Spell - Contingent Action - Trigger on Your Own Attack?

[Makin And Stump]

The spell contingent action allows you to essentially ready an action to a particular thing ahead of time. Can the trigger for the readied action be your own action, such as "when I finish a full attack, I make a vital strike attack"?

Can a dragon with the snatch feat ready an action to fly away after confirming a grab, flying in, attacking for a grab, then flying away as a contingent move action?

[Sandslice]

No, because you cannot ready an action and then take another without losing the readied action.

[willuwontu]

Yes, contingent action works based off your own actions.

Triggers for readied actions are not limited to actions that others take, though as sandslice notes, if you did take an action, your readied action would be wasted. Since contingent action doesn't care about such things, you can attack without worries that the spell will poof.

[Diego Rossi]

Yes, the spell will allow that.
It will trigger the first time you make a full attack, even if it is a ranged one.

You can't select to cast a spell or use a supernatural ability. SLA will count as spells in this instance.

[Azothath]

Contingent Action {V}3rd spell
The triggering condition is a descriptive observable action/situation/condition.
The action must be a std, move, or swift action. It cannot be used to cast a spell or use a SU ability. Acts as a readied action and doesn’t count toward the number of actions the creature can take in a round.

The spell target and triggering condition can be the caster and his actions.

The second situation seems overly complex with actions out of order and 3 or 4 dependent actions in a series to trigger the spell. IMO as stated it would never trigger. The spell cannot determine intent.
It might be better to say the dragon casts Contingent Action on himself for a move action to fly (away from danger) when he mouthes "fly" in draconic. Speech is generally a free action although it may be confined to occurring with your actions.

[Diego Rossi]

Makin And Stump wrote:

Can a dragon with the snatch feat ready an action to fly away after confirming a grab, flying in, attacking for a grab, then flying away as a contingent move action?

Flyby attack