Rhylthyme

Publish a live timeline

visualize_schedule

Destructive

Publish a program as a live, shareable timeline (a public share link) and return its URL, with an ASCII Gantt and an itinerary. For a schedule the user wants to follow or share ('plan this so it all finishes at 6', 'when do I start each thing'). Validates first and refuses an invalid program with fix hints.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`program`	Yes	Program JSON; shape under validate_program.
`allowInvalid`	No	Publish despite validation errors. Only when the user explicitly wants an imperfect draft shared.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`url`	Yes
`shareId`	Yes
`imageUrl`	Yes
`warnings`	Yes
`makespanSeconds`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedSep 26, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

changedOutput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Changed18 schema fields changedSep 20, 2026

changedInput schema / properties / allowInvalid / description

Previous value: -"Publish even if validation reports errors. Only use when the user explicitly wants an imperfect draft shared; the live page may show wrong timings."New value: +"Publish despite validation errors. Only when the user explicitly wants an imperfect draft shared."

changedInput schema / properties / program / description

Previous value: -"Rhylthyme program JSON. Read rhylthyme://guide/authoring for the rules."New value: +"Program JSON; shape under validate_program."

removedInput schema / properties / program / properties / actors

Removed value: -{
-  "description": "How many people are available to work steps concurrently.",
-  "maximum": 9007199254740991,
-  "minimum": -9007199254740991,
-  "type": "integer"
-}

removedInput schema / properties / program / properties / description
```
Removed value: -{
-  "type": "string"
-}
```

removedInput schema / properties / program / properties / environment

Removed value: -{
-  "description": "Optional environmentId whose resourceConstraints apply.",
-  "type": "string"
-}

removedInput schema / properties / program / properties / environmentType

Removed value: -{
-  "description": "kitchen | laboratory | event | gym | bakery | manufacturing | general …",
-  "type": "string"
-}

removedInput schema / properties / program / properties / metadata

Removed value: -{
-  "additionalProperties": {},
-  "properties": {
-    "attribution": {
-      "type": "string"
-    },
-    "ingredients": {
-      "items": {
-        "additionalProperties": {},
-        "properties": {
-          "measure": {
-            "type": "string"
-          },
-          "name": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "name"
-        ],
-        "type": "object"
-      },
-      "type": "array"
-    },
-    "serves": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "number"
-        }
-      ]
-    },
-    "sourceUrl": {
-      "type": "string"
-    },
-    "thumbnail": {
-      "type": "string"
-    }
-  },
-  "type": "object"
-}

removedInput schema / properties / program / properties / name

Removed value: -{
-  "description": "Human-readable name",
-  "type": "string"
-}

removedInput schema / properties / program / properties / programId

Removed value: -{
-  "description": "Kebab-case identifier",
-  "type": "string"
-}

removedInput schema / properties / program / properties / resourceConstraints

Removed value: -{
-  "items": {
-    "additionalProperties": {},
-    "properties": {
-      "description": {
-        "type": "string"
-      },
-      "maxConcurrent": {
-        "maximum": 9007199254740991,
-        "minimum": 1,
-        "type": "integer"
-      },
-      "task": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "task",
-      "maxConcurrent"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}

removedInput schema / properties / program / properties / schemaVersion
```
Removed value: -{
-  "default": "0.1.0",
-  "type": "string"
-}
```

removedInput schema / properties / program / properties / tracks

Removed value: -{
-  "items": {
-    "additionalProperties": {},
-    "properties": {
-      "description": {
-        "type": "string"
-      },
-      "name": {
-        "type": "string"
-      },
-      "replicates": {
-        "additionalProperties": {},
-        "properties": {
-          "count": {
-            "maximum": 9007199254740991,
-            "minimum": 1,
-            "type": "integer"
-          },
-          "delay": {
-            "anyOf": [
-              {
-                "type": "number"
-              },
-              {
-                "type": "string"
-              }
-            ],
-            "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
-          },
-          "mode": {
-            "enum": [
-              "parallel",
-              "stagger",
-              "serial"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "count"
-        ],
-        "type": "object"
-      },
-      "steps": {
-        "items": {
-          "additionalProperties": {},
-          "properties": {
-            "canAbort": {
-              "type": "boolean"
-            },
-            "choice": {
-              "additionalProperties": {},
-              "description": "Branch point: downstream steps with a matching choiceId only run for that option.",
-              "properties": {
-                "options": {
-                  "items": {
-                    "additionalProperties": {},
-                    "properties": {
-                      "choiceId": {
-                        "type": "string"
-                      },
-                      "label": {
-                        "type": "string"
-                      }
-                    },
-                    "required": [
-                      "choiceId"
-                    ],
-                    "type": "object"
-                  },
-                  "minItems": 2,
-                  "type": "array"
-                },
-                "prompt": {
-                  "type": "string"
-                }
-              },
-              "required": [
-                "options"
-              ],
-              "type": "object"
-            },
-            "description": {
-              "type": "string"
-            },
-            "duration": {
-              "additionalProperties": {},
-              "properties": {
-                "defaultSeconds": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "string"
-                    }
-                  ],
-                  "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
-                },
-                "maxSeconds": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "string"
-                    }
-                  ],
-                  "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
-                },
-                "minSeconds": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "string"
-                    }
-                  ],
-                  "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
-                },
-                "seconds": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "string"
-                    }
-                  ],
-                  "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
-                },
-                "triggerName": {
-                  "type": "string"
-                },
-                "type": {
-                  "description": "fixed: exact seconds. variable: min/max with a default, user can end early. indefinite: runs until the user ends it (give defaultSeconds for planning).",
-                  "enum": [
-                    "fixed",
-                    "variable",
-                    "indefinite"
-                  ],
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type"
-              ],
-              "type": "object"
-            },
-            "name": {
-              "type": "string"
-            },
-            "replicates": {
-              "additionalProperties": {},
-              "properties": {
-                "count": {
-                  "maximum": 9007199254740991,
-                  "minimum": 1,
-                  "type": "integer"
-                },
-                "delay": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "string"
-                    }
-                  ],
-                  "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
-                },
-                "mode": {
-                  "enum": [
-                    "parallel",
-                    "stagger",
-                    "serial"
-                  ],
-                  "type": "string"
-                }
-              },
-              "required": [
-                "count"
-              ],
-              "type": "object"
-            },
-            "startTrigger": {
-              "additionalProperties": {},
-              "properties": {
-                "bufferSeconds": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "string"
-                    }
-                  ],
-                  "description": "afterStepWithBuffer: gap after the referenced step ends."
-                },
-                "choiceId": {
-                  "description": "Only run this step if the user picked this option on the referenced step's choice.",
-                  "type": "string"
-                },
-                "event": {
-                  "description": "afterStep anchor: the referenced step's end (default) or start.",
-                  "enum": [
-                    "start",
-                    "end"
-                  ],
-                  "type": "string"
-                },
-                "logic": {
-                  "description": "Compound trigger: wait for all / any of `triggers`.",
-                  "enum": [
-                    "all",
-                    "any"
-                  ],
-                  "type": "string"
-                },
-                "offsetSeconds": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "string"
-                    }
-                  ],
-                  "description": "Delay after the anchor. Negative values ('start 20m before X ends') require the referenced step to be indefinite."
-                },
-                "stepId": {
-                  "description": "Referenced step (afterStep / afterStepWithBuffer / onAbort).",
-                  "type": "string"
-                },
-                "triggerName": {
-                  "type": "string"
-                },
-                "triggers": {
-                  "items": {
-                    "additionalProperties": {},
-                    "properties": {
-                      "bufferSeconds": {
-                        "anyOf": [
-                          {
-                            "type": "number"
-                          },
-                          {
-                            "type": "string"
-                          }
-                        ],
-                        "description": "afterStepWithBuffer: gap after the referenced step ends."
-                      },
-                      "choiceId": {
-                        "description": "Only run this step if the user picked this option on the referenced step's choice.",
-                        "type": "string"
-                      },
-                      "event": {
-                        "description": "afterStep anchor: the referenced step's end (default) or start.",
-                        "enum": [
-                          "start",
-                          "end"
-                        ],
-                        "type": "string"
-                      },
-                      "offsetSeconds": {
-                        "anyOf": [
-                          {
-                            "type": "number"
-                          },
-                          {
-                            "type": "string"
-                          }
-                        ],
-                        "description": "Delay after the anchor. Negative values ('start 20m before X ends') require the referenced step to be indefinite."
-                      },
-                      "stepId": {
-                        "description": "Referenced step (afterStep / afterStepWithBuffer / onAbort).",
-                        "type": "string"
-                      },
-                      "triggerName": {
-                        "type": "string"
-                      },
-                      "type": {
-                        "description": "programStart: at t=0. programStartOffset: offsetSeconds after t=0. afterStep: when stepId ends (or starts, with event='start') plus offsetSeconds. afterStepWithBuffer: after stepId ends plus bufferSeconds. manual: user taps to start. onAbort: only if stepId is aborted.",
-                        "enum": [
-                          "programStart",
-                          "programStartOffset",
-                          "afterStep",
-                          "afterStepWithBuffer",
-                          "manual",
-                          "onAbort"
-                        ],
-                        "type": "string"
-                      }
-                    },
-                    "type": "object"
-                  },
-                  "type": "array"
-                },
-                "type": {
-                  "description": "As for a single trigger; \"compound\" is an optional label for a logic/triggers trigger.",
-                  "enum": [
-                    "programStart",
-                    "programStartOffset",
-                    "afterStep",
-                    "afterStepWithBuffer",
-                    "manual",
-                    "onAbort",
-                    "compound"
-                  ],
-                  "type": "string"
-                }
-              },
-              "type": "object"
-            },
-            "stepId": {
-              "description": "Unique across the WHOLE program.",
-              "type": "string"
-            },
-            "task": {
-              "description": "Resource this step occupies; must match a resourceConstraints[].task.",
-              "type": "string"
-            },
-            "tasks": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            }
-          },
-          "required": [
-            "stepId",
-            "name",
-            "duration",
-            "startTrigger"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "trackId": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "trackId",
-      "name",
-      "steps"
-    ],
-    "type": "object"
-  },
-  "minItems": 1,
-  "type": "array"
-}

removedInput schema / properties / program / required

Removed value: -[
-  "programId",
-  "name",
-  "tracks"
-]

removedOutput schema / properties / warnings / items / properties / code
```
Removed value: -{
-  "type": "string"
-}
```

removedOutput schema / properties / warnings / items / properties / fix

Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}

removedOutput schema / properties / warnings / items / properties / message
```
Removed value: -{
-  "type": "string"
-}
```

removedOutput schema / properties / warnings / items / properties / where

Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}

removedOutput schema / properties / warnings / items / required

Removed value: -[
-  "code",
-  "message",
-  "where",
-  "fix"
-]

Changed2 schema fields changedSep 18, 2026

changed

Input schema / properties / program / properties / tracks / items / properties / steps / items / properties / startTrigger / properties / type / description

Previous value: -"programStart: at t=0. programStartOffset: offsetSeconds after t=0. afterStep: when stepId ends (or starts, with event='start') plus offsetSeconds. afterStepWithBuffer: after stepId ends plus bufferSeconds. manual: user taps to start. onAbort: only if stepId is aborted."New value: +"As for a single trigger; \"compound\" is an optional label for a logic/triggers trigger."

changed

Input schema / properties / program / properties / tracks / items / properties / steps / items / properties / startTrigger / properties / type / enum

Previous value: -[
-  "programStart",
-  "programStartOffset",
-  "afterStep",
-  "afterStepWithBuffer",
-  "manual",
-  "onAbort"
-]New value: +[
+  "programStart",
+  "programStartOffset",
+  "afterStep",
+  "afterStepWithBuffer",
+  "manual",
+  "onAbort",
+  "compound"
+]

First observedSep 17, 2026

TDQS

A4.3/5.0

Behavior4/5

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

Adds useful behavior beyond the annotations: it validates before publishing, refuses invalid programs with fix hints, and creates a public share link. The annotations already signal destructive/open-world behavior, so the description does not need to restate those; it could still mention the allowInvalid exception or permanence of publication, but the key behavioral traits are disclosed.

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?

Three short sentences front-load the primary action and output, then give usage intent and validation behavior. Every sentence earns its place without repeating the schema.

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 two-parameter tool with an output schema and annotations, the description is complete: it covers what the tool does, what it returns, when to use it, and how it handles invalid input. No critical selection or invocation detail is missing.

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%, so the schema already describes program and allowInvalid. The description adds context about validation and publishing intent but not new parameter-level meaning; baseline 3 is appropriate.

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?

States a specific verb and resource: 'Publish a program as a live, shareable timeline' and tells exactly what is returned (URL, ASCII Gantt, itinerary). This distinguishes it from sibling tools like preview_timeline, validate_program, and analyze_schedule, since publishing/sharing is a distinct action.

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?

Provides a clear target scenario: 'For a schedule the user wants to follow or share', with concrete user phrasings ('plan this so it all finishes at 6'). It does not explicitly name alternatives or state when not to use the tool, so it stops short of full routing 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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