Interface: DefineFactOptions

Defined in: src/lib/injection-engine/factories/defineFact.ts:34

Properties

activeWhen?

readonly optional activeWhen?: (ctx) => boolean

Defined in: src/lib/injection-engine/factories/defineFact.ts:53

Trigger control. Defaults to always-on. For conditional facts (e.g., "only show user profile after iteration 3"), pass a predicate via activeWhen.

Parameters

ctx

InjectionContext

Returns

boolean

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cache?

readonly optional cache?: CachePolicy

Defined in: src/lib/injection-engine/factories/defineFact.ts:61

Cache policy for this fact injection. Defaults to 'always' — facts are typically static data the LLM should always have in mind. Override with 'never' for facts containing volatile content (e.g., a Current time: fact); use { until } for time-bounded facts.

---

data

readonly data: string

Defined in: src/lib/injection-engine/factories/defineFact.ts:38

The fact (data string) to inject.

---

description?

readonly optional description?: string

Defined in: src/lib/injection-engine/factories/defineFact.ts:36

---

id

readonly id: string

Defined in: src/lib/injection-engine/factories/defineFact.ts:35

---

role?

readonly optional role?: ContextRole

Defined in: src/lib/injection-engine/factories/defineFact.ts:47

When slot: 'messages', the role to use. Default 'system'.

---

slot?

readonly optional slot?: "system-prompt" | "messages"

Defined in: src/lib/injection-engine/factories/defineFact.ts:45

Which slot to land in. Default 'system-prompt' (most common — facts the model should always have in mind). 'messages' for facts that should appear inline with the conversation history (use sparingly — increases token cost).