Agentic Confidence Calibration

ICLR 2026 Conference SubmissionAnonymous Authors
Uncertainty EstimationConfidence CalibrationAI Agent
Abstract:

AI agents are rapidly advancing from passive language models to autonomous systems executing complex, multi-step tasks. Yet their overconfidence in failure remains a fundamental barrier to deployment in high-stakes settings. Existing calibration methods, built for static single-turn outputs, cannot address the unique challenges of agentic systems, such as compounding errors along trajectories, uncertainty from external tools, and opaque failure modes. To address these challenges, we introduce, for the first time, the problem of \emph{Agentic Confidence Calibration} and propose \textbf{Holistic Trajectory Calibration (\htcnospace)}, a novel diagnostic framework that extracts rich process-level features ranging from macro dynamics to micro stability across an agent’s entire trajectory. Powered by a simple, interpretable model, \htc consistently surpasses strong baselines in both calibration and discrimination, across eight benchmarks, multiple LLMs, and diverse agent frameworks. Beyond performance, \htc delivers three essential advances: it provides \emph{interpretability} by revealing the signals behind failure, enables \emph{transferability} by applying across domains without retraining, and achieves \emph{generalization} through a \emph{General Agent Calibrator} (\gacnospace) that {achieves the best calibration (lowest ECE)} on the out-of-domain GAIA benchmark. Together, these contributions establish a new process-centric paradigm for confidence calibration, {\color{blue}providing a framework} for diagnosing and enhancing the reliability of AI agents.

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This report is AI-GENERATED using Large Language Models and WisPaper (A scholar search engine). It analyzes academic papers' tasks and contributions against retrieved prior work. While this system identifies POTENTIAL overlaps and novel directions, ITS COVERAGE IS NOT EXHAUSTIVE AND JUDGMENTS ARE APPROXIMATE. These results are intended to assist human reviewers and SHOULD NOT be relied upon as a definitive verdict on novelty.
NOTE that some papers exist in multiple, slightly different versions (e.g., with different titles or URLs). The system may retrieve several versions of the same underlying work. The current automated pipeline does not reliably align or distinguish these cases, so human reviewers will need to disambiguate them manually.
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Overview

Overall Novelty Assessment

The paper introduces Agentic Confidence Calibration as a novel problem formulation and proposes Holistic Trajectory Calibration (HTC) to address multi-step agent uncertainty. It resides in the 'Holistic Trajectory Calibration Frameworks' leaf, which currently contains only this work as its sole member. This positioning suggests the paper occupies a relatively sparse research direction within the broader taxonomy, distinguishing itself from single-turn calibration methods and multi-agent deliberation approaches that populate neighboring branches.

The taxonomy reveals that the paper sits at the intersection of several active research areas. Its closest neighbors include 'Embodied Agent Confidence Elicitation' and 'Metacognitive Self-Confidence Frameworks' within the same parent branch, both addressing agent-level uncertainty but through different mechanisms. The broader 'Agentic and Trajectory-Level Calibration' branch contains only four leaf nodes, indicating this process-centric perspective on calibration remains less explored than foundational neural network calibration methods or domain-specific applications, which collectively account for over half the taxonomy's papers.

Among thirty candidates examined through semantic search, the contribution-level analysis reveals mixed novelty signals. The problem formulation for Agentic Confidence Calibration shows one refutable candidate among ten examined, suggesting some conceptual overlap with prior work on agent uncertainty. In contrast, both the HTC framework and General Agent Calibrator (GAC) components encountered no clear refutations across their respective ten-candidate searches, indicating these technical contributions may offer more distinctive methodological advances within the limited scope examined.

Based on the top-thirty semantic matches analyzed, the work appears to introduce a relatively novel perspective on trajectory-level calibration, though the limited search scope and single refutable candidate for the problem formulation suggest caution. The sparse population of its taxonomy leaf and the absence of refutations for its core technical components hint at meaningful differentiation from existing approaches, but a more exhaustive literature review would be needed to confirm the full extent of its originality.

Taxonomy

Core-task Taxonomy Papers
50
3
Claimed Contributions
30
Contribution Candidate Papers Compared
1
Refutable Paper

Research Landscape Overview

Core task: confidence calibration for autonomous AI agents. The field addresses how AI systems can accurately assess and communicate their own uncertainty when making decisions or predictions. The taxonomy reveals a rich landscape spanning nine major branches. Neural Network Calibration Foundations[47] and Uncertainty-Aware Learning and Self-Improvement[22] provide the technical underpinnings, focusing on methods that ensure model outputs reflect true probabilities and enable systems to learn from their own uncertainty. Multi-Agent Deliberation and Collective Calibration[1] and Human-AI Collaborative Calibration[2] explore how calibration emerges through interaction—either among multiple agents or between humans and machines. Agentic and Trajectory-Level Calibration examines calibration across entire decision sequences rather than isolated predictions, while Domain-Specific Calibration Applications[6] tailors these techniques to specialized contexts like autonomous vehicles[12], healthcare[16], and robotics[9]. Reliability and Robustness in Agent Systems[46] and Policy, Governance, and Ethical Frameworks[7] address the broader implications of deploying calibrated agents in safety-critical and socially sensitive settings. Several active lines of work reveal key tensions and open questions. One strand emphasizes holistic, trajectory-aware approaches that calibrate confidence over multi-step agent behaviors, contrasting with traditional per-prediction calibration methods. Another explores the interplay between self-assessment and external validation, as seen in works on metacognition[38] and human trust dynamics[43]. Agentic Confidence Calibration[0] sits squarely within the Holistic Trajectory Calibration Frameworks cluster, emphasizing end-to-end confidence assessment across agent decision sequences. This positions it closely with efforts like Uncertainty Embodied Agents[3] and Bot Knows Limitations[10], which similarly focus on agents that recognize and communicate their epistemic boundaries throughout task execution. Compared to ConfidenceCal[8], which targets calibration at individual decision points, Agentic Confidence Calibration[0] adopts a more integrated view of how uncertainty propagates and compounds across an agent's operational trajectory, reflecting a shift toward calibration as an ongoing, context-sensitive process rather than a static property.

Claimed Contributions

Agentic Confidence Calibration problem formulation

The authors formally define the novel problem of calibrating confidence in agentic AI systems by diagnosing entire execution trajectories rather than only final outputs. This formulation addresses unique challenges such as compounding errors, multi-source uncertainty from tools and environments, and opaque failure modes across multi-step reasoning processes.

10 retrieved papers
Can Refute
Holistic Trajectory Calibration (HTC) framework

The authors introduce HTC, a feature-based calibration framework that transforms raw confidence traces into process-diagnostic features (cross-step dynamics, intra-step stability, positional indicators, structural attributes) and maps them through a simple interpretable model to produce calibrated confidence estimates. The framework is decoupled from specific agent architectures and provides interpretability, transferability, and generalization.

10 retrieved papers
General Agent Calibrator (GAC)

The authors develop GAC, a pretrained universal calibrator trained on diverse datasets that generalizes to unseen tasks without retraining. GAC achieves the best calibration performance on challenging out-of-domain benchmarks, demonstrating that pretraining captures a transferable uncertainty grammar that serves as a plug-and-play reliability layer for agentic systems.

10 retrieved papers

Core Task Comparisons

Comparisons with papers in the same taxonomy category

Within the taxonomy built over the current TopK core-task papers, the original paper is assigned to a leaf with no direct siblings and no cousin branches under the same grandparent topic. In this retrieved landscape, it appears structurally isolated, which is one partial signal of novelty, but still constrained by search coverage and taxonomy granularity.

Contribution Analysis

Detailed comparisons for each claimed contribution

Contribution

Agentic Confidence Calibration problem formulation

The authors formally define the novel problem of calibrating confidence in agentic AI systems by diagnosing entire execution trajectories rather than only final outputs. This formulation addresses unique challenges such as compounding errors, multi-source uncertainty from tools and environments, and opaque failure modes across multi-step reasoning processes.

Contribution

Holistic Trajectory Calibration (HTC) framework

The authors introduce HTC, a feature-based calibration framework that transforms raw confidence traces into process-diagnostic features (cross-step dynamics, intra-step stability, positional indicators, structural attributes) and maps them through a simple interpretable model to produce calibrated confidence estimates. The framework is decoupled from specific agent architectures and provides interpretability, transferability, and generalization.

Contribution

General Agent Calibrator (GAC)

The authors develop GAC, a pretrained universal calibrator trained on diverse datasets that generalizes to unseen tasks without retraining. GAC achieves the best calibration performance on challenging out-of-domain benchmarks, demonstrating that pretraining captures a transferable uncertainty grammar that serves as a plug-and-play reliability layer for agentic systems.

Agentic Confidence Calibration | Novelty Validation