# Unchore Defend (mcpb · unchore-defend.mcpb)

Grade a site's security headers with fixes and a badge; read logs or code for the defender.

- Trust score: 54/100 (low)
- Change this week: +9
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- mcpb · `unchore-defend.mcpb`: 54/100 (this document), [markdown](https://verifymcp.io/servers/smilemino-unchore-defend/unchore-defend.md), [page](https://verifymcp.io/servers/smilemino-unchore-defend/unchore-defend)

## Channel facts

- Registry: `mcpb`
- Package: `https://github.com/smilemino/unchore-defend/releases/download/v0.1.0/unchore-defend.mcpb`
- Transport: `stdio`
- SHA-256: `302a753ed7471077bbf76cfbda6806d01ad1ffd2f97f49deab664bed02664785`

## 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 2026-10-18.

- **Supply Chain Security**: 13/100
  - No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.
  - Known CVEs could not be checked: we found no dependency list to check in this bundle: either it runs a compiled binary, whose bundled manifests we do not read, or none of the package.json, requirements.txt, pyproject.toml or uv.lock files it ships for its runtime declares a dependency we can read (a requirements.txt that only points at a setup.py project, a local path, or a nested requirements file we cannot follow counts as none).
  - No install/post-install scripts declared.
  - Dependency health could not be checked: we found no dependency list to check in this bundle: either it runs a compiled binary, whose bundled manifests we do not read, or none of the package.json, requirements.txt, pyproject.toml or uv.lock files it ships for its runtime declares a dependency we can read (a requirements.txt that only points at a setup.py project, a local path, or a nested requirements file we cannot follow counts as none).
- **Provenance & Transparency**: 48/100
  - 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 17 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 76/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 238 tokens (~119/item across 2 items; 2 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 60/100
  - Stability observed for 18 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 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 3 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 Unchore Defend MCP server?

Unchore Defend ships as an MCPB bundle, a single file you download and open in an MCP host that supports MCPB bundles, such as Claude Desktop. The host reads the launch command from the bundle's own manifest, so there is no command to copy. Before opening it, check the file's SHA-256 matches the one the MCP registry declares for it, 302a753ed7471077bbf76cfbda6806d01ad1ffd2f97f49deab664bed02664785; the commands to do that are on this page. If it does not match, do not open it.

- Download bundle: `https://github.com/smilemino/unchore-defend/releases/download/v0.1.0/unchore-defend.mcpb`
- SHA-256: `302a753ed7471077bbf76cfbda6806d01ad1ffd2f97f49deab664bed02664785`

### Verify on macOS / Linux

```bash
echo "302a753ed7471077bbf76cfbda6806d01ad1ffd2f97f49deab664bed02664785  unchore-defend.mcpb" | shasum -a 256 -c
```

### Verify on Windows (PowerShell)

```powershell
(Get-FileHash -Algorithm SHA256 .\unchore-defend.mcpb).Hash -eq "302a753ed7471077bbf76cfbda6806d01ad1ffd2f97f49deab664bed02664785"
```

## 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.

### 2026-10-18 (score 54, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-16 (score 53, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-14 (score 52, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-13 (score 51, +6)

- [functional improvement] Stability: unverified → 0.43

### 2026-09-30 (score 45)

First indexed and scored.

## MCP tools (2)

### `site_check` (~64 tokens)

Website security headers check

Grade a public website's security headers and cookie flags (A–F, 0–100) with the one-line fix for each gap and a README badge. Sends one GET to the site only.

Input parameters:

- `url` (string, required): Site address, e.g. example.com

### `defend_analyze` (~147 tokens)

Security analysis for defenders

Read a log, code, config or suspicious message and say what happened, how bad it is and what to fix first. Personal data and secrets are masked before sending. If one AI refuses, the next answers (Claude → GPT → GLM → DeepSeek). Needs UNCHORE_TOKEN or OPENROUTER_API_KEY.

Input parameters:

- `chain` (string): Order of AIs, e.g. 'claude,gpt,glm,deepseek' (optional)
- `evidence` (string): Log lines, code or the message to analyse (optional)
- `question` (string, required): The question in plain words, e.g. 'Who got in and what did they take?'

## Diagnostics

Captured diagnostic sections: Provenance. The full working is on the page: https://verifymcp.io/servers/smilemino-unchore-defend/unchore-defend#diagnostics

## Score history

- 2026-10-18: 54
- 2026-10-17: 53
- 2026-10-16: 53
- 2026-10-15: 52
- 2026-10-14: 52
- 2026-10-13: 51
- 2026-10-12: 45
- 2026-10-10: 45
- 2026-10-07: 45
- 2026-10-04: 45
- 2026-10-03: 45
- 2026-10-02: 45
- 2026-10-01: 45
- 2026-09-30: 45

## Common questions

### What is the Unchore Defend MCP server?

Unchore Defend is an MCP server listed in the public MCP registry as io.github.smilemino/unchore-defend. Grade a site's security headers with fixes and a badge; read logs or code for the defender. This page covers its MCPB bundle (https://github.com/smilemino/unchore-defend/releases/download/v0.1.0/unchore-defend.mcpb).

### Is the Unchore Defend MCP server safe to use?

Unchore Defend scores 54 out of 100 on VerifyMCP. 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 Unchore Defend MCP server expose?

Unchore Defend exposes 2 tools: site_check, defend_analyze. Their descriptions and schemas cost roughly 211 tokens of context every time the server is loaded.

### What licence is the Unchore Defend MCP server under?

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

## Links

- Repository: https://github.com/smilemino/unchore-defend
- Changelog RSS feed: https://verifymcp.io/servers/smilemino-unchore-defend/unchore-defend.xml
- Changelog JSON feed: https://verifymcp.io/servers/smilemino-unchore-defend/unchore-defend.json
- HTML version of this page: https://verifymcp.io/servers/smilemino-unchore-defend/unchore-defend