Agentica-Claude Code Proxy Integration

Use this skill when developing or debugging the Agentica-Claude proxy integration.

When to Use

• Setting up Agentica agents to use Claude Code tools
• Debugging agent hallucination issues
• Fixing permission errors in file operations
• Understanding the REPL response format

Architecture Overview

Agentica Agent → S_M_BASE_URL → Claude Proxy → claude -p → Claude CLI (with tools)
                 (localhost:2345)   (localhost:8080)

Critical Requirements

1. --allowedTools Flag (REQUIRED)

Claude CLI in -p mode restricts file operations. You MUST add:

subprocess.run([
    "claude", "-p", prompt,
    "--append-system-prompt", system_prompt,
    "--allowedTools", "Read", "Write", "Edit", "Bash",  # REQUIRED
])

Without this, agents will report "permission denied" for Write/Edit operations.

2. SSE Streaming Format (REQUIRED)

Agentica expects SSE streaming, not plain JSON:

# Response format
yield f"data: {json.dumps(chunk)}\n\n"
yield "data: [DONE]\n\n"

3. REPL Response Format (REQUIRED)

Agents MUST return results as Python code blocks with a return statement:

return "your result here"

Agentica's REPL parser extracts code between ```python and ```.

Anti-Hallucination Prompt Engineering

Agents will hallucinate success without actually using tools unless you explicitly warn them:

## ANTI-HALLUCINATION WARNING

**STOP AND READ THIS CAREFULLY:**

You have access to these tools: Read, Write, Edit, Bash

When the task asks you to create/modify/run something:
1. FIRST: Actually invoke the tool (Read, Write, Edit, or Bash)
2. SECOND: Wait for the tool result
3. THIRD: Then return your answer based on what actually happened

**DO NOT** skip the tool invocation and just claim success!

If you didn't invoke a tool, you CANNOT claim the action succeeded.

Path Sandboxing

Both Claude Code and Agentica have sandboxes: