RedAlert MCP Server
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@RedAlert MCP ServerShow me active alerts right now"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
RedAlert MCP Server
An MCP (Model Context Protocol) server for Israel's RedAlert emergency alert system. Provides real-time rocket alerts, historical statistics, shelter search, and city data through 12 MCP tools.
Features
Real-time alerts via Socket.IO with buffered polling model
Historical statistics - summaries, per-city stats, alert history, distribution
Shelter search - find nearby shelters by coordinates or city name
City catalog - lookup cities with translations, coordinates, and countdown times
Test mode - connect to the test server for simulated alerts
Related MCP server: Weather MCP Server
Tools
REST API Tools (8)
Tool | Description |
| Real-time snapshot of cities currently under alert |
| Alert totals, top cities/zones/origins, timeline, peak hour |
| Per-city alert statistics with pagination and search |
| Historical alert records with city filtering |
| Alert distribution by category or origin |
| Find nearby shelters by coordinates or city name |
| City catalog with translations, coordinates, countdown |
| API health check |
Real-time Tools (4)
Tool | Description |
| Connect to Socket.IO and start receiving alerts |
| Retrieve buffered alerts (peek or acknowledge) |
| Disconnect and clear buffer |
| Check connection state and buffer size |
Setup
Prerequisites
Node.js 18+
A RedAlert API key (get one at redalert.orielhaim.com)
Configure in Claude Code
Add to ~/.claude.json under your project's mcpServers:
{
"redalert": {
"type": "stdio",
"command": "npx",
"args": ["-y", "redalert-mcp-server"],
"env": {
"REDALERT_API_KEY": "your-api-key-here"
}
}
}Configure in Claude Desktop
Add to claude_desktop_config.json:
{
"mcpServers": {
"redalert": {
"command": "npx",
"args": ["-y", "redalert-mcp-server"],
"env": {
"REDALERT_API_KEY": "your-api-key-here"
}
}
}
}Usage Examples
Once configured, you can ask Claude:
"Show me active alerts right now"
"Find all missile alerts in Kfar Saba in the last 24 hours"
"Search for shelters near Tel Aviv"
"Get alert statistics summary with top cities"
"Subscribe to test alerts and poll for updates"
"Compare missile alerts between Kfar Saba and Shoham in the last 2 months"
Example: City Comparison
Prompt: "Compare the missile alerts in the last 2 months between Kfar Saba and Shoham"
┌──────────────────────────┬───────────────┬───────────────┐
│ │ Kfar Saba │ Shoham │
├──────────────────────────┼───────────────┼───────────────┤
│ Zone │ Sharon │ Yarkon │
├──────────────────────────┼───────────────┼───────────────┤
│ Missile alerts │ 64 │ 77 │
├──────────────────────────┼───────────────┼───────────────┤
│ Total alerts (all types) │ 205 │ 217 │
├──────────────────────────┼───────────────┼───────────────┤
│ Last missile alert │ Mar 14, 12:43 │ Mar 13, 21:22 │
└──────────────────────────┴───────────────┴───────────────┘
Shoham had ~20% more missile alerts than Kfar Saba over this period (77 vs 64).
Both cities had a similar ratio of missile alerts to total alerts (~31-35%).Claude automatically uses get_stats_cities and get_stats_history to gather and compare data across cities.
Example: Weekly Alert Summary (Hebrew)
Prompt: "תראה לי את כל ההתראות שהיו לכפר סבא בשבוע האחרון"
הנה כל ההתראות בכפר סבא בשבוע האחרון (7-14 במרץ):
| תאריך ושעה (UTC) | סוג התראה |
|-------------------|----------------------|
| 14/3, 13:04 | טילים |
| 14/3, 12:43 | טילים |
| 14/3, 12:39 | ידיעה מקדימה |
| 14/3, 00:30 | ידיעה מקדימה |
| 13/3, 21:22 | טילים |
| 13/3, 17:31 | טילים |
| 13/3, 17:26 | ידיעה מקדימה |
| 13/3, 14:58 | ידיעה מקדימה |
| 13/3, 11:26 | ידיעה מקדימה |
| 13/3, 08:49 | חדירת כלי טיס עוין |
| 12/3, 19:42 | טילים |
| 12/3, 19:38 | ידיעה מקדימה |
| 12/3, 15:19 | חדירת כלי טיס עוין |
| 12/3, 13:03 | טילים |
| 12/3, 12:57 | ידיעה מקדימה |
| 12/3, 07:22 | ידיעה מקדימה |
| 12/3, 02:13 | טילים |
| 12/3, 02:07 | ידיעה מקדימה |
סיכום השבוע בכפר סבא:
- 8 התראות טילים
- 8 ידיעות מקדימות
- 2 חדירות כלי טיס עויןClaude uses get_stats_history with Hebrew city search, automatically filtering results to show only Kfar Saba. Works in any language.
Example: Nearest Shelters
Prompt: "תראה לי את שלושת המקלטים הכי קרובים לתיאטרון הבימה בתל אביב"
שלושת המקלטים הקרובים ביותר לתיאטרון הבימה:
| # | מרחק | כתובת | שם | סוג | שטח |
|---|--------|---------------------------|----------------------|----------------------|-----------|
| 1 | 143 מ' | הוברמן 4 (כיכר הבימה) | הבימה/שד' בן ציון | מקלט בשטח חניון | 2,000 מ"ר |
| 2 | 154 מ' | הוברמן 1 | היכל התרבות | חניון מחסה לציבור | 37,200 מ"ר|
| 3 | 260 מ' | ביל"ו 54 | - | מקלט ציבורי | 92 מ"ר |
- מקלט 1 - ממש בכיכר הבימה, גישה ציבורית
- מקלט 2 - היכל התרבות, החניון הגדול משמש כמחסה לציבור
- מקלט 3 - ביל"ו 54 פינת מרמורק 20, מתחת לבית כנסתClaude resolves the landmark to coordinates and uses search_shelters to find the nearest shelters with full details.
Testing
# Unit tests (91 tests)
npm test
# E2E tests against live API (56 tests)
REDALERT_API_KEY=your-key node e2e/run-e2e.mjsArchitecture
src/
api/ # HTTP client and API endpoint wrappers
tools/ # MCP tool handlers (one per endpoint)
realtime/ # Socket.IO connection manager and alert buffer
__tests__/ # Unit tests (vitest)
config.ts # Configuration and API key
errors.ts # Error handling and MCP error mapping
server.ts # MCP server setup
index.ts # Entry point with stdio transport
e2e/ # End-to-end test runner and test plansAPI Reference
Based on RedAlert API by Oriel Haim.
License
MIT
Available Tools
12 toolsget_active_alertsA
Get real-time snapshot of cities currently under alert, grouped by alert type (missiles, earthquakes, etc.)
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must convey behavioral traits. It only indicates a read-only operation ('Get'), but does not disclose details like data freshness, rate limits, or whether it's safe to call repeatedly. The term 'real-time' is ambiguous without guarantees.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, concise sentence that efficiently conveys the tool's purpose. Every word adds value, with no waste.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (no parameters, no output schema), the description is largely complete. It specifies the grouping by alert type, which is crucial. However, it lacks details on output structure or any caveats about data freshness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has zero parameters and schema coverage is 100%, so the baseline is 4. The description adds no parameter details, but none are needed.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Get' and the resource 'real-time snapshot of cities currently under alert', and specifies the output is grouped by alert type. This distinguishes it from sibling tools like get_cities (which lists cities) and poll_alerts (which may involve polling).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use this tool versus alternatives. While the description implies it's for a 'snapshot', it does not mention alternatives like poll_alerts or search_shelters. The context lacks exclusions or usage scenarios.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_alert_subscription_statusA
Check the current real-time alert subscription status including connection state, subscribed types, and buffer size.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden. It discloses that it retrieves connection state, subscribed types, and buffer size, indicating a read-only operation with no side effects. However, it does not mention any potential retries or latency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence starting with the action verb 'Check', directly stating the tool's function. It is concise with no superfluous information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no parameters and no output schema, the description effectively conveys what the tool returns. It could benefit from explicitly stating the return format, but the listed items provide sufficient completeness for a simple status check.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has no parameters, and the schema coverage is 100%. The description adds no parameter information because none is needed, providing adequate context.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool checks real-time alert subscription status, specifying the data returned (connection state, subscribed types, buffer size). It distinguishes from sibling tools like subscribe_alerts and unsubscribe_alerts.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for checking subscription status but does not explicitly state when to use this tool over alternatives like get_active_alerts or poll_alerts. No exclusions or conditional guidance provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_citiesA
Get city catalog for lookups - raw location records with optional translations, coordinates, and countdown times
| Name | Required | Description | Default |
|---|---|---|---|
| search | No | Search by city name (partial match) | |
| zone | No | Filter by zone/region name (exact match) | |
| limit | No | Number of cities to return (1-500, default 100) | |
| offset | No | Number of results to skip | |
| include | No | Comma-separated: translations, coords, countdown |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must convey behavioral traits. It describes the data as 'raw location records' and optional includes, which hints at read-only behavior. However, it does not explicitly state that the tool is non-destructive, requires no special permissions, or whether it has rate limits. The lack of explicit behavioral disclosure leaves gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, well-structured sentence that packs purpose and key features without redundancy. It avoids filler words and front-loads the core action ('Get city catalog for lookups'). Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the 5 parameters, zero annotations, and no output schema, the description provides a high-level overview but omits details like pagination semantics, response structure, and differentiation from similar tools like 'search_shelters'. It sufficiently suggests the tool's role as a catalog lookup but lacks completeness for full autonomous use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema covers all parameters with descriptions (100% coverage), so the base expectation is 3. The description adds value by explaining the context: 'raw location records with optional translations, coordinates, and countdown times' directly clarifies what the 'include' parameter yields. This goes beyond the schema's 'Comma-separated' description, enhancing understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Get city catalog for lookups - raw location records'. It specifies the resource (city catalog) and the action (get), and distinguishes from sibling 'get_stats_cities' by emphasizing 'raw' data. The inclusion of optional fields (translations, coordinates, countdown) further clarifies the scope.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies use for lookups but does not explicitly state when to use this tool versus alternatives like 'search_shelters' or 'get_stats_cities'. It lacks guidance on prerequisites, when not to use it, or which sibling to choose for specific needs. The phrase 'for lookups' provides minimal context but no exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_stats_citiesB
Get city-level alert statistics with pagination, search, and optional translations/coordinates
| Name | Required | Description | Default |
|---|---|---|---|
| startDate | No | ISO 8601 date to filter from | |
| endDate | No | ISO 8601 date to filter until | |
| limit | No | Number of cities to return (default 5) | |
| offset | No | Number of results to skip for pagination | |
| origin | No | Filter by origin(s), comma-separated | |
| search | No | Search cities by name (partial match) | |
| include | No | Comma-separated: translations, coords |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description carries the transparency burden. It mentions pagination, search, and optional fields, but does not disclose if it's read-only, rate limits, or default behavior without parameters. Basic transparency is present.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence with no filler. Starts with verb and resource, lists capabilities efficiently. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 7 parameters and no output schema, the description lacks details on what 'statistics' are returned, default date range, or behavior with no parameters. Incomplete for agent to fully understand response format.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema covers all 7 parameters with descriptions (100% coverage). The description adds only high-level context (pagination, search, include) but no extra semantics beyond what the schema already provides. Baseline 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states the tool gets city-level alert statistics and lists key features (pagination, search, optional translations/coordinates). It distinguishes from siblings like 'get_cities' (which likely returns cities without stats).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool vs alternatives (e.g., 'get_stats_summary' or 'get_cities'). No mention of prerequisites or when not to use.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_stats_distributionA
Get alert distribution grouped by category or origin, with filtering, sorting, and pagination
| Name | Required | Description | Default |
|---|---|---|---|
| startDate | No | ISO 8601 date to filter from | |
| endDate | No | ISO 8601 date to filter until | |
| origin | No | Filter by origin(s), comma-separated | |
| groupBy | No | Group results by category or origin (default: category) | |
| category | No | Filter by specific alert type (exact match) | |
| limit | No | Number of categories to return (1-100, default 50) | |
| offset | No | Number of results to skip | |
| sort | No | Sort by count or category (default: count) | |
| order | No | Sort direction (default: desc) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry the full burden. It only says 'Get' which implies a read operation, but does not disclose any behavioral traits such as rate limits, authentication requirements, or whether results are cached. The lack of transparency leaves the agent underinformed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that covers the core functionality and key features (grouping, filtering, sorting, pagination). No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
While the description summarizes the tool's purpose, it does not explain the return format (e.g., an array of groups with counts) or default behaviors beyond what the schema provides. For a tool with 9 parameters and no output schema, the description is adequate but not fully comprehensive.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with each parameter having a clear description (e.g., ISO 8601 date format, enum options). The tool description does not add meaning beyond the schema, so a baseline of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Get alert distribution'), the resource ('alert distribution'), and the two grouping options ('by category or origin'). It distinguishes from sibling tools like get_stats_summary and get_stats_history which serve different purposes.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for obtaining grouped distributions with filtering, sorting, and pagination, but does not explicitly state when to use this tool over siblings or provide exclusions. It offers moderate context but lacks clear guidance on alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_stats_historyB
Get detailed historical alert records with full city data, filtering, sorting, and pagination
| Name | Required | Description | Default |
|---|---|---|---|
| startDate | No | ISO 8601 date to filter from | |
| endDate | No | ISO 8601 date to filter until | |
| limit | No | Number of alerts to return (1-100, default 20) | |
| offset | No | Number of results to skip for pagination | |
| cityId | No | Filter by city ID (exact match) | |
| cityName | No | Filter by city name in Hebrew (exact match) | |
| search | No | Search by city name (partial match, 1-100 chars) | |
| category | No | Filter by alert type (e.g. missiles, drones, earthquakes) | |
| origin | No | Filter by origin(s), comma-separated | |
| sort | No | Sort results by field (default: timestamp) | |
| order | No | Sort direction (default: desc) | |
| include | No | Comma-separated: translations, coords, polygons |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It only states the tool 'gets' records, implying a read operation, but does not disclose any behavioral traits such as data freshness, rate limits, or potential side effects. This is minimal transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence (13 words) that captures the tool's essence. It is front-loaded with the action and resource. While it could be slightly more structured, it avoids verbosity and is efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite 12 parameters and no output schema or annotations, the description is very brief. It does not explain the return format, pagination details, or what 'full city data' entails. Given the tool's complexity, the description is insufficiently complete for an AI to fully understand its usage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so each parameter is already documented in the schema. The description adds minimal value by summarizing them as 'filtering, sorting, and pagination' and mentioning 'full city data'. This provides context but does not significantly enhance understanding beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly specifies the action ('Get'), resource ('detailed historical alert records'), and key features ('full city data, filtering, sorting, and pagination'). This distinguishes it from siblings like 'get_active_alerts' (current alerts) and 'get_stats_summary' (aggregated statistics).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description does not provide any guidance on when to use this tool versus alternatives (e.g., 'get_active_alerts' for current alerts, 'get_stats_summary' for summaries). No explicit when-not-to-use or context for selection is given.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_stats_summaryB
Get high-level overview of the alert system: totals, unique cities/zones, and optional top cities/zones/origins/timeline/peak data
| Name | Required | Description | Default |
|---|---|---|---|
| startDate | No | ISO 8601 date to filter from | |
| endDate | No | ISO 8601 date to filter until | |
| origin | No | Filter by origin(s), comma-separated (e.g. 'gaza,lebanon') | |
| include | No | Comma-separated optional sections: topCities, topZones, topOrigins, timeline, peak | |
| topLimit | No | Number of items in topCities/topZones (1-50, default 5) | |
| timelineGroup | No | Grouping interval for timeline (default: hour) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden. It describes what the tool returns (totals, unique items, optional sections) but omits behavioral traits like read-only nature, authentication requirements, or rate limits. Basic behavior is implied but not explicit.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence that packs key information: what it does and what it includes. It is efficient and front-loaded, earning its place without excess.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 6 optional parameters and no output schema, the description provides a high-level overview but lacks details on return format or examples. It is sufficient for a summary tool but could be more complete, especially among many sibling tools.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds context by mentioning 'optional top cities/zones/origins/timeline/peak data' corresponding to the 'include' parameter, but does not elaborate on each optional section or parameter beyond schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states it retrieves a high-level overview with specific elements like totals, unique cities/zones, and optional sections. This distinguishes it from sibling tools like get_stats_history or get_stats_cities, though not explicitly.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies use for summary data but does not provide explicit guidance on when to use this tool versus siblings like get_stats_cities or get_stats_distribution. No when-not-to-use or alternative suggestions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
health_checkA
Check the health status of the RedAlert API
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It only states the purpose without disclosing details such as authentication requirements, response format, or rate limits. For a simple health check, more context would be helpful.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence with no wasted words, making it highly concise and easy to understand.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the simple nature of the tool (no parameters, no output schema), the description is adequate but lacks details about the response or what a healthy/unhealthy status looks like. It covers the basic purpose but leaves some gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has no parameters, and the schema coverage is 100%. The description does not need to add parameter semantics, achieving a baseline of 4.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool checks the health status of the RedAlert API, using a specific verb and resource, and is distinct from sibling tools that focus on alerts, subscriptions, and stats.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for health checking but does not provide explicit guidance on when or when not to use it compared to other tools. No alternatives or exclusions are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
poll_alertsA
Retrieve buffered real-time alerts that arrived since the last poll. Must call subscribe_alerts first.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of alerts to return (default 50, max 200) | |
| acknowledge | No | If true (default), clear returned alerts from buffer. If false, peek without consuming. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It explains the polling nature, buffer consumption via acknowledge parameter, and the requirement of prior subscription. It could be more detailed about rate limits or return format, but adds sufficient behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences front-loaded with the core purpose and a crucial prerequisite. Every sentence adds value, no wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description explains the tool's polling mechanism and buffer behavior well. Without an output schema, it could hint at the return format (e.g., list of alerts), but the description is sufficient for a simple poll tool given the context of sibling tools.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with both parameters described in the schema. The description does not add additional meaning beyond what the schema provides, so baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Retrieve' and the resource 'buffered real-time alerts that arrived since the last poll'. It differentiates from sibling tools like get_active_alerts by specifying polling behavior.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states 'Must call subscribe_alerts first', providing a clear prerequisite and guiding the agent to not use this tool without prior subscription.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
search_sheltersA
Find nearby shelters. Provide lat/lon directly, or just a city name to auto-resolve coordinates.
| Name | Required | Description | Default |
|---|---|---|---|
| lat | No | Latitude of search center (optional if city is provided) | |
| lon | No | Longitude of search center (optional if city is provided) | |
| city | No | City name (Hebrew or English) - auto-resolves to coordinates if lat/lon not provided | |
| limit | No | Number of shelters to return (default 10) | |
| radius | No | Search radius in kilometers | |
| wheelchairOnly | No | Filter wheelchair accessible shelters only | |
| shelterType | No | Filter by shelter type (e.g. 'public', 'private') |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description must disclose behavior. It only states 'Find nearby shelters' without mentioning read-only nature, authentication, or output format. This is insufficient for a tool with 7 parameters.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Description is a single, front-loaded sentence with no wasted words. Efficiently conveys purpose and key location options.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
No output schema provided. Description does not explain return format, ordering, pagination, or distance information. Incomplete for a search tool with multiple filters.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with descriptions for all 7 parameters. Description adds value by summarizing the two location methods (lat/lon vs city), but does not provide additional meaning beyond schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states 'Find nearby shelters' with specific verb and resource. It distinguishes from sibling tools (alerts, stats) which have different focus.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Description explains two ways to specify location: lat/lon directly or city name for auto-resolution. It provides clear usage context but does not explicitly mention when not to use or alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
subscribe_alertsB
Connect to RedAlert Socket.IO server and start receiving real-time emergency alerts. Optionally filter by alert types and enable test mode for simulated alerts.
| Name | Required | Description | Default |
|---|---|---|---|
| alertTypes | No | Alert types to subscribe to. If omitted, subscribes to all. Valid types: missiles, earthQuake, tsunami, hostileAircraftIntrusion, hazardousMaterials, terroristInfiltration, newsFlash, unconventionalWarfare, radiologicalEvent, generalAlert, missilesDrill, radiologicalEventDrill, earthQuakeDrill, tsunamiDrill, hostileAircraftIntrusionDrill, hazardousMaterialsDrill, terroristInfiltrationDrill | |
| testMode | No | If true, connect to test server with simulated alerts instead of live alerts | |
| timing | No | Interval between alerts from test server, e.g. "5s", "1m" (minimum 1s) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must fully disclose behavior. It covers connecting to a Socket.IO server and receiving alerts, but lacks details on connection lifecycle, how to stop (though unsubscribe_alerts exists), and whether data is returned immediately. The test mode is mentioned, but more behavioral context is needed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single clear sentence that efficiently conveys the purpose and optional features, though it could be slightly more structured.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a subscription tool with no required parameters and no output schema, the description provides adequate context but lacks details on return format, how to unsubscribe, and error handling. It is minimally complete given the tool's complexity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with clear descriptions for all three parameters. The description adds minimal extra value beyond the schema, such as summarizing filtering and test mode, but does not provide new semantic information.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's action (connect and receive) and resource (real-time emergency alerts), and includes optional filtering and test mode, distinguishing it from siblings like get_active_alerts and unsubscribe_alerts.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description mentions optional filtering by alert types and test mode, but does not explicitly guide when to use this subscription tool versus polling alternatives like poll_alerts or get_active_alerts.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
unsubscribe_alertsA
Disconnect from RedAlert Socket.IO server and stop receiving real-time alerts. Clears the alert buffer.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Discloses key behaviors: disconnecting from server, stopping real-time alerts, and clearing the alert buffer. With no annotations, it adequately describes effects, though error cases or side effects are not mentioned.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Extremely concise two-sentence description, front-loaded with the primary action. Every word adds value with no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given zero parameters, no output schema, and a clear sibling context (subscribe_alerts), the description is fully adequate. It covers the purpose, effect, and complements the sibling tool well.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
No parameters present, so schema coverage is 100%. The description correctly adds no parameter info, meeting the baseline for zero-parameter tools.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Clearly states the action (disconnect from RedAlert Socket.IO server) and the result (stop receiving alerts, clear buffer). Distinguishes itself from sibling subscribe_alerts which does the opposite.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Implies usage when user wants to stop alerts, and the sibling subscribe_alerts suggests the opposite action. No explicit when-not-to-use, but context is sufficient given the tool's simplicity.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.
12 tool updates
v1.2.0- First observed
get_active_alerts - First observed
get_alert_subscription_status - First observed
get_cities - First observed
get_stats_cities - First observed
get_stats_distribution - First observed
get_stats_history - First observed
get_stats_summary - First observed
health_check - First observed
poll_alerts - First observed
search_shelters - First observed
subscribe_alerts - First observed
unsubscribe_alerts
TDQS
Each tool has a clearly distinct purpose: current alerts, historical stats, real-time subscription, shelters, health check. No two tools overlap in functionality.
Tools mostly follow a verb_noun snake_case pattern (e.g., get_active_alerts, subscribe_alerts). 'health_check' deviates slightly, but overall consistent.
12 tools cover the domain well—real-time alerts, stats, shelters, health—without being excessive or sparse.
The toolset covers all essential operations: viewing active alerts, subscribing/polling real-time data, accessing historical statistics, and finding shelters. No obvious gaps.
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