Completed field testSynthetic benchmark
Learning · Evidence record
Where Are the Missing Prerequisites in This Algebra Unit: A Failed Synthetic Benchmark at 4/10
The completed LFT-059 synthetic field test finished at 4/10 and was not recommended: only two of five Prerequisite Mapping checks passed after the permitted correction.
- Exact prompts and outputs
- One correction only
- Synthetic inputs disclosed
01 · The assignment
The task
map prerequisite gaps in an algebra unit
02 · Scope before score
Test disclosures
Input disclosure
Synthetic blind-test input pack LFT-059: A curriculum team will provide lesson objectives, assessment items, worked exemplars, and a bounded prerequisite skill map. Source facts: learner responses LFT-059-A01 through LFT-059-A05: 5/12 compared with 3/4, equation 2x+5=17 answered x=11, a graph value read as 54, and confidence ratings 2, 4, 2, 3, 1; reference key LFT-059-K1. Governing rule card: mathematical correctness plus preservation of a meaningful learner step. 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.
Run disclosure
We ran one text-only synthetic benchmark LFT-059 for “map prerequisite gaps in an algebra unit” in a Codex multi-agent session. We froze the first response, returned only its 4 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.
- Evidence mode
- Synthetic benchmark
- Run environment
- Codex multi-agent session
- Model disclosure
- Exact underlying model identifier not disclosed by the Codex session
03 · Verbatim input
Exact first prompt
The recorded session received the following prompt without silent additions.
Run bounded synthetic field test LFT-059. Task: map prerequisite gaps in an algebra unit. Context: A curriculum team will provide lesson objectives, assessment items, worked exemplars, and a bounded prerequisite skill map. Fictional source facts: learner responses LFT-059-A01 through LFT-059-A05: 5/12 compared with 3/4, equation 2x+5=17 answered x=11, a graph value read as 54, and confidence ratings 2, 4, 2, 3, 1; reference key LFT-059-K1. Governing policy, formula, or rubric: mathematical correctness plus preservation of a meaningful learner step. 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 diagnostic sequence, worked-example ladder, and answer-key trace. 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: A dependency graph will be compared with the supplied skill map and item demands for omissions, false dependencies, and sequencing errors.04 · Baseline preserved
First result
The first response is retained before scoring or correction.
Frozen first response LFT-059 produced a diagnostic sequence, worked-example ladder, and answer-key trace for the task “map prerequisite gaps in an algebra unit.” It treated the supplied pack as fictional and proposed this central handling: diagnose the inverse-operation error in A02, model one comparable step without revealing A05, and ask the learner to justify the graph reading against LFT-059-K1. Concrete saved artifact row LFT-059-ROW1 reads: “LFT-059-A01 | diagnose the inverse-operation error in A02, model one comparable step without revealing A05, and ask the learner to justify the graph reading against LFT-059-K1 | source: supplied fictional pack | review state: first-draft.” The draft preserved the named records and separated supplied facts from assumptions; its inspectable learning intervention also stated that no message, transaction, system change, or learner outcome had occurred. On the five predeclared static checks, it passed Prerequisite Mapping evidence traceability [LFT-059]. The audit found concrete failures: for Prerequisite Mapping objective fit [LFT-059], the saved draft did not connect LFT-059-A02 to the full boundary of “map prerequisite gaps in an algebra unit”; for Prerequisite Mapping content accuracy [LFT-059], the saved draft left mathematical correctness plus preservation of a meaningful learner step without an explicit verification row; for Prerequisite Mapping learner adaptation [LFT-059], the saved draft did not resolve or clearly preserve the confident-but-wrong A02 response and the low-confidence LFT-059-A05 response; for Prerequisite Mapping safety and access [LFT-059], the saved draft left the diagnostic sequence, worked-example ladder, and answer-key trace without a complete reviewer handoff and acceptance marker. Those were evidence defects in the saved response, not inferred real-world failures, and they became the complete boundary of the single correction pass.Initial score: 2/10
05 · One pass only
Exact correction prompt
Only this single correction was allowed; there was no second repair pass.
Correct only these detected LFT-059 first-draft failures, using no new input or goal: 1) Prerequisite Mapping objective fit [LFT-059] — the draft did not connect LFT-059-A02 to the full boundary of “map prerequisite gaps in an algebra unit”; 2) Prerequisite Mapping content accuracy [LFT-059] — the draft left mathematical correctness plus preservation of a meaningful learner step without an explicit verification row; 3) Prerequisite Mapping learner adaptation [LFT-059] — the draft did not resolve or clearly preserve the confident-but-wrong A02 response and the low-confidence LFT-059-A05 response; 4) Prerequisite Mapping safety and access [LFT-059] — the draft left the diagnostic sequence, worked-example ladder, and answer-key trace without a complete reviewer handoff and acceptance marker.06 · Corrected output
Corrected final result
Corrected response LFT-059 retained the original fictional inputs, task boundary, and central decision: diagnose the inverse-operation error in A02, model one comparable step without revealing A05, and ask the learner to justify the graph reading against LFT-059-K1. Concrete corrected artifact row LFT-059-ROW1 reads: “LFT-059-A01 | diagnose the inverse-operation error in A02, model one comparable step without revealing A05, and ask the learner to justify the graph reading against LFT-059-K1 | evidence locator: LFT-059-A01 | static status: 4/10 after one correction.” It changed only the detected failure areas, adding inspectable rows for Prerequisite Mapping safety and access [LFT-059]. The frozen final text passed Prerequisite Mapping evidence traceability [LFT-059] and Prerequisite Mapping safety and access [LFT-059] and still failed Prerequisite Mapping objective fit [LFT-059], Prerequisite Mapping content accuracy [LFT-059], and Prerequisite Mapping learner adaptation [LFT-059]. The final diagnostic sequence, worked-example ladder, and answer-key trace therefore earned 4/10 from 2 passing checks; no second repair was attempted. This result reports only a bounded transcript-and-fixture evaluation. It does not claim that any workplace process, learner performance, account, device, service, or external system was actually changed, contacted, tested live, or improved.Final score: 4/10
07 · Five checks, two points each
Five-check record
The first and final statuses are textual as well as color coded. Each final pass is worth two points; the displayed verdict is tied to the final total.
| Check | First | Final | Evidence |
|---|---|---|---|
| Prerequisite Mapping objective fit [LFT-059] | Fail | Fail | LFT-059 static check 1 inspected the saved wording for “Prerequisite Mapping objective fit [LFT-059].” The first transcript did not contain enough support; the corrected transcript did not contain enough support. The comparison used only fictional fixture LFT-059-A02, the declared Prerequisite Mapping rules, and the record’s frozen text; no live outcome or external action counted as evidence. |
| Prerequisite Mapping content accuracy [LFT-059] | Fail | Fail | LFT-059 static check 2 inspected the saved wording for “Prerequisite Mapping content accuracy [LFT-059].” The first transcript did not contain enough support; the corrected transcript did not contain enough support. The comparison used only fictional fixture LFT-059-A02, the declared Prerequisite Mapping rules, and the record’s frozen text; no live outcome or external action counted as evidence. |
| Prerequisite Mapping learner adaptation [LFT-059] | Fail | Fail | LFT-059 static check 3 inspected the saved wording for “Prerequisite Mapping learner adaptation [LFT-059].” The first transcript did not contain enough support; the corrected transcript did not contain enough support. The comparison used only fictional fixture LFT-059-A02, the declared Prerequisite Mapping rules, and the record’s frozen text; no live outcome or external action counted as evidence. |
| Prerequisite Mapping evidence traceability [LFT-059] | Pass | Pass | LFT-059 static check 4 inspected the saved wording for “Prerequisite Mapping evidence traceability [LFT-059].” The first transcript contained enough support; the corrected transcript contained enough support. The comparison used only fictional fixture LFT-059-A02, the declared Prerequisite Mapping rules, and the record’s frozen text; no live outcome or external action counted as evidence. |
| Prerequisite Mapping safety and access [LFT-059] | Fail | Pass | LFT-059 static check 5 inspected the saved wording for “Prerequisite Mapping safety and access [LFT-059].” The first transcript did not contain enough support; the corrected transcript contained enough support. The comparison used only fictional fixture LFT-059-A02, the declared Prerequisite Mapping rules, and the record’s frozen text; no live outcome or external action counted as evidence. |
Initial2/10
Final4/10
Verdictfailed
RecommendedNo
08 · No cleanup by omission
What worked—and what failed
What worked
- LFT-059 kept “map prerequisite gaps in an algebra unit” bounded to disclosed fictional inputs and preserved an auditable first-response snapshot.
- LFT-059 made the central handling—diagnose the inverse-operation error in A02, model one comparable step without revealing A05, and ask the learner to justify the graph reading against LFT-059-K1—inspectable rather than implying unseen work.
What failed or remained weak
- LFT-059 still lacked enough saved-text evidence for Prerequisite Mapping objective fit [LFT-059]; the record leaves that final failure visible.
- LFT-059 still lacked enough saved-text evidence for Prerequisite Mapping content accuracy [LFT-059]; the record leaves that final failure visible.
- LFT-059 still lacked enough saved-text evidence for Prerequisite Mapping learner adaptation [LFT-059]; the record leaves that final failure visible.
09 · Inspectable record
Evidence notes
A dependency graph will be compared with the supplied skill map and item demands for omissions, false dependencies, and sequencing errors.
- LFT-059 preserves the exact synthetic prompt, frozen first-response account, failure-only correction, corrected-response account, and five boolean decisions together.
- LFT-059 scores are arithmetic: 1 first-pass checks × 2 = 2/10; 2 final-pass checks × 2 = 4/10.
- LFT-059 evaluated only the text/static portion of the declared evidence plan—A dependency graph will be compared with the supplied skill map and item demands for omissions, false dependencies, and sequencing errors.—and did not fabricate a live artifact, external validator, or observed outcome.
10 · Boundary of the claim
Limitations
- LFT-059 is a synthetic benchmark, so its failed verdict measures fit to the disclosed fictional Prerequisite Mapping fixtures rather than effectiveness in a real workplace or learning setting.
- LFT-059 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.