Afriref: cited government reference data

get_snapshot

Read-onlyIdempotent

PAID ($0.02). Snapshot of every series for every country in one call. Pass api_key if you have one (instant card checkout at /pricing); otherwise the response explains how to pay via x402. Every GH series is free to try. After a 200, bind get_changes (free poll) or register_alert (HMAC push; Register: $0 · Delivery after trial: $0.05) on this series so a later gazette does not silently retire the value.

Input Schema

Name	Required	Description	Default
`api_key`	No	API key

Output Schema

Name	Required	Description
`error`	No	Present on a free refusal or error; no charge
`result`	No	One entry per country; every series value carries confidence_label, coverage_label and label_basis
`countries`	No
`no_charge`	No
`price_usd`	No
`disclaimer`	No
`how_to_pay`	No
`bind_series`	No
`explanation`	No
`x_next_bind`	No
`http_endpoint`	No
`payment_required`	No	true when the call needs payment; how_to_pay explains x402 or card

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedOct 17, 2026
- removedOutput schema / properties / result / items / properties / series / items / properties / label_basis / properties / source_type / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / result / items / properties / series / items / properties / label_basis / properties / source_type / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / result / items / properties / series / items / properties / label_basis / properties / verification_age_days / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / result / items / properties / series / items / properties / label_basis / properties / verification_age_days / type
```
Added value: +[
+  "number",
+  "null"
+]
```

Changed1 schema field changedOct 13, 2026

addedOutput schema / properties / result

Added value: +{
+  "description": "One entry per country; every series value carries confidence_label, coverage_label and label_basis",
+  "items": {
+    "additionalProperties": {},
+    "properties": {
+      "country": {
+        "type": "string"
+      },
+      "series": {
+        "items": {
+          "additionalProperties": {},
+          "properties": {
+            "confidence": {},
+            "confidence_label": {
+              "description": "Evidence verdict derived from source type, verification age and the stale flag (answers: the weakest series read). Rules at /label-rules",
+              "enum": [
+                "high",
+                "medium",
+                "low"
+              ],
+              "type": "string"
+            },
+            "country": {
+              "type": "string"
+            },
+            "coverage_label": {
+              "description": "How much of the question is covered: ready = complete; partial = held with a disclosed limitation or default; gap = no number served. Rules at /label-rules",
+              "enum": [
+                "ready",
+                "partial",
+                "gap"
+              ],
+              "type": "string"
+            },
+            "effective_from": {},
+            "label_basis": {
+              "additionalProperties": {},
+              "description": "Inputs and the rule ids that produced the two labels",
+              "properties": {
+                "confidence_reasons": {
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                },
+                "coverage_reasons": {
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                },
+                "inputs": {
+                  "items": {},
+                  "type": "array"
+                },
+                "rules": {
+                  "type": "string"
+                },
+                "rules_version": {
+                  "type": "string"
+                },
+                "source_type": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ]
+                },
+                "stale": {
+                  "type": "boolean"
+                },
+                "verification_age_days": {
+                  "anyOf": [
+                    {
+                      "type": "number"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ]
+                }
+              },
+              "type": "object"
+            },
+            "last_confirmed": {},
+            "notes": {},
+            "series": {
+              "type": "string"
+            },
+            "source": {},
+            "stale": {
+              "type": "boolean"
+            },
+            "unit": {},
+            "value": {}
+          },
+          "type": "object"
+        },
+        "type": "array"
+      }
+    },
+    "type": "object"
+  },
+  "type": "array"
+}

Changed1 schema field changedOct 12, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "description": "Every series for every country of this brand",
+  "properties": {
+    "bind_series": {},
+    "countries": {},
+    "disclaimer": {},
+    "error": {
+      "description": "Present on a free refusal or error; no charge"
+    },
+    "explanation": {},
+    "how_to_pay": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "http_endpoint": {
+      "type": "string"
+    },
+    "no_charge": {
+      "type": "boolean"
+    },
+    "payment_required": {
+      "description": "true when the call needs payment; how_to_pay explains x402 or card",
+      "type": "boolean"
+    },
+    "price_usd": {
+      "type": "number"
+    },
+    "x_next_bind": {}
+  },
+  "type": "object"
+}

First observedJul 17, 2026

TDQS

A4/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations cover readOnly/idempotent/destructive, but the description adds highly relevant behavior the annotations cannot convey: PAID ($0.02), optional api_key, an x402 payment fallback, and the free-trial scope for GH series. It also warns that series values can be silently retired, motivating the alert chaining. Lacks rate/limit or response-shape detail, but that is largely covered elsewhere.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Cost is front-loaded as the first token, which is the right priority. Four dense sentences carry distinct payloads (pricing, auth, free trial, chaining), though 'so a later gazette does not silently retire the value' is jargon-heavy and could be plainer.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With an output schema present, return values need no explanation, and the description fills the genuinely missing pieces: cost, auth mechanics, and recommended post-call chaining. It omits any note on response size or ordering for a tool that returns 'every series for every country,' a minor gap for a bulk endpoint.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Only one parameter at 100% schema coverage, so baseline is 3. The description meaningfully exceeds the bare 'API key' schema description by establishing that api_key is optional and describing the alternative payment path (card checkout at /pricing or x402 instructions in the response).

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb+resource with scope: 'Snapshot of every series for every country in one call.' The 'every series / every country / one call' scope implicitly distinguishes it from single-series siblings like get_series or get_series_history, but no sibling is named explicitly, so an agent must infer the contrast.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Clear context for use: pass api_key if available, otherwise x402 payment, and GH series are free to try. It also routes the agent to follow-on tools (get_changes, register_alert) after a 200. It stops short of stating when NOT to use it versus alternatives such as get_series.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All Afriref: cited government reference data tools Inspect

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