Character skills, or "skillz", are capabilities a card's device or object may possess.
Skillz are generally always available unless otherwise stated on the card. For example, a character on a card having a skill that is only available upon entering or leaving the stream. However, a skill may be available alternating rounds, emulating the IRL complexity to invoke a skill or the time required for an energy recharge.
A skill is invoked based upon half of the card's energy to enter the stream. For example, if a card with mend expends one current (3 sparks) and one surge (6 sparks) to enter the stream, that is an energy conversion of 9 sparks (3 + 6 sparks). Take the energy conversion amount and divide by 2. In this example, that would result in 4.5 sparks. There would be 5 mending points (round up when necessary) available for a single or multiple devices, or 1 Anhackronism character in the stream.
Available skillz in the CC3 (CypherCon 3.0) card edition: