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feat: add S hotkey to apply agent prompt as system override mid-session #812

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feat: add S hotkey to apply agent prompt as system override mid-session #812

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13 changes: 12 additions & 1 deletion packages/coding-agent/src/modes/components/agent-dashboard.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -353,6 +353,7 @@ export class AgentDashboard extends Container {

onClose?: () => void;
onRequestRender?: () => void;
onApplySystemPrompt?: (agentName: string, prompt: string) => void;

private constructor(
private readonly cwd: string,
Expand Down Expand Up @@ -552,6 +553,12 @@ export class AgentDashboard extends Container {
this.#buildLayout();
}

#applySelectedAgentPrompt(): void {
const selected = this.#selectedAgent();
if (!selected?.systemPrompt) return;
this.onApplySystemPrompt?.(selected.name, selected.systemPrompt);
}

#beginCreateFlow(): void {
if (this.#createGenerating) return;
this.#createError = null;
Expand Down Expand Up @@ -975,7 +982,7 @@ export class AgentDashboard extends Container {
new Text(
theme.fg(
"dim",
" ↑/↓: navigate Space: toggle Enter: model override N: new agent Tab: source Ctrl+R: reload Esc: close",
" ↑/↓: navigate Space: toggle Enter: model override S: apply prompt N: new agent Tab: source Ctrl+R: reload Esc: close",
),
0,
0,
Expand Down Expand Up @@ -1090,6 +1097,10 @@ export class AgentDashboard extends Container {
this.#beginModelEdit();
return;
}
if (data.toLowerCase() === "s") {
this.#applySelectedAgentPrompt();
return;
}
if (data.toLowerCase() === "n") {
this.#beginCreateFlow();
return;
Expand Down
6 changes: 6 additions & 0 deletions packages/coding-agent/src/modes/controllers/selector-controller.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -206,6 +206,12 @@ export class SelectorController {
dashboard.onRequestRender = () => {
this.ctx.ui.requestRender();
};
dashboard.onApplySystemPrompt = (agentName, prompt) => {
this.ctx.session.applyAgentSystemPrompt(agentName, prompt);
this.ctx.showStatus(`Applied ${agentName} agent prompt`);
done();
this.ctx.ui.requestRender();
};
return { component: dashboard, focus: dashboard };
});
}
Expand Down
15 changes: 15 additions & 0 deletions packages/coding-agent/src/session/agent-session.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3840,6 +3840,21 @@ export class AgentSession {
this.settings.set("interruptMode", mode);
}

/**
* Apply an agent's system prompt to the current session.
* Updates the agent's system prompt and appends a custom message entry.
*/
applyAgentSystemPrompt(agentName: string, prompt: string): void {
this.agent.setSystemPrompt(prompt);
this.sessionManager.appendCustomMessageEntry(
"agent-prompt-override",
`Agent prompt override: ${agentName}`,
false,
{ agentName },
"agent",
);
}

// =========================================================================
// Compaction
// =========================================================================
Expand Down