feat: Enhance Marketplace and Skill Management UI with improved error handling and user feedback

- Updated MarketplaceDrawer to include security notes and manual installation hints.
- Refactored SkillDetailDrawer to display default icons for skills.
- Simplified SkillListItem to use default icons for better readability.
- Integrated gateway status checks and warnings in SkillsPage for improved user awareness.
- Enhanced error handling for skill installation and fetching, providing clearer feedback to users.
- Added new translations for error messages and gateway warnings to improve localization support.

build/preinstalled-skills/self-improving-agent/hooks/openclaw/HOOK.md

@@ -0,0 +1,23 @@
+---
+name: self-improvement
+description: "Injects self-improvement reminder during agent bootstrap"
+metadata: {"openclaw":{"emoji":"🧠","events":["agent:bootstrap"]}}
+---
+
+# Self-Improvement Hook
+
+Injects a reminder to evaluate learnings during agent bootstrap.
+
+## What It Does
+
+- Fires on `agent:bootstrap` (before workspace files are injected)
+- Adds a reminder block to check `.learnings/` for relevant entries
+- Prompts the agent to log corrections, errors, and discoveries
+
+## Configuration
+
+No configuration needed. Enable with:
+
+```bash
+openclaw hooks enable self-improvement
+```

build/preinstalled-skills/self-improving-agent/hooks/openclaw/handler.js

@@ -0,0 +1,112 @@
+/**
+ * Self-Improvement Hook for OpenClaw
+ * 
+ * Injects a reminder to evaluate learnings during agent bootstrap.
+ * Fires on agent:bootstrap event before workspace files are injected.
+ */
+
+const REMINDER_NAME = 'SELF_IMPROVEMENT_REMINDER.md';
+const REMINDER_PATH = REMINDER_NAME;
+
+const REMINDER_CONTENT = `
+## Self-Improvement Reminder
+
+After completing tasks, evaluate whether any learnings should be captured.
+
+Only log if this repo or workspace is using the self-improvement skill.
+
+Before logging:
+- Create only missing \`.learnings/\` files; never overwrite existing content
+- Do not log secrets, tokens, private keys, environment variables, or raw transcripts
+- Prefer short summaries or redacted excerpts over full command output
+
+**Log when:**
+- User corrects you → \`.learnings/LEARNINGS.md\`
+- Command/operation fails → \`.learnings/ERRORS.md\`
+- User wants missing capability → \`.learnings/FEATURE_REQUESTS.md\`
+- You discover your knowledge was wrong → \`.learnings/LEARNINGS.md\`
+- You find a better approach → \`.learnings/LEARNINGS.md\`
+
+**Promote when pattern is proven:**
+- Behavioral patterns → \`SOUL.md\`
+- Workflow improvements → \`AGENTS.md\`
+- Tool gotchas → \`TOOLS.md\`
+
+Keep entries simple: date, title, what happened, and what to do differently.
+`.trim();
+
+function isObject(value) {
+  return !!value && typeof value === 'object';
+}
+
+function isInjectedReminderFile(value) {
+  if (!isObject(value) || value.path !== REMINDER_PATH) {
+    return false;
+  }
+
+  return (
+    value.virtual === true ||
+    value.content === REMINDER_CONTENT
+  );
+}
+
+const handler = async (event) => {
+  // Safety checks for event structure
+  if (!event || typeof event !== 'object') {
+    return;
+  }
+
+  // Only handle agent:bootstrap events
+  if (event.type !== 'agent' || event.action !== 'bootstrap') {
+    return;
+  }
+
+  // Safety check for context
+  if (!event.context || typeof event.context !== 'object') {
+    return;
+  }
+
+  // Skip sub-agent sessions to avoid bootstrap issues
+  // Sub-agents have sessionKey patterns like "agent:main:subagent:..."
+  const sessionKey = event.sessionKey || '';
+  if (sessionKey.includes(':subagent:')) {
+    return;
+  }
+
+  // Inject the reminder as a virtual bootstrap file
+  // Check that bootstrapFiles is an array before pushing
+  if (Array.isArray(event.context.bootstrapFiles)) {
+    const occupiedByOtherFile = event.context.bootstrapFiles.some(
+      (file) => isObject(file) && file.path === REMINDER_PATH && !isInjectedReminderFile(file),
+    );
+    if (occupiedByOtherFile) {
+      return;
+    }
+
+    const cleanedBootstrapFiles = event.context.bootstrapFiles.filter(
+      (file, index, files) =>
+        !isInjectedReminderFile(file) ||
+        files.findIndex((candidate) => isInjectedReminderFile(candidate)) === index,
+    );
+
+    const reminderFile = {
+      name: REMINDER_NAME,
+      path: REMINDER_PATH,
+      content: REMINDER_CONTENT,
+      missing: false,
+      virtual: true,
+    };
+
+    const existingIndex = cleanedBootstrapFiles.findIndex((file) => isInjectedReminderFile(file));
+    if (existingIndex === -1) {
+      cleanedBootstrapFiles.push(reminderFile);
+    } else {
+      cleanedBootstrapFiles[existingIndex] = reminderFile;
+    }
+
+    event.context.bootstrapFiles = cleanedBootstrapFiles;
+  }
+};
+
+module.exports = handler;
+module.exports.default = handler;

build/preinstalled-skills/self-improving-agent/hooks/openclaw/handler.ts

@@ -0,0 +1,111 @@
+/**
+ * Self-Improvement Hook for OpenClaw
+ * 
+ * Injects a reminder to evaluate learnings during agent bootstrap.
+ * Fires on agent:bootstrap event before workspace files are injected.
+ */
+
+import type { HookHandler } from 'openclaw/hooks';
+
+const REMINDER_NAME = 'SELF_IMPROVEMENT_REMINDER.md';
+const REMINDER_PATH = REMINDER_NAME;
+
+const REMINDER_CONTENT = `## Self-Improvement Reminder
+
+After completing tasks, evaluate whether any learnings should be captured.
+
+Only log if this repo or workspace is using the self-improvement skill.
+
+Before logging:
+- Create only missing \`.learnings/\` files; never overwrite existing content
+- Do not log secrets, tokens, private keys, environment variables, or raw transcripts
+- Prefer short summaries or redacted excerpts over full command output
+
+**Log when:**
+- User corrects you → \`.learnings/LEARNINGS.md\`
+- Command/operation fails → \`.learnings/ERRORS.md\`
+- User wants missing capability → \`.learnings/FEATURE_REQUESTS.md\`
+- You discover your knowledge was wrong → \`.learnings/LEARNINGS.md\`
+- You find a better approach → \`.learnings/LEARNINGS.md\`
+
+**Promote when pattern is proven:**
+- Behavioral patterns → \`SOUL.md\`
+- Workflow improvements → \`AGENTS.md\`
+- Tool gotchas → \`TOOLS.md\`
+
+Keep entries simple: date, title, what happened, and what to do differently.`;
+
+function isObject(value: unknown): value is Record<string, unknown> {
+  return !!value && typeof value === 'object';
+}
+
+function isInjectedReminderFile(value: unknown): boolean {
+  if (!isObject(value) || value.path !== REMINDER_PATH) {
+    return false;
+  }
+
+  return (
+    value.virtual === true ||
+    value.content === REMINDER_CONTENT
+  );
+}
+
+const handler: HookHandler = async (event) => {
+  // Safety checks for event structure
+  if (!event || typeof event !== 'object') {
+    return;
+  }
+
+  // Only handle agent:bootstrap events
+  if (event.type !== 'agent' || event.action !== 'bootstrap') {
+    return;
+  }
+
+  // Safety check for context
+  if (!event.context || typeof event.context !== 'object') {
+    return;
+  }
+
+  // Skip sub-agent sessions to avoid bootstrap issues
+  // Sub-agents have sessionKey patterns like "agent:main:subagent:..."
+  const sessionKey = event.sessionKey || '';
+  if (sessionKey.includes(':subagent:')) {
+    return;
+  }
+
+  // Inject the reminder as a virtual bootstrap file
+  // Check that bootstrapFiles is an array before pushing
+  if (Array.isArray(event.context.bootstrapFiles)) {
+    const occupiedByOtherFile = event.context.bootstrapFiles.some(
+      (file) => isObject(file) && file.path === REMINDER_PATH && !isInjectedReminderFile(file),
+    );
+    if (occupiedByOtherFile) {
+      return;
+    }
+
+    const cleanedBootstrapFiles = event.context.bootstrapFiles.filter(
+      (file, index, files) =>
+        !isInjectedReminderFile(file) ||
+        files.findIndex((candidate) => isInjectedReminderFile(candidate)) === index,
+    );
+
+    const reminderFile = {
+      name: REMINDER_NAME,
+      path: REMINDER_PATH,
+      content: REMINDER_CONTENT,
+      missing: false,
+      virtual: true,
+    };
+
+    const existingIndex = cleanedBootstrapFiles.findIndex((file) => isInjectedReminderFile(file));
+    if (existingIndex === -1) {
+      cleanedBootstrapFiles.push(reminderFile);
+    } else {
+      cleanedBootstrapFiles[existingIndex] = reminderFile;
+    }
+
+    event.context.bootstrapFiles = cleanedBootstrapFiles;
+  }
+};
+
+export default handler;