Lagent is a developer-focused framework that enables creation of intelligent agents on top of large language models. It offers dynamic planning modules that break tasks into subgoals, memory stores to maintain context over long sessions, and tool integration interfaces for API calls or external service access. With customizable pipelines, users define agent behaviors, prompting strategies, error handling, and output parsing. Lagent’s logging and debugging tools help monitor decision steps, while its scalable architecture supports local, cloud, or enterprise deployments. It accelerates building autonomous assistants, data analysers, and workflow automations.

Spellcaster provides a structured approach to building AI Agents by using 'spells'—a combination of prompts, logic, and workflows. Developers write YAML configurations to define agents’ roles, inputs, outputs, and orchestration steps. The CLI tool executes spells, routes messages, and integrates seamlessly with OpenAI, Anthropic, and other LLM APIs. Spellcaster tracks execution logs, retains conversation context, and supports custom plugins for pre- and post-processing. Its debugging interface visualizes the sequence of calls and data flows, making it easier to identify prompt failures and performance issues. By abstracting complex orchestration patterns and standardizing prompt templates, Spellcaster reduces development overhead and ensures consistent agent behavior across environments.