Monthly/annual car commute cost (fuel+Salik), or published area routes. No parking.
| Name | Required | Description | Default |
|---|---|---|---|
| fuel | No | special95 | |
| sort | No | distance_km | |
| cursor | No | ||
| to_area | No | ||
| from_area | No | ||
| page_size | No | ||
| to_hub_id | No | ||
| emirate_id | No | ||
| km_per_day | No | ||
| l_per_100km | No | ||
| days_per_week | No | ||
| salik_per_day | No |
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Changes observed during successful MCP inspections.
Input schema / $schemaRemoved value: -"https://json-schema.org/draft/2020-12/schema"Input schema / properties / emirate_id / typeRemoved value: -"string"Input schema / properties / fuel / typeRemoved value: -"string"Input schema / properties / sort / typeRemoved value: -"string"Input schema / properties / to_hub_id / typeRemoved value: -"string"Output schema / $defs / AreaCommuteRouteRemoved value: -{
- "additionalProperties": false,
- "properties": {
- "car": {
- "additionalProperties": false,
- "properties": {
- "crossings": {
- "items": {
- "additionalProperties": false,
- "properties": {
- "aed": {
- "type": "number"
- },
- "at": {
- "type": "string"
- },
- "gate": {
- "type": "string"
- },
- "trip": {
- "enum": [
- "morning",
- "evening"
- ],
- "type": "string"
- }
- },
- "required": [
- "gate",
- "trip",
- "at",
- "aed"
- ],
- "type": "object"
- },
- "type": "array"
- },
- "days_per_week": {
- "type": "integer"
- },
- "depart_times": {
- "items": {
- "type": "string"
- },
- "type": "array"
- },
- "fuel_aed": {
- "type": "number"
- },
- "gates": {
- "items": {
- "type": "string"
- },
- "type": "array"
- },
- "km_per_day": {
- "type": "number"
- },
- "litres_per_100km": {
- "type": "number"
- },
- "monthly_aed": {
- "type": "number"
- },
- "parking": {
- "const": "not_included"
- },
- "tolls_aed": {
- "type": "number"
- },
- "tolls_per_day": {
- "type": "number"
- }
- },
- "required": [
- "monthly_aed",
- "km_per_day",
- "tolls_per_day",
- "days_per_week",
- "litres_per_100km",
- "depart_times",
- "fuel_aed",
- "tolls_aed",
- "parking",
- "gates",
- "crossings"
- ],
- "type": [
- "object",
- "null"
- ]
- },
- "distance_km": {
- "type": "number"
- },
- "emirate_id": {
- "enum": [
- "dubai",
- "abu_dhabi",
- "sharjah",
- "ajman",
- "umm_al_quwain",
- "ras_al_khaimah",
- "fujairah"
- ],
- "type": "string"
- },
- "from_area": {
- "type": "string"
- },
- "minutes_free_flow": {
- "type": [
- "integer",
- "null"
- ]
- },
- "minutes_peak": {
- "type": "null"
- },
- "provenance": {
- "$ref": "#/$defs/Provenance"
- },
- "to_hub_id": {
- "type": "string"
- },
- "to_hub_name": {
- "type": "string"
- }
- },
- "required": [
- "emirate_id",
- "from_area",
- "to_hub_id",
- "to_hub_name",
- "distance_km",
- "minutes_free_flow",
- "minutes_peak",
- "car",
- "provenance"
- ],
- "type": "object"
-}Output schema / $defs / AreaCommuteRouteListResponseRemoved value: -{
- "additionalProperties": false,
- "properties": {
- "data": {
- "items": {
- "$ref": "#/$defs/AreaCommuteRoute"
- },
- "type": "array"
- },
- "links": {
- "$ref": "#/$defs/Links"
- },
- "meta": {
- "$ref": "#/$defs/ResponseMeta"
- }
- },
- "required": [
- "meta",
- "data",
- "links"
- ],
- "type": "object"
-}Output schema / $defs / CommuteEstimateRemoved value: -{
- "additionalProperties": false,
- "properties": {
- "annual_total_aed": {
- "type": [
- "number",
- "null"
- ]
- },
- "calculation_basis": {
- "additionalProperties": false,
- "properties": {
- "kilometres_per_consumption_unit": {
- "type": "integer"
- },
- "months_per_year": {
- "type": "integer"
- },
- "weeks_per_year": {
- "type": "integer"
- }
- },
- "required": [
- "weeks_per_year",
- "months_per_year",
- "kilometres_per_consumption_unit"
- ],
- "type": "object"
- },
- "days_per_month": {
- "type": "number"
- },
- "fuel_month": {
- "anyOf": [
- {
- "type": "string"
- },
- {
- "type": "null"
- }
- ]
- },
- "inputs": {
- "additionalProperties": false,
- "properties": {
- "days_per_week": {
- "type": "number"
- },
- "fuel": {
- "enum": [
- "super98",
- "special95",
- "eplus91",
- "diesel"
- ],
- "type": "string"
- },
- "km_per_day": {
- "type": "number"
- },
- "l_per_100km": {
- "type": "number"
- },
- "salik_per_day": {
- "type": "integer"
- }
- },
- "required": [
- "km_per_day",
- "days_per_week",
- "l_per_100km",
- "fuel",
- "salik_per_day"
- ],
- "type": "object"
- },
- "litres_per_month": {
- "type": "number"
- },
- "missing": {
- "items": {
- "type": "string"
- },
- "type": "array"
- },
- "monthly_aed": {
- "additionalProperties": false,
- "properties": {
- "fuel": {
- "type": [
- "number",
- "null"
- ]
- },
- "salik": {
- "type": [
- "number",
- "null"
- ]
- },
- "total": {
- "type": [
- "number",
- "null"
- ]
- }
- },
- "required": [
- "fuel",
- "salik",
- "total"
- ],
- "type": "object"
- },
- "not_included": {
- "items": {
- "type": "string"
- },
- "type": "array"
- },
- "price_per_litre_aed": {
- "type": [
- "number",
- "null"
- ]
- },
- "provenance": {
- "$ref": "#/$defs/Provenance"
- },
- "salik_offpeak_rate_aed": {
- "type": [
- "number",
- "null"
- ]
- },
- "salik_rate_aed": {
- "type": [
- "number",
- "null"
- ]
- }
- },
- "required": [
- "fuel_month",
- "inputs",
- "price_per_litre_aed",
- "salik_rate_aed",
- "days_per_month",
- "litres_per_month",
- "monthly_aed",
- "annual_total_aed",
- "missing",
- "not_included",
- "provenance"
- ],
- "type": "object"
-}Output schema / $defs / CommuteEstimateResponseRemoved value: -{
- "additionalProperties": false,
- "properties": {
- "data": {
- "anyOf": [
- {
- "$ref": "#/$defs/CommuteEstimate"
- },
- {
- "type": "null"
- }
- ]
- },
- "links": {
- "$ref": "#/$defs/Links"
- },
- "meta": {
- "$ref": "#/$defs/ResponseMeta"
- }
- },
- "required": [
- "meta",
- "data",
- "links"
- ],
- "type": "object"
-}Output schema / $defs / ToolFailureRemoved value: -{
- "additionalProperties": false,
- "properties": {
- "error": {
- "additionalProperties": false,
- "properties": {
- "code": {
- "type": "string"
- },
- "message": {
- "type": "string"
- },
- "retry_after_s": {
- "type": [
- "integer",
- "null"
- ]
- },
- "retryable": {
- "type": "boolean"
- }
- },
- "required": [
- "code",
- "message",
- "retryable",
- "retry_after_s"
- ],
- "type": "object"
- },
- "request_id": {
- "type": [
- "string",
- "null"
- ]
- }
- },
- "required": [
- "error",
- "request_id"
- ],
- "type": "object"
-}Output schema / anyOfPrevious value: -[
- {
- "$ref": "#/$defs/CommuteEstimateResponse"
- },
- {
- "$ref": "#/$defs/AreaCommuteRouteListResponse"
- },
- {
- "$ref": "#/$defs/ToolFailure"
- }
-]New value: +[
+ {
+ "additionalProperties": false,
+ "properties": {
+ "data": {
+ "anyOf": [
+ {
+ "additionalProperties": false,
+ "properties": {
+ "annual_total_aed": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "calculation_basis": {
+ "additionalProperties": false,
+ "properties": {
+ "kilometres_per_consumption_unit": {
+ "type": "integer"
+ },
+ "months_per_year": {
+ "type": "integer"
+ },
+ "weeks_per_year": {
+ "type": "integer"
+ }
+ },
+ "required": [
+ "weeks_per_year",
+ "months_per_year",
+ "kilometres_per_consumption_unit"
+ ],
+ "type": "object"
+ },
+ "days_per_month": {
+ "type": "number"
+ },
+ "fuel_month": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "inputs": {
+ "additionalProperties": false,
+ "properties": {
+ "days_per_week": {
+ "type": "number"
+ },
+ "fuel": {
+ "enum": [
+ "super98",
+ "special95",
+ "eplus91",
+ "diesel"
+ ]
+ },
+ "km_per_day": {
+ "type": "number"
+ },
+ "l_per_100km": {
+ "type": "number"
+ },
+ "salik_per_day": {
+ "type": "integer"
+ }
+ },
+ "required": [
+ "km_per_day",
+ "days_per_week",
+ "l_per_100km",
+ "fuel",
+ "salik_per_day"
+ ],
+ "type": "object"
+ },
+ "litres_per_month": {
+ "type": "number"
+ },
+ "missing": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "monthly_aed": {
+ "additionalProperties": false,
+ "properties": {
+ "fuel": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "salik": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "total": {
+ "type": [
+ "number",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "fuel",
+ "salik",
+ "total"
+ ],
+ "type": "object"
+ },
+ "not_included": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "price_per_litre_aed": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "provenance": {
+ "$ref": "#/$defs/Provenance"
+ },
+ "salik_offpeak_rate_aed": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "salik_rate_aed": {
+ "type": [
+ "number",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "fuel_month",
+ "inputs",
+ "price_per_litre_aed",
+ "salik_rate_aed",
+ "days_per_month",
+ "litres_per_month",
+ "monthly_aed",
+ "annual_total_aed",
+ "missing",
+ "not_included",
+ "provenance"
+ ],
+ "type": "object"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "links": {
+ "$ref": "#/$defs/Links"
+ },
+ "meta": {
+ "$ref": "#/$defs/ResponseMeta"
+ }
+ },
+ "required": [
+ "meta",
+ "data",
+ "links"
+ ],
+ "type": "object"
+ },
+ {
+ "additionalProperties": false,
+ "properties": {
+ "data": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "car": {
+ "additionalProperties": false,
+ "properties": {
+ "crossings": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "aed": {
+ "type": "number"
+ },
+ "at": {
+ "type": "string"
+ },
+ "gate": {
+ "type": "string"
+ },
+ "trip": {
+ "enum": [
+ "morning",
+ "evening"
+ ]
+ }
+ },
+ "required": [
+ "gate",
+ "trip",
+ "at",
+ "aed"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "days_per_week": {
+ "type": "integer"
+ },
+ "depart_times": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "fuel_aed": {
+ "type": "number"
+ },
+ "gates": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "km_per_day": {
+ "type": "number"
+ },
+ "litres_per_100km": {
+ "type": "number"
+ },
+ "monthly_aed": {
+ "type": "number"
+ },
+ "parking": {
+ "const": "not_included"
+ },
+ "tolls_aed": {
+ "type": "number"
+ },
+ "tolls_per_day": {
+ "type": "number"
+ }
+ },
+ "required": [
+ "monthly_aed",
+ "km_per_day",
+ "tolls_per_day",
+ "days_per_week",
+ "litres_per_100km",
+ "depart_times",
+ "fuel_aed",
+ "tolls_aed",
+ "parking",
+ "gates",
+ "crossings"
+ ],
+ "type": [
+ "object",
+ "null"
+ ]
+ },
+ "distance_km": {
+ "type": "number"
+ },
+ "emirate_id": {
+ "enum": [
+ "dubai",
+ "abu_dhabi",
+ "sharjah",
+ "ajman",
+ "umm_al_quwain",
+ "ras_al_khaimah",
+ "fujairah"
+ ]
+ },
+ "from_area": {
+ "type": "string"
+ },
+ "minutes_free_flow": {
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "minutes_peak": {
+ "type": "null"
+ },
+ "provenance": {
+ "$ref": "#/$defs/Provenance"
+ },
+ "to_hub_id": {
+ "type": "string"
+ },
+ "to_hub_name": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "emirate_id",
+ "from_area",
+ "to_hub_id",
+ "to_hub_name",
+ "distance_km",
+ "minutes_free_flow",
+ "minutes_peak",
+ "car",
+ "provenance"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "links": {
+ "$ref": "#/$defs/Links"
+ },
+ "meta": {
+ "$ref": "#/$defs/ResponseMeta"
+ }
+ },
+ "required": [
+ "meta",
+ "data",
+ "links"
+ ],
+ "type": "object"
+ },
+ {
+ "additionalProperties": false,
+ "properties": {
+ "error": {
+ "additionalProperties": false,
+ "properties": {
+ "code": {
+ "type": "string"
+ },
+ "message": {
+ "type": "string"
+ },
+ "retry_after_s": {
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "retryable": {
+ "type": "boolean"
+ }
+ },
+ "required": [
+ "code",
+ "message",
+ "retryable",
+ "retry_after_s"
+ ],
+ "type": "object"
+ },
+ "request_id": {
+ "type": [
+ "string",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "error",
+ "request_id"
+ ],
+ "type": "object"
+ }
+]Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, non-destructive, and closed-world, so safety is covered. The description adds useful scope context (cost components included, parking excluded, two operating modes), but says nothing about currency/units, whether results are estimates, or how the two modes interact with the parameter set.
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?
It is short and front-loads the primary output, which is good, but the second sentence is a cryptic fragment ('or published area routes') that reads as telegraphic rather than clarifying. Given the size of the parameter surface, the brevity borders on under-specification.
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 tool with 12 parameters, zero schema descriptions, and two distinct operating modes, the description is far too thin to let an agent pick the right inputs. An output schema exists so return values need not be explained, but the input-side and mode-selection guidance an agent needs is missing.
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 0% across 12 parameters, so the schema names fields like l_per_100km, km_per_day, days_per_week, salik_per_day, and cursor without any explanation. The description mentions only fuel and Salik conceptually and gives no guidance on the numeric assumptions, sorting, or pagination parameters, so it fails to compensate for the coverage gap.
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 names a concrete output (monthly/annual car commute cost composed of fuel + Salik) and flags two modes (computed estimate vs. published area routes), which lets an agent grasp the resource. It does not name or contrast any sibling tool, so an agent cannot tell from the text alone how this differs from fuel_prices, transport_fares, or costs_by_area.
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?
There is no explicit when-to-use guidance, no mention of which mode (calculator inputs vs. area/hub route lookup) applies under which conditions, and no prerequisites. Only the fragment 'No parking' hints at a scope exclusion, which is far from actionable routing guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.