The most precise and immediate remediation is to pause the specific flows performing write actions. This directly stops the irreversible operations causing the issue, as requested. Crucially, this approach allows other flows or agentic tools that provide read-only assistance to remain active, fulfilling a key requirement. Pausing a flow is a non-destructive, centrally enforceable administrative action that preserves all historical run data for audit and post-incident review. It requires no redeployment and can be executed within the 20-minute window.

A. Disabling the entire tool might also disable the required read-only assistance functions, violating a key constraint. It is less targeted than pausing specific write flows.

B. This is an identity-based security control, not a functional one. The automation would likely re-authenticate and resume its faulty logic, failing to contain the issue.

D. Lowering model temperature is a probabilistic control that reduces but does not guarantee the cessation of risky actions. It fails the "stop immediately" requirement.

1. Microsoft Power Automate Documentation, "Manage flows". Describes the administrative capability to suspend (pause) and resume cloud flows, which is a standard control for managing automation behavior. (Refer to sections on editing and managing flow properties in the Power Automate admin center).

2. Microsoft Power Platform Documentation, "Data Loss Prevention (DLP) policies". While not a direct pause, DLP policies are a central control to block specific actions (e.g., 'write' actions for a connector) across environments, illustrating the principle of granular, centrally enforced controls. (Refer to the section on "Connector action controls").

3. Microsoft Well-Architected Framework for Power Platform, "Reliability - Incident Response". Outlines the need for targeted and rapid mitigation strategies. Pausing a specific faulty component aligns with the principle of minimizing blast radius during an incident. (Refer to the "Design for Incident Response" section).