A robust concurrency safety analyzer that detects race conditions, deadlocks, and async pitfalls across multiple languages using 90+ specialized patterns.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install concurrencyguard
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install concurrencyguard using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is ConcurrencyGuard?
ConcurrencyGuard is a dedicated security and stability tool designed to identify complex concurrency hazards in modern codebases. As a powerful addition to the Openclaw Skills library, it performs deep scans for unprotected shared state, missing locks, TOCTOU vulnerabilities, and thread-unsafe patterns. It operates 100% locally, ensuring code privacy while providing developers with actionable remediation steps for JS/TS, Python, Java, Go, Rust, and C# projects.
By integrating this skill, developers can automate the detection of non-atomic operations and deadlock-prone lock ordering before they reach production. The tool utilizes regex-based pattern matching to provide rapid feedback, making it an essential utility for teams building high-concurrency systems where data races and synchronization bugs are frequent risks.
ConcurrencyGuard Use Cases
- Scanning local repositories to find and fix race conditions and data races.
- Auditing multi-threaded applications for missing mutexes or unprotected static fields.
- Preventing the introduction of thread-safety bugs using pre-commit git hooks.
- Generating comprehensive concurrency safety reports for architectural reviews.
- Automating thread-safety checks in CI/CD pipelines to ensure code quality gates.
- Establishing baselines for legacy codebases to focus on new concurrency issues.
How ConcurrencyGuard Works
- The analyzer scans the specified directory, discovering source files while automatically skipping binaries, node_modules, and git-ignored paths.
- It applies a suite of 90+ concurrency safety patterns to detect hazards specific to the programming language in use.
- Each file is assigned a concurrency safety score from 0-100 and a letter grade (A-F) based on the severity of detected issues.
- Detailed findings are generated, including the exact line number, check ID, severity level, and a specific recommendation for fixing the issue.
- In Pro and Team modes, the skill can watch for real-time changes or generate aggregate metrics to track concurrency safety trends over time.
ConcurrencyGuard Setup
To get started with this skill, ensure your environment has git, bash, python3, and jq installed. You will also need to install the git hooks manager via Homebrew:
brew install lefthook
Run a basic scan of your project directory using the following command:
bash "scripts/concurrencyguard.sh" scan .
To integrate concurrency checks into your workflow, install the pre-commit hooks:
bash "scripts/concurrencyguard.sh" hook install
For advanced features, configure your license key in your Openclaw Skills configuration file at ~/.openclaw/openclaw.json.
ConcurrencyGuard Data Schema & Taxonomy
ConcurrencyGuard organizes its analysis results using a structured scoring system and categorized metadata. The findings are categorized as follows:
| Category | Description | Severity |
|---|---|---|
| Shared State (SS) | Global mutable variables, unprotected static fields | Critical/High |
| Locking & Mutex (LK) | Missing locks, nested locks, deadlock risks | Critical/High |
| TOCTOU & Atomicity (TC) | Check-then-act without synchronization, non-atomic counters | Critical/High |
| Async/Await (AW) | Missing awaits, race conditions in promises | High/Medium |
| Thread Safety (TS) | Thread-unsafe singletons, non-thread-safe collections | High/Medium |
| Deadlock (DL) | Inconsistent lock ordering, unbuffered channels | Critical/High |
All reports are generated in Markdown format. Team-tier users can also generate a .concurrencyguard-baseline.json to manage known issues in legacy codebases.
ConcurrencyGuard Advanced Features
- Continuous file-watching mode for real-time concurrency feedback during active coding sessions.
- CI/CD integration with strict exit codes (0 for clean, 1 for critical findings) for automated pipelines.
- Team-level aggregate reporting to identify hotspots and worst-offending modules in large projects.
- Baseline management to suppress existing findings and prioritize new vulnerabilities in legacy systems.
- Configurable severity thresholds and directory-specific ignore patterns via JSON configuration.
- Offline license validation ensuring no telemetry or code is sent to external servers.
SKILL.md
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