Turn selected workspace files and Git diffs into clean, AI-ready context from inside VS Code.

Lupinum Context is a local-first VS Code extension for building precise prompts for ChatGPT, Claude, Gemini and other LLMs. Pick the files you want, optionally include recent Git commit diffs, add a reusable prompt prefix, then copy or save a structured context bundle.

• Visual file selection with native VS Code checkboxes
• Rough token estimates for Claude, OpenAI, and Gemini
• Optional recent Git commit diff selection
• Reusable prompt prefixes
• Readable or compact XML-like output
• .gitignore, .contextignore, and .towerignore support
• Local-only context generation for filesystem workspaces

Lupinum Context generates structured text like this:

<context>
<project_tree>
src/
└─ core/
   └─ context/ContextAssembler.ts
</project_tree>
<project_files>
<file name="ContextAssembler.ts" path="/src/core/context/ContextAssembler.ts">
...
</file>
</project_files>
<git_diffs>
...
</git_diffs>
</context>

1. Install Lupinum Context in VS Code.
2. Open the Lupinum Context view from the Activity Bar.
3. Select files and, optionally, Git commits.
4. Add a prompt prefix if needed.
5. Click Copy Context.
6. Paste into your LLM of choice.

Create a .contextignore file in your workspace root to keep noisy files out of context:

tests/fixtures/
docs/generated/
*.min.js
data/

Lupinum Context also honors .gitignore and .towerignore.

Requirements:

• Node.js 20+
• pnpm 10+
• VS Code 1.96+

git clone https://github.com/lupinum-dev/context.git
cd context
vp install
vp run watch

Then press F5 in VS Code to launch the Extension Development Host.

Before opening a PR:

vp run validate

Before release or command-wiring changes:

pnpm run smoke:vscode
vp run bench:smoke

Build and install a local VSIX:

vp run deploy:local

Releases use Conventional Commits and changelogen. The first public version is 0.1.0.

pnpm run changelog                 # preview generated notes
pnpm run release -- -r 0.1.0       # first release commit + tag
pnpm run release:github -- 0.1.0   # sync GitHub release from CHANGELOG.md

See docs/RELEASING.md for marketplace publishing.

src/core   → pure domain logic
src/app    → application workflows
src/vscode → VS Code adapters and shell
src/webview → Vue UI

Import boundaries are enforced by scripts/check-boundaries.mjs.

AGPL-3.0

Built by Lupinum. Originally forked from prompt-tower.