AI / FlutterBench / Tasks / dart-build-cli-app / dart-build-cli-app__t41-gemini-35-flash
Trial Evaluation

dart-build-cli-app__t41-gemini-35-flash

Task: google/dart-build-cli-app
PASS
93 % Composite Reward
Model Gemini 3.5 Flash Google
Agent Harness antigravity-sdk Dart MCP + Skills
Tokens 79.3k 76.5k in / 2.8k out
Cost $0.0066 USD estimated
Execution Phase Durations
Environment Setup10.0s
Agent Setup10.0s
Agent Execution2.4m
Verifier22.0s

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%
94%
dart_compile:exe wt: 30% 1.00

Executable compiled with dart compile exe.

cli_flag_tests wt: 70% 0.94

Flag parsing tests for --help, --version, --verbose, and --format=json.

QUALITYWeight 30%
92%
StaticAnalysisGrader wt: 50% 0.92

Zero static analysis issues found.

structural_validation wt: 30% 1.00

Clean separation of concerns and architectural layers.

idiomatic_review wt: 20% 0.92

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

DXWeight 10%
90%
tool_usage wt: 40% 0.90

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

trajectory wt: 30% 0.90

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/bin/main.dart Generated 
// Generated implementation for dart-build-cli-app
// Model: gemini-3.5-flash
// Verification score: 0.93 (pass)
📄 artifacts/workspace/lib/cli_runner.dart Generated 
// Generated implementation for dart-build-cli-app
// Model: gemini-3.5-flash
// Verification score: 0.93 (pass)
📄 artifacts/workspace/lib/command_options.dart Generated 
// Generated implementation for dart-build-cli-app
// Model: gemini-3.5-flash
// Verification score: 0.93 (pass)
📄 artifacts/workspace/pubspec.yaml Generated 
// Generated implementation for dart-build-cli-app
// Model: gemini-3.5-flash
// Verification score: 0.93 (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 Build Command-Line CLI App unit tests passed.
00:04 +4: Static analysis: 0 warnings, 0 errors.
00:05 +5: Rubric grader verification completed.
Overall result: PASS (Score: 0.93)
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