---
url: 'https://adk.nht.io/api/@nhtio/adk/batteries/interfaces/ThoughtAttrs.md'
description: Attribute bag rendered onto a thought block.
---

# Interface: ThoughtAttrs

Defined in: [src/batteries/llm/chat\_common/types.ts:207](https://github.com/NHTIO/ADK/blob/v1.20261003.0/src/src/batteries/llm/chat_common/types.ts#L207)

Attribute bag rendered onto a thought block.

## Properties

| Property                                                         | Type                                                             | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | Defined in                                                                                                                                    |
| ---------------------------------------------------------------- | ---------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------- |
|  `createdAt?`                     | `string`                                                         | ISO-8601 creation timestamp of the thought.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | [src/batteries/llm/chat\_common/types.ts:223](https://github.com/NHTIO/ADK/blob/v1.20261003.0/src/src/batteries/llm/chat_common/types.ts#L223) |
|  `from`                                | `string`                                                         | Identity of the agent the thought originated from.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | [src/batteries/llm/chat\_common/types.ts:221](https://github.com/NHTIO/ADK/blob/v1.20261003.0/src/src/batteries/llm/chat_common/types.ts#L221) |
|  `kind`                                | `"self-reasoning"` | `"peer-reasoning"` | `"opaque-reasoning"` | Whether the thought is the model's own, a peer's, or opaque vendor reasoning.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | [src/batteries/llm/chat\_common/types.ts:219](https://github.com/NHTIO/ADK/blob/v1.20261003.0/src/src/batteries/llm/chat_common/types.ts#L219) |
|  `nonce`                              | `string`                                                         | Nonce binding the block's open and close markers together — it becomes part of the tag NAME (`<..._<nonce>>`) so a model mirroring the block cannot forge a sibling's closer. FOOTGUN: this nonce MUST be unguessable AND non-path-shaped. It is typically the source record's id; a path-shaped id (e.g. `chunk-assembly-events-9`) is copied by small models as a CITATION (`/assembly/events-9`), which a doc-path validator then rejects → re-cite loop. Mint record ids with `crypto.randomUUID()`; carry page/human provenance in `source=` (rendered before `nonce=`), never in the id. | [src/batteries/llm/chat\_common/types.ts:217](https://github.com/NHTIO/ADK/blob/v1.20261003.0/src/src/batteries/llm/chat_common/types.ts#L217) |
|  `replayCompatibility?` | `string`                                                         | Replay-compatibility label gating whether the thought is surfaced on replay.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | [src/batteries/llm/chat\_common/types.ts:225](https://github.com/NHTIO/ADK/blob/v1.20261003.0/src/src/batteries/llm/chat_common/types.ts#L225) |