Skip to main content
Glama
Sign In

Kuro

by com.meetkuro.api
OverviewDiscussionsAdmin

Retry workflow run

retry_workflow_run

Pick a failed or canceled run up where it stopped, using its current revision from get_workflow_run. Every finished step and every finished output is kept; only the work that did not finish is attempted again. quote=true prices the retry and changes nothing.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "run_id": "<run_id>",
      "revision": "<revision>"
    },
    "name": "retry_workflow_run"
  }
}

Input Schema

NameRequiredDescriptionDefault
quoteNo
run_idYes
revisionYes

Output Schema

NameRequiredDescriptionDefault
runNo
countNo
stepsNo
creditsNo
fan_outsNo
recoveryNo
checkpointNo
storyboardNo
conditionalNo
generationsNo
review_hashNo
unit_creditsNo
analysis_creditsNo
checkpoint_errorNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed4 schema fields changed
    • changedOutput schema / properties / generations / items / additionalProperties
      Previous value: -{}New value: +false
    • addedOutput schema / properties / generations / items / description
      Added value: +"One image, clip, voice-over or piece of music."
    • addedOutput schema / properties / generations / items / properties
      Added value: +{
+  "app_url": {
+    "description": "Opens it in the app.",
+    "format": "uri",
+    "type": "string"
+  },
+  "aspect_ratio": {
+    "description": "Null for audio.",
+    "type": [
+      "string",
+      "null"
+    ]
+  },
+  "caption_style": {
+    "anyOf": [
+      {
+        "additionalProperties": false,
+        "properties": {
+          "anchor": {
+            "default": "bottom",
+            "enum": [
+              "top",
+              "bottom"
+            ],
+            "type": "string"
+          },
+          "border": {
+            "anyOf": [
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "color": {
+                    "$ref": "#/properties/generations/items/properties/caption_style/anyOf/0/properties/color",
+                    "default": "#000000"
+                  },
+                  "kind": {
+                    "const": "outline",
+                    "type": "string"
+                  },
+                  "scale": {
+                    "default": 0.049,
+                    "maximum": 0.3,
+                    "minimum": 0,
+                    "type": "number"
+                  },
+                  "shadow_scale": {
+                    "default": 0.012,
+                    "maximum": 0.3,
+                    "minimum": 0,
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "kind"
+                ],
+                "type": "object"
+              },
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "color": {
+                    "$ref": "#/properties/generations/items/properties/caption_style/anyOf/0/properties/color",
+                    "default": "#000000"
+                  },
+                  "kind": {
+                    "const": "plate",
+                    "type": "string"
+                  },
+                  "pad_scale": {
+                    "default": 0.025,
+                    "maximum": 0.3,
+                    "minimum": 0,
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "kind"
+                ],
+                "type": "object"
+              }
+            ],
+            "default": {
+              "color": "#000000",
+              "kind": "outline",
+              "scale": 0.049,
+              "shadow_scale": 0.012
+            }
+          },
+          "casing": {
+            "default": "upper",
+            "enum": [
+              "none",
+              "upper"
+            ],
+            "type": "string"
+          },
+          "color": {
+            "default": "#FFFFFF",
+            "pattern": "^#[0-9a-fA-F]{6}(?:[0-9a-fA-F]{2})?$",
+            "type": "string"
+          },
+          "font_id": {
+            "default": "noto-sans",
+            "enum": [
+              "inter",
+              "montserrat",
+              "oswald",
+              "archivo-black",
+              "noto-sans",
+              "tiktok-sans"
+            ],
+            "type": "string"
+          },
+          "font_scale": {
+            "default": 0.075,
+            "maximum": 0.2,
+            "minimum": 0.02,
+            "type": "number"
+          },
+          "font_weight": {
+            "default": 700,
+            "maximum": 900,
+            "minimum": 100,
+            "multipleOf": 100,
+            "type": "integer"
+          },
+          "grouping": {
+            "additionalProperties": false,
+            "default": {
+              "gap_seconds": null,
+              "max_chars": null,
+              "max_lines": 2,
+              "max_words": null,
+              "unit": "phrase"
+            },
+            "properties": {
+              "gap_seconds": {
+                "anyOf": [
+                  {
+                    "maximum": 4,
+                    "minimum": 0,
+                    "type": "number"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ],
+                "default": null
+              },
+              "max_chars": {
+                "anyOf": [
+                  {
+                    "maximum": 160,
+                    "minimum": 8,
+                    "type": "integer"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ],
+                "default": null
+              },
+              "max_lines": {
+                "default": 2,
+                "enum": [
+                  1,
+                  2
+                ],
+                "type": "number"
+              },
+              "max_words": {
+                "anyOf": [
+                  {
+                    "maximum": 24,
+                    "minimum": 1,
+                    "type": "integer"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ],
+                "default": null
+              },
+              "unit": {
+                "default": "phrase",
+                "enum": [
+                  "word",
+                  "phrase",
+                  "sentence"
+                ],
+                "type": "string"
+              }
+            },
+            "type": "object"
+          },
+          "highlight": {
+            "default": "active_word",
+            "enum": [
+              "none",
+              "active_word",
+              "karaoke"
+            ],
+            "type": "string"
+          },
+          "highlight_color": {
+            "$ref": "#/properties/generations/items/properties/caption_style/anyOf/0/properties/color",
+            "default": "#FFD700"
+          },
+          "italic": {
+            "default": false,
+            "type": "boolean"
+          },
+          "margin_h": {
+            "default": 0.06,
+            "maximum": 0.4,
+            "minimum": 0,
+            "type": "number"
+          },
+          "margin_v": {
+            "anyOf": [
+              {
+                "const": "auto",
+                "type": "string"
+              },
+              {
+                "maximum": 0.45,
+                "minimum": 0,
+                "type": "number"
+              }
+            ],
+            "default": "auto"
+          },
+          "schema_version": {
+            "const": "1.0",
+            "default": "1.0",
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      {
+        "type": "null"
+      }
+    ]
+  },
+  "created_at": {
+    "format": "date-time",
+    "type": "string"
+  },
+  "credits": {
+    "description": "Credits charged. Zero when your own provider key or the free allowance paid.",
+    "type": [
+      "number",
+      "null"
+    ]
+  },
+  "error": {
+    "description": "Why it failed. Null otherwise.",
+    "type": [
+      "string",
+      "null"
+    ]
+  },
+  "id": {
+    "format": "uuid",
+    "type": "string"
+  },
+  "model": {
+    "description": "The model id it was made with (`GET /v1/models`).",
+    "type": "string"
+  },
+  "object": {
+    "const": "generation",
+    "type": "string"
+  },
+  "output_url": {
+    "anyOf": [
+      {
+        "format": "uri",
+        "type": "string"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "description": "The finished file, once `ready`. A signed link that works for about an hour; read the generation again for a fresh one."
+  },
+  "paid_by": {
+    "description": "Who paid: \"credits\", \"house\" (the free allowance), \"server\" (a server that charges nothing), or the vendor of your own key (\"replicate\", \"fal\", …).",
+    "type": [
+      "string",
+      "null"
+    ]
+  },
+  "prompt": {
+    "type": "string"
+  },
+  "ready_in_seconds": {
+    "description": "Roughly how long an unfinished generation has left; 0 means past its usual time.",
+    "type": [
+      "number",
+      "null"
+    ]
+  },
+  "recipe_id": {
+    "anyOf": [
+      {
+        "$ref": "#/properties/generations/items/properties/id"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "description": "The recipe it was made with, if any."
+  },
+  "refined_from": {
+    "anyOf": [
+      {
+        "format": "uuid",
+        "type": "string"
+      },
+      {
+        "type": "null"
+      }
+    ]
+  },
+  "stalled": {
+    "type": "boolean"
+  },
+  "status": {
+    "description": "`ready` and `failed` are final.",
+    "enum": [
+      "queued",
+      "generating",
+      "ready",
+      "failed"
+    ],
+    "type": "string"
+  },
+  "thumbnail_url": {
+    "anyOf": [
+      {
+        "$ref": "#/properties/generations/items/properties/output_url/anyOf/0"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "description": "A small still of the result, for a grid. Null for audio and while it works."
+  },
+  "type": {
+    "description": "What was made. New values may be added; treat an unknown one as opaque.",
+    "enum": [
+      "image",
+      "clip",
+      "voiceover",
+      "music",
+      "tool"
+    ],
+    "type": "string"
+  },
+  "vendor_phase": {
+    "anyOf": [
+      {
+        "enum": [
+          "queued",
+          "running"
+        ],
+        "type": "string"
+      },
+      {
+        "type": "null"
+      }
+    ]
+  }
+}
    • addedOutput schema / properties / generations / items / required
      Added value: +[
+  "object",
+  "id",
+  "type",
+  "status",
+  "model",
+  "prompt",
+  "aspect_ratio",
+  "output_url",
+  "thumbnail_url",
+  "credits",
+  "paid_by",
+  "error",
+  "ready_in_seconds",
+  "recipe_id",
+  "created_at",
+  "app_url",
+  "refined_from",
+  "caption_style",
+  "vendor_phase",
+  "stalled"
+]
  2. First observed

TDQS

A3.8/5.0
Behavior4/5

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

Beyond the annotations (non-read-only, non-destructive, non-idempotent), the description discloses the important behavior: completed steps and outputs are preserved and only unfinished work re-executes. "quote=true prices the retry and changes nothing" also documents a dry-run mode the annotations alone would not reveal. It stops short of stating what a stale revision does or what the retry costs beyond the quote.

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?

Three tight sentences ordered action → preserved state → quote flag, with no filler. The opening "Pick a failed or canceled run up where it stopped" is slightly awkward phrasing but still front-loads the operation correctly.

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?

An output schema exists so return values need not be explained, and the description covers preconditions, preservation semantics, and the dry-run flag. The main residual gap is failure behavior on a mismatched revision, which matters for a non-idempotent retry but is not mentioned.

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 description coverage is 0%, so the description must carry the load, and it does for two of three parameters: revision is defined as the run's current revision obtained from get_workflow_run (implying a concurrency check), and quote is defined as a price-only no-op. Only run_id is left to the schema's name and uuid format.

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?

"Pick a failed or canceled run up where it stopped" gives a concrete verb and resource with a stated precondition (the run must be failed or canceled). It does not, however, distinguish itself from the closely named siblings resume_workflow_run and rewind_workflow_run, so an agent must infer the boundary.

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?

It specifies the applicable run state and points to get_workflow_run as the source of the required revision, which is useful pre-call guidance. It never states when NOT to use it or names resume_workflow_run / rewind_workflow_run as alternatives, leaving the most likely sibling confusion unresolved.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All Kuro toolsInspect
Try in Browser
One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.

Resources