# io.github.Shawn5cents/agentskin (npm · agentskin)

The Semantic Layer for AI Agents. Prunes noisy API data by 70%+ for token-efficient reasoning.

- Trust score: 60/100 (medium)
- Change this week: +14
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `agentskin`: 60/100 (this document), [markdown](https://verifymcp.io/servers/shawn5cents-agentskin/agentskin.md), [page](https://verifymcp.io/servers/shawn5cents-agentskin/agentskin)

## Channel facts

- Registry: `npm`
- Package: `agentskin`
- Version: `4.0.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 78/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known medium-severity CVE affects @hono/node-server 1.19.17, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (110 of 111), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 32/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: no license is declared.
  - Actively maintained (last published 7 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 57/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 165 tokens (~82/item across 2 items; 2 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add shawn5cents-agentskin -- npx -y agentskin
```

### Codex

```bash
codex mcp add shawn5cents-agentskin -- npx -y agentskin
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "shawn5cents-agentskin": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "agentskin"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add shawn5cents-agentskin --command npx --arg -y --arg agentskin
```

### Hermes

```yaml
mcp_servers:
  shawn5cents-agentskin:
    command: "npx"
    args: ["-y", "agentskin"]
```

### Other

```json
{
  "mcpServers": {
    "shawn5cents-agentskin": {
      "command": "npx",
      "args": [
        "-y",
        "agentskin"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 60, +55)

- [security regression] GHSA-frvp-7c67-39w9 affects this package: medium
- [security regression] Known CVEs: unverified → fail
- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [functional regression] License: unverified → fail
- [functional regression] Security disclosure: fail → unverified
- [functional improvement] Schema quality: unverified → fair
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] Tool coverage: unverified → 100

### 2026-08-01 (score 5, −23)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-31 (score 28, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (2)

### `fetch_optimized_data` (~110 tokens)

Fetches any API or Web URL and returns a 90% token-optimized 'Skin'. Supports BYOK (Bring Your Own Key) for private data.

Input parameters:

- `headers` (object): Optional: Custom HTTP headers (e.g. {'API-Key': 'your_key'}) for private data access.
- `signals` (array): Optional: Specific keys you are looking for (e.g. ['price', 'status']).
- `url` (string, required): The raw API or JSON URL to fetch.

### `skin_reasoning` (~55 tokens)

Optimizes natural language text for LLM-to-LLM communication by removing fillers, hedges, and redundant phrases. Increases 'Reasoning Density'.

Input parameters:

- `text` (string, required): The raw text or agent reasoning to optimize.

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/shawn5cents-agentskin/agentskin#diagnostics

## Score history

- 2026-08-03: 60
- 2026-08-02: 60
- 2026-08-01: 5
- 2026-07-31: 28
- 2026-07-30: 46
- 2026-07-28: 46
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/agentskin
- Socket report: https://socket.dev/npm/package/agentskin
- Repository: https://github.com/Shawn5cents/agentskin
- Changelog RSS feed: https://verifymcp.io/servers/shawn5cents-agentskin/agentskin/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/shawn5cents-agentskin/agentskin/changelog.json
- HTML version of this page: https://verifymcp.io/servers/shawn5cents-agentskin/agentskin