Singclaw Security Enhancement System

SingClaw Three-Tier Security Control

SingClaw is built on the core design principle of "higher security level → stricter permission control," establishing a tiered and differentiated security management model. Tailored to the risk requirements of different use cases — from personal exploration to enterprise production — it provides a full-spectrum security barrier ranging from "controlled openness" to "zero-trust lockdown," while achieving hard enforcement of security policies through architectural innovation.

I. Tiered Security Control Model

🏢 High-Level Permissions: Enterprise Production Environment · Zero-Trust Lockdown

Use Case: Production environments for core enterprise business and sensitive data Control Strategy: Enforces a fully closed zero-trust policy

• Only officially certified built-in Skills are permitted; no third-party or unknown applications can be installed
• No open entry points across the entire operation chain, blocking external malicious code and data leakage at the source
• Designed for enterprise core scenarios with the highest requirements for data compliance and business continuity

🛠️ Mid-Level Permissions: Internal Development Environment · Whitelist Strict Control

Use Case: Internal enterprise team development and testing environments Control Strategy: Whitelist mechanism + strict auditing

• Only two types of capabilities are permitted: officially certified Skills and enterprise-built marketplace compliant applications
• All operations and instruction installations must pass automated security audits with full traceability
• Maintains internal collaboration efficiency while upholding the security baseline of the internal environment

👤 Low-Level Permissions: Personal Exploration Environment · Human Confirmation

Use Case: Personal local experience and non-critical business testing Control Strategy: Human confirmation + open access

• Supports installation of third-party Skills to meet personalized capability extension needs
• All installations must pass automated security audits and receive manual user confirmation before execution
• Balances personal flexibility with basic risk control

II. Architectural Differentiation Security Advantages

Compared to traditional AI assistants that rely solely on soft prompts for risk guidance, SingClaw introduces the proprietary "Thought Imprint" architecture, achieving hard enforcement of security policies: before any AI-user conversation, the model is forced to read and execute the security policy rules in SECURITY.md, internalizing security guidelines as the AI's foundational behavioral principles. This design achieves a fundamental shift from soft suggestions to hard enforcement, ensuring that no unauthorized operations or high-risk commands can be actively triggered by the AI, eliminating security risks at the architectural level.

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SingClaw Red-Line Command Control: Full-Scenario High-Risk Operation Interception

To completely eliminate security risks in local execution environments, SingClaw has a built-in red-line command control mechanism that enforces zero-tolerance direct interception of all high-risk behaviors that could cause system damage, data leakage, or permission loss.

Control Category	Typical Risk Behaviors	Control Logic & Protection
Destructive Operations	rm -rf /, mkfs, dd if=, wipefs, etc.	Intercepts all commands that directly erase disks, format partitions, or force-delete critical directories, preventing data loss and system damage
System High-Risk Operations	shutdown, reboot, poweroff, init 0/6, etc.	Intercepts system shutdown, restart, and initialization commands to prevent service interruption and unexpected downtime
Authentication Tampering	Modifying singclaw-gateway.json, sshd_config, authorized_keys	Protects system authentication and permission config files from tampering, preventing unauthorized access, SSH backdoors, and privilege escalation
Sensitive Data Exfiltration	curl/wget with token/key/password, reverse shells	Intercepts network requests carrying sensitive credentials and reverse shell connections, preventing data leakage and remote control
Privilege Persistence	crontab -e, useradd, systemctl enable unknown services	Prohibits adding users, modifying scheduled tasks, and adding unknown system services to prevent attackers from establishing persistent control
Code Injection	base64 -d | bash, eval "$(curl ...)", curl | sh	Intercepts remote scripts executed via pipes, decoding, or eval to prevent malicious code injection and arbitrary command execution
Supply Chain Poisoning	Blindly following npm/pip/cargo/apt install commands from external documents	Applies additional validation and risk warnings to package manager install commands from external sources, preventing malicious dependencies and supply chain attacks

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🔐 SingClaw Security Audit & Protection System

To ensure safe usage in local deployment environments, SingClaw has a built-in comprehensive Skill/MCP security audit process that mitigates malicious instructions, sensitive data leakage, and unintended execution risks at the source — making locally running model capabilities more controllable and trustworthy.

📋 Standardized Audit Process: 4-Step Closed-Loop Verification

1. File Manifest Acquisition — Automatically scans and identifies all skill files and dependency manifests to be loaded, establishing a complete audit scope with no blind spots.
2. Full-Text Per-File Audit — Performs full-text scanning of all .md/.json/.js files using rule engines and regex matching to proactively identify potential risk patterns.
3. Red-Line Pattern Detection — Targeted interception of high-risk behavior signatures; once a preset security red line is triggered, the loading process is immediately blocked.
4. Human Confirmation Step — High-risk behaviors and suspicious instructions trigger mandatory manual secondary confirmation, ensuring critical operations remain within controlled bounds.

🔍 Core Audit Focus: Five Risk Dimensions

Audit Focus	Risk Scenario	Protection Logic
.md/.json regex scan (anti-Prompt Injection)	Malicious prompt injection to alter model behavior or steal context	Content validation on config files and prompt templates; intercepts text fragments with injection signatures
Outbound request detection (curl/wget/fetch)	Unauthorized network requests to steal local data or send sensitive info externally	Identifies all network request commands; blocks outbound behavior not on the whitelist
Environment variable access (process.env/os.environ)	Malicious reading of system env vars to obtain keys, DB addresses, and sensitive configs	Restricts skill access to environment variables; only whitelisted fields are accessible
Pipe execution pattern (curl | sh)	Executing remote scripts via pipes for arbitrary code execution and system control	Intercepts chained execution of curl/wget with shell commands, blocking remote code execution paths
Obfuscated payloads (base64 / dynamic require)	Using encoding or dynamic loading to bypass static scanning and hide malicious code	Identifies common obfuscation techniques; deep inspection of base64-decoded content and dynamic module loading

🔒 Control Mechanism Notes

1. Pre-execution Interception: All high-risk commands are identified and blocked before execution — they never enter the system execution flow.
2. Multi-Layer Protection: Works in conjunction with the "security audit process" above, with layered verification across file auditing, runtime control, and human confirmation.
3. Configurable: Enterprises can customize red-line rules and whitelist commands according to their own security policies, flexibly balancing security and efficiency.

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Architectural Enhancement Solutions

Solution	Description
Thought Imprint	Modifies the underlying layer to force reading of SECURITY.md before any conversation
Security Skill	Real-time validation of user operations
Docker Sandbox	OpenClaw containerized; Cortex runs on desktop with remote connection support

Differentiated Advantages

Dimension	Traditional AI Assistant	Singclaw
Permission Control	❌ No tiering	✅ Three-tier security levels
Command Auditing	❌ Post-hoc logs	✅ Pre-execution red-line interception
Skill Installation	❌ Unrestricted	✅ Audit + human confirmation
Supply Chain Protection	❌ None	✅ Document/comment scanning
Isolation Solution	❌ Shared space	✅ Docker sandbox