Claude Commit Message — JetBrains Plugin

Generate meaningful, conventional Git commit messages straight from your IDE.

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Features

• One-click generation from the commit dialog toolbar or the VCS menu
• Conventional Commits format by default (type(scope): summary)
• Three generation modes — no internet? No problem
  • AUTO — tries local Claude CLI first, falls back to the Anthropic API
  • LOCAL — runs any local command (e.g. claude -p "{prompt}")
  • API — calls the Anthropic API directly with your key
• Latest Claude Models — Opus 4.7, Sonnet 4.6, Haiku 4.6 + more
• Effort Level Control — Choose from MINIMAL to MAXIMUM effort (100-500 tokens, 0.0-0.7°C)
• Smart diff scoping — uses staged changes, selected files, or the full working-tree diff
• Customizable prompt — edit the system prompt and use {diff} as a placeholder
• Live model list — refresh available Claude models directly from the settings panel
• Secure key storage — API key stored in the IDE's Password Safe (never in plain text)
• i18n — English and French supported

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Requirements

Requirement	Version
JetBrains IDE	IntelliJ IDEA 2024.2+ (and other JetBrains IDEs)
JDK	17+

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Installation

Install from the JetBrains Marketplace (coming soon), or build from source:

./gradlew runIde

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Configuration

Open Settings → Tools → Claude Commit.

Setting	Description
API Key	Your Anthropic API key (stored securely in Password Safe)
Model	Select from latest Claude models (Opus 4.7, Sonnet 4.6, Haiku 4.6, etc.)
Effort Level	Control computational investment: MINIMAL → MAXIMUM (100-500 tokens)
Refresh models	Fetches the latest model list from the Anthropic API
Generation mode	AUTO, LOCAL, or API
Local command	Command template with {prompt} placeholder
Max diff size	Maximum number of characters sent to the model (1 000 – 100 000)
Custom prompt	System prompt template — use {diff} to inject the Git diff

Local command examples

# macOS / Linux
claude -p '{prompt}'

# Windows (cmd.exe)
claude -p "{prompt}"

# Any other CLI tool
my-llm-tool --prompt "{prompt}"

AUTO mode behavior

Local Claude CLI available?
  ├── Yes → generate locally (fast, no API cost)
  └── No  → fall back to Anthropic API

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Default prompt template

You are an assistant that writes professional Git commit messages.

Constraints:
- Reply only with the commit message.
- Preferred conventional format: type(scope): summary
- One title line <= 72 characters.
- Optional: one blank line then 2-4 short bullets.
- Base your response strictly on the provided diff.
- Do not invent changes that are not present.

Git Diff:
{diff}

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What's New in v0.1.7?

🤖 Latest Claude Models

• Claude Opus 4.7 (2025) - Most capable model, now default
• Claude Sonnet 4.6 - Latest balanced model
• Claude Haiku 4.6 - Latest fast model
• Plus 6+ additional models from 2024-2025 releases

⚡ Effort Level Control

Choose how much computational effort Claude invests in your messages:

Level	Tokens	Temp	Use Case
MINIMAL	100	0.0°C	Fastest, most deterministic
LOW	150	0.1°C	Quick & focused
MEDIUM	220	0.2°C	Balanced (default)
HIGH	350	0.4°C	Thorough & creative
MAXIMUM	500	0.7°C	Most detailed & nuanced

🎯 Key Improvements

• Better model naming (e.g., "claude opus 4.7" instead of machine IDs)
• Enhanced settings UI with effort level dropdown
• Improved API error handling with model fallback
• Live model refresh from Anthropic API
• Temperature control for creativity based on effort level

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Development

# Run tests
./gradlew test

# Launch a sandboxed IDE instance
./gradlew runIde

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License

MIT