if (!isMultiToggleButton(button) || !isSelectedMultiButton(button)) {

return [];

}

return [button.callback_data!.slice(`${MULTI_SELECT_PREFIX}toggle|`.length)];

return [button.callback_data.slice(`${MULTI_SELECT_PREFIX}toggle|`.length)];

}),

);

const updateMultiSelectKeyboard = (

if (!isMultiToggleButton(button)) {

return button;

}

const buttonValue = button.callback_data!.slice(`${MULTI_SELECT_PREFIX}toggle|`.length);

const buttonValue = button.callback_data.slice(`${MULTI_SELECT_PREFIX}toggle|`.length);

const baseText = stripMultiSelectPrefix(button.text);

const selected =

action === "clear"

replyInstruction: string;

};

const MAX_CHILD_RESULT_PROMPT_CHARS = 4_000;

export type AgentInternalEvent = AgentTaskCompletionInternalEvent;

export { INTERNAL_RUNTIME_CONTEXT_BEGIN, INTERNAL_RUNTIME_CONTEXT_END };

return sanitized || fallback;

}

function truncateChildResultForPrompt(value: string): string {

if (value.length <= MAX_CHILD_RESULT_PROMPT_CHARS) {

return value;

}

return [

value.slice(0, MAX_CHILD_RESULT_PROMPT_CHARS).trimEnd(),

"",

`[child result truncated: ${value.length - MAX_CHILD_RESULT_PROMPT_CHARS} additional characters omitted]`,

].join("\n");

}

function formatChildResultDataBlock(value: string): string {

const safeValue = truncateChildResultForPrompt(value);

return (

wrapPromptDataBlock({

label: "Child result",

text: value,

text: safeValue,

}) || "Child result: (no output)"

);

}

);

});

it("bounds large child completion results before injecting internal context", () => {

const internal = formatAgentInternalEventsForPrompt([

{

type: "task_completion",

source: "subagent",

childSessionKey: "agent:main:subagent:test",

childSessionId: "sess_1",

announceType: "subagent task",

taskLabel: "Investigate issue",

status: "ok",

statusLabel: "completed successfully",

result: "x".repeat(6_000),

replyInstruction: "Reply to the user in your own words.",

},

]);

expect(internal).toContain("[child result truncated: 2000 additional characters omitted]");

expect(internal.length).toBeLessThan(5_000);

});

it("does not strip inline delimiter mentions that are not standalone marker lines", () => {

const input = `Note: ${INTERNAL_RUNTIME_CONTEXT_BEGIN} appears inline and should stay.`;

expect(sanitizeUserFacingText(input)).toBe(input);

childSessionKey: "agent:openclaw:subagent:child-123",

childSessionId: "child-123",

announceType: "subagent task",

taskLabel: "channel completion smoke",

status: "ok",

statusLabel: "completed successfully",

result: "Raw child result that should stay internal.",