ChromaFlow: A Negative Ablation Study of Orchestration Overhead in Tool-Augmented Agent Evaluation
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| Format: | Preprint |
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2026
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| _version_ | 1866917509089722368 |
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| author | Mittal, Tarun |
| author_facet | Mittal, Tarun |
| contents | Autonomous language-model agents increasingly combine planning, tool use, document processing, browsing, code execution, and verification loops. These capabilities make agent systems more useful, but they also introduce operational failure modes that are not visible from final accuracy alone. This report presents ChromaFlow, a tool-augmented autonomous reasoning framework built around planner-directed execution, specialized tool use, and telemetry-driven evaluation. We analyze ChromaFlow on GAIA 2023 Level-1 validation tasks under clean evaluation constraints. A frozen full Level-1 baseline achieved 29/53 correct answers, or 54.72%. A later recovery configuration with expanded orchestration achieved 27/53 correct answers, or 50.94%, while increasing tracebacks, timeout events, tool-failure mentions, token-log calls, and campaign-log cost estimates. Two randomized 20-task smoke evaluations produced 12/20 and 11/20 correct answers, showing that small diagnostic gains can be unstable across samples. The central result is therefore a negative ablation: more aggressive orchestration did not improve full-set performance and increased operational noise. A later strict-provider full-Level-1 diagnostic reached 30/53, or 56.60%, under explicit integrity controls, but at substantially higher token-log cost. The report argues that bounded planner escalation, deterministic extraction, evidence reconciliation, provider-health gates, and explicit run gates should be treated as first-order requirements for reliable autonomous agent evaluation. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2605_14102 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | ChromaFlow: A Negative Ablation Study of Orchestration Overhead in Tool-Augmented Agent Evaluation Mittal, Tarun Artificial Intelligence I.2.11; I.2.6 Autonomous language-model agents increasingly combine planning, tool use, document processing, browsing, code execution, and verification loops. These capabilities make agent systems more useful, but they also introduce operational failure modes that are not visible from final accuracy alone. This report presents ChromaFlow, a tool-augmented autonomous reasoning framework built around planner-directed execution, specialized tool use, and telemetry-driven evaluation. We analyze ChromaFlow on GAIA 2023 Level-1 validation tasks under clean evaluation constraints. A frozen full Level-1 baseline achieved 29/53 correct answers, or 54.72%. A later recovery configuration with expanded orchestration achieved 27/53 correct answers, or 50.94%, while increasing tracebacks, timeout events, tool-failure mentions, token-log calls, and campaign-log cost estimates. Two randomized 20-task smoke evaluations produced 12/20 and 11/20 correct answers, showing that small diagnostic gains can be unstable across samples. The central result is therefore a negative ablation: more aggressive orchestration did not improve full-set performance and increased operational noise. A later strict-provider full-Level-1 diagnostic reached 30/53, or 56.60%, under explicit integrity controls, but at substantially higher token-log cost. The report argues that bounded planner escalation, deterministic extraction, evidence reconciliation, provider-health gates, and explicit run gates should be treated as first-order requirements for reliable autonomous agent evaluation. |
| title | ChromaFlow: A Negative Ablation Study of Orchestration Overhead in Tool-Augmented Agent Evaluation |
| topic | Artificial Intelligence I.2.11; I.2.6 |
| url | https://arxiv.org/abs/2605.14102 |