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| 📅 Today’s Picks |
LangChain v1.0: Automate Tool Selection for Faster Agents
Problem:
Agents with many tools waste tokens by sending all tool descriptions with every request.
This wastes tokens on irrelevant tool descriptions, making responses slower and more expensive.
Solution:
LangChain v1.0 introduces LLMToolSelectorMiddleware that pre-filters relevant tools using a smaller model.
Key features:
- Pre-filter tools using cheaper models like GPT-4o-mini
- Limit tools sent to main agent (e.g., 3 most relevant)
- Preserve critical tools with always_include parameter
prek: Faster, Leaner Pre-Commit Hooks (Rust-Powered)
Problem:
pre-commit is a framework for managing Git hooks that automatically run code quality checks before commits.
However, installing these hook environments (linters, formatters, etc.) can be slow and disk-intensive, especially in CI/CD pipelines where speed matters.
Solution:
prek is a drop-in replacement for pre-commit that installs hook environments significantly faster while using 50% less disk space.
Built with Rust for maximum performance, prek reduces cache storage from 1.6GB to 810MB (benchmarked on Apache Airflow repository) without changing your workflow.
Key benefits:
- Uses your existing .pre-commit-config.yaml files
- Commands mirror pre-commit syntax (prek install-hooks, prek run)
- Monorepo support with selector syntax for targeting specific projects or hooks
- Install as a single binary with no dependencies
No configuration changes needed – just replace the command.
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| ☕️ Weekly Finds |
deepagents LLM
Build advanced AI agents with context isolation through sub-agent delegation. Features virtual file system for context offloading, specialized sub-agents with focused tool sets, and sophisticated agent architecture for real-world research and analysis tasks.
mcp-gateway MLOps
Docker MCP CLI plugin / MCP Gateway for production-grade AI agent stack. Enables multi-agent orchestration, intelligent interceptors, and enterprise security with Docker integration.
nbQA Python Utils
Run ruff, isort, pyupgrade, mypy, pylint, flake8, and more on Jupyter Notebooks. Command-line tool to run linters and formatters over Python code in Jupyter notebooks.
