cycles-mcp-server

List Reservations

cycles_list_reservations

Read-only

List budget reservations filtered by status or subject to debug stuck items or audit usage.

Instructions

List reservations, optionally filtered by status (ACTIVE, COMMITTED, RELEASED, EXPIRED) or subject fields. Useful for debugging stuck reservations or auditing budget usage.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`app`	No
`agent`	No
`limit`	No
`cursor`	No
`status`	No
`tenant`	No
`toolset`	No
`workflow`	No
`workspace`	No
`idempotencyKey`	No

Output Schema

TableJSON Schema

Name	Required	Description	Default
`hasMore`	No
`nextCursor`	No
`reservations`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv0.6.0Jul 25, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "hasMore": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "nextCursor": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "reservations": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "action": {
+            "additionalProperties": false,
+            "properties": {
+              "kind": {
+                "type": "string"
+              },
+              "name": {
+                "type": "string"
+              },
+              "tags": {
+                "anyOf": [
+                  {
+                    "items": {
+                      "type": "string"
+                    },
+                    "type": "array"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              }
+            },
+            "required": [
+              "kind",
+              "name"
+            ],
+            "type": "object"
+          },
+          "affectedScopes": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "createdAtMs": {
+            "type": "number"
+          },
+          "expiresAtMs": {
+            "type": "number"
+          },
+          "idempotencyKey": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "reservationId": {
+            "type": "string"
+          },
+          "reserved": {
+            "additionalProperties": false,
+            "properties": {
+              "amount": {
+                "type": "number"
+              },
+              "unit": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "unit",
+              "amount"
+            ],
+            "type": "object"
+          },
+          "scopePath": {
+            "type": "string"
+          },
+          "status": {
+            "type": "string"
+          },
+          "subject": {
+            "additionalProperties": false,
+            "properties": {
+              "agent": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "app": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "dimensions": {
+                "anyOf": [
+                  {
+                    "additionalProperties": {
+                      "type": "string"
+                    },
+                    "propertyNames": {
+                      "type": "string"
+                    },
+                    "type": "object"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "tenant": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "toolset": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "workflow": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "workspace": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              }
+            },
+            "type": "object"
+          }
+        },
+        "required": [
+          "reservationId",
+          "status",
+          "subject",
+          "action",
+          "reserved",
+          "createdAtMs",
+          "expiresAtMs",
+          "scopePath",
+          "affectedScopes"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "reservations"
+  ],
+  "type": "object"
+}

First observedv0.2.4Jul 5, 2026

TDQS

A3.7/5.0

Behavior3/5

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

Annotations already provide readOnlyHint=true, so the description adds minimal behavioral context. Does not disclose pagination (cursor/limit) or any other traits beyond the annotations.

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?

Two concise sentences with no wasted words. Front-loaded with action and resource, then filters, then use cases. Excellent structure.

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

Completeness2/5

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

Despite having an output schema, the description does not cover the majority of input parameters or their semantics. With 10 parameters, this is insufficient for an agent to select and invoke correctly without external knowledge.

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

Parameters2/5

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

Schema description coverage is 0%. Description only mentions 'status' and 'subject fields' vaguely, but fails to explain 8 other parameters (app, agent, limit, cursor, etc.). Heavily under-documented for a 10-param tool.

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

Purpose5/5

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

Description clearly states verb (List), resource (reservations), and optional filter (status). Immediately distinguishes from sibling tools by its read-only nature and specific use cases.

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?

Explicitly states use cases: 'debugging stuck reservations or auditing budget usage.' No explicit when-not-to-use, but context implies read-only. Sibling differentiation is indirect.

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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