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768848ab6f
## Summary
Adds experimental `additionalContext` support to `turn/start` and
`turn/steer` so clients can provide ephemeral external context, such as
browser or automation state, without turning that plumbing into a
visible user prompt or triggering user-prompt lifecycle behavior.
## API Shape
The parameter shape is:
```ts
additionalContext?: Record<string, {
value: string
kind: "untrusted" | "application"
}> | null
```
Example:
```json
{
"additionalContext": {
"browser_info": {
"value": "Active tab is CI failures.",
"kind": "untrusted"
},
"automation_info": {
"value": "CI rerun is in progress.",
"kind": "application"
}
}
}
```
The keys are opaque and caller-defined.
## Context Injection
When provided, accepted entries are inserted into model context as
hidden contextual message items, not as visible thread user-message
items.
`kind: "untrusted"` entries are inserted with role `user`:
```text
<external_${key}>${value}</external_${key}>
```
`kind: "application"` entries are inserted with role `developer`:
```text
<${key}>${value}</${key}>
```
Values are not escaped. Each value is truncated to 1k approximate tokens
before wrapping.
For `turn/start`, accepted additional context is inserted before normal
user input. For `turn/steer`, additional context is merged only when the
steer includes non-empty user input; context-only steers still reject as
empty input.
## Dedupe Strategy
`AdditionalContextStore` lives on session state and stores the latest
complete additional-context map.
Each `turn/start` or non-empty `turn/steer` treats its
`additionalContext` as the current complete set of values. Entries are
injected only when the key is new or the exact entry for that key
changed, including `value` or `kind`. After merging, the store is
replaced with the provided map, so omitted keys are removed from the
retained set and can be injected again later if reintroduced.
Omitting `additionalContext`, passing `null`, or passing an empty object
resets the store to empty and injects nothing.
## What Changed
- Threads experimental v2 `additionalContext` through app-server into
core turn start and steer handling.
- Adds separate contextual fragment types for untrusted user-role
context and application developer-role context.
- Uses pending response input items so additional context can be
combined with normal user input without treating it as prompt text.
- Adds integration coverage for start/steer flow, role routing,
dedupe/reset behavior, deletion/re-add behavior, hook-blocked input
behavior, empty context-only steer rejection, external-fragment marker
matching, and truncation.
240 lines
5.2 KiB
JSON
Generated
240 lines
5.2 KiB
JSON
Generated
{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"definitions": {
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"AdditionalContextEntry": {
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"properties": {
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"kind": {
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"$ref": "#/definitions/AdditionalContextKind"
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},
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"value": {
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"type": "string"
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}
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},
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"required": [
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"kind",
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"value"
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],
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"type": "object"
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},
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"AdditionalContextKind": {
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"enum": [
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"untrusted",
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"application"
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],
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"type": "string"
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},
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"ByteRange": {
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"properties": {
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"end": {
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"format": "uint",
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"minimum": 0.0,
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"type": "integer"
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},
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"start": {
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"format": "uint",
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"minimum": 0.0,
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"type": "integer"
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}
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},
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"required": [
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"end",
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"start"
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],
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"type": "object"
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},
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"ImageDetail": {
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"enum": [
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"high",
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"original"
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],
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"type": "string"
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},
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"TextElement": {
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"properties": {
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"byteRange": {
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"allOf": [
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{
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"$ref": "#/definitions/ByteRange"
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}
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],
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"description": "Byte range in the parent `text` buffer that this element occupies."
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},
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"placeholder": {
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"description": "Optional human-readable placeholder for the element, displayed in the UI.",
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"type": [
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"string",
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"null"
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]
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}
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},
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"required": [
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"byteRange"
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],
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"type": "object"
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},
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"UserInput": {
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"oneOf": [
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{
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"properties": {
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"text": {
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"type": "string"
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},
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"text_elements": {
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"default": [],
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"description": "UI-defined spans within `text` used to render or persist special elements.",
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"items": {
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"$ref": "#/definitions/TextElement"
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},
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"type": "array"
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},
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"type": {
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"enum": [
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"text"
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],
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"title": "TextUserInputType",
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"type": "string"
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}
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},
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"required": [
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"text",
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"type"
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],
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"title": "TextUserInput",
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"type": "object"
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},
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{
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"properties": {
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"detail": {
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"anyOf": [
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{
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"$ref": "#/definitions/ImageDetail"
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},
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{
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"type": "null"
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}
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],
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"default": null
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},
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"type": {
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"enum": [
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"image"
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],
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"title": "ImageUserInputType",
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"type": "string"
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},
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"url": {
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"type": "string"
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}
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},
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"required": [
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"type",
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"url"
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],
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"title": "ImageUserInput",
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"type": "object"
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},
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{
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"properties": {
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"detail": {
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"anyOf": [
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{
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"$ref": "#/definitions/ImageDetail"
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},
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{
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"type": "null"
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}
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],
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"default": null
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},
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"path": {
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"type": "string"
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},
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"type": {
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"enum": [
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"localImage"
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],
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"title": "LocalImageUserInputType",
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"type": "string"
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}
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},
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"required": [
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"path",
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"type"
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],
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"title": "LocalImageUserInput",
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"type": "object"
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},
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{
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"properties": {
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"name": {
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"type": "string"
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},
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"path": {
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"type": "string"
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},
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"type": {
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"enum": [
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"skill"
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],
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"title": "SkillUserInputType",
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"type": "string"
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}
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},
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"required": [
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"name",
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"path",
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"type"
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],
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"title": "SkillUserInput",
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"type": "object"
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},
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{
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"properties": {
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"name": {
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"type": "string"
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},
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"path": {
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"type": "string"
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},
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"type": {
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"enum": [
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"mention"
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],
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"title": "MentionUserInputType",
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"type": "string"
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}
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},
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"required": [
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"name",
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"path",
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"type"
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],
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"title": "MentionUserInput",
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"type": "object"
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}
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]
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}
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},
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"properties": {
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"expectedTurnId": {
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"description": "Required active turn id precondition. The request fails when it does not match the currently active turn.",
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"type": "string"
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},
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"input": {
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"items": {
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"$ref": "#/definitions/UserInput"
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},
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"type": "array"
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},
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"threadId": {
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"type": "string"
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}
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},
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"required": [
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"expectedTurnId",
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"input",
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"threadId"
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],
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"title": "TurnSteerParams",
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"type": "object"
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} |