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Advance Workflow

advance_workflow
Destructive

Advance a workflow past a human checkpoint — approve or reject the paused step so the pipeline continues. Use the session id from run_workflow / get_workflow_session. Requires authentication.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
notesNoOptional reviewer notes recorded with the decision.
actionYesExplicit checkpoint decision: 'approve' or 'reject'.
session_idYesThe workflow session id (must be awaiting a checkpoint).
expected_step_idNoFor routed workflows, the paused result step_id returned by get_workflow_session.
expected_execution_seqNoFor routed workflows, the paused result execution_seq returned by get_workflow_session.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -{
-  "additionalProperties": false,
-  "properties": {
-    "text": {
-      "type": "string"
-    }
-  },
-  "required": [
-    "text"
-  ],
-  "type": "object"
-}New value: +null
  2. Changed2 schema fields changed
    • addedInput schema / properties / expected_execution_seq
      Added value: +{
+  "description": "For routed workflows, the paused result execution_seq returned by get_workflow_session.",
+  "minimum": 1,
+  "type": "integer"
+}
    • addedInput schema / properties / expected_step_id
      Added value: +{
+  "description": "For routed workflows, the paused result step_id returned by get_workflow_session.",
+  "type": "string"
+}
  3. First observed

TDQS

A4.2/5.0
Behavior3/5

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

Annotations already declare destructiveHint=true, idempotentHint=false, and openWorldHint=true, so the safety profile is partly carried structurally. The description usefully adds that auth is required and that the call resumes a paused pipeline, but it never explains the destructive side (e.g. that 'reject' terminates/abandons the step or that the action is not repeatable) — the most important behavioral caveat for this tool.

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 tight sentences, zero filler, with the core action front-loaded before the session-id sourcing and auth note.

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 non-idempotent, destructive, authenticated mutation with no output schema, the description covers purpose, checkpoint precondition, parameter provenance, and auth. The one gap is the consequence of a reject decision and any irreversibility, which an agent deciding between approve/reject would benefit from.

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 100%, so baseline would be 3. The description goes beyond the schema by stating where session_id comes from (run_workflow / get_workflow_session) and that the session must be checkpoint-paused, which is real operational meaning the schema does not supply.

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?

Specific verb ('advance') plus resource ('workflow') plus the exact semantic moment ('past a human checkpoint — approve or reject the paused step'). Clearly distinguishable from run_workflow, retry_workflow, and get_workflow_session in the sibling list.

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?

Tells the agent to use the session id from run_workflow / get_workflow_session and that the session must be paused at a checkpoint, which is clear situational guidance. It stops short of explicitly contrasting with retry_workflow or decide_approval, so no when-not guidance.

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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