agentfootprint/dist/esm/core/agent/assistantReplay.js

The explainable agent framework — backtrack a wrong answer to the exact context that caused it (evidence, not guesses). Built on footprintjs.

/**
 * The adapter owns the evidence; core only carries it alongside the text it
 * actually delivered. Presence is checked without a tracked read, so a run on
 * a provider with no replay evidence gains no phantom context source. Thinking
 * joins this carrier only when the provider supplied replay evidence; legacy
 * message writers retain their existing thinking behaviour otherwise.
 */
export function assistantReplayFields(state) {
    if (!('llmLatestReplay' in state))
        return {};
    // Footprint's grouped mapper replaces top-level arrays, but deep-merges
    // object members. The tuple carries one indivisible provider proof, so an
    // earlier layout or binding can never be merged into the next response.
    const replay = state.llmLatestReplay?.[0];
    if (replay === undefined)
        return {};
    const blocks = state.thinkingBlocks;
    return {
        replay,
        ...(blocks !== undefined && blocks.length > 0 && { thinkingBlocks: [...blocks] }),
    };
}
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