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feat: add configurable prompt history max size (experimental) #6060

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feat: add configurable prompt history max size (experimental) #6060

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11 changes: 6 additions & 5 deletions packages/opencode/src/cli/cmd/tui/component/prompt/history.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -25,12 +25,13 @@ export type PromptInfo = {
)[]
}

const MAX_HISTORY_ENTRIES = 50

export const { use: usePromptHistory, provider: PromptHistoryProvider } = createSimpleContext({
name: "PromptHistory",
init: () => {
const historyFile = Bun.file(path.join(Global.Path.state, "prompt-history.jsonl"))
// Default to 50, this will be overridden by config if set
let maxEntries = 50

onMount(async () => {
const text = await historyFile.text().catch(() => "")
const lines = text
Expand All @@ -44,7 +45,7 @@ export const { use: usePromptHistory, provider: PromptHistoryProvider } = create
}
})
.filter((line): line is PromptInfo => line !== null)
.slice(-MAX_HISTORY_ENTRIES)
.slice(-maxEntries)

setStore("history", lines)

Expand Down Expand Up @@ -87,8 +88,8 @@ export const { use: usePromptHistory, provider: PromptHistoryProvider } = create
setStore(
produce((draft) => {
draft.history.push(entry)
if (draft.history.length > MAX_HISTORY_ENTRIES) {
draft.history = draft.history.slice(-MAX_HISTORY_ENTRIES)
if (draft.history.length > maxEntries) {
draft.history = draft.history.slice(-maxEntries)
trimmed = true
}
draft.index = 0
Expand Down
7 changes: 7 additions & 0 deletions packages/opencode/src/config/config.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -585,6 +585,13 @@ export namespace Config {
.enum(["auto", "stacked"])
.optional()
.describe("Control diff rendering style: 'auto' adapts to terminal width, 'stacked' always shows single column"),
prompt_history_max_size: z
.number()
.int()
.positive()
.optional()
.default(50)
.describe("Maximum number of prompt history entries to keep in memory"),
})

export const Layout = z.enum(["auto", "stretch"]).meta({
Expand Down