simongonzalezdc writes about a serving-side tool-attention failure in Qwen3.8-27B via llama-server (jinja templates) where the position of tools in the rendered payload determines whether the model will invoke them. With an 8-tool list, early-positioned, description-less tools were verbally refused as "not wired up" (0/6 success), while the same tools worked perfectly when moved to the tail (3/3) or given a one-line description (6/6). A follow-up with 13 tools confirmed the pattern: a mid-list pair prescribed by name failed 0/5, but tail placement restored 3/3 clean invocation.
- Hypothesis: later tools in the rendered template output receive more attention; compact single-JSON-blob rendering may amplify the position effect versus per-tool natural-language rendering.
- Controlled matrix (24 runs + 27 curl controls) ruled out tool count, context/style, effort level, and fresh-session as causes.
- Test hardware: AMD Strix Halo (gfx1151/HIP) running Q4_K_XL quantization on current llama-server.
- Full methodology and ledgers published in a companion repo: KyaniteLabs/qwen38-27b-strix-halo.
- Hypothesis: later tools in the rendered template output receive more attention; compact single-JSON-blob rendering may amplify the position effect versus per-tool natural-language rendering.
- Controlled matrix (24 runs + 27 curl controls) ruled out tool count, context/style, effort level, and fresh-session as causes.
- Test hardware: AMD Strix Halo (gfx1151/HIP) running Q4_K_XL quantization on current llama-server.
- Full methodology and ledgers published in a companion repo: KyaniteLabs/qwen38-27b-strix-halo.
This guide provides a comprehensive walkthrough on using Google's Gemma 4 model to build autonomous AI agents through tool calling. It explores how this feature enables models to move beyond simple text generation by interacting with external APIs and systems via structured function calls.
Key topics covered in the article include:
- The mechanics of the tool calling loop, from reasoning and selection to execution and final response.
- Setting up a Python development environment using Hugging Face and necessary libraries like transformers and torch.
- Defining JSON schemas for tools to ensure precise model understanding.
- Implementing a full agent workflow by parsing function call responses and executing Python functions.
- A practical end-to-end demonstration of building a weather lookup agent.
- Managing multi-turn conversations through state management and conversation history.
- Best practices for production deployment, including argument validation, execution timeouts, and logging.
Key topics covered in the article include:
- The mechanics of the tool calling loop, from reasoning and selection to execution and final response.
- Setting up a Python development environment using Hugging Face and necessary libraries like transformers and torch.
- Defining JSON schemas for tools to ensure precise model understanding.
- Implementing a full agent workflow by parsing function call responses and executing Python functions.
- A practical end-to-end demonstration of building a weather lookup agent.
- Managing multi-turn conversations through state management and conversation history.
- Best practices for production deployment, including argument validation, execution timeouts, and logging.
This tutorial provides a step-by-step guide to building a lightweight personal AI agent inspired by the nanobot architecture in Google Colab. The approach focuses on recreating core components—such as provider abstractions, tool registration, session memory, and lifecycle hooks—rather than relying on heavy external frameworks. Key features include a tool registry for Python functions, token-budgeted memory management, and an MCP-style tool server for external capabilities. The guide includes a complete Python implementation that supports both live OpenAI-compatible models and a deterministic mock provider for offline testing.
Main topics covered:
- Provider abstraction for multi-model compatibility
- Automated tool schema generation using decorators
- Session-specific memory with token budgeting
- Lifecycle hooks for auditing and timing
- Dynamic skill loading and MCP server connection
Main topics covered:
- Provider abstraction for multi-model compatibility
- Automated tool schema generation using decorators
- Session-specific memory with token budgeting
- Lifecycle hooks for auditing and timing
- Dynamic skill loading and MCP server connection
This article explores how tool calling enables AI agents to move beyond simple text generation by interacting with external systems. It explains the process where large language models generate structured data, such as JSON, instead of natural language to trigger specific functions and APIs.
- The mechanics of function definition within model prompts
- How reasoning leads a model to select appropriate tools for a task
- The transition from conversational responses to actionable command outputs
- The execution loop required for autonomous agent behavior
- The mechanics of function definition within model prompts
- How reasoning leads a model to select appropriate tools for a task
- The transition from conversational responses to actionable command outputs
- The execution loop required for autonomous agent behavior
This tutorial demonstrates how to evolve a standard chatbot into a truly agentic system using the Gemma 4 model family. Instead of relying solely on remote web APIs, it shows how to provide the model with tools that interact directly with the local environment—specifically a sandboxed filesystem explorer and a restricted Python interpreter. By implementing security measures like path-traversal guards for file access and whitelisted builtins for code execution, users can safely allow small models running locally on laptops to observe their surroundings and perform deterministic calculations.
Main topics:
* Transitioning from API retrieval to true agency through local system interaction.
* Building a secure filesystem explorer with path-traversal protection.
* Implementing a restricted Python interpreter using exec() and whitelisted builtins.
* Orchestrating tool calls using Gemma 4 and Ollama for local agentic workflows.
Main topics:
* Transitioning from API retrieval to true agency through local system interaction.
* Building a secure filesystem explorer with path-traversal protection.
* Implementing a restricted Python interpreter using exec() and whitelisted builtins.
* Orchestrating tool calls using Gemma 4 and Ollama for local agentic workflows.
1. **Retrieval-Augmented Generation (RAG):** Ground responses in trusted, retrieved data instead of relying on the model's memory.
2. **Require Citations:** Demand sources for factual claims; retract claims without support.
3. **Tool Calling:** Use LLMs to route requests to verified systems of record (databases, APIs) rather than generating facts directly.
4. **Post-Generation Verification:** Employ a "judge" model to evaluate and score responses for factual accuracy, regenerating or refusing low-scoring outputs. Chain-of-Verification (CoVe) is highlighted.
5. **Bias Toward Quoting:** Prioritize direct quotes over paraphrasing to reduce factual drift.
6. **Calibrate Uncertainty:** Design for safe failure by incorporating confidence scoring, thresholds, and fallback responses.
7. **Continuous Evaluation & Monitoring:** Track hallucination rates and other key metrics to identify and address performance degradation. User feedback loops are critical.
2. **Require Citations:** Demand sources for factual claims; retract claims without support.
3. **Tool Calling:** Use LLMs to route requests to verified systems of record (databases, APIs) rather than generating facts directly.
4. **Post-Generation Verification:** Employ a "judge" model to evaluate and score responses for factual accuracy, regenerating or refusing low-scoring outputs. Chain-of-Verification (CoVe) is highlighted.
5. **Bias Toward Quoting:** Prioritize direct quotes over paraphrasing to reduce factual drift.
6. **Calibrate Uncertainty:** Design for safe failure by incorporating confidence scoring, thresholds, and fallback responses.
7. **Continuous Evaluation & Monitoring:** Track hallucination rates and other key metrics to identify and address performance degradation. User feedback loops are critical.
This guide explains how to use tool calling with local LLMs, including examples with mathematical, story, Python code, and terminal functions, using llama.cpp, llama-server, and OpenAI endpoints.
Qwen3-Coder-Next is an 80B MoE model with 256K context designed for fast, agentic coding and local use. It offers performance comparable to models with 10-20x more active parameters and excels in long-horizon reasoning, complex tool use, and recovery from execution failures.
This article details the creation of a simple, 50-line agent using Model Context Protocol (MCP) and Hugging Face's tools, demonstrating how easily agents can be built with modern LLMs that support function/tool calling.
1. **MCP Overview**: MCP is a standard API for exposing tools that can be integrated with Large Language Models (LLMs).
2. **Implementation**: The author explains how to implement a MCP client using TypeScript and the Hugging Face Inference Client. This client connects to MCP servers, retrieves tools, and integrates them into LLM inference.
3. **Tools**: Tools are defined with a name, description, and parameters, and are passed to the LLM for function calling.
4. **Agent Design**: An agent is essentially a while loop that alternates between tool calling and feeding tool results back into the LLM until a specific condition is met, such as two consecutive non-tool messages.
5. **Code Example**: The article provides a concise 50-line TypeScript implementation of an agent, demonstrating the simplicity and power of MCP.
6. **Future Directions**: The author suggests experimenting with different models and inference providers, as well as integrating local LLMs using frameworks like llama.cpp or LM Studio.
1. **MCP Overview**: MCP is a standard API for exposing tools that can be integrated with Large Language Models (LLMs).
2. **Implementation**: The author explains how to implement a MCP client using TypeScript and the Hugging Face Inference Client. This client connects to MCP servers, retrieves tools, and integrates them into LLM inference.
3. **Tools**: Tools are defined with a name, description, and parameters, and are passed to the LLM for function calling.
4. **Agent Design**: An agent is essentially a while loop that alternates between tool calling and feeding tool results back into the LLM until a specific condition is met, such as two consecutive non-tool messages.
5. **Code Example**: The article provides a concise 50-line TypeScript implementation of an agent, demonstrating the simplicity and power of MCP.
6. **Future Directions**: The author suggests experimenting with different models and inference providers, as well as integrating local LLMs using frameworks like llama.cpp or LM Studio.
