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Improve navigateTree API

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Armin Ronacher 2026-01-16 19:52:54 +01:00 • committed by Mario Zechner
parent ffdc8d686b
commit 6b6707f30c
5 changed files with 68 additions and 10 deletions
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37
packages/coding-agent/src/core/agent-session.ts
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@ -1972,11 +1972,13 @@ export class AgentSession {
* @param targetId The entry ID to navigate to
* @param options.summarize Whether user wants to summarize abandoned branch
* @param options.customInstructions Custom instructions for summarizer
* @param options.replaceInstructions If true, customInstructions replaces the default prompt
* @param options.label Label to attach to the branch summary entry
* @returns Result with editorText (if user message) and cancelled status
*/
async navigateTree(
targetId: string,
options: { summarize?: boolean; customInstructions?: string } = {},
options: { summarize?: boolean; customInstructions?: string; replaceInstructions?: boolean; label?: string } = {},
): Promise<{ editorText?: string; cancelled: boolean; aborted?: boolean; summaryEntry?: BranchSummaryEntry }> {
const oldLeafId = this.sessionManager.getLeafId();
@ -2002,13 +2004,20 @@ export class AgentSession {
targetId,
);
// Prepare event data
// Prepare event data - mutable so extensions can override
let customInstructions = options.customInstructions;
let replaceInstructions = options.replaceInstructions;
let label = options.label;
const preparation: TreePreparation = {
targetId,
oldLeafId,
commonAncestorId,
entriesToSummarize,
userWantsSummary: options.summarize ?? false,
customInstructions,
replaceInstructions,
label,
};
// Set up abort controller for summarization
@ -2032,6 +2041,17 @@ export class AgentSession {
extensionSummary = result.summary;
fromExtension = true;
}
// Allow extensions to override instructions and label
if (result?.customInstructions !== undefined) {
customInstructions = result.customInstructions;
}
if (result?.replaceInstructions !== undefined) {
replaceInstructions = result.replaceInstructions;
}
if (result?.label !== undefined) {
label = result.label;
}
}
// Run default summarizer if needed
@ -2048,7 +2068,8 @@ export class AgentSession {
model,
apiKey,
signal: this._branchSummaryAbortController.signal,
customInstructions: options.customInstructions,
customInstructions,
replaceInstructions,
reserveTokens: branchSummarySettings.reserveTokens,
});
this._branchSummaryAbortController = undefined;
@ -2098,6 +2119,11 @@ export class AgentSession {
// Create summary at target position (can be null for root)
const summaryId = this.sessionManager.branchWithSummary(newLeafId, summaryText, summaryDetails, fromExtension);
summaryEntry = this.sessionManager.getEntry(summaryId) as BranchSummaryEntry;
// Attach label to the summary entry
if (label) {
this.sessionManager.appendLabelChange(summaryId, label);
}
} else if (newLeafId === null) {
// No summary, navigating to root - reset leaf
this.sessionManager.resetLeaf();
@ -2106,6 +2132,11 @@ export class AgentSession {
this.sessionManager.branch(newLeafId);
}
// Attach label to target entry when not summarizing (no summary entry to label)
if (label && !summaryText) {
this.sessionManager.appendLabelChange(targetId, label);
}
// Update agent state
const sessionContext = this.sessionManager.buildSessionContext();
this.agent.replaceMessages(sessionContext.messages);