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DSAIL

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OverviewDiscussionsAdmin

Invite a colleague to a team

dsail_invite_to_team

Invite a colleague into a team by email address.

Use when an administrator wants a specific colleague to reach the team's rulesets.

Issues a single-use invitation to one email address. This service sends no mail, so what comes back is a link the administrator passes on themselves. Only the invited address can accept it, by signing in as that address, and only once, so a forwarded link is useless to anyone else. Restricted to the team's administrators.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
emailYesThe colleague's email address. Only that address can accept the invitation, and only once.
team_idYesThe team's id (`team-…`), as returned by `dsail_create_team` or `dsail_list_workspaces`.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / oneOf
      Previous value: -[
-  {
-    "description": "A single-use invitation link for the administrator to pass on.",
-    "properties": {
-      "invitation": {
-        "type": [
-          "string",
-          "object"
-        ]
-      },
-      "ok": {
-        "const": true,
-        "type": "boolean"
-      },
-      "versions": {
-        "description": "Which engine and which wire contract produced this response.",
-        "properties": {
-          "engine": {
-            "example": "dsail-core",
-            "type": "string"
-          },
-          "engine_version": {
-            "type": "string"
-          },
-          "language_version": {
-            "description": "DSAIL language version.",
-            "type": "string"
-          },
-          "service_version": {
-            "type": "string"
-          },
-          "supported_language_versions": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          },
-          "wire_version": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "engine",
-          "engine_version",
-          "language_version",
-          "service_version",
-          "wire_version"
-        ],
-        "type": "object"
-      }
-    },
-    "required": [
-      "ok"
-    ],
-    "type": "object"
-  },
-  {
-    "properties": {
-      "error": {
-        "properties": {
-          "actual": {
-            "type": "integer"
-          },
-          "budget": {
-            "type": "string"
-          },
-          "code": {
-            "enum": [
-              "VALIDATION_REJECTED",
-              "COMPILE_FAILED",
-              "BUDGET_EXCEEDED",
-              "RULESET_NOT_FOUND",
-              "ENGINE_ERROR",
-              "BAD_REQUEST",
-              "CREDENTIAL_REQUIRED",
-              "CREDENTIAL_INVALID",
-              "CREDENTIAL_SCOPE",
-              "EVALUATION_LIMIT",
-              "ENTITLEMENT_EXCEEDED",
-              "TIER_UNAVAILABLE"
-            ],
-            "type": "string"
-          },
-          "diagnostics": {
-            "items": {
-              "properties": {
-                "line": {
-                  "type": [
-                    "integer",
-                    "null"
-                  ]
-                },
-                "message": {
-                  "type": "string"
-                },
-                "severity": {
-                  "enum": [
-                    "error",
-                    "warning"
-                  ],
-                  "type": "string"
-                }
-              },
-              "required": [
-                "severity",
-                "message"
-              ],
-              "type": "object"
-            },
-            "type": "array"
-          },
-          "docs": {
-            "description": "The docs-site page that resolves this code (markdown). Fetch it before retrying blind.",
-            "format": "uri",
-            "type": "string"
-          },
-          "failure_count": {
-            "description": "How many fields failed in total. Equal to the length of `failures` unless a very large rejection was truncated, which the message says.",
-            "type": "integer"
-          },
-          "failures": {
-            "description": "EVERY failing field, not the first one.",
-            "items": {
-              "properties": {
-                "expected": {
-                  "type": "string"
-                },
-                "field": {
-                  "type": "string"
-                },
-                "received": {
-                  "type": "string"
-                }
-              },
-              "required": [
-                "field",
-                "expected",
-                "received"
-              ],
-              "type": "object"
-            },
-            "type": "array"
-          },
-          "hint": {
-            "description": "The grammar guide, carried on compile failures so the next call can succeed without a human.",
-            "type": "string"
-          },
-          "limit": {
-            "type": "integer"
-          },
-          "message": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "code",
-          "message"
-        ],
-        "type": "object"
-      },
-      "ok": {
-        "const": false,
-        "type": "boolean"
-      },
-      "versions": {
-        "description": "Which engine and which wire contract produced this response.",
-        "properties": {
-          "engine": {
-            "example": "dsail-core",
-            "type": "string"
-          },
-          "engine_version": {
-            "type": "string"
-          },
-          "language_version": {
-            "description": "DSAIL language version.",
-            "type": "string"
-          },
-          "service_version": {
-            "type": "string"
-          },
-          "supported_language_versions": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          },
-          "wire_version": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "engine",
-          "engine_version",
-          "language_version",
-          "service_version",
-          "wire_version"
-        ],
-        "type": "object"
-      }
-    },
-    "required": [
-      "ok",
-      "error",
-      "versions"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "description": "A single-use invitation link for the administrator to pass on.",
+    "properties": {
+      "invitation": {
+        "type": [
+          "string",
+          "object"
+        ]
+      },
+      "ok": {
+        "const": true,
+        "type": "boolean"
+      },
+      "versions": {
+        "description": "Which engine and which wire contract produced this response.",
+        "properties": {
+          "engine": {
+            "example": "dsail-core",
+            "type": "string"
+          },
+          "engine_version": {
+            "type": "string"
+          },
+          "language_version": {
+            "description": "DSAIL language version.",
+            "type": "string"
+          },
+          "service_version": {
+            "type": "string"
+          },
+          "supported_language_versions": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "wire_version": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "engine",
+          "engine_version",
+          "language_version",
+          "service_version",
+          "wire_version"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "ok"
+    ],
+    "type": "object"
+  },
+  {
+    "properties": {
+      "error": {
+        "properties": {
+          "actual": {
+            "description": "How much the request used, where that is known. Absent for solver_memory_mb: the solver stops at the limit.",
+            "type": "integer"
+          },
+          "budget": {
+            "type": "string"
+          },
+          "code": {
+            "enum": [
+              "VALIDATION_REJECTED",
+              "COMPILE_FAILED",
+              "BUDGET_EXCEEDED",
+              "RULESET_NOT_FOUND",
+              "ENGINE_ERROR",
+              "ENGINE_BUSY",
+              "BAD_REQUEST",
+              "CREDENTIAL_REQUIRED",
+              "CREDENTIAL_INVALID",
+              "CREDENTIAL_SCOPE",
+              "EVALUATION_LIMIT",
+              "ENTITLEMENT_EXCEEDED",
+              "TIER_UNAVAILABLE"
+            ],
+            "type": "string"
+          },
+          "diagnostics": {
+            "items": {
+              "properties": {
+                "line": {
+                  "type": [
+                    "integer",
+                    "null"
+                  ]
+                },
+                "message": {
+                  "type": "string"
+                },
+                "severity": {
+                  "enum": [
+                    "error",
+                    "warning"
+                  ],
+                  "type": "string"
+                }
+              },
+              "required": [
+                "severity",
+                "message"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "docs": {
+            "description": "The docs-site page that resolves this code (markdown). Fetch it before retrying blind.",
+            "format": "uri",
+            "type": "string"
+          },
+          "failure_count": {
+            "description": "How many fields failed in total. Equal to the length of `failures` unless a very large rejection was truncated, which the message says.",
+            "type": "integer"
+          },
+          "failures": {
+            "description": "EVERY failing field, not the first one.",
+            "items": {
+              "properties": {
+                "expected": {
+                  "type": "string"
+                },
+                "field": {
+                  "type": "string"
+                },
+                "received": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "field",
+                "expected",
+                "received"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "hint": {
+            "description": "The grammar guide, carried on compile failures so the next call can succeed without a human.",
+            "type": "string"
+          },
+          "limit": {
+            "type": "integer"
+          },
+          "message": {
+            "type": "string"
+          },
+          "retry_after_ms": {
+            "description": "ENGINE_BUSY only: when to retry. The REST door also sends it, in seconds, as Retry-After.",
+            "type": "integer"
+          }
+        },
+        "required": [
+          "code",
+          "message"
+        ],
+        "type": "object"
+      },
+      "ok": {
+        "const": false,
+        "type": "boolean"
+      },
+      "versions": {
+        "description": "Which engine and which wire contract produced this response.",
+        "properties": {
+          "engine": {
+            "example": "dsail-core",
+            "type": "string"
+          },
+          "engine_version": {
+            "type": "string"
+          },
+          "language_version": {
+            "description": "DSAIL language version.",
+            "type": "string"
+          },
+          "service_version": {
+            "type": "string"
+          },
+          "supported_language_versions": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "wire_version": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "engine",
+          "engine_version",
+          "language_version",
+          "service_version",
+          "wire_version"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "ok",
+      "error",
+      "versions"
+    ],
+    "type": "object"
+  }
+]
  2. Changed3 schema fields changed
    • addedInput schema / properties / email / description
      Added value: +"The colleague's email address. Only that address can accept the invitation, and only once."
    • addedInput schema / properties / team_id / description
      Added value: +"The team's id (`team-…`), as returned by `dsail_create_team` or `dsail_list_workspaces`."
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "description": "The invitation. On failure `ok` is false and `error` carries `code`, `message` and `docs`, the URL of the page that resolves it.",
+  "oneOf": [
+    {
+      "description": "A single-use invitation link for the administrator to pass on.",
+      "properties": {
+        "invitation": {
+          "type": [
+            "string",
+            "object"
+          ]
+        },
+        "ok": {
+          "const": true,
+          "type": "boolean"
+        },
+        "versions": {
+          "description": "Which engine and which wire contract produced this response.",
+          "properties": {
+            "engine": {
+              "example": "dsail-core",
+              "type": "string"
+            },
+            "engine_version": {
+              "type": "string"
+            },
+            "language_version": {
+              "description": "DSAIL language version.",
+              "type": "string"
+            },
+            "service_version": {
+              "type": "string"
+            },
+            "supported_language_versions": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "wire_version": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "engine",
+            "engine_version",
+            "language_version",
+            "service_version",
+            "wire_version"
+          ],
+          "type": "object"
+        }
+      },
+      "required": [
+        "ok"
+      ],
+      "type": "object"
+    },
+    {
+      "properties": {
+        "error": {
+          "properties": {
+            "actual": {
+              "type": "integer"
+            },
+            "budget": {
+              "type": "string"
+            },
+            "code": {
+              "enum": [
+                "VALIDATION_REJECTED",
+                "COMPILE_FAILED",
+                "BUDGET_EXCEEDED",
+                "RULESET_NOT_FOUND",
+                "ENGINE_ERROR",
+                "BAD_REQUEST",
+                "CREDENTIAL_REQUIRED",
+                "CREDENTIAL_INVALID",
+                "CREDENTIAL_SCOPE",
+                "EVALUATION_LIMIT",
+                "ENTITLEMENT_EXCEEDED",
+                "TIER_UNAVAILABLE"
+              ],
+              "type": "string"
+            },
+            "diagnostics": {
+              "items": {
+                "properties": {
+                  "line": {
+                    "type": [
+                      "integer",
+                      "null"
+                    ]
+                  },
+                  "message": {
+                    "type": "string"
+                  },
+                  "severity": {
+                    "enum": [
+                      "error",
+                      "warning"
+                    ],
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "severity",
+                  "message"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            },
+            "docs": {
+              "description": "The docs-site page that resolves this code (markdown). Fetch it before retrying blind.",
+              "format": "uri",
+              "type": "string"
+            },
+            "failure_count": {
+              "description": "How many fields failed in total. Equal to the length of `failures` unless a very large rejection was truncated, which the message says.",
+              "type": "integer"
+            },
+            "failures": {
+              "description": "EVERY failing field, not the first one.",
+              "items": {
+                "properties": {
+                  "expected": {
+                    "type": "string"
+                  },
+                  "field": {
+                    "type": "string"
+                  },
+                  "received": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "field",
+                  "expected",
+                  "received"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            },
+            "hint": {
+              "description": "The grammar guide, carried on compile failures so the next call can succeed without a human.",
+              "type": "string"
+            },
+            "limit": {
+              "type": "integer"
+            },
+            "message": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "code",
+            "message"
+          ],
+          "type": "object"
+        },
+        "ok": {
+          "const": false,
+          "type": "boolean"
+        },
+        "versions": {
+          "description": "Which engine and which wire contract produced this response.",
+          "properties": {
+            "engine": {
+              "example": "dsail-core",
+              "type": "string"
+            },
+            "engine_version": {
+              "type": "string"
+            },
+            "language_version": {
+              "description": "DSAIL language version.",
+              "type": "string"
+            },
+            "service_version": {
+              "type": "string"
+            },
+            "supported_language_versions": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "wire_version": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "engine",
+            "engine_version",
+            "language_version",
+            "service_version",
+            "wire_version"
+          ],
+          "type": "object"
+        }
+      },
+      "required": [
+        "ok",
+        "error",
+        "versions"
+      ],
+      "type": "object"
+    }
+  ],
+  "type": "object"
+}
  3. First observed

TDQS

A4.4/5.0
Behavior5/5

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

Annotations provide only basic safety hints (not read-only, not idempotent, not destructive), so the description carries the burden of disclosing key behaviors. It does this thoroughly: no email is sent, a single-use link is returned, only the invited address can accept it, and only once, rendering forwarded links useless. It also highlights the admin-only restriction. This goes well beyond what annotations imply, fully justifying the description's additional context.

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?

The description is composed of four sentences, each adding a distinct piece of information: the core action, the trigger scenario, the no-mail and single-use behavior, and the admin restriction. It is front-loaded with the main verb and remains efficient, though it could be tightened. Minor redundancy with the schema's email description prevents a 5.

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

Completeness5/5

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

For a tool with two required parameters, full schema coverage, and an output schema, the description covers all critical aspects: when to invoke it, the security constraints, the mechanics of delivery, and the limitations. It does not explain return values, but the output schema presumably does. There are no gaps that would leave an agent unsure how to call it correctly.

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 coverage is 100%, and each parameter already has a descriptive explanation (e.g., email's single-use acceptance, team_id's origin). The description reinforces these points but does not add meaningful new semantics beyond what the schema provides. Baseline 3 is appropriate when schema does the heavy lifting; the description's extra details are about tool behavior, not parameter meaning.

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?

The description clearly states the action: inviting a colleague into a team via email. It specifies the method (by email address), the target (specific colleague), and the goal (reach the team's rulesets). This distinguishes it from sibling team management tools like remove_from_team or set_team_role, and the single-use, admin-only detail further clarifies its unique role.

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?

The description explicitly states when to use it: 'Use when an administrator wants a specific colleague to reach the team's rulesets.' It also notes the restriction to administrators, giving clear context. However, it does not name alternatives or explicitly state when not to use it, so it falls just short of a 5, which would require naming a sibling and the condition that selects it.

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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