Description
Assemble a reference-closed bundle of supplied fictional notices, receipts, letters, or map descriptions with shared entity substitution and explicit cross-reference keys.
A structured creative brief combines a supplied bank of fictional material with explicit sequencing, timing, or compatibility rules. IDs and tags make those constraints inspectable; they do not assess the artistic meaning or quality of a scene.
Assemble a reference-closed bundle of supplied fictional notices, receipts, letters, or map descriptions with shared entity substitution and explicit cross-reference keys.
When to use this tool
Use this generator to create reproducible worldbuilding document bundle cases from the supplied model or bank. Inspect the returned evidence before using cases in a test or exercise.
How to use the tool and how it works
- Supply entities, documents, count, wrapWidth in the field shapes below. Set seed when you need an explicit replay.
- Run the tool and correct any input error. For generated controls, distinguish a successful fixture containing an invalid case from failure to generate the fixture.
- Read documents, entityLedger, crossReferences. Use the conventions below and keep answer-bearing fields separate when presenting an exercise.
Expand declared entity tokens in supplied document templates, validate cross-references, and search randomized subsets for the requested document count. Accept a subset only when every reference stays inside it and the documents connect through references or shared entities; return rendered text, entity ledger and reference edges.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| entities | Entities | Required. Array of Object; no unknown keys.; minimum items 1; maximum items 16. |
| entities[].id | Literal identifier used to match records, independently of their display labels. | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64. |
| entities[].value | Value | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 1024. |
| documents | Documents | Required. Array of Object; no unknown keys.; minimum items 1; maximum items 16. |
| documents[].id | Literal identifier used to match records, independently of their display labels. | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64. |
| documents[].kind | Kind | Required. Text; one of "notice", "receipt", "letter", "map". |
| documents[].template | Template | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 1024. |
| documents[].entityIds | Entity Ids | Required. Array of Text; minimum UTF-16 length 1; maximum UTF-16 length 64.; minimum items 0; maximum items 16. |
| documents[].references | References | Required. Array of Text; minimum UTF-16 length 1; maximum UTF-16 length 64.; minimum items 0; maximum items 15. |
| count | Requested count; the mechanics explain whether one draw expands into several returned records. | Required. Safe integer; minimum 1; maximum 16. |
| wrapWidth | Wrap Width | Required. Safe integer; minimum 1; maximum 4096. |
| seed | Optional numeric seed; takes precedence over context randomness. Without either, use the fixed tool.io default seed. | Optional. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| documents | Documents | Required. Array of Object; no unknown keys.; minimum items 1; maximum items 16. |
| documents[].id | Literal identifier used to match records, independently of their display labels. | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64. |
| documents[].kind | Kind | Required. Text; one of "notice", "receipt", "letter", "map". |
| documents[].body | Body | Required. Object; no unknown keys. |
| documents[].body.text | Text | Required. Text; maximum UTF-16 length 65536. |
| documents[].body.lineCount | Line Count | Required. Safe integer; minimum 0; maximum 9007199254740991. |
| documents[].entityIds | Entity Ids | Required. Array of Text; minimum UTF-16 length 1; maximum UTF-16 length 64.; minimum items 0; maximum items 16. |
| documents[].references | References | Required. Array of Text; minimum UTF-16 length 1; maximum UTF-16 length 64.; minimum items 0; maximum items 15. |
| entityLedger | Entity Ledger | Required. Array of Object; no unknown keys.; minimum items 0; maximum items 16. |
| entityLedger[].id | Literal identifier used to match records, independently of their display labels. | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64. |
| entityLedger[].value | Value | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 1024. |
| crossReferences | Cross References | Required. Array of Object; no unknown keys.; minimum items 0; maximum items 240. |
| crossReferences[].from | From | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64. |
| crossReferences[].to | To | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64. |
| randomness | Replay metadata: source is seed or context; seed is the normalized 32-bit seed or null for a context source. | Required. Object; no unknown keys. |
| randomness.seed | Optional numeric replay seed; normalization and precedence are explained below. | Required. Safe integer. or Null. |
| randomness.source | Source | Required. Text; one of "context", "seed". |
An explicit safe-integer seed takes precedence over injected context randomness and is normalized to an unsigned 32-bit integer. With no seed and no context source, replay uses the fixed tool.io default seed. A context source must return finite values from zero inclusive to one exclusive; its advancing state must be retained separately. randomness records the source and normalized seed, or null for context. These generators are not cryptographic random sources.
{
"input": {
"entities": [
{
"id": "port",
"value": "Harbor"
}
],
"documents": [
{
"id": "n",
"kind": "notice",
"template": "Welcome to {entity:port}.",
"entityIds": [
"port"
],
"references": []
},
{
"id": "r",
"kind": "receipt",
"template": "Paid at {entity:port}.",
"entityIds": [
"port"
],
"references": [
"n"
]
}
],
"count": 2,
"wrapWidth": 80,
"seed": 42
},
"output": {
"documents": [
{
"id": "r",
"kind": "receipt",
"body": {
"text": "Paid at Harbor.",
"lineCount": 1
},
"entityIds": [
"port"
],
"references": [
"n"
]
},
{
"id": "n",
"kind": "notice",
"body": {
"text": "Welcome to Harbor.",
"lineCount": 1
},
"entityIds": [
"port"
],
"references": []
}
],
"entityLedger": [
{
"id": "port",
"value": "Harbor"
}
],
"crossReferences": [
{
"from": "r",
"to": "n"
}
],
"randomness": {
"seed": 42,
"source": "seed"
}
}
}Limitations and assumptions
- All text and entities are caller-supplied fiction. A bounded search may refuse infeasible or over-budget bundles. Reference closure and relatedness do not establish literary quality or historical accuracy.
- A replay requires the same complete input and implementation. Randomized construction does not guarantee uniform coverage of every feasible output; finite samples can repeat unless a distinct-selection rule is explicitly stated.
- The field tables state structural bounds; cross-field constraints and bounded search or output budgets also apply. Unknown keys are rejected where the object contract disallows them. Input errors are distinct from null fields and deliberate invalid controls in a successful output.
Alternative or Complementary methods
For a supplied example, inspect the returned construction or delegated check directly. To evaluate a consumer, also test cases chosen for its own boundaries; a generated finite corpus does not establish exhaustive coverage.
References
Similar or alternative tools
- Random Worldbuilding History Timeline Generator
Place supplied fictional events in an inclusive Gregorian date interval while reserving predecessor-gap slack through a verified DAG.
- Random Improv Dialogue Word Ban Challenge Generator
Select supplied forbidden tokens and compatible substitute objectives with a literal checklist and disclosed matching convention; speech monitoring remains outside the tool.