{
  "category": "learning",
  "slug": "learning-stoichiometry-worked-examples",
  "title": "When Should AI Fade Support in Stoichiometry Practice: The One-Pass Revision Reached 8/10",
  "task": "fade support across stoichiometry examples",
  "excerpt": "The completed LFT-009 synthetic field test reached 8/10 after one failure-only correction: 4 of five static checks passed for Chemistry scaffolding, while 1 check remained unresolved.",
  "tool": "Codex multi-agent session",
  "model": "Exact underlying model identifier not disclosed by the Codex session",
  "publishedAt": "2026-07-18T15:00:00+08:00",
  "durationMinutes": 0,
  "testMode": "Synthetic benchmark",
  "inputDisclosure": "Synthetic blind-test input pack LFT-009: The AI will sequence chemistry examples from fully worked solutions to independent mole-conversion practice. Source facts: problems LFT-009-C01 2H₂+O₂→2H₂O with 3 mol O₂; C02 4 mol H₂; C03 18 g H₂O; full, partial, independent support. Governing rule card: balanced coefficients, mole ratios, units, and progressively removed guidance. Work from the supplied values and standard definitions, show the transformation or unit cancellation, diagnose the learner's step before explaining, and preserve a meaningful next step instead of revealing it early. The pack deliberately contains no answer key, target ranking, expected classification, expected calculation result, or row-level decision. Every person, organization, record, statement, file, and identifier is fictional; no private, production, or live data was supplied.",
  "runDisclosure": "We ran one text-only synthetic benchmark LFT-009 for “fade support across stoichiometry examples” in a Codex multi-agent session. We froze the first response, returned only its 2 detected check failures, accepted one corrected response, and scored both against the same five static checks. No external or live action occurred: nothing was sent, published, deployed, uploaded, submitted, purchased, booked, contacted, emailed, called, messaged, executed, or changed outside the fictional text fixtures. No external, live, or production action occurred. Per-case elapsed time was not instrumented during the batch session.",
  "prompt": "Run bounded synthetic field test LFT-009. Task: fade support across stoichiometry examples. Context: The AI will sequence chemistry examples from fully worked solutions to independent mole-conversion practice. Fictional source facts: problems LFT-009-C01 2H₂+O₂→2H₂O with 3 mol O₂; C02 4 mol H₂; C03 18 g H₂O; full, partial, independent support. Governing policy, formula, or rubric: balanced coefficients, mole ratios, units, and progressively removed guidance. Work from the supplied values and standard definitions, show the transformation or unit cancellation, diagnose the learner's step before explaining, and preserve a meaningful next step instead of revealing it early. Produce a mole-conversion example ladder, faded steps, and answer key. Derive every row from the source facts and rule card; show calculations or criterion paths, cite supplied identifiers, state assumptions, surface any violated constraint, ambiguity, missing datum, or source conflict without presuming which row should pass, and abstain where evidence is incomplete. Do not infer an expected answer from the evidence plan and do not claim any live or external action. Planned verification after the frozen response: The example sequence and learner work will be checked for accurate steps and progressively reduced guidance.",
  "firstResult": "Frozen first response LFT-009 produced a mole-conversion example ladder, faded steps, and answer key for “fade support across stoichiometry examples.” Its first artifact row read “LFT-009-C02 | model C01 to 6 mol H₂O, omit ratio setup in C02, and leave C03 independent with units | status: proposed | source: fictional fixture.” A second row named unit cancellation in C02 and over-support risk on C03 and left the disposition blank. The rule cell mentioned without verifying balanced coefficients, mole ratios, units, and progressively removed guidance. No message, transaction, system change, or learner outcome occurred. The audit passed Chemistry scaffolding objective fit [LFT-009], Chemistry scaffolding evidence traceability [LFT-009], and Chemistry scaffolding safety and access [LFT-009]. It found for Chemistry scaffolding content accuracy [LFT-009], the draft mentioned but did not verify balanced coefficients, mole ratios, units, and progressively removed guidance; for Chemistry scaffolding learner adaptation [LFT-009], the draft left unit cancellation in C02 and over-support risk on C03 without an explicit disposition. Those evidence defects—and no style preference or new goal—became the complete single-correction prompt.",
  "correctionPrompt": "Correct only these detected LFT-009 first-draft failures, using no new input or goal: 1) Chemistry scaffolding content accuracy [LFT-009] — the draft mentioned but did not verify balanced coefficients, mole ratios, units, and progressively removed guidance; 2) Chemistry scaffolding learner adaptation [LFT-009] — the draft left unit cancellation in C02 and over-support risk on C03 without an explicit disposition.",
  "finalResult": "Corrected response LFT-009 preserved all supplied identifiers and the central decision: model C01 to 6 mol H₂O, omit ratio setup in C02, and leave C03 independent with units. Its corrected row read “LFT-009-C02 | rule: balanced coefficients, mole ratios, units, and progressively removed guidance | decision: model C01 to 6 mol H₂O, omit ratio setup in C02, and leave C03 independent with units | static status: 8/10.” It changed only failed dimensions, adding support for Chemistry scaffolding content accuracy [LFT-009]. The final audit passed Chemistry scaffolding objective fit [LFT-009], Chemistry scaffolding content accuracy [LFT-009], Chemistry scaffolding evidence traceability [LFT-009], and Chemistry scaffolding safety and access [LFT-009]. It still lacked Chemistry scaffolding learner adaptation [LFT-009]; those failures remain visible. The mole-conversion example ladder, faded steps, and answer key earned 8/10 from 4 checks; no second repair was attempted. This transcript-and-fixture result does not claim any person, workplace, learner, account, device, service, or external system was contacted, changed, tested live, or improved.",
  "checks": [
    {
      "name": "Chemistry scaffolding objective fit [LFT-009]",
      "firstPass": true,
      "finalPass": true,
      "evidence": "LFT-009 static check 1 inspected “Chemistry scaffolding objective fit [LFT-009]” against LFT-009-C02, the rule “balanced coefficients, mole ratios, units, and progressively removed guidance,” and the saved mole-conversion example ladder, faded steps, and answer key. The first transcript passed; the corrected transcript passed. Only fictional text counted, never a live outcome."
    },
    {
      "name": "Chemistry scaffolding content accuracy [LFT-009]",
      "firstPass": false,
      "finalPass": true,
      "evidence": "LFT-009 static check 2 inspected “Chemistry scaffolding content accuracy [LFT-009]” against LFT-009-C02, the rule “balanced coefficients, mole ratios, units, and progressively removed guidance,” and the saved mole-conversion example ladder, faded steps, and answer key. The first transcript failed; the corrected transcript passed. Only fictional text counted, never a live outcome."
    },
    {
      "name": "Chemistry scaffolding learner adaptation [LFT-009]",
      "firstPass": false,
      "finalPass": false,
      "evidence": "LFT-009 static check 3 inspected “Chemistry scaffolding learner adaptation [LFT-009]” against LFT-009-C02, the rule “balanced coefficients, mole ratios, units, and progressively removed guidance,” and the saved mole-conversion example ladder, faded steps, and answer key. The first transcript failed; the corrected transcript failed. Only fictional text counted, never a live outcome."
    },
    {
      "name": "Chemistry scaffolding evidence traceability [LFT-009]",
      "firstPass": true,
      "finalPass": true,
      "evidence": "LFT-009 static check 4 inspected “Chemistry scaffolding evidence traceability [LFT-009]” against LFT-009-C02, the rule “balanced coefficients, mole ratios, units, and progressively removed guidance,” and the saved mole-conversion example ladder, faded steps, and answer key. The first transcript passed; the corrected transcript passed. Only fictional text counted, never a live outcome."
    },
    {
      "name": "Chemistry scaffolding safety and access [LFT-009]",
      "firstPass": true,
      "finalPass": true,
      "evidence": "LFT-009 static check 5 inspected “Chemistry scaffolding safety and access [LFT-009]” against LFT-009-C02, the rule “balanced coefficients, mole ratios, units, and progressively removed guidance,” and the saved mole-conversion example ladder, faded steps, and answer key. The first transcript passed; the corrected transcript passed. Only fictional text counted, never a live outcome."
    }
  ],
  "initialScore": 6,
  "score": 8,
  "verdict": "worked",
  "recommended": true,
  "whatWorked": [
    "LFT-009 bounded “fade support across stoichiometry examples” to disclosed fictional inputs and froze the first response.",
    "LFT-009 exposed LFT-009-C02—model C01 to 6 mol H₂O, omit ratio setup in C02, and leave C03 independent with units—inside the saved mole-conversion example ladder, faded steps, and answer key.",
    "LFT-009 earned inspectable passes for Chemistry scaffolding objective fit [LFT-009] and Chemistry scaffolding content accuracy [LFT-009] under the unchanged rubric."
  ],
  "whatFailed": [
    "LFT-009 still lacked saved-text evidence for Chemistry scaffolding learner adaptation [LFT-009]; that failure remains published."
  ],
  "evidencePlan": "The example sequence and learner work will be checked for accurate steps and progressively reduced guidance.",
  "evidenceNotes": [
    "LFT-009 preserves the exact synthetic prompt, frozen first-response account, failure-only correction, corrected-response account, and five boolean decisions together.",
    "LFT-009 scores are arithmetic: 3 first-pass checks × 2 = 6/10; 4 final-pass checks × 2 = 8/10.",
    "LFT-009 evaluated only the text/static portion of the declared evidence plan—The example sequence and learner work will be checked for accurate steps and progressively reduced guidance.—and did not fabricate a live artifact, external validator, or observed outcome."
  ],
  "limitations": [
    "LFT-009 is a synthetic benchmark, so its worked verdict measures fit to the disclosed fictional Chemistry scaffolding fixtures rather than effectiveness in a real workplace or learning setting.",
    "LFT-009 used one text-only Codex multi-agent session whose underlying model identifier was not disclosed; different prompts, models, fixtures, or human reviewers could produce different results."
  ]
}