Manage, test, and version your Claude AI prompts directly in VS Code.
Setup
Install the extension
Run Claude Prompt Manager: Set API Key from the Command Palette (Ctrl+Shift+P)
Create a .prompt file and start writing
.prompt File Format
---
model: claude-sonnet-4-6
maxTokens: 1000
systemPrompt: You are a helpful assistant.
---
Write a product description for {{productName}} targeting {{targetAudience}}.
Frontmatter (optional):
| Key | Default | Description |
|-----|---------|-------------|
| model | claude-sonnet-4-6 | Model to use |
| maxTokens | 2048 | Max response length |
| systemPrompt | — | System instructions |
Variables: Use {{variableName}} — you'll be prompted to fill them in at run time.
Running Prompts
Run: Click ▶ in the editor title bar, or right-click → Claude: Run Prompt
From sidebar: Click ▶ next to any .prompt file in the Explorer panel
Pro Features
Feature
Free
Pro
Run prompts
✅
✅
Variables
✅
✅
Syntax highlighting
✅
✅
History (last 500 runs)
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Compare all 3 models side-by-side
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Activate Pro: Claude Prompt Manager: Activate Pro License
