agent-claw: automated task changes

agentclaw/app/agent_claw_main/prompt_builder.py

@@ -0,0 +1,44 @@
+import os
+import boto3
+
+# Cache: built once per warm session
+_system_prompt: str | None = None
+
+
+def build_system_prompt() -> str:
+    """Build system prompt from S3 workspace files (cached for warm session)."""
+    global _system_prompt
+    if _system_prompt is not None:
+        return _system_prompt
+
+    bucket = os.environ.get('WORKSPACE_BUCKET_NAME', '') or 'agent-claw-workspace-495395224548'
+    print(f'[prompt_builder] Loading from bucket: {bucket!r}')
+
+    if not bucket:
+        print('[prompt_builder] WARNING: WORKSPACE_BUCKET_NAME not set!')
+        _system_prompt = 'You are a helpful personal assistant.'
+        return _system_prompt
+
+    s3 = boto3.client('s3')
+    parts = []
+
+    for fname in ['SOUL.md', 'AGENTS.md', 'IDENTITY.md', 'USER.md', 'MEMORY.md', 'TOOLS.md']:
+        try:
+            obj = s3.get_object(Bucket=bucket, Key=fname)
+            content = obj['Body'].read().decode('utf-8')
+            parts.append(f'## {fname}\n{content}')
+            print(f'[prompt_builder] Loaded {fname} ({len(content)} bytes)')
+        except Exception as e:
+            print(f'[prompt_builder] Failed to load {fname}: {e}')
+
+    parts.append('## Runtime\nRuntime: agent-claw | host=AgentCore | model=bedrock-claude-sonnet | channel=telegram\nCurrent date/time is provided by the system. Timezone: America/Chicago.')
+
+    _system_prompt = '\n\n---\n\n'.join(parts)
+    print(f'[prompt_builder] System prompt built: {len(_system_prompt)} chars')
+    return _system_prompt
+
+
+def invalidate_prompt() -> None:
+    """Force rebuild of system prompt on next invocation (call after workspace write)."""
+    global _system_prompt
+    _system_prompt = None