agentica-claude-proxy

SKILL.md

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:

/tmp/ paths are blocked by Claude Code

Files outside project directory blocked by Agentica

Solution: Use project-relative paths like workspace/ instead of /tmp/

Debugging

Check Agent Logs

cat logs/agent-<N>.log

Note: Logs only show final conversational response, not tool invocations.

Test Proxy Directly

curl -s http://localhost:8080/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{"model": "claude", "messages": [{"role": "user", "content": "Create file at workspace/test.txt"}], "stream": false}'

Verify File Operations

# After agent claims to create file
ls -la workspace/test.txt
cat workspace/test.txt

Server Commands

Start Servers

# Terminal 1: Proxy
uv run python scripts/agentica/claude_proxy.py --port 8080

# Terminal 2: Agentica Server
cd workspace/agentica-research/agentica-server
INFERENCE_ENDPOINT_URL=http://localhost:8080/v1/chat/completions uv run agentica-server --port 2345

Use Swarm

S_M_BASE_URL=http://localhost:2345 uv run python your_script.py

Health Checks

curl http://localhost:8080/health  # Proxy
curl http://localhost:2345/health  # Agentica

Reference Files

Proxy implementation: scripts/agentica/claude_proxy.py

REPL_BASELINE prompt: scripts/agentica/claude_proxy.py:49-155

Comprehensive test: workspace/test_swarm_all_tools.py

DependencySwarm: scripts/agentica/dependency_swarm.py

Common Errors

Error
Cause
Fix

"Permission denied"
Missing --allowedTools
Add --allowedTools Read Write Edit Bash

Agent claims success but file not created
Hallucination
Add anti-hallucination prompt section

"Cannot access /tmp/..."
Sandbox restriction
Use project-relative paths

"APIConnectionError"
Wrong response format
Use SSE streaming (data: {...}\n\n)

"NameError: view_file"
Agent using REPL functions
Add REPL_BASELINE with native tool examples