# Unicode Steganography Puzzles

> Use this tool when you need to create and manage steganography puzzles that hide messages within Unicode characters, solving problems related to educational challenges or security demonstrations involving hidden text. It takes input messages and configuration settings, and outputs encoded puzzles with configurable difficulty levels. Use it in contexts where you want to create interactive and engaging exercises for teaching cryptography or demonstrating text encoding techniques.

Canonical page: https://skillsregistry.net/skills/unicode-puzzles  
JSON: https://api.skillsregistry.net/v1/skills/unicode-puzzles

## Description

Unicode-Puzzles-MCP is a server implementation for creating and managing steganography puzzles that hide messages within Unicode characters. It integrates with symbl.cc to access specialized Unicode characters (including zero-width, quantum, and special categories) and provides endpoints for puzzle creation, encoding/decoding messages, and character searching. The server features template-based puzzle generation with configurable difficulty levels, rate-limited API access to external services, and persistent storage of puzzle metadata in MCP memory, making it particularly valuable for creating educational challenges or security demonstrations involving hidden text.

## Trust

- **Trust score (0–1):** 0.95
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** security
- **Updated:** 2026-09-28

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/unicode-puzzles)
- **Repository:** <https://github.com/vetcoders/unicode-puzzles-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "unicode-puzzles"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/unicode-puzzles` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/unicode-puzzles/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt