She was an aide to San Jose Vice Mayor Cindy Chavez and California State Assembly member Herb Wesson.

[9][10] In 2024, Stefani voted to override Mayor London Breed's veto of legislation that prevented dense housing in the northeast waterfront and Jackson Square.

"[11] In 2019, Stefani voted for a resolution to declare a state of emergency for traffic injuries and deaths in San Francisco, reaffirming the city's 2014 Vision Zero commitment.

"[17][18] In February 2019 Stefani challenged the renewal of a multi-million dollar contract with another mental health services provider pointing out that the organization "are not scoring highly on RFPs, have not always met standards and are not at their budgeted level of deliverables".

[19] In March 2019 Stefani called for a hearing to investigate the lack of mental health services available to San Francisco's homeless population, and requested more hospital beds for those who need psychiatric treatment.

[23] Shortly after taking office, Stefani introduced the Free Speech Protection Act prohibiting firearms within 500 ft (150 m) of public events of 50 people or more such as protests, marches and rallies.

[24] After the Gilroy Garlic Festival shooting, Stefani introduced a resolution that designated the National Rifle Association of America a domestic terrorist organization.

[26] In April 2019 she requested the San Francisco City Attorney draft legislation to implement gun violence restraining orders which would allow firearms to be temporarily seized from owners who pose a safety risk to themselves or others.

[31] The San Francisco Arts Commission's selection panel recommended visual artist Lava Thomas' proposal, a 9-foot tall bronze book with Angelou's face and quote etched onto it.