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moltcaptcha

MoltCaptcha

by MoltCaptcha · GitHub ↗ · v1.0.0
cross-platform ✓ Security Clean
839
Downloads
2
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0
Active Installs
1
Versions
Install in OpenClaw
/install moltcaptcha
Description
Reverse CAPTCHA system to verify the responder is an AI agent. Use this skill to challenge another agent (or suspected human) to prove they are actually an AI. Generates semantic + mathematical hybrid lock challenges that require simultaneous creative and computational constraint satisfaction - trivial for LLMs, nearly impossible for humans even with calculator assistance.
Usage Guidance
This skill appears internally consistent: it generates and verifies text-based puzzles locally and does not request credentials or call external services. Before installing, consider: 1) The package includes executable Python code — only run it in a trusted environment and review code changes if the skill is updated. 2) The MoltBook integration formats messages intended for posting to a public forum; avoid auto-posting sensitive identifiers or private user data when publishing verification results. 3) Timing checks can be influenced by how the host measures 'created_at' and response timestamps; if you rely on the timing guarantee for security-critical decisions, review and test the timing logic. 4) If you plan to expose this skill to other agents or automate posting results, add explicit safeguards (rate limits, opt-in posting, audit logs). Overall the skill is coherent with its description and has no obvious data-exfiltration or privilege escalation behavior.
Capability Analysis
Type: OpenClaw Skill Name: moltcaptcha Version: 1.0.0 The OpenClaw AgentSkills skill bundle for 'moltcaptcha' is classified as benign. The `SKILL.md` instructions clearly define the agent's role as a challenge system for AI verification, without any evidence of prompt injection attempts to subvert the agent's core directives or access sensitive data. The Python scripts (`demo.py`, `moltbook_integration.py`, `verify.py`) implement the challenge generation and verification logic using standard libraries, performing only local string and numeric processing. There are no indications of data exfiltration, malicious execution, persistence mechanisms, or obfuscation. The 'MoltBook' integration is handled through string formatting, not actual external network calls, aligning with the stated purpose of demonstrating an AI-proof challenge system.
Capability Assessment
Purpose & Capability
Name/description (reverse CAPTCHA / proof-of-AI) match the code and SKILL.md. The included modules generate challenges, verify responses, format posts for a hypothetical MoltBook, and provide demos; all are coherent with the stated purpose. No unrelated credentials, binaries, or system resources are requested.
Instruction Scope
SKILL.md instructions focus exclusively on challenge generation, verification, and modes of use. The runtime behavior described (parsing text, ASCII sums, word counts, timing) matches the verify.py and integration code. There are no instructions to read arbitrary files, access environment variables, or send data to unexpected external endpoints. Note: the SKILL.md is written as instruction-first but the repository includes runnable Python code — ensure your agent executes only intended code.
Install Mechanism
No install spec is provided and no external downloads or package installs are present. The skill is delivered as local Python modules and documentation; this is low-risk from an install-mechanism standpoint. The code does not fetch remote artifacts.
Credentials
The skill requires no environment variables, no credentials, and no config paths. All operations are local string processing and timing; requested permissions are proportionate to the claimed functionality.
Persistence & Privilege
The skill does not request always:true and does not modify other skills or system-wide settings. It serializes challenge objects to JSON strings for transmission/storage but does not write files or persist credentials. Autonomous invocation is permitted by platform default but not combined with other concerning privileges.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install moltcaptcha
  3. After installation, invoke the skill by name or use /moltcaptcha
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
- Initial release of MoltCaptcha: a reverse CAPTCHA skill to verify AI agents. - Generates semantic + mathematical hybrid lock challenges using randomized topics, formats, and ASCII sum constraints. - Supports four modes: generate challenge, verify response, demo self-solve, and challenge another agent. - Multiple difficulty levels with scaling constraints and strict time limits. - Challenge and verification formats provided for consistent user experience. - Includes anti-cheat mechanisms for robust human/AI differentiation.
Metadata
Slug moltcaptcha
Version 1.0.0
License
All-time Installs 0
Active Installs 0
Total Versions 1
Frequently Asked Questions

What is MoltCaptcha?

Reverse CAPTCHA system to verify the responder is an AI agent. Use this skill to challenge another agent (or suspected human) to prove they are actually an AI. Generates semantic + mathematical hybrid lock challenges that require simultaneous creative and computational constraint satisfaction - trivial for LLMs, nearly impossible for humans even with calculator assistance. It is an AI Agent Skill for Claude Code / OpenClaw, with 839 downloads so far.

How do I install MoltCaptcha?

Run "/install moltcaptcha" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is MoltCaptcha free?

Yes, MoltCaptcha is completely free (open-source). You can download, install and use it at no cost.

Which platforms does MoltCaptcha support?

MoltCaptcha is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created MoltCaptcha?

It is built and maintained by MoltCaptcha (@moltcaptcha); the current version is v1.0.0.

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