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by io.opsphere.mcp-cursor
OverviewDiscussionsAdmin

ECR Repositories

aws_ecr_repos
Read-only

List available ECR repositories, optionally filtered by name. Example: "list ECR repos containing storefront".

Input Schema

NameRequiredDescriptionDefault
regionNoRegión AWS (ej: eu-central-1)
profileNoAWS_PROFILE opcional
context_idNoOptional explicit Connection Hub work context (ctx_*). Omit to use the conversation's active workspace; global Hub tools ignore it.
maxResultsNoMáximo de repos a mostrar (default: 50)
namePrefixNoFiltro por nombre (substring, case-insensitive)

Output Schema

NameRequiredDescriptionDefault
okYes
dataYes
contractVersionYes
dataSchemaVersionYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed14 schema fields changed
    • changedOutput schema / properties / data / additionalProperties
      Previous value: -trueNew value: +false
    • removedOutput schema / properties / data / properties / count
      Removed value: -{
-  "type": "number"
-}
    • addedOutput schema / properties / data / properties / gaps
      Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}
    • removedOutput schema / properties / data / properties / items
      Removed value: -{
-  "items": {
-    "additionalProperties": true,
-    "properties": {},
-    "type": "object"
-  },
-  "type": "array"
-}
    • removedOutput schema / properties / data / properties / nextToken
      Removed value: -{
-  "type": [
-    "string",
-    "null"
-  ]
-}
    • addedOutput schema / properties / data / properties / pageInfo
      Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "hasMore": {
+      "type": "boolean"
+    },
+    "nextCursor": {
+      "type": "string"
+    },
+    "returned": {
+      "minimum": 0,
+      "type": "integer"
+    },
+    "total": {
+      "minimum": 0,
+      "type": "integer"
+    }
+  },
+  "required": [
+    "returned",
+    "hasMore"
+  ],
+  "type": "object"
+}
    • addedOutput schema / properties / data / properties / partial
      Added value: +{
+  "type": "boolean"
+}
    • addedOutput schema / properties / data / properties / repositories
      Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "createdAt": {
+        "format": "date-time",
+        "type": "string"
+      },
+      "name": {
+        "type": "string"
+      },
+      "region": {
+        "type": "string"
+      },
+      "uri": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "name"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}
    • removedOutput schema / properties / data / properties / results
      Removed value: -{
-  "$ref": "#/properties/data/properties/items"
-}
    • addedOutput schema / properties / data / properties / truncated
      Added value: +{
+  "type": "boolean"
+}
    • addedOutput schema / properties / data / properties / warnings
      Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}
    • addedOutput schema / properties / data / required
      Added value: +[
+  "repositories",
+  "partial",
+  "truncated",
+  "warnings",
+  "gaps"
+]
    • addedOutput schema / properties / dataSchemaVersion
      Added value: +{
+  "const": 2,
+  "type": "number"
+}
    • changedOutput schema / required
      Previous value: -[
-  "contractVersion",
-  "ok",
-  "data"
-]New value: +[
+  "contractVersion",
+  "dataSchemaVersion",
+  "ok",
+  "data"
+]
  2. First observed

TDQS

B3.4/5.0
Behavior2/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, and the description does not contradict them. However, it adds no behavioral context beyond the annotations, such as pagination behavior, maxResults truncation, or any other operational trait.

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

Conciseness5/5

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

The description is two short sentences with the core purpose front-loaded and no wasted wording. The example is brief and directly illustrates the optional name filter.

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?

For a simple read-only list tool with full schema coverage, annotations, and an output schema, the description is mostly complete. It could be stronger by mentioning the related aws_ecr_images tool for listing images within a repository.

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

Parameters3/5

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

Schema description coverage is 100%, so the schema already documents region, profile, context_id, maxResults, and namePrefix. The description only restates the optional name filter and adds no syntax or semantics beyond what the schema provides.

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?

The description states a specific verb and resource: 'List available ECR repositories,' with optional name filtering. It clearly distinguishes repositories from sibling tools like aws_ecr_images, though it does not explicitly mention that sibling as an alternative.

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

Usage Guidelines3/5

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

The example 'list ECR repos containing storefront' implies usage for name-filtered listing, but the description does not state when to use this tool versus aws_ecr_images or other AWS listing tools. Guidance is present only by implication.

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

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