Shorti

What to shoot this week

shorti_what_to_shoot

Read-onlyIdempotent

The formats to shoot this week: the week's picks, then the week's feed. The short-form formats breaking out now (TikTok, Reels, Shorts): this week's picks first — each with Shorti's line on the hit that broke out this week (this_week.why) and that hit's link — then the rest of the week's feed, in the order Shorti's home shows it. Each format says what its videos do, its strongest video (link, views, poster), how it has spread, its page and the check with it filled. Narrow by category (the creator's niche) and platform. Signed in, the person's own week leads (for_you: why each came to them). Use it when a creator or a brand asks what to make now; then shorti_format(format_id) for how to shoot one.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`lang`	No	The creator's language. 'en' answers in the English Shorti wrote: never translate its Korean yourself.	ko
`limit`	No	How many formats.
`category`	No	The creator's niche, when they have one: beauty, food, fashion, daily, comedy, dance, music, pets, fitness, travel, art, gaming, product, info, ai, household.
`platform`	No	Only formats with videos on this platform.

Output Schema

TableJSON Schema

Name	Required	Description
`hint`	No
`none`	No
`note`	No
`week`	No	the Monday (KST) the week's picks are fixed on
`as_of`	No	when the data was compiled
`for_you`	No	true when a signed-in reader's own week leads the list
`formats`	No
`refusal`	No	why nothing was answered, by name

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedSep 28, 2026

addedOutput schema / properties / for_you

Added value: +{
+  "anyOf": [
+    {
+      "type": "boolean"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "description": "true when a signed-in reader's own week leads the list"
+}

changedOutput schema / properties / formats / anyOf

Previous value: -[
-  {
-    "items": {
-      "additionalProperties": true,
-      "properties": {
-        "category": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null
-        },
-        "example": {
-          "anyOf": [
-            {
-              "additionalProperties": true,
-              "properties": {
-                "by": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "its creator's handle"
-                },
-                "platform": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null
-                },
-                "posted": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "the day it went up, YYYY-MM-DD"
-                },
-                "poster": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "a still of it to show"
-                },
-                "url": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "the post on its platform"
-                },
-                "video_id": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "Shorti's id of the video (shorti_video reads it)"
-                },
-                "views": {
-                  "anyOf": [
-                    {
-                      "type": "integer"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "the platform's view count, read at as_of"
-                },
-                "what": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "what happens in it (Shorti's reading)"
-                }
-              },
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "description": "its strongest video"
-        },
-        "format_id": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "description": "Shorti's id of the format (shorti_format, shorti_edit_recipe and shorti_check_link take it)"
-        },
-        "idea": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "description": "what the format's videos do (Shorti's reading)"
-        },
-        "links": {
-          "anyOf": [
-            {
-              "additionalProperties": true,
-              "properties": {
-                "check": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "Shorti's check with this format filled: the person uploads a take there"
-                },
-                "page": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "the format's page on Shorti"
-                }
-              },
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null
-        },
-        "ride": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "description": "how it has spread, counted from its videos' posting dates"
-        },
-        "same": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "description": "what its videos share: 'format' (the build) or 'sound' (the music)"
-        },
-        "sound": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "description": "the music's title, when the videos share it"
-        },
-        "this_week": {
-          "anyOf": [
-            {
-              "additionalProperties": true,
-              "properties": {
-                "hit": {
-                  "anyOf": [
-                    {
-                      "additionalProperties": true,
-                      "properties": {
-                        "by": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ],
-                          "default": null,
-                          "description": "its creator's handle"
-                        },
-                        "platform": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ],
-                          "default": null
-                        },
-                        "posted": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ],
-                          "default": null,
-                          "description": "the day it went up, YYYY-MM-DD"
-                        },
-                        "poster": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ],
-                          "default": null,
-                          "description": "a still of it to show"
-                        },
-                        "url": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ],
-                          "default": null,
-                          "description": "the post on its platform"
-                        },
-                        "video_id": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ],
-                          "default": null,
-                          "description": "Shorti's id of the video (shorti_video reads it)"
-                        },
-                        "views": {
-                          "anyOf": [
-                            {
-                              "type": "integer"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ],
-                          "default": null,
-                          "description": "the platform's view count, read at as_of"
-                        },
-                        "what": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ],
-                          "default": null,
-                          "description": "what happens in it (Shorti's reading)"
-                        }
-                      },
-                      "type": "object"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "that hit"
-                },
-                "why": {
-                  "anyOf": [
-                    {
-                      "type": "string"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ],
-                  "default": null,
-                  "description": "this week's line, written from the frames of the hit that broke out"
-                }
-              },
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "description": "present on this week's picks"
-        },
-        "title": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null
-        },
-        "videos": {
-          "anyOf": [
-            {
-              "type": "integer"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "description": "how many published videos the format holds"
-        }
-      },
-      "type": "object"
-    },
-    "type": "array"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "items": {
+      "additionalProperties": true,
+      "properties": {
+        "category": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null
+        },
+        "example": {
+          "anyOf": [
+            {
+              "additionalProperties": true,
+              "properties": {
+                "by": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "its creator's handle"
+                },
+                "platform": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null
+                },
+                "posted": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "the day it went up, YYYY-MM-DD"
+                },
+                "poster": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "a still of it to show"
+                },
+                "url": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "the post on its platform"
+                },
+                "video_id": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "Shorti's id of the video (shorti_video reads it)"
+                },
+                "views": {
+                  "anyOf": [
+                    {
+                      "type": "integer"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "the platform's view count, read at as_of"
+                },
+                "what": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "what happens in it (Shorti's reading)"
+                }
+              },
+              "type": "object"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "its strongest video"
+        },
+        "for_you": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "a signed-in reader's own reason this format came to them"
+        },
+        "format_id": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Shorti's id of the format (shorti_format, shorti_edit_recipe and shorti_check_link take it)"
+        },
+        "idea": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "what the format's videos do (Shorti's reading)"
+        },
+        "links": {
+          "anyOf": [
+            {
+              "additionalProperties": true,
+              "properties": {
+                "check": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "Shorti's check with this format filled: the person uploads a take there"
+                },
+                "page": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "the format's page on Shorti"
+                }
+              },
+              "type": "object"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null
+        },
+        "ride": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "how it has spread, counted from its videos' posting dates"
+        },
+        "same": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "what its videos share: 'format' (the build) or 'sound' (the music)"
+        },
+        "sound": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "the music's title, when the videos share it"
+        },
+        "this_week": {
+          "anyOf": [
+            {
+              "additionalProperties": true,
+              "properties": {
+                "hit": {
+                  "anyOf": [
+                    {
+                      "additionalProperties": true,
+                      "properties": {
+                        "by": {
+                          "anyOf": [
+                            {
+                              "type": "string"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "default": null,
+                          "description": "its creator's handle"
+                        },
+                        "platform": {
+                          "anyOf": [
+                            {
+                              "type": "string"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "default": null
+                        },
+                        "posted": {
+                          "anyOf": [
+                            {
+                              "type": "string"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "default": null,
+                          "description": "the day it went up, YYYY-MM-DD"
+                        },
+                        "poster": {
+                          "anyOf": [
+                            {
+                              "type": "string"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "default": null,
+                          "description": "a still of it to show"
+                        },
+                        "url": {
+                          "anyOf": [
+                            {
+                              "type": "string"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "default": null,
+                          "description": "the post on its platform"
+                        },
+                        "video_id": {
+                          "anyOf": [
+                            {
+                              "type": "string"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "default": null,
+                          "description": "Shorti's id of the video (shorti_video reads it)"
+                        },
+                        "views": {
+                          "anyOf": [
+                            {
+                              "type": "integer"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "default": null,
+                          "description": "the platform's view count, read at as_of"
+                        },
+                        "what": {
+                          "anyOf": [
+                            {
+                              "type": "string"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "default": null,
+                          "description": "what happens in it (Shorti's reading)"
+                        }
+                      },
+                      "type": "object"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "that hit"
+                },
+                "why": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "description": "this week's line, written from the frames of the hit that broke out"
+                }
+              },
+              "type": "object"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "present on this week's picks"
+        },
+        "title": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null
+        },
+        "videos": {
+          "anyOf": [
+            {
+              "type": "integer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "how many published videos the format holds"
+        }
+      },
+      "type": "object"
+    },
+    "type": "array"
+  },
+  {
+    "type": "null"
+  }
+]

First observedSep 28, 2026

TDQS

A3.8/5.0

Behavior4/5

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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world). The description adds real behavior beyond that: signed-in requests surface the person's own week first via `for_you`, and the feed is ordered as Shorti's home shows it. That ordering/personalization context is genuinely useful and not in 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.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The purpose is front-loaded, but the description is a dense run-on with repeated 'this week' phrasing, nested parentheticals, and backtick-heavy detail that could be trimmed. It is informative but not tight.

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 spelled out, yet the description still sketches the shape (format behavior, strongest video, spread, page/check). With four optional params at full schema coverage and clear filter/personalization context, an agent has what it needs to call this 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 description coverage is 100%, so the schema already documents lang, limit, category, and platform. The description restates category as 'the creator's niche' and platform as a narrowing filter, adding only marginal semantics. Baseline 3 is appropriate when the schema does the heavy lifting.

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?

The description states a specific resource (the week's short-form formats breaking out now) and scope (picks first, then the feed), and it explicitly names the sibling shorti_format for the follow-up step. It is clear what the tool returns, though the run-on prose obscures the core verb somewhat.

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?

It gives an explicit trigger ('Use it when a creator or a brand asks what to make now') and routes to the alternative ('then shorti_format(format_id) for how to shoot one'), which is strong sibling differentiation. It lacks any when-not guidance, so it stops short of a 5.

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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