| { |
| "canonical_type": "file_upload_button", |
| "coverage": { |
| "agent_run_count": 4, |
| "available_run_uids": [ |
| "gemini__gemini-3.1-flash-lite__browsergym__ax_tree", |
| "gemini__gemini-3.1-flash-lite__browsergym__som", |
| "gemini__gemini-3.1-flash-lite__browsergym__pixel", |
| "gemini__gemini-3.1-flash-lite__browser_use__browser_use" |
| ], |
| "human_available": true, |
| "human_visual_available": false, |
| "realized_available": true |
| }, |
| "cross_run_analysis": { |
| "dominant_failure_family": "grounding", |
| "evidence_run_uids": [ |
| "gemini__gemini-3.1-flash-lite__browsergym__som", |
| "gemini__gemini-3.1-flash-lite__browsergym__pixel" |
| ], |
| "evidence_step_refs": [ |
| "gemini__gemini-3.1-flash-lite__browsergym__som#0", |
| "gemini__gemini-3.1-flash-lite__browsergym__som#1", |
| "gemini__gemini-3.1-flash-lite__browsergym__som#2", |
| "gemini__gemini-3.1-flash-lite__browsergym__pixel#0", |
| "gemini__gemini-3.1-flash-lite__browsergym__pixel#3", |
| "gemini__gemini-3.1-flash-lite__browsergym__pixel#10" |
| ], |
| "likely_grounding_limited": true, |
| "likely_recovery_limited": true, |
| "likely_skill_fixable": true, |
| "secondary_failure_families": [ |
| "recovery_state_tracking" |
| ], |
| "why": "This task is mostly about binding the correct trash/delete affordance to one filename inside a dense, scrollable MUI list of nearly identical rows. The successful AX-tree and browser_use runs could target the row semantically and finish in one click once the page was ready. The failed SOM and pixel runs diverged immediately from the human at step 0, selected the wrong row or wrong coordinates, and then either declared the target absent after their own mis-clicks or looped through repeated clicks and scrolls without re-establishing which row they were acting on." |
| }, |
| "family_id": "files_clipboard", |
| "interesting_observation": "The task looks like a simple one-click delete, but the decisive factor is whether the observation mode preserves row-to-icon association; when that association is explicit, the task becomes trivial, and when it is weak, the agent harms nearby rows or loops.", |
| "library": "mui", |
| "paper_useful_quote": "In this MUI multi-file uploader, failure was driven less by not knowing the delete idiom than by mis-grounding the delete icon to the correct filename in a visually repetitive list.", |
| "run_observations": [ |
| { |
| "confidence": "high", |
| "evidence_image_paths": [], |
| "evidence_step_ids": [ |
| 0 |
| ], |
| "failure_or_success_narrative": "The AX-tree agent succeeded immediately with a single click action. Relative to the human's two-step trajectory, it skipped the no-op scroll and directly activated the correct control for the target row, indicating that the accessibility representation exposed the right row-level affordance clearly enough for exact selection.", |
| "first_divergence_agent_step": null, |
| "first_divergence_human_step": null, |
| "framework": "browsergym", |
| "human_vs_agent_difference": "The human performed an initial scroll then clicked the delete control; this agent omitted the scroll and directly clicked the correct accessible element in one step.", |
| "is_benchmark_issue": false, |
| "is_grounding_limited": false, |
| "is_skill_fixable": false, |
| "mode": "ax_tree", |
| "model_family": "gemini", |
| "model_name": "gemini/gemini-3.1-flash-lite", |
| "primary_failure_family": "none", |
| "repair_suggestion": "No repair needed for this mode; it already grounds the target row correctly.", |
| "run_uid": "gemini__gemini-3.1-flash-lite__browsergym__ax_tree", |
| "secondary_failure_tags": [], |
| "success": true, |
| "uncertainty_note": "The exact AX-node label is not shown, but the clean one-step success and alignment summary make the interaction unambiguous." |
| }, |
| { |
| "confidence": "medium", |
| "evidence_image_paths": [], |
| "evidence_step_ids": [ |
| 0, |
| 1, |
| 2 |
| ], |
| "failure_or_success_narrative": "The SOM run failed after two clicks and an infeasible report. It diverged from the human immediately by clicking instead of doing the initial viewport-adjustment step, then clicked two different targets in the list and finally claimed that 'log_2025-11-20.txt' was not present. The contact sheet shows list state changing across those clicks without task completion, which is consistent with mis-binding the repeated delete icons to the wrong file row and then not recognizing the resulting state correctly.", |
| "first_divergence_agent_step": 0, |
| "first_divergence_human_step": 0, |
| "framework": "browsergym", |
| "human_vs_agent_difference": "Instead of the human's simple scroll-then-click pattern, the agent made two direct row selections in the dense list and then stopped early by declaring the target infeasible.", |
| "is_benchmark_issue": false, |
| "is_grounding_limited": true, |
| "is_skill_fixable": true, |
| "mode": "som", |
| "model_family": "gemini", |
| "model_name": "gemini/gemini-3.1-flash-lite", |
| "primary_failure_family": "grounding", |
| "repair_suggestion": "Require row-level verification before clicking a delete icon and require a success check after any deletion rather than inferring infeasibility from a changed list.", |
| "run_uid": "gemini__gemini-3.1-flash-lite__browsergym__som", |
| "secondary_failure_tags": [ |
| "wrong_instance", |
| "state_not_observed", |
| "premature_terminate" |
| ], |
| "success": false, |
| "uncertainty_note": "The contact-sheet text is too small to read the exact wrong filename(s), so the precise row(s) deleted cannot be verified visually." |
| }, |
| { |
| "confidence": "high", |
| "evidence_image_paths": [], |
| "evidence_step_ids": [ |
| 0, |
| 1, |
| 3, |
| 6, |
| 10, |
| 13, |
| 14 |
| ], |
| "failure_or_success_narrative": "The pixel run never stabilized on the target row. It started with repeated clicks around the right edge of the list, then scrolled up and down, and later continued clicking nearly the same coordinates such as around (1184,396) multiple times. The contact sheet shows the list eventually shifted to later dates like 2025-11-24 and beyond, meaning the agent moved away from the desired 2025-11-20 row while still trying similar clicks. This is a grounding failure compounded by poor recovery, ending at max steps.", |
| "first_divergence_agent_step": 0, |
| "first_divergence_human_step": 0, |
| "framework": "browsergym", |
| "human_vs_agent_difference": "The human only needed to ensure the widget was in view and click once, while the pixel agent guessed at trash-icon coordinates, scrolled the list away from the target, and looped.", |
| "is_benchmark_issue": false, |
| "is_grounding_limited": true, |
| "is_skill_fixable": true, |
| "mode": "pixel", |
| "model_family": "gemini", |
| "model_name": "gemini/gemini-3.1-flash-lite", |
| "primary_failure_family": "grounding", |
| "repair_suggestion": "Use stronger row-text-to-icon association, detect repeated coordinate failures, and re-anchor on the target filename after any scroll before issuing another click.", |
| "run_uid": "gemini__gemini-3.1-flash-lite__browsergym__pixel", |
| "secondary_failure_tags": [ |
| "wrong_instance", |
| "looping", |
| "cannot_recover_after_error", |
| "state_not_observed" |
| ], |
| "success": false, |
| "uncertainty_note": "The exact hit-testing outcome of each click is not shown, but the repeated near-identical coordinates and later-date list screenshots make the failure pattern clear." |
| }, |
| { |
| "confidence": "high", |
| "evidence_image_paths": [], |
| "evidence_step_ids": [ |
| 1, |
| 2 |
| ], |
| "failure_or_success_narrative": "The browser_use run succeeded cleanly after navigation. Once the page loaded, it identified the target file's remove control in the DOM-oriented browser_use representation, clicked it, and the green 'Task completed' banner appeared. This confirms that the task mechanics are stable when the agent can map the target filename to the corresponding remove button reliably.", |
| "first_divergence_agent_step": 0, |
| "first_divergence_human_step": 0, |
| "framework": "browser_use", |
| "human_vs_agent_difference": "This run differs from the human mostly because the framework includes an explicit navigation step; after that, it matched the human's effective behavior by using a single correct delete click.", |
| "is_benchmark_issue": false, |
| "is_grounding_limited": false, |
| "is_skill_fixable": false, |
| "mode": "browser_use", |
| "model_family": "gemini", |
| "model_name": "gemini/gemini-3.1-flash-lite", |
| "primary_failure_family": "none", |
| "repair_suggestion": "No repair needed for this mode; it already resolves the row-control mapping well enough to complete the task.", |
| "run_uid": "gemini__gemini-3.1-flash-lite__browser_use__browser_use", |
| "secondary_failure_tags": [], |
| "success": true, |
| "uncertainty_note": "The DOM index is opaque, but the completion banner in the contact sheet confirms the click was the correct one." |
| } |
| ], |
| "schema_version": "layer2_task_v1", |
| "task_id": "file_upload_button-mui-T20", |
| "task_level_judgment": { |
| "benchmark_issue_note": "The task appears well-formed: the human succeeds quickly, two agent modes also succeed, and failures are mode-specific rather than indicating a broken success trigger.", |
| "benchmark_issue_suspected": false, |
| "confidence": "high", |
| "cross_run_summary": "This task cleanly separates semantic row grounding from raw click execution. AX-tree and browser_use solve it nearly immediately because they can associate the delete affordance with the exact filename row, while SOM and especially pixel struggle with the visually repetitive list, mis-target a row, and then fail to recover once the list state changes.", |
| "keep_revise_expand_retire_hint": "keep", |
| "keep_revise_reason": "Keep this task because it is diagnostic without being ambiguous: it exposes whether an agent can bind repeated controls to the correct list item in a realistic MUI uploader, and the contrast across observation modes is strong.", |
| "overall_diagnostic_value": "high", |
| "primary_task_story": "Although the surface action is just 'delete one file,' the benchmark challenge is localizing the one correct delete icon among many nearly identical rows in a scrollable uploader. The task is especially diagnostic because the human solves it instantly, semantic modes also succeed, but weaker visual grounding modes either delete the wrong instance or lose track of the list after scrolling.", |
| "uncertainty_note": "The exact filenames affected by the failed SOM clicks are not legible in the provided contact sheet, but the broader failure pattern is still well supported by the trace summaries and images." |
| } |
| } |
