Show HN: Prompt Tower v1 – craft context for large codebases

I expanded my VS Code Extension, Prompt Tower, to help with context management issues when using LLMs with large codebases. Tools like gitingest are convenient but I needed more flexibility over token management and context templating.

My favorite “vibe coder” workflow: Prompt Tower → Gemini 2.5 → Cursor Agent

Prompt Tower helps me rinse and repeat a consistent instruction set for Gemini. Which creates instructions that a cursor Agent can follow to the tee - often around 16 steps - cursor falls on its face working alone and I’m too lazy to just follow Gemini’s guidance directly.

Anyway, Prompt Tower features (more to come): Features:

- Dynamic context selection from file tree

- Directory structure injection (full, dirs-only, or selections)

- Robust ignore capabilities (.gitignore, custom project ignores, workspace settings)

- Custom templates (XML format default)

Tested up to 5M tokens.