The gif pack now bundles a render harness rather than a bare encode helper, so
the system prompt names it. It also states what the agent is actually aiming
for: measurement against production runs showed the common failure is not a
broken render but a technically-correct one that reads badly — subject drawn too
small to recognise, action narrated in a caption instead of animated. Full
findings in mort docs/audits/2026-07-24-gifsmith-quality.md.
Lifts the 'an agent uses a SKILL.md pack' concept out of a host and into the
harness:
- run.Ports.SkillPacks (SkillPackActivator) — nil-safe port; the executor folds
a loaded agent's pack catalog into the system prompt and adds a skill_use
loader tool to the toolbox (uses the existing ra.SystemPrompt + toolbox seams)
- run.RunnableAgent.SkillPacks + persona.Agent.SkillPacks (+ skill_packs YAML,
extends-inherit, ToRunnable) — the Agent noun is now pack-aware
- skillpack.Activator — the battery's default port impl (resolve names → packs →
catalog + skill_use), with a per-run BundleStager factory the host plumbs;
satisfies the port structurally (no import of run)
- agentbuiltins: ships gifsmith, a portable focused GIF/MP4 render agent that
uses the gif pack — references tool/tier/pack NAMES only, no host coupling
A host now wires run.Ports.SkillPacks instead of carrying its own activation
glue. Tests: Activator resolution + gifsmith loads through persona→RunnableAgent.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
steve
