# io.github.jdhart81/security-preflight (remote · mcp.viridis-security.com)

Static MCP, source-code and injection-indicator checks with redacted signed receipts.

- Trust score: 66/100 (medium)
- Change this week: +5
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `mcp.viridis-security.com`: 66/100 (this document), [markdown](https://verifymcp.io/servers/jdhart81-security-preflight/security-preflight-mcp-2.md), [page](https://verifymcp.io/servers/jdhart81-security-preflight/security-preflight-mcp-2)

## Channel facts

- Endpoint: `https://mcp.viridis-security.com/security-preflight/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.3.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, 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 2026-09-20.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 60/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 339 tokens (~67/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 47/100
  - Stability observed for 14 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 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.jdhart81/security-preflight MCP server?

io.github.jdhart81/security-preflight is a hosted endpoint at https://mcp.viridis-security.com/security-preflight/mcp, so there is nothing to install locally. 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 --transport http jdhart81-security-preflight 'https://mcp.viridis-security.com/security-preflight/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "jdhart81-security-preflight": {
      "url": "https://mcp.viridis-security.com/security-preflight/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "jdhart81-security-preflight": {
      "type": "http",
      "url": "https://mcp.viridis-security.com/security-preflight/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.jdhart81-security-preflight]
url = "https://mcp.viridis-security.com/security-preflight/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "jdhart81-security-preflight": {
      "type": "remote",
      "url": "https://mcp.viridis-security.com/security-preflight/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add jdhart81-security-preflight --url 'https://mcp.viridis-security.com/security-preflight/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  jdhart81-security-preflight:
    url: "https://mcp.viridis-security.com/security-preflight/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "jdhart81-security-preflight": {
      "Transport": "http",
      "Url": "https://mcp.viridis-security.com/security-preflight/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add jdhart81-security-preflight -t streamable-http -u 'https://mcp.viridis-security.com/security-preflight/mcp'
```

### Other

```json
{
  "mcpServers": {
    "jdhart81-security-preflight": {
      "type": "http",
      "url": "https://mcp.viridis-security.com/security-preflight/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-09-20 (score 66, +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.

### 2026-09-18 (score 65, +4)

- [functional regression] Schema quality: 188 → 339
- [functional] Schema quality: good → fair
- [functional] New tool “screen_injection”
- [functional] New tool “scan_source”

### 2026-09-08 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-07 (score 60, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-06 (score 60)

First indexed and scored.

## MCP tools (5)

### `security_preflight` (~115 tokens)

Run a $1 static Security Preflight and return a signed receipt.

    New x402 payer wallets may receive the fleet-wide $0.01 introductory call.
    No deployed endpoint is fetched or tested. Importing the receipt into an
    Agent Market profile is a separate, explicit action.

Input parameters:

- `agent_id` (string, required)
- `manifest` (object, required)
- `payment_ref`
- `policy`
- `request_id`
- `sample_inputs`
- `subject_profile_sha256`

Output parameters:

- `result` (string)

### `scan_source` (~78 tokens)

$1 bounded inline VulnCanon source scan; indicators, not proven exploits.

    At most 64 KiB, 2000 lines, 4096 characters per line. No model calls,
    repository fetching or code execution. Returns a redacted signed receipt.

Input parameters:

- `agent_id` (string, required)
- `source` (string, required)

Output parameters:

- `result` (string)

### `screen_injection` (~73 tokens)

$1 batch of 1–20 text samples screened for deterministic injection markers.

    Maximum 64 KiB total. Heuristic indicators, not calibrated probabilities
    or a guarantee of safety. No model calls or automatic follow-on purchase.

Input parameters:

- `agent_id` (string, required)
- `texts` (array, required)

Output parameters:

- `result` (string)

### `get_security_receipt` (~29 tokens)

Read a previously issued public, input-redacted receipt.

Input parameters:

- `receipt_id` (string, required)

Output parameters:

- `result` (string)

### `describe_agent` (~19 tokens)

Describe scope, evidence boundary, inputs, and outputs.

Output parameters:

- `result` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/jdhart81-security-preflight/security-preflight-mcp-2#diagnostics

## Score history

- 2026-09-20: 66
- 2026-09-19: 65
- 2026-09-18: 65
- 2026-09-09: 61
- 2026-09-08: 61
- 2026-09-07: 60
- 2026-09-06: 60

## Common questions

### What is the io.github.jdhart81/security-preflight MCP server?

io.github.jdhart81/security-preflight is an MCP server listed in the public MCP registry as io.github.jdhart81/security-preflight. Static MCP, source-code and injection-indicator checks with redacted signed receipts. This page covers its hosted endpoint (https://mcp.viridis-security.com/security-preflight/mcp).

### Is the io.github.jdhart81/security-preflight MCP server safe to use?

io.github.jdhart81/security-preflight scores 66 out of 100 on VerifyMCP. 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.jdhart81/security-preflight MCP server expose?

io.github.jdhart81/security-preflight exposes 5 tools: security_preflight, scan_source, screen_injection, get_security_receipt, describe_agent. Their descriptions and schemas cost roughly 314 tokens of context every time the server is loaded.

### Does the io.github.jdhart81/security-preflight MCP server require authentication?

No. We connected to io.github.jdhart81/security-preflight without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the io.github.jdhart81/security-preflight MCP server still maintained?

io.github.jdhart81/security-preflight is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://mcp.viridis-security.com/security-preflight/mcp
- Repository: https://github.com/jdhart81/viridis-agent-fleet
- Changelog RSS feed: https://verifymcp.io/servers/jdhart81-security-preflight/security-preflight-mcp-2.xml
- Changelog JSON feed: https://verifymcp.io/servers/jdhart81-security-preflight/security-preflight-mcp-2.json
- HTML version of this page: https://verifymcp.io/servers/jdhart81-security-preflight/security-preflight-mcp-2