# Clara — Personal Clean Air Planner

> UK personal air quality advice and daily exposure assessment. Pairs with Hermes for live data.

- name: com.southlondonscientific/clara
- version: 0.3.0
- connection class: R0 (autonomous)
- trust: 76/100 flags: no-repository
- quality: 76/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.southlondonscientific%2Fclara
- tools: https://api.protogrid.dev/v1/servers/com.southlondonscientific%2Fclara/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "clara": {
      "type": "http",
      "url": "https://clara-mcp.southlondonscientific.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 65
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% ~updated-168d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 76/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 64 (weight 30)

- pass `tools.descriptions`: every tool has a description
- warn `tools.description_length`: 1 tools have descriptions over 1,024 characters, which crowds the context
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: contextual_advice (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); exposure_assessment (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
- pass `tools.token_cost`: about 1,030 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 2, about 1,030 tokens to load them all
- tool set hash: 709eef4180fe8f6d43899475ebbaeefd
- badge: [![protogrid quality](https://protogrid.dev/badge/com.southlondonscientific/clara.svg)](https://protogrid.dev/servers/com.southlondonscientific/clara)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://clara-mcp.southlondonscientific.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (2)

- `contextual_advice`: Personalised air quality advice for a UK location and a specific
user context.

Use this tool whenever the user asks an air-quality question that
depends on *who they are* or *what they're about to do*: e.g. asthma,
pregnancy, school-age child, gas cooker at home, tube commute,
outdoor exercise. It composes location-specific pollution with the
user's personal context to produce evidence-based advice — far more
targeted than a generic "high pollution day" handout.

Composable with Hermes: pass pm25/no2 from Hermes get_current_aq for
advice based on live readings rather than annual average estimates.

Returns structured advice with a plain-English summary, health context,
and local intervention information. Present the 'summary' to users first.

Args:
    postcode: UK postcode (e.g. "SE17 1RL"). Provides coords + LAEI pollution.
    latitude: Latitude for coordinate-based lookup.
    longitude: Longitude for coordinate-based lookup.
    pm25: PM2.5 concentration in ug/m3. Overrides location-based estimate.
    no2: NO2 concentration in ug/m3. Overrides location-based estimate.
    setting: Context — residential, school, workplace, outdoor_exercise, commute.
    has_gas_cooker: Whether the person has a gas cooker (affects indoor advice).
    commute_mode: If setting is commute — walk, cycle, bus, car, train, tube.
    has_indoor_sources: Indoor pollution sources (smoking, woodstove).
    audience: Target audience — general, children, elderly, respiratory, pregnant.

- `exposure_assessment`: Estimate personal daily air pollution exposure across home, work, and commute.

Uses time-weighted modelling across environments: home (with indoor source
adjustments), work, and commute (with route-based pollution and transport mode
factors). Based on annual average pollution estimates, not live readings.

Args:
    home_postcode: Home location UK postcode (e.g. "SE17 1RL"). Required.
    work_postcode: Work/school location postcode. Omit if not commuting.
    transport_mode: Commute mode — walk, cycle, bus, car, train, tube.
    work_frequency: How often you commute — most_days, some_days, less_often, never.
    commute_hour: Hour of commute (0-23) for time-of-day pollution adjustment.
    cooker_type: Home cooker type — gas, electric, induction, unknown.
    smoking_at_home: Whether anyone smokes indoors (major PM2.5 source).
    tube_line: London Underground line for tube commuters (e.g. "victoria").