subagenttasks

Coworker schema v2: skills-as-core + tri-language mirrors (Pydantic/Zod4/serde)

DONE 2026-07-03 per operator refactor. IDENTITY v2 centers Anthropic's Agent Skills primitive from the crawled mirrors — verbatim: a Skill packages instructions, metadata, and optional resources (scripts, templates); progressive disclosure; scripts provide deterministic operations without consuming context (the operator's thesis in Anthropic's words). skills[] now DISCOVERED from each plugin's filesystem (SKILL.md frontmatter incl. YAML block scalars after a real parse bug, bundled scripts, reference files) + skill_model grounding block. Tri-language mirrors per the fleet pattern: scripts/coworkers/schema.py (Pydantic v2, extra=forbid, validates 30/30), schema.ts (Zod 4 strictObject, tsc --noEmit + runtime parse 30/30, local package), crates/schema/src/coworker.rs (serde deny_unknown_fields + schemars + cargo test deserializing all 30 REAL files, 15/15 assert) — plus the stdlib validator for zero-dep environments. One writer (generate.py), four gates; drift precedent (agent.rs/schema.ts) cited in every mirror header. pydantic recorded in toolchain (12 entries).