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slack_delete_scheduled_message

DestructiveIdempotent

Delete a scheduled Slack message before delivery to prevent unwanted posts from going live. Clean up pending announcements directly via your connected Slack account.

Instructions

Slack connector operation delete_scheduled_message (platform tool slack.delete_scheduled_message).

Routes only through the exact project/account governed connector authority.

Args: arguments: JSON string of arguments for the connector operation. project_id: Authenticated Project UUID. project_ref: Exact project correlation reference. connector_account_ref: Project-bound connector account alias. idempotency_key: Stable business-action identity. effect: Claimed read or write effect; Spring verifies it. approval_ref: Approved platform task UUID when resuming a write.

Input Schema

TableJSON Schema

Name	Required	Default
`effect`	No
`arguments`	No	{}
`project_id`	No
`project_ref`	No
`approval_ref`	No
`idempotency_key`	No
`connector_account_ref`	No

Output Schema

TableJSON Schema

Name	Required	Description	Default
`result`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed6 schema fields changedv0.1.1Sep 7, 2026

addedInput schema / properties / approval_ref

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "title": "Approval Ref"
+}

addedInput schema / properties / connector_account_ref

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "title": "Connector Account Ref"
+}

addedInput schema / properties / effect

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "title": "Effect"
+}

addedInput schema / properties / idempotency_key

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "title": "Idempotency Key"
+}

addedInput schema / properties / project_id

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "title": "Project Id"
+}

addedInput schema / properties / project_ref

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "title": "Project Ref"
+}

First observedv0.1.0Jun 25, 2026

TDQS

A3.7/5.0

Behavior3/5

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

Annotations already disclose destructive and idempotent behavior, so the description does not need to repeat them. However, the description adds only the routing/authority note and omits details like side effects, reversibility, or failure modes, providing minimal additional transparency 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?

The description is concise, with a short introductory sentence and a clear bulleted list of arguments. No irrelevant details or redundant phrasing are present.

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

Completeness3/5

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

The description lacks connector-specific details for the 'arguments' JSON, such as required fields like scheduled_message_id or channel, which are essential for actually invoking the Slack delete operation. While the generic wrapper parameters are described, the practical payload remains unspecified, so an agent may not know how to construct a valid call.

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?

The schema only lists parameter titles and defaults, while the description adds meaningful one-line semantics for all seven parameters such as 'project_id: Authenticated Project UUID' and 'connector_account_ref: Project-bound connector account alias'. The 'arguments' parameter remains generic without concrete connector-specific fields, but overall the description substantially supplements the schema.

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 identifies the tool as the Slack connector operation 'delete_scheduled_message' and specifies the platform tool name. The verb 'delete' and resource 'scheduled message' make the purpose unambiguous, and it is distinct from sibling tools like slack_delete_message or slack_schedule_message.

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

Usage Guidelines2/5

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

The description provides no explicit guidance on when to use this tool versus alternatives such as slack_delete_message or slack_list_scheduled_messages. It mentions routing through connector authority but does not explain the intended scenario or prerequisites, leaving usage decisions 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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