diff --git a/doc/api/async_context.md b/doc/api/async_context.md
index dd3b6a834ec950..f63e23d40959b1 100644
--- a/doc/api/async_context.md
+++ b/doc/api/async_context.md
@@ -6,6 +6,14 @@
 
 <!-- source_link=lib/async_hooks.js -->
 
+<!-- YAML
+llm_description: >
+  Tracks asynchronous execution context. Enables storing and propagating state
+  across async operations like callbacks and promises. Useful for request
+  tracking, logging, or context management. Provides AsyncLocalStorage for
+  scoped storage and AsyncResource for custom async context binding.
+-->
+
 ## Introduction
 
 These classes are used to associate state and propagate it throughout
diff --git a/doc/api/async_hooks.md b/doc/api/async_hooks.md
index 07793fca90e445..782f3663115a95 100644
--- a/doc/api/async_hooks.md
+++ b/doc/api/async_hooks.md
@@ -2,6 +2,13 @@
 
 <!--introduced_in=v8.1.0-->
 
+<!-- YAML
+llm_description: >
+  Low-level API to monitor asynchronous operations (timeouts, promises,
+  callbacks). Primarily for advanced diagnostics or custom profiling tools.
+  Avoid on production, use AsyncLocalStorage for most context-tracking needs.
+-->
+
 > Stability: 1 - Experimental. Please migrate away from this API, if you can.
 > We do not recommend using the [`createHook`][], [`AsyncHook`][], and
 > [`executionAsyncResource`][] APIs as they have usability issues, safety risks,
diff --git a/doc/api/cluster.md b/doc/api/cluster.md
index fa9942f4668bdf..fda00bd0752633 100644
--- a/doc/api/cluster.md
+++ b/doc/api/cluster.md
@@ -2,6 +2,13 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Enables multi-process scaling by forking identical Node.js instances
+  (workers) to handle loads across CPU cores. Ideal for HTTP servers needing
+  parallelism. For lightweight concurrency, prefer worker_threads.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/cluster.js -->
diff --git a/doc/api/debugger.md b/doc/api/debugger.md
index 03e9cd9185027e..11a2edc2fde877 100644
--- a/doc/api/debugger.md
+++ b/doc/api/debugger.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v0.9.12-->
 
+<!-- YAML
+llm_description: >
+  Provides a CLI interface for debugging Node.js applications, including
+  basic stepping and inspection.
+-->
+
 > Stability: 2 - Stable
 
 <!-- type=misc -->
diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index a111b3a0d6ce4e..4c6bb74c797271 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -2,6 +2,11 @@
 
 <!--introduced_in=v7.7.0-->
 
+<!-- YAML
+llm_description: >
+  Lists APIs that are deprecated and subject to removal in future releases.
+-->
+
 <!-- type=misc -->
 
 Node.js APIs might be deprecated for any of the following reasons:
diff --git a/doc/api/diagnostics_channel.md b/doc/api/diagnostics_channel.md
index 1c742f7f972ce0..1f57cc4c919cdd 100644
--- a/doc/api/diagnostics_channel.md
+++ b/doc/api/diagnostics_channel.md
@@ -14,6 +14,13 @@ changes:
 
 <!--introduced_in=v15.1.0-->
 
+<!-- YAML
+llm_description: >
+  Publish/subscribe API for custom diagnostic events (e.g., database query
+  metrics, HTTP request lifecycle). Integrates with APM tools or logging
+  systems to monitor internal operations.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/diagnostics_channel.js -->
diff --git a/doc/api/domain.md b/doc/api/domain.md
index 47f97035fca8d6..4e390a542f05f5 100644
--- a/doc/api/domain.md
+++ b/doc/api/domain.md
@@ -17,6 +17,11 @@ changes:
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Deprecated (avoid). Legacy API for error handling across async operations.
+-->
+
 > Stability: 0 - Deprecated
 
 <!-- source_link=lib/domain.js -->
diff --git a/doc/api/errors.md b/doc/api/errors.md
index ff8c1ef6f9ce21..a797fea85cf667 100644
--- a/doc/api/errors.md
+++ b/doc/api/errors.md
@@ -2,6 +2,11 @@
 
 <!--introduced_in=v4.0.0-->
 
+<!-- YAML
+llm_description: >
+  Describes the error types in Node.js and how they are handled during execution.
+-->
+
 <!--type=misc-->
 
 Applications running in Node.js will generally experience the following
diff --git a/doc/api/esm.md b/doc/api/esm.md
index 69ed56801da5d4..213f468bf8439e 100644
--- a/doc/api/esm.md
+++ b/doc/api/esm.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v8.5.0-->
 
+<!-- YAML
+llm_description: >
+  Provides support for ECMAScript modules in Node.js, enabling standards-based
+  module syntax (import/export) and interoperability with CommonJS.
+-->
+
 <!-- type=misc -->
 
 <!-- YAML
diff --git a/doc/api/globals.md b/doc/api/globals.md
index 0de73e58e9414d..6c70bf2d1379bf 100644
--- a/doc/api/globals.md
+++ b/doc/api/globals.md
@@ -2,6 +2,11 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Lists built-in global objects and functions available in the Node.js runtime.
+-->
+
 <!-- type=misc -->
 
 > Stability: 2 - Stable
diff --git a/doc/api/http.md b/doc/api/http.md
index 2148ea36355d17..2bbb655f3e3a34 100644
--- a/doc/api/http.md
+++ b/doc/api/http.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Provides functionality for creating HTTP servers and clients, enabling the
+  handling of HTTP requests and responses.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/http.js -->
diff --git a/doc/api/http2.md b/doc/api/http2.md
index decbdecf6e550c..93b94fdeeaf72f 100644
--- a/doc/api/http2.md
+++ b/doc/api/http2.md
@@ -19,6 +19,8 @@ changes:
 
 <!--introduced_in=v8.4.0-->
 
+<!-- llm_description: Enables HTTP/2 protocol support. -->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/http2.js -->
diff --git a/doc/api/index.md b/doc/api/index.md
index 8db8b8c8806274..ab0f9259974fa9 100644
--- a/doc/api/index.md
+++ b/doc/api/index.md
@@ -5,6 +5,8 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- llm_description: Entry point for the Node.js documentation index. -->
+
 * [About this documentation](documentation.md)
 * [Usage and example](synopsis.md)
 
diff --git a/doc/api/inspector.md b/doc/api/inspector.md
index f56197d5baa403..a2033c6fad711e 100644
--- a/doc/api/inspector.md
+++ b/doc/api/inspector.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v8.0.0-->
 
+<!-- YAML
+llm_description: >
+  Enables programmatic interaction with the V8 Inspector for debugging and
+  profiling.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/inspector.js -->
diff --git a/doc/api/module.md b/doc/api/module.md
index f1e55c733ea4cc..23ab8dd9db010a 100644
--- a/doc/api/module.md
+++ b/doc/api/module.md
@@ -2,6 +2,13 @@
 
 <!--introduced_in=v12.20.0-->
 
+<!-- YAML
+llm_description: >
+  Provides utilities for interacting with Node.js modules, including support
+  for module creation, resolution, customization hooks, and compile caching.
+  Enables advanced module loading behavior.
+-->
+
 <!-- YAML
 added: v0.3.7
 -->
diff --git a/doc/api/modules.md b/doc/api/modules.md
index 4ef79b855bd877..442a7915044b1e 100644
--- a/doc/api/modules.md
+++ b/doc/api/modules.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Node supports both CommonJS (require()) and ES Modules (import/export). Use
+  ESM, which enables browser compatibility and top-level await.
+-->
+
 > Stability: 2 - Stable
 
 <!--name=module-->
diff --git a/doc/api/os.md b/doc/api/os.md
index 9f2aa0390cc56a..e1c406bd904d5e 100644
--- a/doc/api/os.md
+++ b/doc/api/os.md
@@ -2,6 +2,13 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Provides cross-platform utilities for accessing operating system information,
+  including CPU architecture, memory usage, network interfaces, user details,
+  and system paths.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/os.js -->
diff --git a/doc/api/packages.md b/doc/api/packages.md
index a676cedf4a7eb6..beee5ecbab4d5c 100644
--- a/doc/api/packages.md
+++ b/doc/api/packages.md
@@ -4,6 +4,13 @@
 
 <!-- type=misc -->
 
+<!-- YAML
+llm_description: >
+  Defines how Node.js resolves and loads modules via fields like type,
+  exports, and imports. Controls module format, entry points, and package
+  encapsulation.
+-->
+
 <!-- YAML
 changes:
   - version:
diff --git a/doc/api/path.md b/doc/api/path.md
index f08bd86792355b..8aa963dde6eb47 100644
--- a/doc/api/path.md
+++ b/doc/api/path.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Provides utilities for working with file and directory paths across
+  different operating systems.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/path.js -->
diff --git a/doc/api/querystring.md b/doc/api/querystring.md
index f7f45d57d927ce..d9d2e038e7175a 100644
--- a/doc/api/querystring.md
+++ b/doc/api/querystring.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v0.1.25-->
 
+<!-- YAML
+llm_description: >
+  Parses and formats URL query strings, providing fast utilities for handling
+  key-value pairs.
+-->
+
 > Stability: 2 - Stable
 
 <!--name=querystring-->
diff --git a/doc/api/quic.md b/doc/api/quic.md
index d47a0413446acd..9c014ddd4bea1b 100644
--- a/doc/api/quic.md
+++ b/doc/api/quic.md
@@ -2,6 +2,8 @@
 
 <!-- introduced_in=v23.8.0-->
 
+<!-- llm_description: Provides an implementation of the QUIC protocol. -->
+
 <!-- YAML
 added: v23.8.0
 -->
diff --git a/doc/api/repl.md b/doc/api/repl.md
index c120bb25efff29..057d714b7fe700 100644
--- a/doc/api/repl.md
+++ b/doc/api/repl.md
@@ -2,6 +2,11 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Provides an interactive Read-Eval-Print-Loop (REPL) implementation.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/repl.js -->
diff --git a/doc/api/sqlite.md b/doc/api/sqlite.md
index 14f33fd26a1f3e..135ca8613f53e4 100644
--- a/doc/api/sqlite.md
+++ b/doc/api/sqlite.md
@@ -2,6 +2,13 @@
 
 <!--introduced_in=v22.5.0-->
 
+<!-- YAML
+llm_description: >
+  Provides synchronous APIs for working with SQLite databases, including
+  querying, transactions, backups, and change tracking. Enables in-process,
+  file-based SQL storage.
+-->
+
 <!-- YAML
 added: v22.5.0
 -->
diff --git a/doc/api/string_decoder.md b/doc/api/string_decoder.md
index 5d848cfb6d550b..f15b6a4f20de87 100644
--- a/doc/api/string_decoder.md
+++ b/doc/api/string_decoder.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Provides an API for decoding Buffer objects into strings while preserving
+  multi-byte UTF-8 and UTF-16 characters.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/string_decoder.js -->
diff --git a/doc/api/synopsis.md b/doc/api/synopsis.md
index dda2c5285dc605..7ebf4d6eae3d67 100644
--- a/doc/api/synopsis.md
+++ b/doc/api/synopsis.md
@@ -1,5 +1,11 @@
 # Usage and example
 
+<!-- YAML
+llm_description: >
+  Overview of basic Node.js usage via CLI. Illustrates how to run scripts and
+  provides a simple web server example.
+-->
+
 ## Usage
 
 <!--introduced_in=v0.10.0-->
diff --git a/doc/api/test.md b/doc/api/test.md
index 67af2b8fc8d3a9..dc1755f37615b1 100644
--- a/doc/api/test.md
+++ b/doc/api/test.md
@@ -2,6 +2,13 @@
 
 <!--introduced_in=v18.0.0-->
 
+<!-- YAML
+llm_description: >
+  Built-in framework for writing and running JavaScript tests. It includes a
+  command-line runner and offers comprehensive features such as mocking,
+  snapshot testing, and code coverage analysis.
+-->
+
 <!-- YAML
 added:
   - v18.0.0
diff --git a/doc/api/tls.md b/doc/api/tls.md
index a39b724b830b2a..ef4b8b11185dcf 100644
--- a/doc/api/tls.md
+++ b/doc/api/tls.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Implements Transport Layer Security (TLS) and Secure Socket Layer (SSL)
+  protocols using OpenSSL.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/tls.js -->
diff --git a/doc/api/tty.md b/doc/api/tty.md
index a7c4c3a48d8707..e4bb460b9ca5cb 100644
--- a/doc/api/tty.md
+++ b/doc/api/tty.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  The tty module handles terminal (TTY) interactions, providing classes to
+  manage readable and writable streams for terminal IO.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/tty.js -->
diff --git a/doc/api/typescript.md b/doc/api/typescript.md
index 642e3f26db7cb3..d6ad490ec95a0f 100644
--- a/doc/api/typescript.md
+++ b/doc/api/typescript.md
@@ -15,6 +15,12 @@ changes:
 
 <!--introduced_in=v22.6.0-->
 
+<!-- YAML
+llm_description: >
+  Provides lightweight TypeScript support in Node.js via type stripping.
+  Enables execution of .ts files without type checking or full compiler features.
+-->
+
 > Stability: 1.2 - Release candidate
 
 ## Enabling
diff --git a/doc/api/url.md b/doc/api/url.md
index ce6e1bd2434942..d6ea4aaf502e85 100644
--- a/doc/api/url.md
+++ b/doc/api/url.md
@@ -2,6 +2,11 @@
 
 <!--introduced_in=v0.10.0-->
 
+<!-- YAML
+llm_description: >
+  Provides utilities for parsing, constructing, and manipulating URLs.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/url.js -->
diff --git a/doc/api/v8.md b/doc/api/v8.md
index 90f8a815d26898..b1a776918f16bb 100644
--- a/doc/api/v8.md
+++ b/doc/api/v8.md
@@ -2,6 +2,12 @@
 
 <!--introduced_in=v4.0.0-->
 
+<!-- YAML
+llm_description: >
+  Exposes APIs that are specific to the version of V8 built into the Node.js
+  binary.
+-->
+
 <!-- source_link=lib/v8.js -->
 
 The `node:v8` module exposes APIs that are specific to the version of [V8][]
diff --git a/doc/api/worker_threads.md b/doc/api/worker_threads.md
index daa6f7be818714..d1d55dbeb1f820 100644
--- a/doc/api/worker_threads.md
+++ b/doc/api/worker_threads.md
@@ -2,6 +2,13 @@
 
 <!--introduced_in=v10.5.0-->
 
+<!-- YAML
+llm_description: >
+  Enables the use of threads to execute JavaScript in parallel. It is most
+  useful for performing CPU-intensive operations without blocking the main
+  application's event loop.
+-->
+
 > Stability: 2 - Stable
 
 <!-- source_link=lib/worker_threads.js -->