A mix of bullet points and prose is always recommended. Though, given the word limit constraint, I understand your carefulness around this. I would personally aim for around 2-4 bullet points (depending on how detailed you really want to be) accurately explained. You don’t need to link it to the firm at this point, but it’ll be good to weave in any skills acquired. Though, please don’t stress about it too much for now as the other application questions/cover letters will provide way more scope to go into that in more detail anyway.
Let me give you one example of a bullet point below:
- Interned within the in-house legal team of an investment bank. I was responsible for compiling a detailed list of matters for consideration in the next AI report to be disseminated across global fronts. In addition, typical daily tasks included document review, and recording minute meetings. Feedback from my manager on my ability to manage multiple commitments easily and simultaneously produce high-quality work, fuelled my passion to become a commercial lawyer.