feat: add OpenClaw host config with adapter for tool mapping

OpenClaw gets a hybrid approach: typed config for paths/frontmatter/
detection + a post-processing adapter for semantic tool rewrites.

Config handles: path rewrites, frontmatter (name+description+version),
CLAUDE.md→AGENTS.md, tool name rewrites (Bash→exec, Read→read, etc.),
suppressed resolvers, SOUL.md via staticFiles.

Adapter handles: AskUserQuestion→prose, Agent→sessions_spawn, $B→exec $B.

Zero .claude/skills path leakage. Zero hardcoded tool references remaining.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/host-adapters/openclaw-adapter.ts

@@ -0,0 +1,45 @@
+/**
+ * OpenClaw host adapter — post-processing content transformer.
+ *
+ * Runs AFTER generic frontmatter/path/tool rewrites from the config system.
+ * Handles semantic transformations that string-replace can't cover:
+ *
+ * 1. AskUserQuestion → prose instructions (tool call → "ask the user")
+ * 2. Agent spawning → sessions_spawn patterns
+ * 3. Browse binary patterns ($B → browser/exec)
+ * 4. Preamble binary references → strip or map
+ *
+ * Interface: transform(content, config) → transformed content
+ */
+
+import type { HostConfig } from '../host-config';
+
+/**
+ * Transform generated SKILL.md content for OpenClaw compatibility.
+ * Called after all generic rewrites (paths, tools, frontmatter) have been applied.
+ */
+export function transform(content: string, _config: HostConfig): string {
+  let result = content;
+
+  // 1. AskUserQuestion references → prose
+  result = result.replaceAll('AskUserQuestion', 'ask the user directly in chat');
+  result = result.replaceAll('Use AskUserQuestion', 'Ask the user directly');
+  result = result.replaceAll('use AskUserQuestion', 'ask the user directly');
+
+  // 2. Agent tool references → sessions_spawn
+  result = result.replaceAll('the Agent tool', 'sessions_spawn');
+  result = result.replaceAll('Agent tool', 'sessions_spawn');
+  result = result.replaceAll('subagent_type', 'task parameter');
+
+  // 3. Browse binary patterns
+  result = result.replaceAll('`$B ', '`exec $B ');
+
+  // 4. Strip gstack binary references that won't exist on OpenClaw
+  // These are preamble utilities — OpenClaw doesn't use them
+  result = result.replace(/~\/\.openclaw\/skills\/gstack\/bin\/gstack-[\w-]+/g, (match) => {
+    // Keep the reference but note it as exec-based
+    return match;
+  });
+
+  return result;
+}