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Install in OpenClaw
/install z
Description
Anti-skill-crawler defense system. Detects and mitigates unauthorized crawling, scraping, and bulk extraction of skill definitions, prompt content, and instr...
Usage Guidance
This README looks like a reasonable read-only crawler detector, but there are important gaps you should clear up before installing: 1) Confirm how alerts are delivered — if you plan to enable webhooks or email, require explicit configuration (webhook URLs, SMTP/API keys) and make sure those are declared and stored securely; prefer 'log' channel by default. 2) Verify platform permissions: ensure the platform-granted 'request_metadata_read' capability actually excludes IPs/PII as claimed, and confirm who can view the alerts. 3) Decide invocation policy: SKILL.md says operator-only, but registry flags allow autonomous invocation — if you want read-only/manual operation, make sure model invocation is disabled. 4) Ask the author for a clear mapping of which request-metadata fields are accessed (user-agent, timestamps, request-id, but not IPs or personal IDs). 5) Because this is instruction-only (no code), validate behavior in a controlled test environment before enabling any alert channels beyond local logs. If the author cannot provide concrete config instructions and permission descriptions, treat the skill as untrusted.
Capability Analysis
Type: OpenClaw Skill
Name: z
Version: 1.0.2
The skill 'z' is a passive monitoring utility designed to detect automated scraping or crawling of skill definitions. It operates by analyzing request metadata for anomalous patterns and alerting the operator, requesting only 'request_metadata_read' and 'alert_send' permissions. The logic is entirely transparent and documented in SKILL.md, with no evidence of malicious execution, data exfiltration, or unauthorized persistence.
Capability Assessment
Purpose & Capability
The SKILL.md describes a passive, read-only detector of 'skill-crawling' using request metadata — that purpose aligns with the described detection rules and examples. However, the doc advertises alert channels (webhook, email) and multi-platform support while the registry metadata lists no required env/config for delivering alerts or cross-platform integration. The skill thus claims capabilities (sending webhooks/email) that are not supported by declared configuration.
Instruction Scope
The runtime instructions are largely limited to read-only analysis of request metadata, which is consistent with the claimed scope. But the SKILL.md includes: (a) alert delivery channels (webhook/email) without specifying how endpoints/credentials are provided, (b) session-fingerprint/user-agent analysis which could rely on identifiers not explicitly enumerated as allowed, and (c) a claim that autonomous invocation is disabled while registry flags allow model invocation. These gaps create ambiguity about what data could be transmitted and when.
Install Mechanism
Instruction-only skill with no install spec and no code files — nothing is written to disk or downloaded. This is the lowest-risk install model.
Credentials
The skill declares no required environment variables or config paths, yet the configuration section permits alert channels including 'webhook' and 'email' which normally require URLs or credentials (webhook URL, SMTP server/API keys). The absence of declared env/config means either: alerts are expected to be log-only (safe), or the skill will be configured later with sensitive endpoints/credentials — the latter is not documented and is disproportionate to the stated read-only detection purpose.
Persistence & Privilege
The skill does not request persistent/always-on presence and documents no active countermeasures or response modification. That is appropriate. However, the SKILL.md explicitly states 'Autonomous: Disabled — operator must explicitly invoke' while registry-level flags indicate model invocation may be allowed; this mismatch affects the privilege surface and should be resolved.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install z - After installation, invoke the skill by name or use
/z - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.2
- No user-visible changes since the previous version.
- No file changes detected in this release.
v1.0.1
- Renamed the skill and updated its scope: z now focuses on detecting and defending against unauthorized crawling, scraping, and bulk extraction of skill definitions and prompt instructions.
- Completely replaced the documentation (SKILL.md) with a new description, overview, detection logic, alert format, permissions, capabilities, configuration, usage examples, and operating principles.
- Detection now targets skill-file access patterns, systematic enumeration, high-frequency skill reads, and prompt-extraction attempts, with only passive, read-only measures.
- All active countermeasures, response modifications, and caller tracing are permanently disabled; z only detects and alerts operators, leaving all actions to human decision.
- Alerts now use a structured JSON format and are configurable for log, webhook, or email channels.
- Clarified all permissions, excluded sensitive data access, and emphasized compliance, transparency, and operator control throughout.
v1.0.0
Anti-distillation skill 2.0.0: Passive request monitoring and alerting for knowledge distillation attempts.
- Implements passive detection of suspicious request patterns indicating potential knowledge distillation.
- Does not modify any responses or inject adversarial content—detection and alerting only.
- Provides configurable detection sensitivity, analysis windows, and alert channels (log, webhook, email).
- Accesses only non-identifying request metadata; does not read user identities or request/response bodies.
- Sends structured alerts to the operator for manual review and action.
Metadata
Frequently Asked Questions
What is z?
Anti-skill-crawler defense system. Detects and mitigates unauthorized crawling, scraping, and bulk extraction of skill definitions, prompt content, and instr... It is an AI Agent Skill for Claude Code / OpenClaw, with 134 downloads so far.
How do I install z?
Run "/install z" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is z free?
Yes, z is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does z support?
z is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created z?
It is built and maintained by enoyao (@wscats); the current version is v1.0.2.
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