AI / FlutterBench / Tasks / flutter-offline-sync-sqlite / flutter-offline-sync-sqlite__t18-o3
Trial Evaluation

flutter-offline-sync-sqlite__t18-o3

Task: google/flutter-offline-sync-sqlite
PASS
90 % Composite Reward
Model o3 OpenAI
Agent Harness codex-agent Dart MCP + Skills
Tokens 115.5k 110.0k in / 5.5k out
Cost $0.6603 USD estimated
Execution Phase Durations
Environment Setup10.0s
Agent Setup10.0s
Agent Execution2.0m
Verifier29.0s

Scoring Rubric Breakdown

Composite Reward = 0.60×Outcome + 0.30×Quality + 0.10×DX

Detailed criteria evaluation produced by automated test graders and LLM rubrics:

OUTCOMEWeight 60%
90%
sqlite_migrations wt: 30% 1.00

Schema migration and SQLite table initialization.

sync_queue_tests wt: 40% 0.90

Background sync queue and mutation synchronization.

conflict_resolution wt: 30% 1.00

Conflict resolution strategy using timestamp heuristics.

QUALITYWeight 30%
90%
StaticAnalysisGrader wt: 50% 0.90

Zero static analysis issues found.

structural_validation wt: 30% 1.00

Clean separation of concerns and architectural layers.

idiomatic_review wt: 20% 0.90

Dart 3 idioms (pattern matching, records, sealed classes) adherence.

DXWeight 10%
93%
tool_usage wt: 40% 0.93

Dart MCP tools (analyze_files, dtd, hot_reload) utilized efficiently.

trajectory wt: 30% 0.93

Linear problem-solving without excessive tool backtracking.

error_recovery wt: 30% 1.00

Fast turnaround from initial compile warnings to clean build.

Agent Execution Trajectory

Sequential step timeline captured during autonomous agent execution:

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Generated Code Artifacts

Files modified or generated by the agent during this trial:

📄 artifacts/workspace/lib/data/local_database.dart Generated 
// Generated implementation for flutter-offline-sync-sqlite
// Model: o3
// Verification score: 0.9 (pass)
📄 artifacts/workspace/lib/repositories/sync_repository.dart Generated 
// Generated implementation for flutter-offline-sync-sqlite
// Model: o3
// Verification score: 0.9 (pass)
📄 artifacts/workspace/lib/models/sync_item.dart Generated 
// Generated implementation for flutter-offline-sync-sqlite
// Model: o3
// Verification score: 0.9 (pass)
📄 artifacts/workspace/test/sync_repository_test.dart Generated 
// Generated implementation for flutter-offline-sync-sqlite
// Model: o3
// Verification score: 0.9 (pass)

Execution & Verifier Logs

Verifier Standard Output (test-stdout.txt) 
00:00 +0: loading tests/graders.dart
00:01 +1: Environment setup verification passed.
00:02 +2: Task codebase compilation check.
00:03 +3: All Offline SQLite Sync Repository unit tests passed.
00:04 +4: Static analysis: 0 warnings, 0 errors.
00:05 +5: Rubric grader verification completed.
Overall result: PASS (Score: 0.9)
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