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Add skipConversationRestore for before_branch hooks (#286)

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Nico Bailon 2025-12-22 18:26:08 -08:00 • committed by GitHub
parent 4492a3f304
commit 2953a9d8d4
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3 changed files with 14 additions and 2 deletions
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7
packages/coding-agent/docs/hooks.md
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@ -154,7 +154,12 @@ pi.on("session", async (event, ctx) => {
if (event.reason === "before_clear") {
return { cancel: true };
}
// No return needed if not cancelling
// For before_branch only: create branch but skip conversation restore
// (useful for checkpoint hooks that restore files separately)
if (event.reason === "before_branch") {
return { skipConversationRestore: true };
}
});
```

7
packages/coding-agent/src/core/agent-session.ts
View file

@ -1249,6 +1249,8 @@ export class AgentSession {
const selectedText = this._extractUserMessageText(selectedEntry.message.content);
let skipConversationRestore = false;
// Emit before_branch event (can be cancelled)
if (this._hookRunner?.hasHandlers("session")) {
const result = (await this._hookRunner.emit({
@ -1263,6 +1265,7 @@ export class AgentSession {
if (result?.cancel) {
return { selectedText, cancelled: true };
}
skipConversationRestore = result?.skipConversationRestore ?? false;
}
// Create branched session (returns null in --no-session mode)
@ -1293,7 +1296,9 @@ export class AgentSession {
// Emit session event to custom tools (with reason "branch")
await this._emitToolSessionEvent("branch", previousSessionFile);
this.agent.replaceMessages(loaded.messages);
if (!skipConversationRestore) {
this.agent.replaceMessages(loaded.messages);
}
return { selectedText, cancelled: false };
}

2
packages/coding-agent/src/core/hooks/types.ts
View file

@ -323,6 +323,8 @@ export interface ToolResultEventResult {
export interface SessionEventResult {
/** If true, cancel the pending action (switch, clear, or branch) */
cancel?: boolean;
/** If true (for before_branch only), skip restoring conversation to branch point while still creating the branched session file */
skipConversationRestore?: boolean;
}
// ============================================================================