# Purify Security Feeds (oci · ghcr.io/eason4kim-rocket/purify-feeds-mcp:1.0.1)

Query CISA KEV / EPSS vulnerability feeds with full per-record provenance and auditable versions

- Trust score: 39/100 (low)
- Change this week: −1
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- oci · `ghcr.io/eason4kim-rocket/purify-feeds-mcp:1.0.1`: 39/100 (this document), [markdown](https://verifymcp.io/servers/eason4kim-rocket-purify-feeds-mcp/ghcr-io-eason4kim-rocket-purify-feeds-mcp-1-0-1.md), [page](https://verifymcp.io/servers/eason4kim-rocket-purify-feeds-mcp/ghcr-io-eason4kim-rocket-purify-feeds-mcp-1-0-1)

## Channel facts

- Registry: `oci`
- Package: `ghcr.io/eason4kim-rocket/purify-feeds-mcp:1.0.1`
- 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**: 0/100
  - Malware scan not yet available for this package.
  - CVE data not yet available for this package.
  - Install-script risk not yet assessed.
  - Dependency-health data not yet available.
- **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 (MIT).
  - Actively maintained (last published 25 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 436 tokens (~109/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 83/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 50% 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 eason4kim-rocket-purify-feeds-mcp -- docker run --rm -i ghcr.io/eason4kim-rocket/purify-feeds-mcp:1.0.1
```

### Codex

```bash
codex mcp add eason4kim-rocket-purify-feeds-mcp -- docker run --rm -i ghcr.io/eason4kim-rocket/purify-feeds-mcp:1.0.1
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "eason4kim-rocket-purify-feeds-mcp": {
      "type": "local",
      "command": [
        "docker",
        "run",
        "--rm",
        "-i",
        "ghcr.io/eason4kim-rocket/purify-feeds-mcp:1.0.1"
      ],
      "enabled": true
    }
  }
}
```

### Hermes

```yaml
mcp_servers:
  eason4kim-rocket-purify-feeds-mcp:
    command: "docker"
    args: ["run", "--rm", "-i", "ghcr.io/eason4kim-rocket/purify-feeds-mcp:1.0.1"]
```

### Other

```json
{
  "mcpServers": {
    "eason4kim-rocket-purify-feeds-mcp": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/eason4kim-rocket/purify-feeds-mcp:1.0.1"
      ]
    }
  }
}
```

## 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 39, +3)

- [functional improvement] Stability: unverified → 0.20

### 2026-07-31 (score 36, −4)

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

### 2026-07-27 (score 40, +29)

- [functional improvement] Tool coverage: unverified → 100
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: good
- [functional] First check of Schema quality: pass
- [functional] First check of Tool coverage: 50

### 2026-07-26 (score 11)

First indexed and scored.

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

## MCP tools (4)

### `check_feed_changed` (~79 tokens)

Cheap incremental primitive for agent loops: compare a previously seen feed version hash against the current one. Returns changed=false if nothing new, else the new artifact hash / run id / record count to re-query.

Input parameters:

- `feed` (string, required): feed name
- `known_hash` (string): artifact hash from a previous response; empty returns the current version

### `get_provenance` (~109 tokens)

Return the data passport of records matching a cve_id in a feed: the per-record _purify block (source, fetch time, extractor, raw artifact hash/URI) plus the feed's run chain (spec, run id, dataset artifact hash). Use this to cite or audit any answer derived from the feeds.

Input parameters:

- `cve_id` (string, required): exact CVE id, e.g. CVE-2026-45659
- `feed` (string, required): feed name

### `list_feeds` (~56 tokens)

List the available Purify security-intelligence feeds with their current version (dataset artifact hash), record count, last run time and fields. Feeds are continuously scheduled, quality-gated and self-healing; every record carries full provenance.

### `search_feed` (~192 tokens)

Query one Purify security feed. Filters combine with AND; ops: ==, !=, >=, >, <=, <, contains. epss/percentile compare numerically, dates as ISO strings. Returns JSON with the feed version (artifact hash), exact total_matched, and up to 50 records (sort with sort_by/order, trim with fields/limit). Use total_matched for counting; narrow filters when a result is capped. Feeds: 'kev' (CISA Known Exploited Vulnerabilities), 'enriched' (EPSS+KEV joined), 'epss' (EPSS high-risk).

Input parameters:

- `feed` (string, required): feed name, e.g. kev | enriched | epss
- `fields` (array)
- `filters` (array)
- `limit` (integer)
- `order` (string)
- `sort_by` (string)

## Diagnostics

Captured diagnostic sections: Provenance. The full working is on the page: https://verifymcp.io/servers/eason4kim-rocket-purify-feeds-mcp/ghcr-io-eason4kim-rocket-purify-feeds-mcp-1-0-1#diagnostics

## Score history

- 2026-08-03: 39
- 2026-08-02: 39
- 2026-08-01: 36
- 2026-07-31: 36
- 2026-07-30: 40
- 2026-07-29: 40
- 2026-07-28: 40
- 2026-07-27: 40
- 2026-07-26: 11

## Links

- Repository: https://github.com/eason4kim-rocket/purify-feeds-mcp
- Changelog RSS feed: https://verifymcp.io/servers/eason4kim-rocket-purify-feeds-mcp/ghcr-io-eason4kim-rocket-purify-feeds-mcp-1-0-1/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/eason4kim-rocket-purify-feeds-mcp/ghcr-io-eason4kim-rocket-purify-feeds-mcp-1-0-1/changelog.json
- HTML version of this page: https://verifymcp.io/servers/eason4kim-rocket-purify-feeds-mcp/ghcr-io-eason4kim-rocket-purify-feeds-mcp-1-0-1