get_overviewReturn bounded headline aggregates across official prices, seizures, overdose mortality, wastewater, and public designations.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
| Name | Required | Description | Default |
|---|---|---|---|
| note | Yes | ||
| schema | Yes | ||
| headline | Yes | ||
| divergences | Yes | ||
| publication | Yes | ||
| generated_at | Yes | ||
| interpretation | Yes | ||
| designation_programs | Yes | ||
| overdose_by_substance | Yes | ||
| top_seizure_countries | Yes |
Changes observed during successful MCP inspections.
Output schema / properties / publicationAdded value: +{
+ "additionalProperties": false,
+ "properties": {
+ "observationScope": {
+ "const": "published_rows_only"
+ },
+ "permissionEvidence": {
+ "type": "null"
+ },
+ "policyId": {
+ "const": "narcoscope.publication-rights.2026-10-28.v1"
+ },
+ "reason": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "sourceIds": {
+ "items": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "type": "array",
+ "uniqueItems": true
+ },
+ "status": {
+ "enum": [
+ "published",
+ "partial",
+ "metadata_only"
+ ]
+ }
+ },
+ "required": [
+ "policyId",
+ "status",
+ "sourceIds",
+ "permissionEvidence",
+ "observationScope",
+ "reason"
+ ],
+ "type": "object"
+}Output schema / requiredPrevious value: -[
- "schema",
- "generated_at",
- "note",
- "headline",
- "overdose_by_substance",
- "top_seizure_countries",
- "designation_programs",
- "divergences",
- "interpretation"
-]New value: +[
+ "schema",
+ "generated_at",
+ "note",
+ "publication",
+ "headline",
+ "overdose_by_substance",
+ "top_seizure_countries",
+ "designation_programs",
+ "divergences",
+ "interpretation"
+]Output schema / (root)Previous value: -nullNew value: +{
+ "$schema": "https://json-schema.org/draft/2020-12/schema",
+ "additionalProperties": false,
+ "properties": {
+ "designation_programs": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "code": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "count": {
+ "minimum": 0,
+ "type": "integer"
+ },
+ "label": {
+ "minLength": 1,
+ "type": "string"
+ }
+ },
+ "required": [
+ "code",
+ "label",
+ "count"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "divergences": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "demandLabel": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "demandPct": {
+ "type": "number"
+ },
+ "label": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "reading": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "supplyLabel": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "supplyPct": {
+ "type": "number"
+ },
+ "window": {
+ "minLength": 1,
+ "type": "string"
+ }
+ },
+ "required": [
+ "label",
+ "window",
+ "supplyLabel",
+ "supplyPct",
+ "demandLabel",
+ "demandPct",
+ "reading"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "generated_at": {
+ "format": "date",
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "headline": {
+ "additionalProperties": false,
+ "properties": {
+ "designations": {
+ "minimum": 0,
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "seizureCountries": {
+ "minimum": 0,
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "seizureYear": {
+ "minimum": 1900,
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "usOverdoseLatest": {
+ "minimum": 0,
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "usOverdoseWindow": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "usOverdoseYear": {
+ "minimum": 1900,
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "usOverdoseYoY": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "wastewaterCities": {
+ "minimum": 0,
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "worldSeizureTonnes": {
+ "minimum": 0,
+ "type": [
+ "number",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "usOverdoseLatest",
+ "usOverdoseYoY",
+ "usOverdoseYear",
+ "usOverdoseWindow",
+ "worldSeizureTonnes",
+ "seizureYear",
+ "designations",
+ "seizureCountries",
+ "wastewaterCities"
+ ],
+ "type": "object"
+ },
+ "interpretation": {
+ "items": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "minItems": 1,
+ "type": "array"
+ },
+ "note": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "overdose_by_substance": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "deaths": {
+ "minimum": 0,
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "label": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "substance": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "yoy": {
+ "type": [
+ "number",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "substance",
+ "label",
+ "deaths",
+ "yoy"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "schema": {
+ "const": "narcoscope.api.overview.v1"
+ },
+ "top_seizure_countries": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "iso3": {
+ "pattern": "^[A-Z]{3}$",
+ "type": "string"
+ },
+ "kg": {
+ "minimum": 0,
+ "type": "number"
+ },
+ "name": {
+ "minLength": 1,
+ "type": "string"
+ }
+ },
+ "required": [
+ "iso3",
+ "name",
+ "kg"
+ ],
+ "type": "object"
+ },
+ "maxItems": 10,
+ "type": "array"
+ }
+ },
+ "required": [
+ "schema",
+ "generated_at",
+ "note",
+ "headline",
+ "overdose_by_substance",
+ "top_seizure_countries",
+ "designation_programs",
+ "divergences",
+ "interpretation"
+ ],
+ "type": "object"
+}Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already establish that this is a safe, read-only, closed-world operation. The description adds useful behavioral context by saying the return is 'bounded headline aggregates,' indicating limited-size summary output rather than full raw records.
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 a single front-loaded sentence with no filler. Every clause identifies the return type or the covered data domains.
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?
With no parameters, rich annotations, and an output schema, the description supplies enough context to understand what the overview returns. The main remaining gap is the lack of explicit sibling routing, though that is primarily a usage-guidelines concern.
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, so there is no parameter semantics for the description to explain. The baseline for this case is 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 uses a specific verb (Return) and resource (bounded headline aggregates) and names the covered data domains, so the tool’s purpose is clear. It does not explicitly contrast itself with sibling tools such as query_market_observations or get_market_catalog, which keeps it short of a 5.
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 phrase 'headline aggregates' implies this is for summary-level overview data rather than detailed records, giving some usage context. However, there is no explicit when-to-use guidance or named alternative for detailed queries.
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.