fix: #3043 delimit sandbox prompt instruction sections#3047
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alfozan
approved these changes
Apr 29, 2026
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This pull request fixes the rendered
SandboxAgentprompt structure so caller-provided instructions, sandbox capability guidance, remote mount policy text, and filesystem context appear as separate top-level Markdown sections.The previous prompt concatenation could make app-specific instructions look nested under SDK shell guidance, while wrapping only the caller instructions would leave later capability guidance nested under the app section. This keeps the existing prompt order and API surface while adding clear section boundaries and regression coverage.
This pull request resolves #3043.