Search actual lessons and public library content with stable identifiers.
| Name | Required | Description | Default |
|---|---|---|---|
| type | No | ||
| limit | No | ||
| query | Yes | ||
| cursor | No | ||
| locale | No | MCP transport locale; not a service input field. | de |
| pathId | No | ||
| idempotencyKey | No | Transport retry key, forwarded as Idempotency-Key. |
| Name | Required | Description | Default |
|---|---|---|---|
| errors | Yes | ||
| result | Yes | ||
| success | Yes | ||
| messages | Yes | ||
| request_id | Yes |
Changes observed during successful MCP inspections.
Input schema / $schemaAdded value: +"https://json-schema.org/draft/2020-12/schema"Input schema / additionalPropertiesAdded value: +falseInput schema / properties / cursorAdded value: +{
+ "maxLength": 2048,
+ "minLength": 1,
+ "type": "string"
+}Input schema / properties / idempotencyKeyAdded value: +{
+ "description": "Transport retry key, forwarded as Idempotency-Key.",
+ "maxLength": 200,
+ "minLength": 1,
+ "type": "string"
+}Input schema / properties / limit / defaultRemoved value: -10Input schema / properties / limit / maximumPrevious value: -50New value: +100Input schema / properties / limit / typePrevious value: -"number"New value: +"integer"Input schema / properties / locale / defaultAdded value: +"de"Input schema / properties / locale / descriptionPrevious value: -"Language. de=German, en=English, es=Spanish. Default en."New value: +"MCP transport locale; not a service input field."Input schema / properties / pathIdAdded value: +{
+ "enum": [
+ "loslegen",
+ "ki-im-alltag",
+ "ki-im-job",
+ "fuer-entwickler"
+ ],
+ "type": "string"
+}Input schema / properties / query / descriptionRemoved value: -"Search keywords"Input schema / properties / query / maxLengthAdded value: +160Input schema / properties / query / minLengthAdded value: +1Input schema / properties / typeAdded value: +{
+ "anyOf": [
+ {
+ "enum": [
+ "prompt",
+ "playbook",
+ "skill",
+ "tool",
+ "agent",
+ "guide",
+ "glossary"
+ ],
+ "type": "string"
+ },
+ {
+ "const": "lesson",
+ "type": "string"
+ }
+ ]
+}Output schema / (root)Previous value: -nullNew value: +{
+ "oneOf": [
+ {
+ "properties": {
+ "errors": {
+ "maxItems": 0
+ },
+ "result": {
+ "additionalProperties": false,
+ "properties": {
+ "items": {
+ "items": {
+ "anyOf": [
+ {
+ "additionalProperties": false,
+ "properties": {
+ "access": {
+ "enum": [
+ "free",
+ "premium"
+ ],
+ "type": "string"
+ },
+ "categories": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "contentLocale": {
+ "enum": [
+ "de",
+ "en",
+ "es"
+ ],
+ "type": "string"
+ },
+ "creditPrice": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "description": {
+ "type": "string"
+ },
+ "euroPrice": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "href": {
+ "type": "string"
+ },
+ "id": {
+ "type": "string"
+ },
+ "locale": {
+ "enum": [
+ "de",
+ "en",
+ "es"
+ ],
+ "type": "string"
+ },
+ "source": {
+ "additionalProperties": false,
+ "properties": {
+ "href": {
+ "type": "string"
+ },
+ "kind": {
+ "enum": [
+ "playbook",
+ "concept"
+ ],
+ "type": "string"
+ },
+ "label": {
+ "type": "string"
+ },
+ "slug": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "kind",
+ "slug",
+ "href",
+ "label"
+ ],
+ "type": "object"
+ },
+ "title": {
+ "type": "string"
+ },
+ "translationPending": {
+ "type": "boolean"
+ },
+ "type": {
+ "enum": [
+ "prompt",
+ "playbook",
+ "skill",
+ "tool",
+ "agent",
+ "guide",
+ "glossary"
+ ],
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "type",
+ "title",
+ "description",
+ "href",
+ "access",
+ "creditPrice",
+ "euroPrice",
+ "categories",
+ "locale",
+ "contentLocale",
+ "translationPending",
+ "source"
+ ],
+ "type": "object"
+ },
+ {
+ "additionalProperties": false,
+ "properties": {
+ "access": {
+ "enum": [
+ "free",
+ "premium"
+ ],
+ "type": "string"
+ },
+ "categories": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "contentLocale": {
+ "enum": [
+ "de",
+ "en",
+ "es"
+ ],
+ "type": "string"
+ },
+ "creditPrice": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "description": {
+ "type": "string"
+ },
+ "euroPrice": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "href": {
+ "type": "string"
+ },
+ "id": {
+ "type": "string"
+ },
+ "locale": {
+ "enum": [
+ "de",
+ "en",
+ "es"
+ ],
+ "type": "string"
+ },
+ "source": {
+ "additionalProperties": false,
+ "properties": {
+ "href": {
+ "type": "string"
+ },
+ "kind": {
+ "const": "lesson",
+ "type": "string"
+ },
+ "label": {
+ "type": "string"
+ },
+ "level": {
+ "maximum": 6,
+ "minimum": 1,
+ "type": "integer"
+ },
+ "slug": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "kind",
+ "level",
+ "slug",
+ "href",
+ "label"
+ ],
+ "type": "object"
+ },
+ "title": {
+ "type": "string"
+ },
+ "translationPending": {
+ "type": "boolean"
+ },
+ "type": {
+ "const": "lesson",
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "title",
+ "description",
+ "href",
+ "access",
+ "creditPrice",
+ "euroPrice",
+ "categories",
+ "locale",
+ "contentLocale",
+ "translationPending",
+ "type",
+ "source"
+ ],
+ "type": "object"
+ }
+ ]
+ },
+ "type": "array"
+ },
+ "nextCursor": {
+ "type": [
+ "string",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "items",
+ "nextCursor"
+ ],
+ "type": "object"
+ },
+ "success": {
+ "const": true
+ }
+ }
+ },
+ {
+ "properties": {
+ "errors": {
+ "minItems": 1
+ },
+ "result": {
+ "type": "null"
+ },
+ "success": {
+ "const": false
+ }
+ }
+ }
+ ],
+ "properties": {
+ "errors": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "code": {
+ "type": "number"
+ },
+ "documentation_url": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "hint": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "message": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "slug": {
+ "minLength": 1,
+ "type": "string"
+ }
+ },
+ "required": [
+ "code",
+ "slug",
+ "message",
+ "hint",
+ "documentation_url"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "messages": {
+ "type": "array"
+ },
+ "request_id": {
+ "minLength": 1,
+ "type": "string"
+ },
+ "result": {},
+ "success": {
+ "type": "boolean"
+ }
+ },
+ "required": [
+ "success",
+ "result",
+ "errors",
+ "messages",
+ "request_id"
+ ],
+ "type": "object"
+}Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnly, idempotent, non-destructive, and closed-world, so the safety profile is covered. The description adds little beyond them — the phrase "stable identifiers" hints that results carry durable IDs, but nothing is said about pagination via cursor, result ranking, or limits.
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?
A single front-loaded sentence with no filler or repetition. It is efficient, though the brevity shades into under-specification for a seven-parameter tool.
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 seven parameters, a low-coverage schema, and a large sibling set of overlapping search/list tools, the description should route the agent and explain filtering and pagination. It does neither; the existence of an output schema excuses return-value detail but not the routing and parameter 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?
Schema description coverage is only 29%, and the description compensates for none of it: `query` syntax/length, the `type` enum (including "lesson"), `limit`, `cursor`, and `pathId` are all undocumented. Only `locale` and `idempotencyKey` carry schema descriptions, and the tool text says nothing about any parameter.
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?
States a specific verb ("Search") and resource scope ("lessons and public library content"), which is more precise than the name alone. However "stable identifiers" is unexplained and it doesn't distinguish itself from the sibling `search` or `academy_lessons`, so an agent can't tell why to pick this over them.
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 statement of when to use this tool versus `search`, `academy_lessons`, `academy_library`, or `academy_suggest`, all of which plausibly overlap. Usage is only implied by the word "Search"; no exclusions or routing conditions are given.
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.