# io.github.emergent-wisdom/semahash

> Use this tool when you need to establish secure and semantic handshakes over a wide range of cognitive patterns, enabling fail-closed interactions and content-addressed semantics. It solves problems related to secure data exchange, authentication, and authorization, particularly in applications requiring high levels of semantic accuracy. The tool takes in cognitive patterns as input and outputs secure, content-addressed identifiers.

Canonical page: https://skillsregistry.net/skills/io-github-emergent-wisdom-semahash  
JSON: https://api.skillsregistry.net/v1/skills/io-github-emergent-wisdom-semahash

## Description

Content-addressed semantics: fail-closed handshakes over 452 cognitive patterns.

## Trust

- **Trust score (0–1):** 1.00
- **Verification tier:** verified
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 0.1.4
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-19

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.emergent-wisdom%2Fsemahash)
- **Repository:** <https://github.com/emergent-wisdom/sema>

## 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": "io-github-emergent-wisdom-semahash"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/io-github-emergent-wisdom-semahash` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/io-github-emergent-wisdom-semahash/pull`

---
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