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agentica-server

Set up Python agents using Agentica SDK with a local proxy that forwards requests to Claude CLI. Follow startup steps, configure connection endpoints, check service health, and troubleshoot connection failures or missing tool access.

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Agentica server + Claude proxy setup - architecture, startup sequence, debugging

查看安装方法

适用场景

  • Setting up Agentica with Claude CLI
  • Diagnosing SDK, server, and proxy connection failures
  • Troubleshooting agent file tool access
  • Checking service health and investigating timeouts

包含的文件(1)

  • SKILL.md4.3 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

Agentica Server + Claude Proxy Setup

Complete reference for running Agentica SDK with a local Claude proxy. This enables Python agents to use Claude CLI as their inference backend.

When to Use

Use this skill when:

  • Starting Agentica development with Claude proxy
  • Debugging connection issues between SDK, server, and proxy
  • Setting up a fresh Agentica environment
  • Troubleshooting agent tool access or hallucination issues

Architecture

Agentica SDK (client code)
    | S_M_BASE_URL=http://localhost:2345
    v
ClientSessionManager
    |
    v
Agentica Server (agentica-server)
    | INFERENCE_ENDPOINT_URL=http://localhost:8080/v1/chat/completions
    v
Claude Proxy (claude_proxy.py)
    |
    v
Claude CLI (claude -p)

Environment Variables

VariableSet ByUsed ByPurpose
INFERENCE_ENDPOINT_URLHumanagentica-serverWhere server sends LLM inference requests
S_M_BASE_URLHumanAgentica SDK clientWhere SDK connects to session manager

KEY: These are NOT the same endpoint!

  • SDK connects to server (port 2345)
  • Server connects to proxy (port 8080)

Startup Sequence

Must start in this order (each in a separate terminal):

Terminal 1: Claude Proxy

uv run python scripts/agentica/claude_proxy.py --port 8080

Terminal 2: Agentica Server

MUST run from its directory:

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

Terminal 3: Your Agent Script

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

Health Checks

# Claude proxy health
curl http://localhost:8080/health

# Agentica server health
curl http://localhost:2345/health

Common Errors & Fixes

1. APIConnectionError after agent spawn

Symptom: Agent spawns successfully but fails on first call with connection error.

Cause: Claude proxy returning plain JSON instead of SSE format.

Fix: Proxy must return Server-Sent Events format:

data: {"choices": [...]}\n\n

2. ModuleNotFoundError for agentica-server

Symptom: ModuleNotFoundError: No module named 'agentica_server'

Cause: Running uv run agentica-server from wrong directory.

Fix: Must cd workspace/agentica-research/agentica-server first.

3. Agent can't use Read/Write/Edit tools

Symptom: Agent asks for file contents instead of reading them.

Cause: Missing --allowedTools in claude_proxy.py CLI call.

Fix: Proxy must pass tool permissions:

claude -p ... --allowedTools Read Write Edit Bash

4. Agent claims success but didn't do task

Symptom: Agent says "I've created the file" but file doesn't exist.

Cause: Hallucination - agent describing intended actions without executing.

Fix: Added emphatic anti-hallucination prompt in REPL_BASELINE:

CRITICAL: Use ACTUAL tools. Never DESCRIBE using tools.

5. Timeout on agent.call()

Symptom: Call hangs for 30+ seconds then times out.

Cause: Claude CLI taking too long or stuck in a loop.

Fix: Check proxy logs for the actual CLI output. May need to simplify prompt.

Key Files

FilePurpose
scripts/agentica/claude_proxy.pyOpenAI-compatible proxy with SSE streaming
workspace/agentica-research/agentica-server/Local agentica-server installation
scripts/agentica/PATTERNS.mdMulti-agent pattern documentation

Quick Verification

Test the full stack:

# 1. Verify proxy responds
curl http://localhost:8080/health

# 2. Verify server responds
curl http://localhost:2345/health

# 3. Test inference through proxy
curl http://localhost:8080/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{"model":"claude","messages":[{"role":"user","content":"Say hello"}]}'

Checklist

Before running agents:

  • Claude proxy running on port 8080
  • Agentica server running on port 2345 (from its directory)
  • S_M_BASE_URL set for client scripts
  • INFERENCE_ENDPOINT_URL set for server
  • Both health checks return 200

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中文简介正在准备中。当前显示英语简介。

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