OpenCodeCommit

AI-powered commit messages for VS Code and VS Codium — delegates to CLI tools you already have installed.

Built-in security scanning — diffs are scanned locally for API keys, credentials, and secrets before anything leaves your machine. Details below.

Pick your CLI, pick your model, click the sparkle button. That's it.

VS Code Marketplace · npm · GitHub

Why This Exists

Most AI commit extensions bundle their own API client, force you onto one provider, or don't work on Linux / VS Codium. OpenCodeCommit delegates to terminal AI agents — so it works with any LLM provider those tools support, inherits their auth, and stays out of your way.

Features

• Security scanning — local detection of API keys, credentials, and secrets before sending diffs to any AI backend
• Four CLI backends — Codex CLI, OpenCode, Gemini CLI, Claude Code
• Configurable fallback order — tries each backend in sequence until one succeeds
• Four commit modes — adaptive, adaptive-oneliner, conventional, conventional-oneliner
• Adaptive mode — matches the style of your recent commits automatically
• Multi-language — English and Finnish built-in, add any language with custom instructions
• Configurable prompts — every prompt module is editable in VS Code settings
• Refine — iterate on the generated message with natural language feedback
• Smart context — sends file contents alongside the diff with intelligent truncation
• Customizable — templates, emoji maps, custom prompts, type/message rule overrides
• Codex CLI provider support — use OpenRouter, Ollama, or any provider via -c model_provider
• Flatpak support — works in sandboxed VS Codium via flatpak-spawn --host
• Zero runtime dependencies — just the extension and your CLI of choice

Prerequisites

Install at least one of the supported CLI tools:

Installation

Search for "OpenCodeCommit" in the VS Code / VS Codium extension marketplace, or:

ext install Nevaberry.opencodecommit

Usage

1. Stage your changes (or leave unstaged — the extension auto-detects)
2. Click the sparkle button in the Source Control title bar
3. The commit message appears in the input box

Use the dropdown menu next to the sparkle button for:

• Mode-specific generation (adaptive, conventional, oneliner variants)
• Refine — tweak the current message with feedback
• Switch language
• Diagnose — debug the pipeline
• Open settings

Configuration

All settings are prefixed with opencodecommit. in your settings.json.

Language

Each language entry contains an instruction field plus optional prompt modules (baseModule, adaptiveFormat, conventionalFormat, multilineLength, onelinerLength, sensitiveContentNote). See Multi-Language Example below.

Backend Order

Commit Style

CLI Backends

Each backend has provider, model, and path settings (provider and path are optional). Paths are auto-detected if empty.

Multi-Language Example

Each language entry has an instruction field (required) and optional prompt module overrides. If a prompt module is omitted, the value from the first language in the list is used as fallback.

{
  "opencodecommit.languages": [
    {
      "label": "English",
      "instruction": "Write the commit message in English.",
      "baseModule": "You are an expert at writing git commit messages. ...",
      "adaptiveFormat": "Match the style of the recent commits. ..."
    },
    {
      "label": "Deutsch",
      "instruction": "Schreibe die Commit-Nachricht auf Deutsch. Verwende den Imperativ."
    }
  ]
}

The full default language entries (with all prompt modules) are visible in VS Code Settings under opencodecommit.languages. Use the "Reset Settings to Defaults" command to restore them if you've customized them.

Sensitive Content Detection

Before sending the diff to an AI backend, OpenCodeCommit scans for potential secrets and credentials. If anything is detected, a warning dialog lets you cancel or continue.

What triggers the warning

Sensitive file names — any changed file matching:

• .env, .env.local, .env.production, etc.
• credentials.json
• secret.json, secrets.yaml, etc.
• .netrc
• service-account*.json

Sensitive patterns in added lines (only + lines in the diff, not removals):

The detection is pattern-based and local — nothing is sent to any server until you confirm. Diff header lines (+++, ---) and removed lines (-) are excluded to avoid false positives from old code being deleted.

CLI Tool (occ)

OpenCodeCommit also ships as a standalone Rust CLI for terminal use.

Install

# via npm
npm i -g @nevaberry/opencodecommit

# via cargo
cargo install opencodecommit

Usage

# Generate commit message
opencodecommit commit

# Generate branch name from diff
opencodecommit branch

# Generate PR title and body
opencodecommit pr

# Generate changelog entry
opencodecommit changelog

# Headless mode (for AI agents and scripts)
opencodecommit commit --headless --stdin < diff.txt

Headless Mode

The CLI supports headless operation for AI-to-AI workflows and CI/CD:

opencodecommit commit --headless --backend codex
# Output: {"status":"success","message":"feat: add login page","type":"feat",...}

Exit codes: 0=success, 1=no changes, 2=provider error, 3=config error

Future

• TUI — Ratatui-based terminal UI for Neovim/Emacs users
• Neovim plugin — Lua plugin calling the CLI
• Emacs package — Magit integration
• More providers — as CLI tools add provider support, OpenCodeCommit inherits it

License

MIT