# Sema

> Sema adds a content-addressed vocabulary of 452 cognitive patterns to Claude. Each pattern has a handle like StateLock5602 — a SHA-256 hash of its definition — so two agents using the same handle are provably talking about the same thing. Any divergence in meaning produces a different hash, making silent misalignment impossible. Key features: - semasearch — semantic + keyword search across the pattern library • semaresolve — full definition, mechanism, invariants, and dependency graph for a

## Facts
- Page: https://tashan.sh/capability/plugin-emergent-wisdom-sema-sema
- tashan id: plugin:emergent-wisdom/sema/sema
- Source: https://github.com/emergent-wisdom/sema
- Type: plugin
- Category: ai
- tashan score: 45.0 / 100
- Adoption: 20.0
- Upkeep: 74.0
- Freshness: 83.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: solid
- GitHub stars: 9
- License: MIT
- Official: no

## Install

```sh
/plugin marketplace add anthropics/claude-plugins-community
/plugin install sema@claude-community
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-09-13 by tashan (https://tashan.sh) from public evidence. Scorer s5.