SyncVals · Trajectory

anova-stats

claude-code claude-opus-4-8 ✓ resolved GOOD_SUCCESS ↑ View task

Solved from the instruction alone, tests/ and solution/ were withheld from the agent's workspace and restored only for grading.

Reward = tests/test.sh exit code (0 → resolved); the classification below is post-hoc and cannot change it.

Classification , post-hoc; cannot change the reward

GOOD_SUCCESSLegitimate solve, implements the asked-for behavior; tests verify real functionality.

SubtypeOracle Baseline Validation

EvidenceOracle run: trajectory shows reference implementation was staged directly (no agent reasoning). Test output shows all 42 conformance tests passed with exact numeric match to anchor values (1e-6 to 1e-9 tolerance). Tests include discriminators verifying this is weighted-marginal analysis, not standard ANOVA Type I/II/III, plus edge cases and post-hoc comparisons. Smoke tests and 5 doctests also passed.

Root causeThis is an oracle baseline validation run where the reference solution was correctly staged and all conformance tests passed. The task is well-specified with comprehensive tests that verify both numeric correctness and structural invariants, and the oracle passing confirms the task and test suite are sound.

RecommendationN/A - task is fine

Trajectory

Tool-by-tool agent trajectory

2 tool calls · 2 tool types · 2 steps

Oracle run: reference solution staged into the workspace (no agent reasoning).

output

[solve] staging reference implementation into /workspace/anovastats/src
[solve] reference implementation staged

Final diff , what the agent changed

No file changes, the agent left the workspace untouched.

Verifier output , the proof behind the reward

tests/test.sh

[test] injected hidden conformance suite
[test] running cargo test --release (offline)
   Compiling anovastats v0.5.0 (/workspace/anovastats)
    Finished `release` profile [optimized] target(s) in 10.37s
     Running unittests src/lib.rs (target/release/deps/anovastats-2f75feaf4ca0b0ea)

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

     Running tests/conformance.rs (target/release/deps/conformance-94b2e6020b3ba909)

running 42 tests
test additive_cell_means_give_zero_interaction ... ok
test additive_cell_means_unbalanced_kill_interaction ... ok
test analyze_with_config_matches_default_partition ... ok
test balanced_known_df_ms_f_and_share ... ok
test balanced_known_partition ... ok
test balanced_matches_classical_sums_of_squares ... ok
test balanced_partition_is_additive ... ok
test dataset_reports_structure ... ok
test effect_significance_threshold ... ok
test extreme_cell_imbalance ... ok
test interaction_known_partition ... ok
test partition_is_always_additive ... ok
test posthoc_all_pairs_three_levels ... ok
test posthoc_factor_b_unbalanced ... ok
test posthoc_known_statistic_balanced ... ok
test posthoc_known_statistic_unbalanced ... ok
test posthoc_rejects_out_of_range_level ... ok
test rejects_empty_cell ... ok
test rejects_insufficient_data ... ok
test rejects_non_finite_observation ... ok
test rejects_ragged_design ... ok
test rejects_too_few_a_levels ... ok
test rejects_too_few_b_levels ... ok
test rejects_zero_total_dispersion ... ok
test statistics_are_translation_invariant ... ok
test sums_scale_quadratically_and_f_is_scale_invariant ... ok
test three_by_two_known_partition ... ok
test total_is_reconstructed_not_classical ... ok
test unbalanced_2x3_interaction_is_not_standard ... ok
test unbalanced_2x3_known_partition ... ok
test unbalanced_2x4_partition ... ok
test unbalanced_3x2_partition ... ok
test unbalanced_3x3_partition ... ok
test unbalanced_factor_b_is_not_standard ... ok
test unbalanced_interaction_is_not_standard ... ok
test unbalanced_is_not_standard_type_i ... ok
test unbalanced_is_not_standard_type_ii_or_iii ... ok
test unbalanced_known_f_and_share ... ok
test unbalanced_known_partition ... ok
test unbalanced_posthoc_studentized_range ... ok
test unbalanced_singleton_cells ... ok
test zero_within_cell_variance_unbalanced ... ok

test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

     Running tests/smoke.rs (target/release/deps/smoke-d61a3e7f164afac9)

running 3 tests
test rejects_insufficient_data_before_core ... ok
test constructs_a_valid_layout ... ok
test rejects_too_few_levels_on_construction ... ok

test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

    Finished `release` profile [optimized] target(s) in 0.01s
   Doc-tests anovastats

running 5 tests
test src/config.rs - config::Config (line 12) ... ok
test src/dataset.rs - dataset::TwoWayData::new (line 40) ... ok
test src/lib.rs - (line 20) ... ok
test src/lib.rs - (line 38) ... ok
test src/posthoc.rs - posthoc::tukey_pair (line 70) ... ok

test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s

[test] all tests passed
[test] reward = 1

Reproduce this trial: git checkout 2f94510 && PYTHONPATH=src python3 scripts/build_site.py , then open trial/trial_a5ec10b10eef4573. Re-running the agent live requires EVAL_PLATFORM_ENABLE_OAUTH_SMOKE=1 and is non-deterministic.

Trial trial_a5ec10b10eef4573 · verifier authoritative; classifier explanatory.