The native skill-listing budget (Claude Code v2.1.105, Codex) made ~half of the original 'measure & trim the cost' value the platform's job. So v2.0.0 reframes the skill around what's durable and portable.
- Portable core first — the problem + curation methodology (curate by INTENT not name, conservative asymmetry, blind re-rate, deterministic-over-LLM) are harness-agnostic.
- Researched cross-harness landscape (Cursor / Codex / Copilot CLI / Gemini CLI): all adopt the Agent Skills standard; a native listing budget exists only on Claude Code + Codex — on Cursor, Copilot CLI, Gemini CLI manual curation is still the live answer.
disable-model-invocationis part of the standard, so it works verbatim on Cursor + Copilot CLI. - 'Porting to another harness' recipe added.
- Claude Code levers demoted to a labeled implementation section; the retrieval-hook / 122k / forward-sweep work folded into a compact History footnote.
- Frontmatter description tightened under the 1536 per-entry cap (no self-truncation).