# PikaSim (com.pikasim/pikasim): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.pikasim%2Fpikasim/versions/latest)
- Connected to: https://pikasim.com/mcp
- Homepage: https://pikasim.com/agentic-esim?utm_source=mcp_registry
- Repository: https://github.com/codebruinc/pikasim-mcp
- Scoring rules: v2
- Tools: 31
- Average: 60.2 / 100 (Cloudy)
- Near-identical pairs: 0

This page shows how PikaSim (com.pikasim/pikasim)'s tool descriptions scored, the issues found and the names of its tools and parameters. The descriptions are the server's own: read them where the copy came from.

Forecall asked the URL this server lists in the official MCP Registry for its tools/list once, on the date above, without calling any tool. The server may have changed since.

## Across the server

- Minor: 31 tools. Above 25, models start to tell tools apart less well.
- Minor: The server's instructions are 3152 characters. Claude Code reads only the first 2,048 by default (Codex 0.154.0 reads them whole). Put what the server is for first.

## Tools

- `extend_sms_rental`: 47 / 100
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: receiptId. Name the tool or the place that returns it, or models look it up first.
- `get_phone_plan_pricing`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `fetch`: 48 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `get_pricing`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
- `cancel_esim`: 50 / 100
  - Minor: Says nothing about what it returns.
- `get_package_details`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `get_topup_options`: 50 / 100
  - Minor: Says nothing about what it returns.
- `list_sms_rentals`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `cancel_sms_verification`: 55 / 100
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: orderId. Name the tool or the place that returns it, or models look it up first.
- `search_esim_packages`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `check_country_coverage`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
- `list_transactions`: 57 / 100
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `order_sms_verification`: 57 / 100
- `rent_sms_number`: 57 / 100
  - Minor: Says nothing about what it returns.
- `get_sms_rental_messages`: 58 / 100
  - Minor: Says nothing about what it returns.
- `search_sms_services`: 59 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `check_sms_verification`: 60 / 100
  - Minor: Says nothing about what it returns.
- `search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
- `check_balance`: 64 / 100
- `list_orders`: 64 / 100
  - Minor: No `required` list, so every argument is optional.
- `search_phone_plans`: 64 / 100
  - Minor: No `required` list, so every argument is optional.
- `list_esims`: 65 / 100
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `list_sms_orders`: 65 / 100
  - Minor: Says nothing about what it returns.
- `topup_esim`: 65 / 100
  - Minor: Says nothing about what it returns.
- `cancel_sms_rental`: 67 / 100
- `get_esim_status`: 67 / 100
- `get_sms_service_countries`: 72 / 100
  - Minor: Required identifiers whose description does not say where the value comes from: serviceId. Name the tool or the place that returns it, or models look it up first.
- `purchase_esim`: 74 / 100
- `purchase_phone_plan`: 74 / 100
- `create_deposit`: 77 / 100
- `create_wallet`: 80 / 100

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