https://jecklgamis.com/tags/langgraph/Recent content in Langgraph on jecklgamis.comHugoen-usThu, 16 Apr 2026 13:49:15 +1000https://jecklgamis.com/guides/langgraph-agent-with-tools-guardrails-and-memory/Wed, 15 Apr 2026 00:00:00 +0000https://jecklgamis.com/guides/langgraph-agent-with-tools-guardrails-and-memory/<p>A LangGraph agent with local function tools, guardrails, memory, human-in-the-loop, and optional MCP server connections.</p> <h2 id="features">Features</h2> <ul> <li>Local tools: filesystem, network, web search, math, bash</li> <li>Optional MCP server connections (math, perf)</li> <li>Configurable LLM providers: Ollama (default), OpenAI, Google Gemini, Anthropic, Microsoft Azure, Meta, DeepSeek, Mistral, xAI, OpenRouter</li> <li>Conversation memory via LangGraph checkpointing (SQLite)</li> <li>Guardrails: input validation, LLM-as-judge, output PII redaction, bash command denylist</li> <li>Human-in-the-loop tool call confirmation</li> <li>Graceful error handling for LLM connection failures</li> <li>HTTP API via FastAPI with streaming support</li> <li>Playground UI at <code>/playground</code></li> <li>React frontend under <code>frontend/</code></li> <li>LangSmith tracing support</li> </ul> <h2 id="getting-started">Getting Started</h2> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>uv sync </span></span><span style="display:flex;"><span>./run-cli-agent.sh </span></span></code></pre></div><p>For a different LLM provider:</p>