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OpenProject CE MCP

OpenProject CE MCP

by jtauschl
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
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list_projects

Read-onlyIdempotent

Retrieve visible OpenProject projects with optional name or identifier search, pagination, and field selection to find project IDs and details.

Instructions

List visible projects with optional name or identifier search.

Under a restrictive OPENPROJECT_READ_PROJECTS, total reflects only the allowed projects already scanned to fill this page, not a full count of all matches; the search stops as soon as it has enough, so an exact total would need an extra full walk. Page until next_offset is null.

Input Schema

NameRequiredDescriptionDefault
limitNoPage size, capped at OPENPROJECT_MAX_PAGE_SIZE.
offsetNo1-based page number; pass the previous result's next_offset.
searchNo
selectNoFields to return; a requested unset field comes back as null. Allowed: active, can_delete, can_update, created_at, description, description_length, description_truncated, favorited, id, identifier, name, parent_id, parent_name, public, status, status_explanation, status_explanation_length, status_explanation_truncated, updated_at.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.4.4
  2. Removedv0.4.0
  3. Changed1 schema field changedv0.3.7
    • addedInput schema / additionalProperties
      Added value: +false
  4. Addedv0.3.3
  5. Removedv0.3.0
  6. Changed2 schema fields changedv0.2.3
    • addedInput schema / properties / select
      Added value: +{
+  "anyOf": [
+    {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "title": "Select"
+}
    • changedOutput schema / (root)
      Previous value: -{
-  "$defs": {
-    "ProjectSummary": {
-      "properties": {
-        "active": {
-          "anyOf": [
-            {
-              "type": "boolean"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "title": "Active"
-        },
-        "can_delete": {
-          "default": false,
-          "title": "Can Delete",
-          "type": "boolean"
-        },
-        "can_update": {
-          "default": false,
-          "title": "Can Update",
-          "type": "boolean"
-        },
-        "created_at": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Created At"
-        },
-        "description": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "title": "Description"
-        },
-        "id": {
-          "title": "Id",
-          "type": "integer"
-        },
-        "identifier": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "title": "Identifier"
-        },
-        "name": {
-          "title": "Name",
-          "type": "string"
-        },
-        "parent_id": {
-          "anyOf": [
-            {
-              "type": "integer"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Parent Id"
-        },
-        "parent_name": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Parent Name"
-        },
-        "public": {
-          "anyOf": [
-            {
-              "type": "boolean"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Public"
-        },
-        "status": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Status"
-        },
-        "status_explanation": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Status Explanation"
-        },
-        "updated_at": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Updated At"
-        },
-        "url": {
-          "title": "Url",
-          "type": "string"
-        }
-      },
-      "required": [
-        "id",
-        "name",
-        "identifier",
-        "active",
-        "description",
-        "url"
-      ],
-      "title": "ProjectSummary",
-      "type": "object"
-    }
-  },
-  "properties": {
-    "count": {
-      "title": "Count",
-      "type": "integer"
-    },
-    "limit": {
-      "title": "Limit",
-      "type": "integer"
-    },
-    "next_offset": {
-      "anyOf": [
-        {
-          "type": "integer"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Next Offset"
-    },
-    "offset": {
-      "title": "Offset",
-      "type": "integer"
-    },
-    "results": {
-      "items": {
-        "$ref": "#/$defs/ProjectSummary"
-      },
-      "title": "Results",
-      "type": "array"
-    },
-    "total": {
-      "title": "Total",
-      "type": "integer"
-    },
-    "truncated": {
-      "title": "Truncated",
-      "type": "boolean"
-    }
-  },
-  "required": [
-    "offset",
-    "limit",
-    "total",
-    "count",
-    "next_offset",
-    "truncated",
-    "results"
-  ],
-  "title": "ProjectListResult",
-  "type": "object"
-}New value: +null
  7. First observedv0.2.2

TDQS

A3.8/5.0
Behavior4/5

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

Annotations already declare read-only, idempotent, non-destructive behavior, so the safety bar is low. The description adds genuinely non-obvious context: under a restrictive OPENPROJECT_READ_PROJECTS the reported total reflects only scanned allowed projects, not a full count. That is real behavioral disclosure beyond structured fields.

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?

Purpose and search behavior are front-loaded in one sentence, with the permission caveat and paging instruction after. The middle clause is dense and slightly convoluted, but every part carries information an agent needs.

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 four optional parameters, no output schema, and annotations covering safety, the description supplies the two things the schema cannot: pagination termination and total-count semantics under restrictive permissions. What a project object contains is handled by the select field list in the schema.

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?

Schema coverage is 75% and limit, offset and select are already documented in-schema. The description compensates for the one undocumented parameter by explaining that search matches name or identifier, adding semantics the schema lacks.

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 and resource ('List visible projects') plus an optional search on name or identifier, so the agent knows exactly what it returns. It does not differentiate itself from the sibling get_project or list_my_project_access, leaving the single-vs-bulk choice implicit.

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 closing sentence 'Page until next_offset is null' is a concrete usage instruction and the search parameter is framed as optional. However, there is no explicit when-to-use guidance against the many sibling list/get tools (get_project, get_my_project_access, list_project_memberships), so the choice is left to inference.

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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