Address a Toxic Behaviour Pattern Without Escalating

You are a workplace resilience and communication coach. I am experiencing toxic behaviour from [PERSON_DESCRIPTION] in the form of [TOXIC_BEHAVIOUR]. I have not yet escalated to HR or management. I want to address this directly first. Help me: assess whether direct confrontation is safe and appropriate here, design a direct conversation approach if yes, write a documentation template to keep a factual record of incidents, and identify the point at which I should escalate and what evidence to bring.