Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/vibeeval/vibecosystemnpx agentmods add skills/vibeeval/vibecosystem/agentica-claude-proxyWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/vibeeval/vibecosystem/agentica-claude-proxy)<a href="https://agentmods.dev/skills/vibeeval/vibecosystem/agentica-claude-proxy"><img src="https://agentmods.dev/badge/skills/vibeeval/vibecosystem/agentica-claude-proxy.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00019 | $0.01055 |
| Opus 5 | $0.00010 | $0.00528 |
| Sonnet 5 | $0.00004 | $0.00211 |
| Haiku 4.5 | $0.00002 | $0.00105 |
Grade A, and why
agentica-claude-proxy scanned grade A with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s http://localhost:8080/v1/chat/completions \ Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
subprocess.run([ This is a copy
100% identical to agentica-claude-proxy — 318 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 160 lines · 19 tokens per session scan A c35e44166063
agentica-claude-proxy is a skill published in the GitHub repository vibeeval/vibecosystem (530 stars, last pushed 1mo ago), licensed MIT. It adds 19 tokens to every session and 1,055 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). It is 100% identical to agentica-claude-proxy, differing in 318 lines, and is treated as a copy.
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