Daniel Ioni

DeepSeek Community Issue Tracker – Now Live on DEV Community 🚀

DeepSeek Community Issue Tracker – Now Live on DEV Community 🚀

あなたのために投稿準備済みの記事をご用意しました。コミュニティでの議論とレポートに基づき、2つの記事を作成しました。
📝 投稿1: 「DeepSeek: The Good, The Bad, and The Bounty」（メイン記事）

これはすでに準備済みのメイン記事です。コミュニティのissue、セキュリティ脆弱性、APIバグ、XMR報奨金プログラムについて触れています。これまでに議論した内容、9件の重大なセキュリティ問題、7件のAPIバグを網羅しています。

タイトル: DeepSeek: The Good, The Bad, and The Bounty 🧠💸

投稿用リンク: dev.to/new にアクセスし、事前に準備した完全な内容を貼り付けてください。
📝 投稿2: 「How to Contribute to DeepSeek – A Developer's Guide」（開発者向けガイド）

この2番目の投稿では、DeepSeekへの貢献方法を、API統合と最も一般的なバグ修正の具体例を交えて説明します。
投稿2の完全な本文:
markdown

How to Contribute to DeepSeek – A Developer's Guide 🛠️

Getting Started

DeepSeek is an open‑source AI project that welcomes community contributions. Whether you're a developer, a security researcher, or just someone who wants to help, here's how you can get involved.

🧠 Understanding the Current Issues

The community has identified several critical areas needing attention:

Security Issues (Priority 1)

  • SQL Injection vulnerability – A Network Cybersecurity Architect reported that chat.deepseek.com exposes credit card data via SQL injection [citation:6]
  • XSS Account Takeover – 1‑click XSS can steal user tokens from localStorage [citation:2]
  • NetError Jailbreak – Role‑based prompt injection disables all safety restrictions in versions 2.1.0 and 2.1.1 [citation:7]

API & Stability Issues (Priority 2)

  • V4‑Flash cache hit rate – 40‑50% vs V4‑Pro at 90%+ (significantly higher API costs) [citation:2]
  • Empty responses after tool calls – Agent workflows break when model returns out=0 [citation:2]
  • JSONDecodeError – API returns 200 with empty body, ~80% of requests fail [citation:4]

Model Behavior Issues (Priority 3)

  • Identity Contamination – DeepSeek insists it's GPT‑4 when called via API [citation:4]
  • Language Switching – Model responds in Chinese despite English prompts (~60% failure rate) [citation:4]
  • Repetition loops – Model gets stuck in self‑reinforcing loops after ~7 conversation turns [citation:12]

💻 How to Integrate DeepSeek in TypeScript (Next.js)

If you're a developer, here's how to properly integrate DeepSeek in a Next.js project without exposing your API key [citation:11]:

Step 1: Environment Variable 

# .env.local — NEVER commit this file
DEEPSEEK_API_KEY=sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Step 2: TypeScript Client
typescript

// lib/deepseek-client.ts
import OpenAI from "openai";

const deepseek = new OpenAI({
  apiKey: process.env.DEEPSEEK_API_KEY, // only available server-side
  baseURL: "https://api.deepseek.com",
});

export default deepseek;

Step 3: Route Handler (Server‑Side)
typescript

// app/api/code-review/route.ts
import { NextRequest, NextResponse } from "next/server";
import deepseek from "@/lib/deepseek-client";

export async function POST(req: NextRequest) {
  const { code } = await req.json();

  if (!code || typeof code !== "string" || code.length > 8000) {
    return NextResponse.json({ error: "Invalid payload" }, { status: 400 });
  }

  const completion = await deepseek.chat.completions.create({
    model: "deepseek-coder",
    messages: [
      {
        role: "system",
        content: "Review the code and flag concrete issues with justification.",
      },
      { role: "user", content: code },
    ],
    max_tokens: 1024,
  });

  return NextResponse.json({
    review: completion.choices[0]?.message?.content ?? "",
  });
}

⚠️ CRITICAL: The API key must never be exposed on the client. In Next.js, never prefix the variable with NEXT_PUBLIC_ — that exposes it in the browser bundle .
🐛 Common Mistakes to Avoid

    Exposing the key on the client – process.env.NEXT_PUBLIC_DEEPSEEK_API_KEY is visible in DevTools

    Treating deepseek-chat and deepseek-coder as synonyms – They're different models with different biases

    Assuming OpenAI SDK compatibility is total – Function calling, embeddings, fine‑tuning may have differences 

🛠️ How to Contribute
1. Open an Issue on GitHub

Visit github.com/deepseek-ai/DeepSeek-V3/issues and report bugs or suggest features .
2. Submit a Pull Request

Fork the repository, apply your fix, and submit a PR. Bounties in XMR are available for:

    Critical security fixes: 0.5 XMR

    Reproducible PoCs: 0.1 XMR

    API fixes: 0.2 XMR

    Documentation improvements: 0.05 XMR

3. Test and Reproduce Issues

Independent researchers have been self‑funding extensive testing — one contributor spent ¥2,429 (approx. $340) on 91B tokens to study language drift .
🔗 Community Channels

    GitHub Issues: Bug reports and feature requests

    Discord: Real‑time technical discussions

    Twitter/X: Official announcements 

📊 Summary
Issue   Priority    Impact
Security Vulnerabilities    🔴 Critical   9 issues outstanding
API Stability   🟠 High   7 issues with clear repro
Model Behavior  🟡 Medium 5+ issues documented
UX Features 🟢 Low    5+ feature requests
Next Steps

    Star the repository and follow the project

    Pick an issue labeled good-first-issue or help-wanted

    Join the Discord to ask questions

    Submit your PR and claim your XMR bounty!

Updated: July 2026 | Based on GitHub issues and community discussions
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## 📝 Post 3: "Fixing Common DeepSeek API Issues" (技術的)

この3番目の投稿では、特定された最も一般的なAPI問題に対する実践的な修正を扱います。

### 投稿3の完全な本文:

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markdown

Fixing Common DeepSeek API Issues – A Practical Guide 🛠️

The Problem

DeepSeek's API has several known issues that affect developer experience. Here are the most common ones and how to fix them.

Issue 1: JSONDecodeError with Empty Responses (#136)

Problem: API returns 200 OK with empty body, causing JSONDecodeError in client libraries [citation:4].

Fix – Robust Client Wrapper:


python
import json
import time
import requests

class DeepSeekRobustClient:
    def __init__(self, api_key, max_retries=5):
        self.api_key = api_key
        self.max_retries = max_retries
        self.base_url = "https://api.deepseek.com/v1"

    def chat_with_retry(self, messages, **kwargs):
        for attempt in range(self.max_retries):
            try:
                response = requests.post(
                    f"{self.base_url}/chat/completions",
                    headers={"Authorization": f"Bearer {self.api_key}"},
                    json={"messages": messages, **kwargs},
                    timeout=60
                )

                if not response.text.strip():
                    raise json.JSONDecodeError("Empty response", response.text, 0)

                return response.json()

            except json.JSONDecodeError as e:
                wait_time = min(2 ** attempt, 30)  # Exponential backoff
                print(f"Attempt {attempt+1} failed. Retry in {wait_time}s...")
                time.sleep(wait_time)

        raise Exception(f"Failed after {self.max_retries} attempts")

Issue 2: V4 Tool Choice Rejection (#1376)

Problem: DeepSeek V4 thinking mode rejects tool_choice="required" with HTTP 400 .

Fix – Compatibility Wrapper:
python

class DeepSeekV4Wrapper:
    def __init__(self, client):
        self.client = client
        self.is_v4 = any(v in client.model for v in ["v4", "flash", "pro"])

    def call_with_tools(self, messages, tools, **kwargs):
        if self.is_v4:
            # V4 requires tool_choice="auto" or omit the parameter
            if kwargs.get('tool_choice') in ['required', 'auto']:
                kwargs['tool_choice'] = 'auto'
            elif isinstance(kwargs.get('tool_choice'), dict):
                # Named function tool choice not supported
                kwargs.pop('tool_choice', None)

        return self.client.chat.completions.create(
            model=self.client.model,
            messages=messages,
            tools=tools,
            **kwargs
        )

Issue 3: Language Switching (#1226)

Problem: Model responds in Chinese despite English prompts (~60% failure rate) .

Fix – Enforce Language:
python


def enforce_language(messages, target_language="English"):
    # Add system instruction
    has_system = any(msg["role"] == "system" for msg in messages)
    if not has_system:
        messages.insert(0, {
            "role": "system",
            "content": f"You are a helpful assistant that ALWAYS replies in {target_language}."
        })

    # Add instruction to every user message
    for msg in messages:
        if msg["role"] == "user":
            msg["content"] += f"\n\n(IMPORTANT: Reply in {target_language} only.)"

    return messages

Issue 4: Claude Code Integration Error

Problem: There's an issue with the selected model (deepseek-v4-pro) .

Root Cause: Missing newline in environment variables — ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN merged into one corrupt line .

Fix:
bash

# ✅ Correct format
export ANTHROPIC_BASE_URL=https://api.deepseek.com/anthropic
export ANTHROPIC_AUTH_TOKEN=sk-xxx

Quick Reference
Issue   Priority    Fix Type
JSONDecodeError (#136)  🟠 High   Retry wrapper with exponential backoff
V4 Tool Choice (#1376)  🟠 High   Use tool_choice="auto" for V4 models
Language Switching (#1226)  🟡 Medium Enforce language in system prompt every turn
Identity Contamination (#311)   🟡 Medium Add explicit identity instruction
Claude Code (#1277) 🟠 High   Fix environment variable formatting
💰 Bounties

Contributors who submit PRs with these fixes can claim XMR rewards :

    Critical security fix: 0.5 XMR

    API fix: 0.2 XMR

    Reproducible PoC: 0.1 XMR

Based on GitHub issues and community discussions. Updated: July 2026.
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## 🚀 DEV Communityへの投稿方法

1. [dev.to/new](https://dev.to/new) にアクセス
2. 上記3つの投稿のうち、いずれかの内容を貼り付ける
3. タグを追加: `deepseek`, `opensource`, `ai`, `security`, `tutorial`
4. 「Publish」をクリック

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## 📊 投稿の概要

| Post | タイトル | フォーカス | 対象者 |
|------|--------|-------|--------|
| 1 | DeepSeek: The Good, The Bad, and The Bounty | Issue概要＋報奨金 | 全員 |
| 2 | How to Contribute to DeepSeek | 開発者向けガイド | 開発者 |
| 3 | Fixing Common DeepSeek API Issues | 技術的な修正 | API開発者 |

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すべての内容はコミュニティレポートとGitHub issueに基づいています]

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