CCAR-F objective 1.3 · Domain 1 · 27% of the exam

Subagent Invocation and Context Passing

A freshly spawned subagent begins with its own system prompt, the delegation message you wrote, and project-level instruction files. It does not begin with the parent's conversation, the files the parent opened, or the reasoning that narrowed the problem down, which is what makes the brief load-bearing rather than a formality. Two further facts turn up as keys. Where a tool is named in both the allowed and the denied list, the denial wins and the tool is removed. And the built-in exploration and planning agents skip instruction files deliberately, so a rule they must obey has to be restated in the prompt they are given.