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Unify tool-result fallback notice with PI style

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This commit is contained in:
Tak Hoffman
2026-04-05 23:59:49 -05:00
committed by Peter Steinberger
parent a8fb094c5b
commit e55c82a7e7
1 changed files with 7 additions and 11 deletions
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18
src/agents/pi-embedded-runner/tool-result-truncation.ts
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@@ -3,6 +3,7 @@ import type { TextContent } from "@mariozechner/pi-ai";
import { SessionManager } from "@mariozechner/pi-coding-agent";
import { emitSessionTranscriptUpdate } from "../../sessions/transcript-events.js";
import { acquireSessionWriteLock } from "../session-write-lock.js";
import { formatContextLimitTruncationNotice } from "./tool-result-context-guard.js";
import { log } from "./logger.js";
import { rewriteTranscriptEntriesInSessionManager } from "./transcript-rewrite.js";
@@ -34,20 +35,15 @@ export const HARD_MAX_TOOL_RESULT_CHARS = DEFAULT_MAX_LIVE_TOOL_RESULT_CHARS;
*/
const MIN_KEEP_CHARS = 2_000;
/**
* Suffix appended to truncated tool results.
*/
const TRUNCATION_SUFFIX =
"\n\n⚠️ [Content truncated — original was too large for the model's context window. " +
"The content above is a partial view. If you need more, request specific sections or use " +
"offset/limit parameters to read smaller chunks.]";
const MIN_TRUNCATED_TEXT_CHARS = MIN_KEEP_CHARS + TRUNCATION_SUFFIX.length;
type ToolResultTruncationOptions = {
suffix?: string | ((truncatedChars: number) => string);
minKeepChars?: number;
};
const DEFAULT_SUFFIX = (truncatedChars: number) =>
formatContextLimitTruncationNotice(truncatedChars);
const MIN_TRUNCATED_TEXT_CHARS = MIN_KEEP_CHARS + DEFAULT_SUFFIX(1).length;
/**
* Marker inserted between head and tail when using head+tail truncation.
*/
@@ -86,7 +82,7 @@ export function truncateToolResultText(
const suffixFactory: (truncatedChars: number) => string =
typeof options.suffix === "function"
? options.suffix
: () => (options.suffix ?? TRUNCATION_SUFFIX);
: () => (options.suffix ?? DEFAULT_SUFFIX(1));
const minKeepChars = options.minKeepChars ?? MIN_KEEP_CHARS;
if (text.length <= maxChars) {
return text;
@@ -179,7 +175,7 @@ export function truncateToolResultMessage(
const suffixFactory: (truncatedChars: number) => string =
typeof options.suffix === "function"
? options.suffix
: () => (options.suffix ?? TRUNCATION_SUFFIX);
: () => (options.suffix ?? DEFAULT_SUFFIX(1));
const minKeepChars = options.minKeepChars ?? MIN_KEEP_CHARS;
const content = (msg as { content?: unknown }).content;
if (!Array.isArray(content)) {