "section",
-          "lineNumber": 168
-        },
-        {
-          "marker": "{{include:skill:nextjs:file:references/font.md}}",
-          "skillName": "nextjs",
-          "target": "file:references/font.md",
-          "type": "section",
-          "lineNumber": 173
-        },
-        {
-          "marker": "{{include:skill:next-cache-components:`use cache` Directive}}",
-          "skillName": "next-cache-components",
-          "target": "`use cache` Directive",
-          "type": "section",
-          "lineNumber": 178
-        },
-        {
-          "marker": "{{include:skill:nextjs:file:references/data-patterns.md:Client Component Data Fetching}}",
-          "skillName": "nextjs",
-          "target": "file:references/data-patterns.md:Client Component Data Fetching",
-          "type": "section",
-          "lineNumber": 183
-        }
-      ]
-    },
     {
       "template": "agents/deployment-expert.md.tmpl",
       "output": "agents/deployment-expert.md",
@@ -172,46 +106,68 @@
       ]
     },
     {
-      "template": "commands/deploy.md.tmpl",
-      "output": "commands/deploy.md",
+      "template": "agents/performance-optimizer.md.tmpl",
+      "output": "agents/performance-optimizer.md",
       "dependencies": [
-        "deployments-cicd"
+        "nextjs",
+        "next-cache-components"
       ],
       "includes": [
         {
-          "marker": "{{include:skill:deployments-cicd:Deployment Commands > Preview Deployment}}",
-          "skillName": "deployments-cicd",
-          "target": "Deployment Commands > Preview Deployment",
+          "marker": "{{include:skill:nextjs:file:references/rsc-boundaries.md}}",
+          "skillName": "nextjs",
+          "target": "file:references/rsc-boundaries.md",
           "type": "section",
-          "lineNumber": 56
+          "lineNumber": 123
         },
         {
-          "marker": "{{include:skill:deployments-cicd:Deployment Commands > Production Deployment}}",
-          "skillName": "deployments-cicd",
-          "target": "Deployment Commands > Production Deployment",
+          "marker": "{{include:skill:nextjs:file:references/bundling.md:Bundle Analysis}}",
+          "skillName": "nextjs",
+          "target": "file:references/bundling.md:Bundle Analysis",
           "type": "section",
-          "lineNumber": 61
+          "lineNumber": 130
         },
         {
-          "marker": "{{include:skill:deployments-cicd:Deployment Commands > Inspect Deployments}}",
-          "skillName": "deployments-cicd",
-          "target": "Deployment Commands > Inspect Deployments",
+          "marker": "{{include:skill:nextjs:file:references/data-patterns.md:Decision Tree}}",
+          "skillName": "nextjs",
+          "target": "file:references/data-patterns.md:Decision Tree",
           "type": "section",
-          "lineNumber": 78
+          "lineNumber": 137
         },
         {
-          "marker": "{{include:skill:deployments-cicd:Deploy Summary Format}}",
-          "skillName": "deployments-cicd",
-          "target": "Deploy Summary Format",
+          "marker": "{{include:skill:next-cache-components:Cache Invalidation}}",
+          "skillName": "next-cache-components",
+          "target": "Cache Invalidation",
           "type": "section",
-          "lineNumber": 132
+          "lineNumber": 142
         },
         {
-          "marker": "{{include:skill:deployments-cicd:Deploy Next Steps}}",
-          "skillName": "deployments-cicd",
-          "target": "Deploy Next Steps",
+          "marker": "{{include:skill:nextjs:file:references/image.md}}",
+          "skillName": "nextjs",
+          "target": "file:references/image.md",
           "type": "section",
-          "lineNumber": 137
+          "lineNumber": 168
+        },
+        {
+          "marker": "{{include:skill:nextjs:file:references/font.md}}",
+          "skillName": "nextjs",
+          "target": "file:references/font.md",
+          "type": "section",
+          "lineNumber": 173
+        },
+        {
+          "marker": "{{include:skill:next-cache-components:`use cache` Directive}}",
+          "skillName": "next-cache-components",
+          "target": "`use cache` Directive",
+          "type": "section",
+          "lineNumber": 178
+        },
+        {
+          "marker": "{{include:skill:nextjs:file:references/data-patterns.md:Client Component Data Fetching}}",
+          "skillName": "nextjs",
+          "target": "file:references/data-patterns.md:Client Component Data Fetching",
+          "type": "section",
+          "lineNumber": 183
         }
       ]
     },
@@ -287,12 +243,6 @@
         }
       ]
     },
-    {
-      "template": "commands/status.md.tmpl",
-      "output": "commands/status.md",
-      "dependencies": [],
-      "includes": []
-    },
     {
       "template": "commands/env.md.tmpl",
       "output": "commands/env.md",
@@ -343,6 +293,56 @@
           "lineNumber": 128
         }
       ]
+    },
+    {
+      "template": "commands/status.md.tmpl",
+      "output": "commands/status.md",
+      "dependencies": [],
+      "includes": []
+    },
+    {
+      "template": "commands/deploy.md.tmpl",
+      "output": "commands/deploy.md",
+      "dependencies": [
+        "deployments-cicd"
+      ],
+      "includes": [
+        {
+          "marker": "{{include:skill:deployments-cicd:Deployment Commands > Preview Deployment}}",
+          "skillName": "deployments-cicd",
+          "target": "Deployment Commands > Preview Deployment",
+          "type": "section",
+          "lineNumber": 56
+        },
+        {
+          "marker": "{{include:skill:deployments-cicd:Deployment Commands > Production Deployment}}",
+          "skillName": "deployments-cicd",
+          "target": "Deployment Commands > Production Deployment",
+          "type": "section",
+          "lineNumber": 61
+        },
+        {
+          "marker": "{{include:skill:deployments-cicd:Deployment Commands > Inspect Deployments}}",
+          "skillName": "deployments-cicd",
+          "target": "Deployment Commands > Inspect Deployments",
+          "type": "section",
+          "lineNumber": 78
+        },
+        {
+          "marker": "{{include:skill:deployments-cicd:Deploy Summary Format}}",
+          "skillName": "deployments-cicd",
+          "target": "Deploy Summary Format",
+          "type": "section",
+          "lineNumber": 132
+        },
+        {
+          "marker": "{{include:skill:deployments-cicd:Deploy Next Steps}}",
+          "skillName": "deployments-cicd",
+          "target": "Deploy Next Steps",
+          "type": "section",
+          "lineNumber": 137
+        }
+      ]
     }
   ]
 }