SRD Casting Time: a spell that takes 1 round is a full-round action
that comes into effect just before the caster's turn in the next round;
the caster then acts normally. _cast_spell now spends the slot and runs
the start-of-casting gates, then records a PendingCast (spell, target,
center, metamagic, slot level, hp at cast); delivery (touch attack, SR,
saves, effects) resolves at the start of the caster's next turn, before
the policy runs. Net hp lost in between forces the injured-while-casting
concentration check (DC 10 + damage + spell level, no Combat Casting) or
the spell fizzles; a caster knocked out of the fight loses it. Exposed
in the observation via pending_cast. Bounded model documented: net-hp
measurement instead of a per-damage-site hook; long (1 minute+) casting
stays out of scope.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
SpellSpec gains a cast_time field (seven budget codes; the JSON loader
also accepts RAW phrasings like "1 round" or "1 minute"). The pure
budget filters take a CastTimeResolver so a cast_spell occupies the slot
its casting time maps to: standard->standard, swift->swift (competing
with deed/inspire courage and dropped by a consumed immediate),
immediate/free->free, full_round and one_round->full_round (one_round
clamped: resolved end-of-turn, documented approximation), long->dropped
before the budget filter with the new downgraded:cast_time reason. The
engine binds its registry lookup via _cast_time_of (unknown names fall
back to standard, keeping transcripts byte-identical);
_choose_spell_action never selects long casts; the staggered filter now
drops full-round casts and spell_combat via the effective slot
(_FULL_ROUND_KINDS becomes dead and is deleted). Summon Monster I/II are
the only data spells marked 1 round. Metamagic full-round casting for
spontaneous casters is out of scope (future hook documented in
_cast_time_of).
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
ctan