Second Brain PRD Generator

Generate a personalized Product Requirements Document for building an AI Second Brain, based on the user's completed requirements template.

A blank template is bundled with this skill at ${CLAUDE_SKILL_DIR}/my-second-brain-requirements.md. Copy it to your workspace and fill it out before running this skill.

Parameters

• $0 (required), Path to the filled-out requirements file (e.g., ./my-second-brain-requirements.md)
• $1 (optional), Output path for the PRD. Defaults to .agent/plans/second-brain-prd.md

Workflow

1. Read the requirements, Read the filled-out requirements file at $0. If no argument was provided, ask the user for the path. If they haven't filled one out yet, tell them a blank template is available at ${CLAUDE_SKILL_DIR}/my-second-brain-requirements.md, they should copy it to their workspace and fill it out first.

2. Load the architecture reference, Read ${CLAUDE_SKILL_DIR}/references/architecture-reference.md for the blueprint.

3. Research ALL tools and APIs, Do not assume familiarity with any platform or library. Even common APIs like Gmail or Slack have nuances, rate limits, and SDK-specific patterns that matter for implementation. For every tool in the user's stack, do web research to ensure the PRD contains accurate, specific guidance.

   Always research these core dependencies:

   • Claude Agent SDK, How to create conversations, system_prompt presets, setting_sources, allowed_tools, streaming responses, credential handling
   • FastEmbed, ONNX model loading, batch embedding API, model cache configuration, supported models
   • Hook system, Claude Code hook types (PreToolUse, PostToolUse, etc.), callback signatures, settings.json configuration