I shall review the motivations and recent progress that led to the "Star-Inner Disk-Planets
Interactions" (SPIDI) project, whose long-term goal is to search for nascent inner planetary
systems still embedded in the circumstellar disks of young stars. The challenge is to isolate a
planetary signal buried in the large variability of young stars induced by the magnetic star-disk
interaction. I will thus review our current understanding of the magnetospheric accretion process
in young stars and present a few directions we might want to explore towards the goal of detecting
and characterizing disk-embedded inner planets.
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