# `ca.grocerypulse/grocery-comparison` 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/ca.grocerypulse/grocery-comparison
- JSON: https://anlyon.dev/api/v1/servers/ca.grocerypulse/grocery-comparison
- Version: 1.1.0 (active)
- Publisher: ca.grocerypulse (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-10-21T17:46:08.824Z

Title and description, as the publisher wrote them:

```untrusted-server-text
GroceryPulse Canada
Read-only grocery-list comparisons for supported Canadian cities, with dated prices and coverage.
```

Scanned 2026-10-21T18:44:16.103Z over streamable-http.

**3 tools: 1 change things and 2 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 1 | ask |
| Only reads | read | 2 | allow |

## Findings

No check matched anything in these tool definitions.


## Changes things (1)

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

### `plan_grocery_order`

- 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.

Description, as the server wrote it:

```untrusted-server-text
Plans a grocery order from a shopping list as the shopper wrote it, in a covered Canadian city. Use when a shopper asks where their list is cheapest or wants to buy groceries online. Takes the list as text (English or French, quantities included, up to 60 lines), the city or the first three characters of a postal code inside it and, optionally, the stores the shopper uses. Returns each line as exact, closest (a different size, variant or brand: not priced and in no total) or not tracked; per-store totals with coverage and price dates; a cheapest store only when every compared item is priced at two or more chains with a clear lead (or, when the only obstacle is a pack item whose count no store's listing gives, a store labelled cheapest for the other lines, with those lines listed apart), otherwise the reason; per-item links to each store's own product page or search; and interpretation notes that state what the result does and does not cover. Read-only: it never orders, adds to a cart, saves a list or contacts a store.
```

## Only reads (2)

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

### `compare_grocery_list`

- The name "compare_grocery_list" says "compare": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Compares current public chain prices for a list of catalogue item ids (from get_grocery_catalog) and quantities in one supported Canadian city; plan_grocery_order is the form that takes a list in the shopper's own words. A lowest-chain recommendation requires fresh full requested coverage at two eligible chains with no close call or package/reference-size reversal. Results keep missing items, exclusions, price dates, scope and source links, and each chain includes plain per-item storeLinks to its own product page or search, with the price date used. Each id is one product at its catalogue size (for example 4 L milk); a different size, variant or brand is a different product. Chain medians are not branch stock or guaranteed checkout quotes. Read-only: it does not buy, save a list, send email or access licensed or private data.
```

### `get_grocery_catalog`

- The name "get_grocery_catalog" says "get": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Lists GroceryPulse's configured Canadian cities, canonical reference items with their ids, quantity units, known chains and checkout eligibility holds: the ids that compare_grocery_list takes. Configured coverage is not current availability or coverage of every nearby branch. Each item is one product at one package size (its name and referenceSize); a different size, variant or brand is a different product.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `grocery-comparison`:

```json
{
  "permissions": {
    "allow": [
      "mcp__grocery-comparison__get_grocery_catalog",
      "mcp__grocery-comparison__compare_grocery_list"
    ],
    "ask": [
      "mcp__grocery-comparison__plan_grocery_order"
    ],
    "deny": []
  }
}
```