# Gcf

> The AI-native wire format for structured data. 50-92% fewer tokens than JSON, with multi-turn delta encoding for agent loops. 100% comprehension on every frontier model. Zero dependencies.

## Facts
- Page: https://tashan.sh/capability/pkg-blackwell-systems-gcf
- tashan id: pkg:@blackwell-systems/gcf
- Source: https://github.com/blackwell-systems/gcf-typescript
- npm: https://www.npmjs.com/package/@blackwell-systems/gcf
- Type: npm
- Category: other
- tashan score: 75.0 / 100
- Adoption: 64.0
- Upkeep: 70.0
- Freshness: 91.0
- Evidence coverage: 100% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- npm downloads: 40,378/week
- License: MIT
- Official: no

## Install

```sh
claude mcp add blackwell-systems-gcf -- npx -y @blackwell-systems/gcf
```

## Security audit
- Known advisories: 0
- Install-time script: none declared
- Build provenance: attested

Permissions are read from DECLARED dependencies only. Nothing is executed, so an empty result means "nothing declared", never "nothing possible".

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Measured 2026-09-12 by tashan (https://tashan.sh) from public evidence. Scorer s5.