# io.github.decantr-ai/mcp-server (npm · @decantr/mcp-server)

AI frontend governance for Contract context, graph artifacts, drift evidence, and repair prompts.

- Trust score: 72/100 (medium)
- Change this week: +26
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@decantr/mcp-server`: 72/100 (this document), [markdown](https://verifymcp.io/servers/decantr-ai-mcp-server/decantr-mcp-server.md), [page](https://verifymcp.io/servers/decantr-ai-mcp-server/decantr-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `@decantr/mcp-server`
- Version: `3.9.4`
- 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**: 99/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 3 of 11 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to decantr-ai/decantr).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 12 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 40/100
  - AI-judged instruction clarity (poor).
  - Tool/resource definitions use about 349 tokens (~43/item across 8 items; 8 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **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.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### Claude

```bash
claude mcp add decantr-ai-mcp-server -- npx -y @decantr/mcp-server
```

### Codex

```bash
codex mcp add decantr-ai-mcp-server -- npx -y @decantr/mcp-server
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add decantr-ai-mcp-server --command npx --arg -y --arg @decantr/mcp-server
```

### Hermes

```yaml
mcp_servers:
  decantr-ai-mcp-server:
    command: "npx"
    args: ["-y", "@decantr/mcp-server"]
```

### Other

```json
{
  "mcpServers": {
    "decantr-ai-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@decantr/mcp-server"
      ]
    }
  }
}
```

## 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.

### 2026-08-01 (score 72, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-07-31 (score 57, −9)

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

### 2026-07-30 (score 66, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-29 (score 84, +3)

- [functional improvement] Schema quality: unverified → poor

### 2026-07-28 (score 81, +35)

- [security improvement] Install scripts: unverified → pass
- [security improvement] Provenance: unverified → pass
- [security improvement] Known CVEs: unverified → pass
- [security] The attested source repository moved: decantr-ai/decantr
- [functional improvement] Dependency health: unverified → 0.93
- [functional improvement] License: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional] Licence: MIT

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

First indexed and scored.

## MCP tools (8)

### `decantr_project` (~39 tokens)

Decantr Project

Read local project state and workspace health without uploading source.

Input parameters:

- `action` (string, required): Action to run through this consolidated Decantr MCP tool.

### `decantr_contract` (~46 tokens)

Decantr Contract

Read, validate, drift-check, generate, or summarize the active Decantr contract.

Input parameters:

- `action` (string, required): Action to run through this consolidated Decantr MCP tool.

### `decantr_context` (~45 tokens)

Decantr Context

Read scaffold, section, page, task, and execution-pack context for agent work.

Input parameters:

- `action` (string, required): Action to run through this consolidated Decantr MCP tool.

### `decantr_graph` (~40 tokens)

Decantr Graph

Read, query, and traverse local typed Contract graph artifacts.

Input parameters:

- `action` (string, required): Action to run through this consolidated Decantr MCP tool.

### `decantr_registry` (~47 tokens)

Decantr Registry

Compatibility tool for searching the official Decantr content corpus, benchmark metadata, and execution packs.

Input parameters:

- `action` (string, required): Action to run through this consolidated Decantr MCP tool.

### `decantr_verify` (~43 tokens)

Decantr Verify

Run local verification reads, critique files, and return evidence or health findings.

Input parameters:

- `action` (string, required): Action to run through this consolidated Decantr MCP tool.

### `decantr_repair` (~44 tokens)

Decantr Repair

Read typed findings, repair plans, repair prompts, and health-loop guidance.

Input parameters:

- `action` (string, required): Action to run through this consolidated Decantr MCP tool.

### `decantr_contract_write` (~45 tokens)

Decantr Contract Write

Explicit write surface for accepting drift or mutating Essence v4 inside the workspace.

Input parameters:

- `action` (string, required): Action to run through this consolidated Decantr MCP tool.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/decantr-ai-mcp-server/decantr-mcp-server#diagnostics

## Score history

- 2026-08-03: 72
- 2026-08-02: 72
- 2026-08-01: 72
- 2026-07-31: 57
- 2026-07-30: 66
- 2026-07-29: 84
- 2026-07-28: 81
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/@decantr/mcp-server
- Socket report: https://socket.dev/npm/package/@decantr/mcp-server
- Repository: https://github.com/decantr-ai/decantr
- Changelog RSS feed: https://verifymcp.io/servers/decantr-ai-mcp-server/decantr-mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/decantr-ai-mcp-server/decantr-mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/decantr-ai-mcp-server/decantr-mcp-server