# io.github.SemanticDataCharter/sdccdif (pypi · sdccdif)

CODATA CDIF descriptions of published Semantic Data Charter models; read-only, no account.

- Trust score: 89/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- pypi · `sdccdif`: 89/100 (this document), [markdown](https://verifymcp.io/servers/semanticdatacharter-sdccdif/sdccdif.md), [page](https://verifymcp.io/servers/semanticdatacharter-sdccdif/sdccdif)

## Channel facts

- Registry: `pypi`
- Package: `sdccdif`
- Version: `4.1.1`
- 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 2026-11-05.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs setuptools.build_meta at install time, a recognised build step with no custom scripting around it.
  - 0 of 7 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to SemanticDataCharter/sdc_cdif).
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 10 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 64/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 310 tokens (~310/item across 1 items; 1 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 73/100
  - Stability observed for 22 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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the io.github.SemanticDataCharter/sdccdif MCP server?

io.github.SemanticDataCharter/sdccdif runs locally as a PyPI package, launched with uvx sdccdif 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 semanticdatacharter-sdccdif -- uvx sdccdif mcp
```

### Cursor

```json
{
  "mcpServers": {
    "semanticdatacharter-sdccdif": {
      "command": "uvx",
      "args": [
        "sdccdif",
        "mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "semanticdatacharter-sdccdif": {
      "command": "uvx",
      "args": [
        "sdccdif",
        "mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add semanticdatacharter-sdccdif -- uvx sdccdif mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "semanticdatacharter-sdccdif": {
      "type": "local",
      "command": [
        "uvx",
        "sdccdif",
        "mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add semanticdatacharter-sdccdif --command uvx --arg sdccdif --arg mcp
```

### Hermes

```yaml
mcp_servers:
  semanticdatacharter-sdccdif:
    command: "uvx"
    args: ["sdccdif", "mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "semanticdatacharter-sdccdif": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "sdccdif",
        "mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add semanticdatacharter-sdccdif -t stdio -c uvx -a sdccdif mcp
```

### Other

```json
{
  "mcpServers": {
    "semanticdatacharter-sdccdif": {
      "command": "uvx",
      "args": [
        "sdccdif",
        "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.

### 2026-11-05 (score 89, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-11-04 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 73, −15)

- [security regression] Malware scan: pass → unverified

### 2026-11-02 (score 88, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-10-31 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 71, −15)

- [security regression] Malware scan: pass → unverified

### 2026-10-28 (score 86, +1)

- [functional] Package version: 4.1.0 → 4.1.1

### 2026-10-26 (score 85, +16)

- [security improvement] Malware scan: unverified → pass

## MCP tools (1)

### `write_cdif` (~233 tokens)

Write the CODATA CDIF description (JSON-LD: Discovery, Data Description with every variable, Codelists, and the sentinel domain for the sixteen exceptional values) of one published Semantic Data Charter model. The document cites the model's schema by URL and SHA-256. Validated in this package's CI with CDIF's own framing, JSON Schema and SHACL checks from a pinned snapshot.

Input parameters:

- `contact_email` (string): The publisher's contact e-mail; the package's declared default applies when omitted.
- `contact_name` (string): The publisher's contact point name; the package's declared default applies when omitted.
- `ct_id` (string): The model's identifier (CUID2) in the public catalog; the package is fetched from the host this server was started with.
- `date` (string): The catalog date, YYYY-MM-DD; today when omitted.
- `directory` (string): A package directory already on disk (dm-<ct>.jsonld and dm-<ct>.xsd, optionally catalog.json and versions.json). Give this or ct_id, not both.

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/semanticdatacharter-sdccdif/sdccdif#diagnostics

## Score history

- 2026-11-05: 89
- 2026-11-04: 74
- 2026-11-03: 73
- 2026-11-02: 88
- 2026-11-01: 72
- 2026-10-31: 72
- 2026-10-30: 71
- 2026-10-29: 86
- 2026-10-28: 86
- 2026-10-27: 85
- 2026-10-26: 85
- 2026-10-25: 69
- 2026-10-24: 84
- 2026-10-23: 83
- 2026-10-22: 83
- 2026-10-21: 79
- 2026-10-20: 79
- 2026-10-19: 79
- 2026-10-18: 79
- 2026-10-17: 79
- 2026-10-16: 79
- 2026-10-15: 79
- 2026-10-14: 79
- 2026-10-13: 49

## Common questions

### What is the io.github.SemanticDataCharter/sdccdif MCP server?

io.github.SemanticDataCharter/sdccdif is an MCP server listed in the public MCP registry as io.github.SemanticDataCharter/sdccdif. CODATA CDIF descriptions of published Semantic Data Charter models; read-only, no account. This page covers its PyPI package (sdccdif).

### Is the io.github.SemanticDataCharter/sdccdif MCP server safe to use?

io.github.SemanticDataCharter/sdccdif scores 89 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. Its build provenance is signed and verified. 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 io.github.SemanticDataCharter/sdccdif MCP server expose?

io.github.SemanticDataCharter/sdccdif exposes 1 tool: write_cdif. Their descriptions and schemas cost roughly 233 tokens of context every time the server is loaded.

### Is the io.github.SemanticDataCharter/sdccdif MCP server still maintained?

io.github.SemanticDataCharter/sdccdif is still listed as active in the MCP registry. We last reached this channel on 5 November 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 io.github.SemanticDataCharter/sdccdif MCP server under?

io.github.SemanticDataCharter/sdccdif declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

### What did VerifyMCP test on the io.github.SemanticDataCharter/sdccdif MCP server?

VerifyMCP ran 16 checks on io.github.SemanticDataCharter/sdccdif, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to a PyPI package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- PyPI project: https://pypi.org/project/sdccdif/
- Socket report: https://socket.dev/pypi/package/sdccdif
- Repository: https://github.com/SemanticDataCharter/sdc_cdif
- Changelog RSS feed: https://verifymcp.io/servers/semanticdatacharter-sdccdif/sdccdif.xml
- Changelog JSON feed: https://verifymcp.io/servers/semanticdatacharter-sdccdif/sdccdif/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/semanticdatacharter-sdccdif/sdccdif.json
- HTML version of this page: https://verifymcp.io/servers/semanticdatacharter-sdccdif/sdccdif