diff --git a/src/plugins/bundled-package-channel-metadata.ts b/src/plugins/bundled-package-channel-metadata.ts
index 5decfc3e8e9..37e5138868a 100644
--- a/src/plugins/bundled-package-channel-metadata.ts
+++ b/src/plugins/bundled-package-channel-metadata.ts
@@ -1,10 +1,12 @@
 import { listChannelCatalogEntries } from "./channel-catalog-registry.js";
 import type { PluginPackageChannel } from "./manifest.js";
 
+/** Lists channel metadata contributed by bundled package manifests. */
 export function listBundledPackageChannelMetadata(): readonly PluginPackageChannel[] {
   return listChannelCatalogEntries({ origin: "bundled" }).map((entry) => entry.channel);
 }
 
+/** Finds bundled package channel metadata by id or alias. */
 export function findBundledPackageChannelMetadata(
   channelId: string,
 ): PluginPackageChannel | undefined {
diff --git a/src/plugins/bundled-plugin-metadata.ts b/src/plugins/bundled-plugin-metadata.ts
index 00e0712e266..04b1add975c 100644
--- a/src/plugins/bundled-plugin-metadata.ts
+++ b/src/plugins/bundled-plugin-metadata.ts
@@ -37,6 +37,7 @@ type BundledPluginPathPair = {
   built: string;
 };
 
+/** Metadata collected from a bundled plugin package and manifest. */
 export type BundledPluginMetadata = {
   dirName: string;
   idHint: string;
@@ -168,6 +169,7 @@ function collectBundledPluginMetadata(
   return entries;
 }
 
+/** Lists bundled plugin metadata from source or built package layouts. */
 export function listBundledPluginMetadata(params?: {
   rootDir?: string;
   scanDir?: string;
@@ -190,6 +192,7 @@ export function listBundledPluginMetadata(params?: {
   return metadata;
 }
 
+/** Finds bundled plugin metadata by manifest id. */
 export function findBundledPluginMetadataById(
   pluginId: string,
   params?: {
@@ -202,6 +205,7 @@ export function findBundledPluginMetadataById(
   return listBundledPluginMetadata(params).find((entry) => entry.manifest.id === pluginId);
 }
 
+/** Resolves the source directory for a bundled plugin in the current workspace. */
 export function resolveBundledPluginWorkspaceSourcePath(params: {
   rootDir: string;
   scanDir?: string;
@@ -296,6 +300,7 @@ function listBundledPluginEntrySearchPaths(
   return uniqueStrings(paths);
 }
 
+/** Resolves a generated runtime path for a bundled plugin entry. */
 export function resolveBundledPluginGeneratedPath(
   rootDir: string,
   entry: BundledPluginPathPair | undefined,
@@ -345,6 +350,7 @@ function resolveBundledPluginEntryCandidate(baseDir: string, entryPath: string):
   return candidate;
 }
 
+/** Resolves the repo entry path for a bundled plugin, preferring source unless requested. */
 export function resolveBundledPluginRepoEntryPath(params: {
   rootDir: string;
   pluginId: string;
diff --git a/src/plugins/channel-presence-policy.ts b/src/plugins/channel-presence-policy.ts
index 93c290b272c..7e592bd767f 100644
--- a/src/plugins/channel-presence-policy.ts
+++ b/src/plugins/channel-presence-policy.ts
@@ -28,11 +28,13 @@ import { loadPluginManifestRegistryForPluginRegistry } from "./plugin-registry-c
 
 const IGNORED_CHANNEL_CONFIG_KEYS = new Set(["defaults", "modelByChannel"]);
 
+/** Source classes that can make a channel appear configured for read-only scopes. */
 export type ConfiguredChannelPresenceSource =
   | "explicit-config"
   | Exclude<ChannelPresenceSignalSource, "config">
   | "manifest-env";
 
+/** Reasons a configured channel signal is not effective. */
 export type ConfiguredChannelBlockedReason =
   | "plugins-disabled"
   | "blocked-by-denylist"
@@ -44,6 +46,7 @@ export type ConfiguredChannelBlockedReason =
   | "no-channel-owner"
   | "not-activated";
 
+/** Policy evaluation row for one configured channel signal. */
 export type ConfiguredChannelPresencePolicyEntry = {
   channelId: string;
   sources: ConfiguredChannelPresenceSource[];
@@ -70,6 +73,7 @@ function hasNonEmptyEnvValue(env: NodeJS.ProcessEnv, key: string): boolean {
   return typeof value === "string" && value.trim().length > 0;
 }
 
+/** True when config contains meaningful enabled channel settings. */
 export function hasExplicitChannelConfig(params: {
   config: OpenClawConfig;
   channelId: string;
@@ -89,6 +93,7 @@ export function hasExplicitChannelConfig(params: {
   return enabled === true || hasMeaningfulChannelConfig(entry);
 }
 
+/** Lists explicitly configured channel ids, excluding global channel config keys. */
 export function listExplicitConfiguredChannelIdsForConfig(config: OpenClawConfig): string[] {
   const channels = config.channels;
   if (!channels || typeof channels !== "object" || Array.isArray(channels)) {
@@ -182,6 +187,7 @@ function isChannelPluginEligibleForScopedOwnership(params: {
   rootConfig: OpenClawConfig;
   channelId?: string;
 }): boolean {
+  // Explicit config can activate bundled channel owners even under restrictive allowlists.
   const allowRestrictiveAllowlistBypass =
     params.channelId !== undefined &&
     isBundledManifestOwner(params.plugin) &&
@@ -221,6 +227,7 @@ function evaluateEffectiveChannelPlugin(params: {
   config: OpenClawConfig;
   activationSource: ReturnType<typeof createPluginActivationSource>;
 }): { effective: boolean; pluginId: string; blockedReason?: ConfiguredChannelBlockedReason } {
+  // Bundled channels with explicit config are effective before default enablement checks.
   const explicitBundledChannelConfig =
     isBundledManifestOwner(params.plugin) &&
     hasExplicitChannelConfig({
@@ -319,6 +326,7 @@ function loadInstalledChannelManifestRecords(params: {
   }).plugins;
 }
 
+/** Resolves effective configured-channel policy rows from config, auth state, env, and manifests. */
 export function resolveConfiguredChannelPresencePolicy(params: {
   config: OpenClawConfig;
   activationSourceConfig?: OpenClawConfig;
@@ -406,6 +414,7 @@ export function resolveConfiguredChannelPresencePolicy(params: {
   return entries;
 }
 
+/** Lists effective channel ids available to read-only scoped discovery. */
 export function listConfiguredChannelIdsForReadOnlyScope(
   params: Parameters<typeof resolveConfiguredChannelPresencePolicy>[0],
 ): string[] {
@@ -414,12 +423,14 @@ export function listConfiguredChannelIdsForReadOnlyScope(
     .map((entry) => entry.channelId);
 }
 
+/** True when read-only scoped discovery has any effective configured channel. */
 export function hasConfiguredChannelsForReadOnlyScope(
   params: Parameters<typeof resolveConfiguredChannelPresencePolicy>[0],
 ): boolean {
   return listConfiguredChannelIdsForReadOnlyScope(params).length > 0;
 }
 
+/** Lists channel ids that should be announced as configured for operators. */
 export function listConfiguredAnnounceChannelIdsForConfig(params: {
   config: OpenClawConfig;
   activationSourceConfig?: OpenClawConfig;
@@ -498,6 +509,7 @@ function resolveScopedChannelOwnerPluginIds(params: {
     .toSorted((left, right) => left.localeCompare(right));
 }
 
+/** Resolves plugin ids discoverable for scoped channel activation. */
 export function resolveDiscoverableScopedChannelPluginIds(params: {
   config: OpenClawConfig;
   activationSourceConfig?: OpenClawConfig;
@@ -509,6 +521,7 @@ export function resolveDiscoverableScopedChannelPluginIds(params: {
   return resolveScopedChannelOwnerPluginIds(params);
 }
 
+/** Resolves plugin ids that own currently configured channels. */
 export function resolveConfiguredChannelPluginIds(params: {
   config: OpenClawConfig;
   activationSourceConfig?: OpenClawConfig;
diff --git a/src/plugins/channel-validation.ts b/src/plugins/channel-validation.ts
index 3ffa3a71116..3445ef490ab 100644
--- a/src/plugins/channel-validation.ts
+++ b/src/plugins/channel-validation.ts
@@ -50,6 +50,7 @@ function collectMissingChannelMetaFields(meta?: Partial<ChannelMeta> | null): st
   return missing;
 }
 
+/** Validates and normalizes a channel plugin registration before runtime catalog insertion. */
 export function normalizeRegisteredChannelPlugin(params: {
   pluginId: string;
   source: string;
diff --git a/src/plugins/codex-app-server-extension-types.ts b/src/plugins/codex-app-server-extension-types.ts
index 492094e4ba5..a714ed2f733 100644
--- a/src/plugins/codex-app-server-extension-types.ts
+++ b/src/plugins/codex-app-server-extension-types.ts
@@ -1,5 +1,6 @@
 import type { AgentToolResult } from "../agents/runtime/index.js";
 
+/** Tool-result event emitted to Codex app-server plugin extensions. */
 export type CodexAppServerToolResultEvent = {
   threadId: string;
   turnId: string;
@@ -9,6 +10,7 @@ export type CodexAppServerToolResultEvent = {
   result: AgentToolResult<unknown>;
 };
 
+/** Session context passed with Codex app-server extension events. */
 export type CodexAppServerExtensionContext = {
   agentId?: string;
   sessionId?: string;
@@ -16,10 +18,12 @@ export type CodexAppServerExtensionContext = {
   runId?: string;
 };
 
+/** Optional replacement result returned by a Codex app-server extension handler. */
 export type CodexAppServerToolResultHandlerResult = {
   result: AgentToolResult<unknown>;
 };
 
+/** Runtime event surface exposed to Codex app-server extension factories. */
 export type CodexAppServerExtensionRuntime = {
   on: (
     event: "tool_result",
@@ -33,6 +37,7 @@ export type CodexAppServerExtensionRuntime = {
   ) => void;
 };
 
+/** Factory signature for Codex app-server plugin extensions. */
 export type CodexAppServerExtensionFactory = (
   runtime: CodexAppServerExtensionRuntime,
 ) => Promise<void> | void;
diff --git a/src/plugins/http-path.ts b/src/plugins/http-path.ts
index 1dfef3967ee..b7b54a96080 100644
--- a/src/plugins/http-path.ts
+++ b/src/plugins/http-path.ts
@@ -1,5 +1,6 @@
 import { normalizeOptionalString } from "@openclaw/normalization-core/string-coerce";
 
+/** Normalizes plugin HTTP paths to leading-slash form with optional fallback. */
 export function normalizePluginHttpPath(
   path?: string | null,
   fallback?: string | null,
diff --git a/src/plugins/install-security-scan.ts b/src/plugins/install-security-scan.ts
index 2993f1af517..264658edd76 100644
--- a/src/plugins/install-security-scan.ts
+++ b/src/plugins/install-security-scan.ts
@@ -11,6 +11,7 @@ type InstallScanLogger = {
   warn?: (message: string) => void;
 };
 
+/** Result returned by plugin/skill install security policy checks. */
 export type InstallSecurityScanResult = {
   blocked?: {
     code?: "security_scan_blocked" | "security_scan_failed";
@@ -18,8 +19,10 @@ export type InstallSecurityScanResult = {
   };
 };
 
+/** Plugin install request kinds that share install policy without skill install semantics. */
 export type PluginInstallRequestKind = Exclude<InstallPolicyRequestKind, "skill-install">;
 
+/** Skill install metadata shape passed into shared install policy evaluation. */
 export type SkillInstallSpecMetadata = {
   id?: string;
   kind: "brew" | "node" | "go" | "uv" | "download";
@@ -36,16 +39,19 @@ export type SkillInstallSpecMetadata = {
   targetDir?: string;
 };
 
+/** Package executable metadata used to scope dependency and entrypoint scans. */
 export type PackageExecutableScanMetadata = {
   runtimeExtensions?: readonly string[];
   runtimeSetupEntry?: string;
   setupEntry?: string;
 };
 
+/** Lazily loads install scanning so normal plugin startup avoids policy/runtime imports. */
 async function loadInstallSecurityScanRuntime() {
   return await import("./install-security-scan.runtime.js");
 }
 
+/** Scans an unpacked bundle source before plugin install/update. */
 export async function scanBundleInstallSource(
   params: InstallSafetyOverrides & {
     config?: OpenClawConfig;
@@ -63,6 +69,7 @@ export async function scanBundleInstallSource(
   return await scanBundleInstallSourceRuntime(params);
 }
 
+/** Scans a package source directory and executable metadata before install/update. */
 export async function scanPackageInstallSource(
   params: InstallSafetyOverrides & {
     config?: OpenClawConfig;
@@ -84,6 +91,7 @@ export async function scanPackageInstallSource(
   return await scanPackageInstallSourceRuntime(params);
 }
 
+/** Scans the installed package dependency tree after npm resolution. */
 export async function scanInstalledPackageDependencyTree(params: {
   additionalPackageDirs?: string[];
   allowManagedNpmRootPackagePeerSymlinks?: boolean;
@@ -103,6 +111,7 @@ export async function scanInstalledPackageDependencyTree(params: {
   return await scanInstalledPackageDependencyTreeRuntime(params);
 }
 
+/** Scans one file-based plugin install source. */
 export async function scanFileInstallSource(
   params: InstallSafetyOverrides & {
     config?: OpenClawConfig;
@@ -118,6 +127,7 @@ export async function scanFileInstallSource(
   return await scanFileInstallSourceRuntime(params);
 }
 
+/** Runs npm install policy checks before package install side effects. */
 export async function preflightPluginNpmInstallPolicy(params: {
   config?: OpenClawConfig;
   logger: InstallScanLogger;
@@ -133,6 +143,7 @@ export async function preflightPluginNpmInstallPolicy(params: {
   return await preflightPluginNpmInstallPolicyRuntime(params);
 }
 
+/** Runs git install policy checks before plugin install side effects. */
 export async function preflightPluginGitInstallPolicy(params: {
   config?: OpenClawConfig;
   logger: InstallScanLogger;
@@ -146,6 +157,7 @@ export async function preflightPluginGitInstallPolicy(params: {
   return await preflightPluginGitInstallPolicyRuntime(params);
 }
 
+/** Evaluates shared install policy for skill-managed dependency installs. */
 export async function evaluateSkillInstallPolicy(params: {
   config?: OpenClawConfig;
   installId: string;
diff --git a/src/plugins/interactive-registry.ts b/src/plugins/interactive-registry.ts
index 33352fdb614..5df32caa622 100644
--- a/src/plugins/interactive-registry.ts
+++ b/src/plugins/interactive-registry.ts
@@ -13,11 +13,13 @@ import {
 } from "./interactive-state.js";
 import type { PluginInteractiveHandlerRegistration } from "./types.js";
 
+/** Registration result for plugin interactive namespace handlers. */
 export type InteractiveRegistrationResult = {
   ok: boolean;
   error?: string;
 };
 
+/** Resolves a channel payload to a registered plugin interactive namespace handler. */
 export function resolvePluginInteractiveNamespaceMatch(
   channel: string,
   data: string,
@@ -29,6 +31,7 @@ export function resolvePluginInteractiveNamespaceMatch(
   });
 }
 
+/** Registers one plugin interactive namespace for a channel. */
 export function registerPluginInteractiveHandler(
   pluginId: string,
   registration: PluginInteractiveHandlerRegistration,
@@ -59,14 +62,17 @@ export function registerPluginInteractiveHandler(
   return { ok: true };
 }
 
+/** Clears all active plugin interactive handlers. */
 export function clearPluginInteractiveHandlers(): void {
   clearPluginInteractiveHandlersState();
 }
 
+/** Clears stored plugin interactive handler registrations. */
 export function clearPluginInteractiveHandlerRegistrations(): void {
   clearPluginInteractiveHandlerRegistrationsState();
 }
 
+/** Clears active interactive handlers owned by one plugin. */
 export function clearPluginInteractiveHandlersForPlugin(pluginId: string): void {
   const interactiveHandlers = getPluginInteractiveHandlersState();
   for (const [key, value] of interactiveHandlers.entries()) {
@@ -76,10 +82,12 @@ export function clearPluginInteractiveHandlersForPlugin(pluginId: string): void
   }
 }
 
+/** Lists active plugin interactive handlers. */
 export function listPluginInteractiveHandlers(): RegisteredInteractiveHandler[] {
   return Array.from(getPluginInteractiveHandlersState().values());
 }
 
+/** Restores active plugin interactive handlers from a saved registry snapshot. */
 export function restorePluginInteractiveHandlers(
   registrations: readonly RegisteredInteractiveHandler[],
 ): void {
diff --git a/src/plugins/path-safety.ts b/src/plugins/path-safety.ts
index bfa2c2202f5..bbaad09bc83 100644
--- a/src/plugins/path-safety.ts
+++ b/src/plugins/path-safety.ts
@@ -1,3 +1,4 @@
+/** Plugin-local re-export of shared path safety helpers for plugin install/runtime code. */
 export {
   isNotFoundPathError,
   hasNodeErrorCode,
diff --git a/src/plugins/provider-auth-choice.runtime.ts b/src/plugins/provider-auth-choice.runtime.ts
index 1faf872efbe..925a2e78a72 100644
--- a/src/plugins/provider-auth-choice.runtime.ts
+++ b/src/plugins/provider-auth-choice.runtime.ts
@@ -12,24 +12,28 @@ type RunProviderModelSelectedHook =
 type ResolvePluginProviders = typeof import("./providers.runtime.js").resolvePluginProviders;
 type ResolvePluginSetupProvider = typeof import("./setup-registry.js").resolvePluginSetupProvider;
 
+/** Runtime wrapper for provider plugin wizard choice resolution. */
 export function resolveProviderPluginChoice(
   ...args: Parameters<ResolveProviderPluginChoice>
 ): ReturnType<ResolveProviderPluginChoice> {
   return resolveProviderPluginChoiceImpl(...args);
 }
 
+/** Runtime wrapper for provider model-selected hook dispatch. */
 export function runProviderModelSelectedHook(
   ...args: Parameters<RunProviderModelSelectedHook>
 ): ReturnType<RunProviderModelSelectedHook> {
   return runProviderModelSelectedHookImpl(...args);
 }
 
+/** Runtime wrapper for registered model provider discovery. */
 export function resolvePluginProviders(
   ...args: Parameters<ResolvePluginProviders>
 ): ReturnType<ResolvePluginProviders> {
   return resolvePluginProvidersImpl(...args);
 }
 
+/** Runtime wrapper for plugin setup-provider discovery. */
 export function resolvePluginSetupProvider(
   ...args: Parameters<ResolvePluginSetupProvider>
 ): ReturnType<ResolvePluginSetupProvider> {
diff --git a/src/plugins/provider-auth-mode.ts b/src/plugins/provider-auth-mode.ts
index 183e2b36257..bc2ab0abef6 100644
--- a/src/plugins/provider-auth-mode.ts
+++ b/src/plugins/provider-auth-mode.ts
@@ -1,6 +1,7 @@
 import type { WizardPrompter } from "../wizard/prompts.js";
 import type { SecretInputMode } from "./provider-auth-types.js";
 
+/** Prompt copy overrides for provider secret input mode selection. */
 export type SecretInputModePromptCopy = {
   modeMessage?: string;
   plaintextLabel?: string;
@@ -9,6 +10,7 @@ export type SecretInputModePromptCopy = {
   refHint?: string;
 };
 
+/** Resolves provider secret input mode from explicit option or wizard selection. */
 export async function resolveSecretInputModeForEnvSelection(params: {
   prompter: Pick<WizardPrompter, "select">;
   explicitMode?: SecretInputMode;
diff --git a/src/plugins/provider-auth-types.ts b/src/plugins/provider-auth-types.ts
index c26ba4778d8..c33ac3d9dd5 100644
--- a/src/plugins/provider-auth-types.ts
+++ b/src/plugins/provider-auth-types.ts
@@ -1 +1,2 @@
+/** Provider secret input modes: inline plaintext or external secret reference. */
 export type SecretInputMode = "plaintext" | "ref"; // pragma: allowlist secret
diff --git a/src/plugins/provider-config-owner.ts b/src/plugins/provider-config-owner.ts
index ea9b97f4a72..83b6f4074b3 100644
--- a/src/plugins/provider-config-owner.ts
+++ b/src/plugins/provider-config-owner.ts
@@ -12,6 +12,7 @@ const CORE_BUILT_IN_MODEL_APIS = new Set([
   "openai-responses",
 ]);
 
+/** Returns the plugin API id that owns a provider config when it is not core built-in. */
 export function resolveProviderConfigApiOwnerHint(params: {
   provider: string;
   config?: OpenClawConfig;
diff --git a/src/plugins/public-surface-runtime.ts b/src/plugins/public-surface-runtime.ts
index 00524b9c4f0..11668b3d8f8 100644
--- a/src/plugins/public-surface-runtime.ts
+++ b/src/plugins/public-surface-runtime.ts
@@ -12,6 +12,7 @@ export const PUBLIC_SURFACE_SOURCE_EXTENSIONS = [
   ".cjs",
 ] as const;
 
+/** Normalizes a bundled public artifact subpath and rejects traversal/absolute paths. */
 export function normalizeBundledPluginArtifactSubpath(artifactBasename: string): string {
   if (
     path.posix.isAbsolute(artifactBasename) ||
@@ -39,6 +40,7 @@ export function normalizeBundledPluginArtifactSubpath(artifactBasename: string):
   return normalized;
 }
 
+/** Normalizes a bundled plugin directory name and rejects path-like values. */
 export function normalizeBundledPluginDirName(dirName: string): string {
   const normalized = dirName.trim();
   if (
@@ -54,6 +56,7 @@ export function normalizeBundledPluginDirName(dirName: string): string {
   return normalized;
 }
 
+/** Resolves a source-tree public surface artifact path for bundled plugin development. */
 export function resolveBundledPluginSourcePublicSurfacePath(params: {
   sourceRoot: string;
   dirName: string;
@@ -153,6 +156,7 @@ function resolvePublicSurfaceFromBundledDir(params: {
   );
 }
 
+/** Resolves a bundled plugin public surface artifact across source, dist, and package layouts. */
 export function resolveBundledPluginPublicSurfacePath(params: {
   rootDir: string;
   dirName: string;