diff --git a/skills/create-agent-tui/README.md b/skills/create-agent-tui/README.md
index a7a2e34..50a03a3 100644
--- a/skills/create-agent-tui/README.md
+++ b/skills/create-agent-tui/README.md
@@ -118,6 +118,7 @@ The skill presents an interactive checklist when invoked. You pick what you need
 | Web Search | on | Real-time web search via `openrouter:web_search` |
 | Datetime | on | Current date/time via `openrouter:datetime` |
 | Image Generation | off | Generate images via `openrouter:image_generation` |
+| Advisor | off | Consult a stronger model mid-generation via `openrouter:advisor` |
 
 ### User-defined tools (your code, executed locally)
 
diff --git a/skills/create-agent-tui/SKILL.md b/skills/create-agent-tui/SKILL.md
index bbec2f0..09b8812 100644
--- a/skills/create-agent-tui/SKILL.md
+++ b/skills/create-agent-tui/SKILL.md
@@ -42,9 +42,12 @@ Present this as a multi-select checklist. Items marked **ON** are pre-selected d
 | Web Search | `openrouter:web_search` | ON | engine, max_results, domain filtering |
 | Datetime | `openrouter:datetime` | ON | timezone |
 | Image Generation | `openrouter:image_generation` | OFF | model, quality, size, format |
+| Advisor | `openrouter:advisor` | OFF | model, instructions, tools, forward_transcript, named advisors |
 
 Server tools go in the `tools` array alongside user-defined tools. No client code needed — OpenRouter executes them.
 
+**Advisor** lets the agent consult a stronger model mid-generation — before committing to an approach, when stuck, or before declaring done. Pass `parameters.model` to pin an advisor model, or let the executor choose per call. Supports `instructions`, `forward_transcript`, sub-agent `tools`, and named advisor profiles via `parameters.advisors`. Docs: [openrouter.ai/docs/guides/features/server-tools/advisor](https://openrouter.ai/docs/guides/features/server-tools/advisor).
+
 ### User-Defined Tools (client-side, generated into src/tools/)
 
 | Tool | Default | Description |
@@ -347,6 +350,9 @@ export const tools = [
   // Server tools — executed by OpenRouter, no client implementation needed
   serverTool({ type: 'openrouter:web_search' }),
   serverTool({ type: 'openrouter:datetime', parameters: { timezone: 'UTC' } }),
+
+  // Advisor — consult a stronger model mid-generation (off by default, add when needed)
+  // serverTool({ type: 'openrouter:advisor', parameters: { model: '~anthropic/claude-opus-latest' } }),
 ];
 ```
 
diff --git a/skills/create-agent-tui/sample/src/tools/index.ts b/skills/create-agent-tui/sample/src/tools/index.ts
index cd3528e..69f774d 100644
--- a/skills/create-agent-tui/sample/src/tools/index.ts
+++ b/skills/create-agent-tui/sample/src/tools/index.ts
@@ -18,4 +18,7 @@ export const tools = [
 
   serverTool({ type: 'openrouter:web_search' }),
   serverTool({ type: 'openrouter:datetime', parameters: { timezone: 'UTC' } }),
+
+  // Advisor — consult a stronger model mid-generation (uncomment to enable)
+  // serverTool({ type: 'openrouter:advisor', parameters: { model: '~anthropic/claude-opus-latest' } }),
 ];
diff --git a/skills/create-headless-agent/README.md b/skills/create-headless-agent/README.md
index 25d663a..c5536ee 100644
--- a/skills/create-headless-agent/README.md
+++ b/skills/create-headless-agent/README.md
@@ -58,6 +58,7 @@ The skill presents an interactive checklist when invoked:
 | Web Fetch | on | Fetch text content from a URL via `openrouter:web_fetch` |
 | Datetime | on | Current date/time via `openrouter:datetime` |
 | Image Generation | off | Generate images via `openrouter:image_generation` |
+| Advisor | off | Consult a stronger model mid-generation via `openrouter:advisor` |
 
 ### User-defined tools (your code, executed locally)
 
@@ -127,7 +128,7 @@ my-agent/
     agent.test.ts           Example test (bun:test)
 ```
 
-Server tools (`openrouter:web_search`, `openrouter:web_fetch`, `openrouter:datetime`) are wired in `tools/index.ts` and execute on OpenRouter's side — no client code.
+Server tools (`openrouter:web_search`, `openrouter:web_fetch`, `openrouter:datetime`, `openrouter:advisor`) are wired in `tools/index.ts` and execute on OpenRouter's side — no client code.
 
 ## Sample
 
diff --git a/skills/create-headless-agent/SKILL.md b/skills/create-headless-agent/SKILL.md
index cae0caf..5351caa 100644
--- a/skills/create-headless-agent/SKILL.md
+++ b/skills/create-headless-agent/SKILL.md
@@ -47,9 +47,12 @@ Present this as a multi-select checklist. Items marked **ON** are pre-selected d
 | Web Fetch | `openrouter:web_fetch` | ON |
 | Datetime | `openrouter:datetime` | ON |
 | Image Generation | `openrouter:image_generation` | OFF |
+| Advisor | `openrouter:advisor` | OFF |
 
 Server tools go in the `tools` array alongside user-defined tools. No client code needed — OpenRouter executes them. Docs: [openrouter.ai/docs/guides/features/server-tools](https://openrouter.ai/docs/guides/features/server-tools/overview).
 
+**Advisor** lets the agent consult a stronger model mid-generation — before committing to an approach, when stuck, or before declaring done. Pass `parameters.model` to pin an advisor model, or let the executor choose per call. Supports `instructions`, `forward_transcript`, sub-agent `tools`, and named advisor profiles via `parameters.advisors`. Docs: [openrouter.ai/docs/guides/features/server-tools/advisor](https://openrouter.ai/docs/guides/features/server-tools/advisor).
+
 ### User-Defined Tools (client-side, generated into src/tools/)
 
 | Tool | Default | Description |
@@ -355,6 +358,9 @@ export const tools = [
   serverTool({ type: 'openrouter:web_search' }),
   serverTool({ type: 'openrouter:web_fetch' }),
   serverTool({ type: 'openrouter:datetime', parameters: { timezone: 'UTC' } }),
+
+  // Advisor — consult a stronger model mid-generation (off by default, add when needed)
+  // serverTool({ type: 'openrouter:advisor', parameters: { model: '~anthropic/claude-opus-latest' } }),
 ] as const;
 ```
 
diff --git a/skills/create-headless-agent/sample/src/tools/index.ts b/skills/create-headless-agent/sample/src/tools/index.ts
index a78113e..3d87ca0 100644
--- a/skills/create-headless-agent/sample/src/tools/index.ts
+++ b/skills/create-headless-agent/sample/src/tools/index.ts
@@ -23,4 +23,7 @@ export const tools = [
   serverTool({ type: 'openrouter:web_search' }),
   serverTool({ type: 'openrouter:web_fetch' }),
   serverTool({ type: 'openrouter:datetime', parameters: { timezone: 'UTC' } }),
+
+  // Advisor — consult a stronger model mid-generation (uncomment to enable)
+  // serverTool({ type: 'openrouter:advisor', parameters: { model: '~anthropic/claude-opus-latest' } }),
 ] as const;
diff --git a/skills/openrouter-typescript-sdk/SKILL.md b/skills/openrouter-typescript-sdk/SKILL.md
index 7fc11cb..d316ff9 100644
--- a/skills/openrouter-typescript-sdk/SKILL.md
+++ b/skills/openrouter-typescript-sdk/SKILL.md
@@ -498,6 +498,93 @@ const manualTool = tool({
 });
 ```
 
+#### Server Tools
+OpenRouter provides built-in server tools that execute on OpenRouter's side — no client implementation needed. Use `serverTool()` to add them to the `tools` array alongside regular tools:
+
+```typescript
+import { serverTool } from '@openrouter/agent';
+
+const result = client.callModel({
+  model: 'openai/gpt-5-nano',
+  input: 'Research the latest on quantum computing',
+  tools: [
+    serverTool({ type: 'openrouter:web_search' }),
+    serverTool({ type: 'openrouter:web_fetch' }),
+    serverTool({ type: 'openrouter:datetime', parameters: { timezone: 'UTC' } }),
+    serverTool({ type: 'openrouter:image_generation' }),
+    serverTool({ type: 'openrouter:advisor', parameters: { model: '~anthropic/claude-opus-latest' } }),
+  ]
+});
+```
+
+Available server tools: `openrouter:web_search`, `openrouter:web_fetch`, `openrouter:datetime`, `openrouter:image_generation`, `openrouter:advisor`. Docs: [openrouter.ai/docs/guides/features/server-tools](https://openrouter.ai/docs/guides/features/server-tools/overview).
+
+#### Advisor Tool
+
+The `openrouter:advisor` server tool lets a model consult a stronger advisor model mid-generation. The model invokes it with a `prompt` when it hits a decision point, is stuck, or wants validation before proceeding.
+
+```typescript
+// Basic — pin an advisor model
+serverTool({
+  type: 'openrouter:advisor',
+  parameters: { model: '~anthropic/claude-opus-latest' }
+})
+
+// With instructions and sub-agent tools
+serverTool({
+  type: 'openrouter:advisor',
+  parameters: {
+    model: '~anthropic/claude-opus-latest',
+    instructions: 'You are a senior staff engineer. Be decisive.',
+    tools: [{ type: 'openrouter:web_search' }],
+    forward_transcript: false,
+  }
+})
+
+// Named advisor profiles — the model selects by name per call
+serverTool({
+  type: 'openrouter:advisor',
+  parameters: {
+    advisors: [
+      {
+        name: 'reviewer',
+        model: '~anthropic/claude-opus-latest',
+        instructions: 'You are a critical code reviewer. Find the flaws.',
+      },
+      {
+        name: 'architect',
+        model: '~openai/gpt-latest',
+        instructions: 'You are a systems architect. Think about scale.',
+      },
+    ]
+  }
+})
+```
+
+**Parameters** (`parameters` object on the tool entry):
+
+| Field | Default | Description |
+|-------|---------|-------------|
+| `model` | Outer request model | Advisor model to consult (any OpenRouter model) |
+| `advisors` | None | Roster of named advisor profiles — model selects by `name` per call |
+| `instructions` | None | System instructions for the advisor |
+| `tools` | None | Tools available to the advisor sub-agent (e.g. `openrouter:web_search`) |
+| `forward_transcript` | `false` | Forward full parent conversation to the advisor |
+| `max_tool_calls` | Provider default | Max tool-calling steps for the advisor (1–25) |
+| `max_completion_tokens` | Provider default | Max output tokens for the advisor call |
+| `reasoning` | Provider default | Reasoning config (`{ effort, max_tokens }`) |
+| `temperature` | Provider default | Sampling temperature (0–2) |
+
+**Tool-call arguments** (passed by the model when invoking):
+
+| Argument | Description |
+|----------|-------------|
+| `prompt` | What the model wants advice on (required unless `forward_transcript` is `true`) |
+| `name` | Which named advisor profile to consult (only when `advisors` roster is configured) |
+| `model` | Advisor model override (only honored when neither the profile nor definition fixes one) |
+
+Docs: [openrouter.ai/docs/guides/features/server-tools/advisor](https://openrouter.ai/docs/guides/features/server-tools/advisor).
+
 ---
 
 ## Multi-Turn Conversations with Stop Conditions