# `uk.co.reliness/uk-roads-traffic` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/uk.co.reliness/uk-roads-traffic
- JSON: https://anlyon.dev/api/v1/servers/uk.co.reliness/uk-roads-traffic
- Version: 1.5.0 (active)
- Publisher: uk.co.reliness (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-11-07T00:18:15.184Z

Title and description, as the publisher wrote them:

```untrusted-server-text
UK Data: GB road traffic counts (DfT)
Great Britain road traffic counts from the DfT: count points, vehicles per day by type, hourly
```

Scanned 2026-11-07T00:18:58.483Z over streamable-http.

**6 tools: 3 change things and 3 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 3 | ask |
| Only reads | read | 3 | allow |

## Exfil surface

No private-data -> untrusted-input -> outbound path in this server alone: no tool is tagged private-data or outbound.

| Tag | Meaning | Tools |
| --- | --- | --- |
| private-data | Reads files, mail, messages, databases, secrets, calendars or repositories. | none |
| untrusted-input | Brings in text someone else can write: web pages, inbound email, messages, issues and comments. | `mcp__uk-roads-traffic__local_authority_traffic_totals` `mcp__uk-roads-traffic__region_traffic_by_vehicle_type` `mcp__uk-roads-traffic__road_traffic_flow_at_point` `mcp__uk-roads-traffic__road_traffic_hourly_counts` `mcp__uk-roads-traffic__traffic_local_authority_find` `mcp__uk-roads-traffic__traffic_regions_list` |
| outbound | Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL. | none |

## Findings

- **warn** Annotations that disagree with the tool in `region_traffic_by_vehicle_type` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "region_traffic_by_vehicle_type" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "region_traffic_by_vehicle_type" says "type": a word for a change.
```


## Changes things (3)

Creates or changes something that can be changed back. Claude Code: ask.

### `local_authority_traffic_totals`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Tag untrusted-input: The server marks it openWorldHint: true: it reaches things outside the server's own data.

Description, as the server wrote it:

```untrusted-server-text
Gives the total distance driven on all roads in one GB council area each year, in million vehicle miles (and vehicle km), for all motor vehicles and for cars and taxis, plus the area's road length, newest year first. Answers "how much traffic is there in Leeds and is it growing" for council officers, net-zero and carbon plans, and consultants comparing areas. Minor-road traffic is a DfT estimate; this endpoint does not split vans, HGVs or buses (use region_traffic_by_vehicle_type for that at region level). (cost: 1 credit)
```

### `region_traffic_by_vehicle_type`

- The name "region_traffic_by_vehicle_type" says "type": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Tag untrusted-input: The server marks it openWorldHint: true: it reaches things outside the server's own data.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Gives annual traffic in one GB region (English regions, Scotland or Wales) by vehicle type, in million vehicle miles: cars and taxis, vans, HGVs, buses and coaches, motorcycles and pedal cycles, plus road length, newest year first. Useful for market sizing (for example van or HGV traffic for fleet services), journalism and coursework. Regional totals only; for a single council use local_authority_traffic_totals, and for one road use road_traffic_flow_at_point. (cost: 1 credit)
```

### `road_traffic_flow_at_point`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Tag untrusted-input: The server marks it openWorldHint: true: it reaches things outside the server's own data.

Description, as the server wrote it:

```untrusted-server-text
Gives average annual daily flow (AADF) at one DfT count point: the average number of vehicles passing per day over a year, both directions together, split into cars and taxis, vans, HGVs, buses, motorbikes and pedal cycles, newest year first. Answers "how many cars pass this site a day" and "is traffic on this road rising" for shop, billboard, EV charger or planning work. Some years are estimated by DfT rather than counted, and each row says which; it does not cover live traffic or congestion. (cost: 1 credit)
```

## Only reads (3)

Looks things up and changes nothing. Claude Code: allow.

### `road_traffic_hourly_counts`

- The name "road_traffic_hourly_counts" says "count": a word for reading.
- Tag untrusted-input: The server marks it openWorldHint: true: it reaches things outside the server's own data.

Description, as the server wrote it:

```untrusted-server-text
Returns the hour-by-hour manual traffic counts DfT recorded at one count point on its survey day, by direction of travel, with each direction's busiest hour and 12-hour total. Answers peak-hour questions such as "how busy is this road at 8am" for transport consultants and planning statements. Counts cover one weekday between 07:00 and 19:00 in the survey year, not averages or night-time, and many points are only surveyed every few years. (cost: 1 credit)
```

### `traffic_local_authority_find`

- The name "traffic_local_authority_find" says "find": a word for reading.
- Tag untrusted-input: The server marks it openWorldHint: true: it reaches things outside the server's own data.

Description, as the server wrote it:

```untrusted-server-text
Finds the DfT local authority id, ONS code and region for a council from its name (partial names work, e.g. "Leeds", "Bristol", "Kingston"), or from an ONS code such as E08000035. Use it before local_authority_traffic_totals or traffic_count_points_in_council. Covers Great Britain councils as DfT lists them, including some former councils kept for older years; it is not a postcode lookup. (cost: 1 credit)
```

### `traffic_regions_list`

- The name "traffic_regions_list" says "list": a word for reading.
- Tag untrusted-input: The server marks it openWorldHint: true: it reaches things outside the server's own data.

Description, as the server wrote it:

```untrusted-server-text
Lists the 11 Great Britain regions DfT uses for traffic statistics (the nine English regions, Scotland and Wales) with their DfT region ids, ONS codes and country. Use it to get the region_id for region_traffic_by_vehicle_type. Northern Ireland is not covered by DfT road traffic statistics. (cost: 1 credit)
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `uk-roads-traffic`:

```json
{
  "permissions": {
    "allow": [
      "mcp__uk-roads-traffic__road_traffic_hourly_counts",
      "mcp__uk-roads-traffic__traffic_local_authority_find",
      "mcp__uk-roads-traffic__traffic_regions_list"
    ],
    "ask": [
      "mcp__uk-roads-traffic__road_traffic_flow_at_point",
      "mcp__uk-roads-traffic__local_authority_traffic_totals",
      "mcp__uk-roads-traffic__region_traffic_by_vehicle_type"
    ],
    "deny": []
  }
}
```

Capability tags behind the rules (a read tagged outbound is asked about):

- `mcp__uk-roads-traffic__road_traffic_flow_at_point`: untrusted-input
- `mcp__uk-roads-traffic__road_traffic_hourly_counts`: untrusted-input
- `mcp__uk-roads-traffic__local_authority_traffic_totals`: untrusted-input
- `mcp__uk-roads-traffic__region_traffic_by_vehicle_type`: untrusted-input
- `mcp__uk-roads-traffic__traffic_local_authority_find`: untrusted-input
- `mcp__uk-roads-traffic__traffic_regions_list`: untrusted-input

## Remote posture

What an anonymous client saw at the remote endpoint, last 2026-11-14T12:24:08.788Z, unchanged since 2026-11-07T05:22:48.236Z. No credentials were sent and no tool was called. Values are shown as the endpoint returned them. Method: https://anlyon.dev/methodology#remote-posture

| Fact | Observed |
| --- | --- |
| Reachable | `yes` |
| HTTP status of an anonymous initialize | `200` |
| tools/list served without credentials | `yes` |
| Tools that change things, listed without credentials | `3` |
| Protocol version | `2025-06-18` |
| WWW-Authenticate on 401 | `not observed` |
| resource_metadata in WWW-Authenticate | `none` |
| RFC 9728 protected resource metadata | `none` |
| Authorization servers | `none` |
| Legacy HTTP+SSE transport | `no` |
| Dynamic client registration | `not observed` |
| Client ID metadata documents | `not observed` |

- **warn** Tools that change things, listed to anyone ([unauth-remote-writes](https://anlyon.dev/methodology#unauth-remote-writes))

```untrusted-server-text
The endpoint served tools/list without credentials, and the list has 3 tools that change things (3 write). Whether a call also works without credentials was not tested: tools are never called.

https://ukdata.reliness.co.uk/mcp/uk-roads-traffic: tools/list returned 6 tools to an anonymous client, including road_traffic_flow_at_point (write), local_authority_traffic_totals (write), region_traffic_by_vehicle_type (write)
```