# datuma_k (npm · @marthvon/datuma-k-mcp)

Query, validate, preview, and generate source from *.dtct data contracts and *.ngin templates.

- Trust score: 77/100 (medium)
- Change this week: +6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-24

## Components

- npm · `@marthvon/datuma-k-mcp`: 77/100 (this document), [markdown](https://verifymcp.io/servers/marthvon-datuma-k/marthvon-datuma-k-mcp.md), [page](https://verifymcp.io/servers/marthvon-datuma-k/marthvon-datuma-k-mcp)

## Channel facts

- Registry: `npm`
- Package: `@marthvon/datuma-k-mcp`
- Version: `1.0.0`
- 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 2026-09-24.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 0 of 3 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (AGPL-3.0-only).
  - Actively maintained (last published 12 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 82/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 519 tokens (~39/item across 13 items; 7 tools + 6 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 43/100
  - Stability observed for 13 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 87/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 62% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the datuma_k MCP server?

datuma_k runs locally as an npm package, launched with npx -y @marthvon/datuma-k-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add marthvon-datuma-k -- npx -y @marthvon/datuma-k-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "marthvon-datuma-k": {
      "command": "npx",
      "args": [
        "-y",
        "@marthvon/datuma-k-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "marthvon-datuma-k": {
      "command": "npx",
      "args": [
        "-y",
        "@marthvon/datuma-k-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add marthvon-datuma-k -- npx -y @marthvon/datuma-k-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add marthvon-datuma-k --command npx --arg -y --arg @marthvon/datuma-k-mcp
```

### Hermes

```yaml
mcp_servers:
  marthvon-datuma-k:
    command: "npx"
    args: ["-y", "@marthvon/datuma-k-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "marthvon-datuma-k": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@marthvon/datuma-k-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add marthvon-datuma-k -t stdio -c npx -a -y @marthvon/datuma-k-mcp
```

### Other

```json
{
  "mcpServers": {
    "marthvon-datuma-k": {
      "command": "npx",
      "args": [
        "-y",
        "@marthvon/datuma-k-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-09-24 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-22 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-19 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 74, +3)

- [functional improvement] Stability: unverified → 0.23

### 2026-09-12 (score 71, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-09-11 (score 56)

First indexed and scored.

## MCP tools (7)

### `list_project` (~52 tokens)

List datuma_k project

List .env directories and *.dtct, *.ngin, *.def.ngin, and keywords.md for a datuma_k project.

Input parameters:

- `root` (string): Project directory (defaults to the MCP process cwd)

### `query_contracts` (~95 tokens)

Query contracts

JSON catalog of dtct models, fields, traits, types, and attributes. Optional filters match dk.trait / dk.model / dk.field / dk.attribute / dk.type.

Input parameters:

- `attribute` (string)
- `field` (string)
- `model` (string)
- `root` (string): Project directory (defaults to the MCP process cwd)
- `trait` (string)
- `type` (string)

### `validate` (~63 tokens)

Validate project

Parse *.dtct / *.ngin / *.def.ngin and require a data/keywords.md table (kind, description, purpose, platforms) for every contract name. Does not write files.

Input parameters:

- `root` (string): Project directory (defaults to the MCP process cwd)

### `preview` (~43 tokens)

Preview generation

Plan generated files from ngin without committing. Returns planned paths and content. Does not write disk.

Input parameters:

- `root` (string): Project directory (defaults to the MCP process cwd)

### `generate` (~48 tokens)

Generate files

Run datuma_k run: commit planned files through dkcache. Overwrites text inside generated spans; keeps text between spans.

Input parameters:

- `root` (string): Project directory (defaults to the MCP process cwd)

### `advise_ngin` (~74 tokens)

Advise ngin vs handwritten

Decide whether a coding task should use the ngin template engine or stay handwritten. Use ngin when two or more platforms must stay in sync on contract-derived types, validation, or UI.

Input parameters:

- `platforms` (array, required): Where the result will ship
- `task` (string, required): What the agent wants to add or generate

### `infer_patterns` (~81 tokens)

Infer traits and attributes

Suggest shared Data/Enum traits, field attributes, and UI widgets from the contract. Flag unusual default-vocabulary pairings as association_suggestions (review notes, not errors). Flag single-platform sync risks. Map aliases like text_type to string. Does not write files or reject contracts.

Input parameters:

- `root` (string): Project directory (defaults to the MCP process cwd)

## Diagnostics

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

## Score history

- 2026-09-24: 77
- 2026-09-23: 76
- 2026-09-22: 76
- 2026-09-21: 75
- 2026-09-20: 75
- 2026-09-19: 75
- 2026-09-18: 74
- 2026-09-17: 71
- 2026-09-16: 71
- 2026-09-15: 71
- 2026-09-14: 71
- 2026-09-13: 71
- 2026-09-12: 71
- 2026-09-11: 56

## Common questions

### What is the datuma_k MCP server?

datuma_k is an MCP server listed in the public MCP registry as io.github.marthvon/datuma-k. Query, validate, preview, and generate source from *.dtct data contracts and *.ngin templates. This page covers its npm package (@marthvon/datuma-k-mcp).

### Is the datuma_k MCP server safe to use?

datuma_k scores 77 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 24 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the datuma_k MCP server expose?

datuma_k exposes 7 tools: list_project, query_contracts, validate, preview, generate, and 2 more. Their descriptions and schemas cost roughly 456 tokens of context every time the server is loaded.

### Is the datuma_k MCP server still maintained?

datuma_k is still listed as active in the MCP registry. We last reached this channel on 24 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the datuma_k MCP server under?

datuma_k declares the AGPL-3.0-only licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

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