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Turning a Stochastic Coder into a Deterministic Collaborator

By Andreas Atle · 2026-01-05 14:21:21+00:00 · Status: published
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Introduction

Artificial intelligence has increasingly become an integral part of software development workflows, promising enhanced productivity and automation. However, in non-trivial projects, AI-assisted coding workflows frequently encounter derailments that hinder progress and reduce reliability. The central thesis of this document is that these failures arise primarily from implicit ambiguities in authority—unclear delineations of responsibility and control among the various elements that govern software behavior and evolution.

To address this challenge, we propose an explicit separation of authority elements into five distinct categories: contract, invariants, tests, tasks, and code. Each element embodies a unique form of authority within the development process. By clearly defining and isolating these components, we restore determinism and convergence in AI-assisted development, enabling more predictable and robust workflows.

This document will provide a single, explicit definition of each authority element within the authority_flow_model section, establishing a foundational vocabulary for subsequent discussions. We will also explain why iterative loops from task to code, especially when mediated by large language models (LLMs), tend to drift and degrade over time, as detailed in the observed_failure_modes section.

Further, we clarify the concept of bootstrap in the bootstrap_vs_behavior section, emphasizing that bootstrap concerns the existence of initial structures rather than their correctness. The implementation_policy_vs_semantics section distinguishes implementation policy as a form of non-semantic authority, separating it from the semantic meaning of code.

Finally, we acknowledge that the framework presented here is still evolving, with open questions and limitations that invite further research and refinement, as discussed in the limitations_and_open_questions section.

By establishing this structured approach to authority in AI-assisted coding workflows, we aim to provide a foundation for more reliable, maintainable, and convergent software development processes.

Problem Statement

AI-assisted coding workflows have shown promise in accelerating software development, yet they frequently encounter significant challenges when applied to non-trivial projects. These challenges stem from the inherent complexities of software systems and the dynamic interactions between human developers and AI models. A critical issue is the lack of clear authority delineation within the workflow, which undermines the integrity and reliability of the development process.

In complex projects, the workflow involves multiple interdependent components such as contracts, invariants, tests, tasks, and code. To maintain clarity and control, it is essential to define these components explicitly within the authority flow model. Here, a contract is a formal specification that governs the expected behavior of a component; an invariant is a condition that must always hold true throughout execution; a test is a procedure that verifies compliance with contracts and invariants; a task is a discrete unit of work aimed at producing or modifying code; and code is the executable artifact resulting from tasks.

One observed failure mode in AI-assisted workflows is the drift in task-to-code loops when using large language models (LLMs). This drift occurs because the iterative process of generating code from tasks and then deriving new tasks from that code can gradually diverge from the original intent or specification, leading to inconsistencies and errors. The absence of a robust mechanism to anchor these loops to authoritative definitions exacerbates this problem.

The concept of bootstrap is central to initializing the workflow. It is important to understand bootstrap as the mere existence of foundational elements rather than their correctness. This distinction acknowledges that initial artifacts may be imperfect but provide a necessary starting point for iterative refinement.

Implementation policy plays a pivotal role as a form of non-semantic authority. Unlike semantic specifications that define what the code should do, implementation policies govern how code is structured and maintained without imposing semantic constraints. This separation ensures that authority over code style, organization, and other non-functional aspects is clearly managed.

Despite these clarifications, the framework for AI-assisted coding workflows remains an evolving field. Limitations and open questions persist, particularly regarding how to best formalize authority boundaries and prevent drift in increasingly complex and collaborative environments. Addressing these challenges is crucial for advancing the reliability and scalability of AI-assisted software development.

Observed Failure Modes

In AI-assisted coding, particularly when leveraging large language models (LLMs), several specific failure modes emerge that challenge the stability and reliability of the task-to-code feedback loop. This section analyzes these failure modes, focusing on why the feedback loop between task specifications and generated code tends to drift, resulting in a loss of determinism and convergence.

The task-to-code feedback loop is a dynamic process where a task—defined as a formal or informal specification of desired behavior—is translated into code, which is then tested against the task’s requirements. Ideally, this loop should converge, producing code that satisfies the task invariant: a property or condition that must hold true throughout the execution of the code. Tests serve as concrete checks to verify that the code maintains this invariant, while contracts explicitly define the expected behavior and constraints between components.

However, when LLMs are introduced into this loop, the process often becomes non-deterministic. Unlike traditional deterministic compilers or synthesis tools, LLMs generate code based on probabilistic language modeling rather than strict semantic rules. This probabilistic nature causes the feedback loop to drift: successive iterations of task-to-code generation and testing may diverge rather than converge. The drift arises because the LLM’s output is influenced by subtle variations in prompt phrasing, context, and prior outputs, which can lead to inconsistent interpretations of the task or contract.

Moreover, the LLM’s internal representation does not guarantee preservation of the task invariant across iterations. As a result, even if a test passes in one iteration, subsequent code generations may violate the invariant, causing regressions. This undermines the determinism expected in traditional software development cycles and complicates the establishment of a stable implementation policy.

Implementation policy, in this context, refers to the non-semantic authority governing how code is generated and modified. It encapsulates decisions about style, structure, and heuristics that do not directly affect the semantic correctness but influence the code’s form and maintainability. Because LLMs operate under learned heuristics rather than explicit semantic rules, the implementation policy is inherently fluid and can contribute to drift in the feedback loop.

Another critical concept is bootstrap, which in this framework is defined as the existence of an initial code artifact or model rather than its correctness. Bootstrap provides a starting point for iterative refinement but does not guarantee that the initial code satisfies the task or invariant. This distinction is important because it highlights that early-stage code may be functionally incomplete or incorrect, and the feedback loop must accommodate this uncertainty.

In summary, the observed failure modes in AI-assisted coding with LLMs stem from the probabilistic and heuristic-driven nature of these models, which disrupts the deterministic convergence of the task-to-code feedback loop. Understanding these failure modes is essential for developing more robust frameworks and tools that can better manage drift, maintain invariants, and ultimately produce reliable code.

This analysis assumes the foundational definitions of contract, invariant, test, task, and code as established in the authority_flow_model section. It also acknowledges that the framework addressing these challenges is still evolving, as discussed in the limitations_and_open_questions section.

Authority Flow Model

The Authority Flow Model establishes a structured framework to delineate the core components that govern the interaction and control of behavior within a system. This section provides a single, explicit definition of the fundamental concepts—contract, invariant, test, task, and code—clarifying their roles and interrelations to set clear boundaries and responsibilities.

A contract is a formal specification that defines the expected behavior and constraints of a component or system. It serves as an authoritative agreement that prescribes what must hold true for the system to be considered correct, effectively bounding the permissible states and transitions.

An invariant is a condition or property that must remain true throughout the execution of the system, regardless of state changes. Invariants act as persistent guarantees that uphold the integrity of the system by preventing invalid states.

A test is an executable verification mechanism designed to check whether the system or its components satisfy their contracts and maintain invariants. Tests provide empirical evidence of correctness by exercising the system under specified conditions.

A task represents a discrete unit of work or objective that the system aims to accomplish. Tasks are the driving forces that invoke code execution and are the primary agents through which authority flows to effect change or produce outcomes.

Code is the concrete implementation that realizes tasks by executing instructions within the constraints imposed by contracts and invariants. It embodies the operational aspect of the system, translating abstract specifications into tangible behavior.

Within the Authority Flow Model, these concepts interact as follows: tasks initiate the execution of code, which must adhere to the contracts and maintain invariants. Tests validate this adherence, ensuring that the system behaves as intended. This interaction establishes a controlled flow of authority, where tasks delegate responsibility to code under the governance of contracts and invariants.

A critical observation in the model is the phenomenon of task-to-code loops drifting when large language models (LLMs) are involved, as discussed in observed_failure_modes. This drift occurs because the iterative feedback between tasks and code can amplify subtle deviations, leading to divergence from intended behavior over time.

The notion of bootstrap is defined here as the existence of an initial state or mechanism that enables the system to begin operation, rather than guaranteeing correctness from the outset. This distinction, elaborated in bootstrap_vs_behavior, emphasizes that establishing a starting point is separate from ensuring the system's ongoing correctness.

The implementation policy is characterized as a form of non-semantic authority, as detailed in implementation_policy_vs_semantics. It governs how code is realized and executed without altering the semantic meaning of the contracts or tasks, thereby maintaining a separation between policy-driven control and semantic correctness.

Finally, it is acknowledged in limitations_and_open_questions that the Authority Flow Model remains an evolving framework. Ongoing research and refinement are necessary to address emerging challenges and to enhance its applicability and robustness in complex systems.

Implementation Policy vs Semantics

Implementation policy represents a critical form of non-semantic authority within the framework, governing how code is realized and executed without altering its underlying semantic meaning. Unlike semantic rules, which define the intended behavior and meaning of code constructs, implementation policies dictate the permissible ways in which these constructs can be transformed, optimized, or executed by an implementation. This distinction ensures that while the form or performance characteristics of code may vary, its observable behavior remains consistent and deterministic.

In the authority_flow_model section, we establish precise definitions for foundational concepts: a contract is a formal agreement specifying expected behaviors; an invariant is a condition that must hold true throughout execution; a test verifies adherence to contracts and invariants; a task is a unit of work or objective to be accomplished; and code is the concrete representation that realizes tasks under the constraints of contracts and invariants. Implementation policy operates at the level of code realization, ensuring that transformations or execution strategies respect these definitions without semantic deviation.

The importance of implementation policy becomes particularly evident when considering the task -> code loops observed in large language models (LLMs), as discussed in observed_failure_modes. These loops tend to drift because the mapping from tasks to code is influenced by probabilistic generation rather than strict semantic constraints, leading to divergence over iterations. Implementation policies serve as guardrails that prevent such drift by enforcing consistent, non-semantic constraints on how code is produced and executed, thereby maintaining determinism.

Furthermore, the bootstrap_vs_behavior section clarifies that bootstrap refers to the existence of an initial implementation or system state rather than its correctness or semantic fidelity. Implementation policy complements this by providing the rules that govern behavior after bootstrap, ensuring that the system's evolution preserves semantic integrity.

By framing implementation policy as a non-semantic authority, this section highlights its essential role in maintaining deterministic behavior across varying implementations. It ensures that while implementations may differ in form or optimization, the semantic meaning of code—and thus the correctness of the system—is preserved.

Finally, as acknowledged in limitations_and_open_questions, the framework surrounding implementation policy and its interaction with semantics is still evolving. Ongoing research and refinement are necessary to fully characterize and formalize these relationships, especially in the context of increasingly complex and adaptive systems.

Limitations and Open Questions

The framework presented in this document represents a significant step toward understanding and formalizing the interactions between contracts, invariants, tests, tasks, and code within the authority flow model. However, it is important to acknowledge that this framework is still evolving and subject to refinement as new insights and empirical evidence emerge.

One current limitation lies in the observed failure modes, particularly the phenomenon of task-to-code loops drifting when implemented with large language models (LLMs). While the framework defines tasks as explicit units of work and code as their executable realization, the iterative feedback between task generation and code execution can lead to divergence over time. This drift challenges the stability and reliability of automated task execution and highlights the need for more robust mechanisms to maintain alignment between tasks and their corresponding code.

Another area requiring further exploration is the concept of bootstrap, which the framework defines strictly as the existence of initial structures rather than their correctness. This distinction underscores that having a starting point does not guarantee the desired behavior or outcomes, raising open questions about how to effectively guide the evolution from bootstrap existence to reliable system behavior.

Additionally, the framework's treatment of implementation policy as a form of non-semantic authority emphasizes that policies govern implementation choices without encoding semantic meaning. This separation invites further investigation into how implementation policies can be designed and enforced to balance flexibility and control without conflating authority with semantic content.

Looking forward, several open questions remain. How can the framework better accommodate the dynamic and probabilistic nature of LLM-driven task and code generation? What formal methods or empirical techniques can be developed to detect and correct drift in task-to-code loops? How might bootstrap processes be enhanced to move beyond mere existence toward correctness and robustness? And how can implementation policies be structured to support evolving semantics while maintaining clear authority boundaries?

Addressing these questions will be crucial for advancing the framework and its practical applications. As research progresses, iterative refinement and validation will help ensure that the framework remains a useful and accurate tool for modeling authority flow in complex computational systems.

Conclusion

The challenges encountered in AI-assisted coding workflows often stem from the entanglement of responsibilities and the resulting ambiguity in authority over code generation and validation. By explicitly separating authority—distinguishing contracts, invariants, tests, tasks, and code as defined in the authority_flow_model—this framework directly addresses the root causes of workflow derailments. The observed failure modes, particularly the drift in task-to-code loops when using large language models, highlight how implicit authority leads to unpredictable and non-convergent behavior. Recognizing bootstrap as a matter of existence rather than correctness clarifies the foundational assumptions necessary for system initialization, while the concept of implementation policy as a non-semantic authority underscores the importance of governance beyond mere code semantics. Although the framework provides a structured approach to restoring determinism and convergence, it remains an evolving construct, with open questions and limitations that invite further exploration. This ongoing development ensures that the framework can adapt and refine its mechanisms to better support reliable AI-assisted coding workflows.