Reproduction tutorial · September 10, 2026

    Research-agent throughput under a blinded crossover

    These tutorials test the mechanism behind each paper at a practical scale. They do not reproduce frontier-scale headline results unless explicitly stated.

    Source of this tutorial

    This tutorial tests the mechanism behind reviewed development 02 in the immutable briefing of September 10, 2026.

    Scope and limits

    Reproduction level
    partial mechanism reproduction at team scale
    Claim under test
    whether agent assistance raises accepted-result throughput per human workday, rather than raising started or running work.
    Excluded claim
    this tutorial does not reproduce the reported 3.1 agent-workdays per human workday figure and does not generalise to frontier research operations.
    Reader, effort, and cost
    a team of at least four practitioners; 3 to 4 weeks of ordinary work with measurement overhead; model spend depends on your own workload.
    Prerequisites
    an existing backlog of comparable tasks, a reviewer who does not know which arm produced a result, and a pre-registered acceptance rubric.

    Canonical resources

    Project plan

    Research-agent throughput under a blinded crossover — step and effort summary
    StepStageEffort
    01Define the denominator before starting1 day
    02Blinded crossover assignment1 day
    03Instrument interventions2 days
    04Run the crossover2 to 3 weeks
    05Analysis1 day
    1. 01Define the denominator before starting(1 day)

      Write down what one human workday means, what counts as an accepted result, and who accepts it. Freeze the rubric. Checkpoint: two reviewers score five past tasks with the rubric and agree.

    2. 02Blinded crossover assignment(1 day)

      Split practitioners into two groups and alternate assisted and unassisted weeks so every person serves in both arms. Strip arm labels from submitted work before review.

    3. 03Instrument interventions(2 days)

      Log every human intervention with a timestamp, a reason code, and the elapsed task time when it occurred. Record task length bands, including the 4 to 8 hour band.

    4. 04Run the crossover(2 to 3 weeks)

      Work normally. Record accepted results, rejected results, defects found after acceptance, interventions, wall time, and compute or model cost per task.

    5. 05Analysis(1 day)

      Report accepted results per human workday, post-acceptance defect rate, interventions per task hour, and cost per accepted result, each with paired within-person differences and confidence intervals. Falsification: assisted arms raise started work and runtime without raising accepted results, or defects rise enough to erase the throughput gain.

    Controls, failure modes, and safety

    Controlled variables

    task pool, acceptance rubric, reviewer blinding, task length bands, tooling, and per-person crossover order.

    Failure modes

    counting runtime instead of accepted output, unblinded review, cherry-picked task selection into the assisted arm, and ignoring post-acceptance defects.

    Safety

    use only work your organisation already owns. Do not place confidential material into third-party tools without your own approval process.

    Affected topics

    Back to the September 10, 2026 briefing