v26.9.8

[26.9.8] - 2026-09-08

Added

• Cross-harness subagent delegation and poly-model routing (#239, #240).
  • Added core/scripts/dispatch_agent.py helper script allowing @techlead to delegate specialist tasks across different agent CLI harnesses (claude-code, antigravity, copilot) when [orchestration] is declared in team.toml.
  • Supports explicit route mapping per specialist under [orchestration.routes] with automatic fallback to native host harness if target CLI is unavailable.
• Embedded default hybrid specialization matrix in dispatch_agent.py (#241, #242).
  • Implemented zero-config hybrid routing matrix when --harness auto or unconfigured: routes @dev and @sec to claude-code, @rev and @research to antigravity (large-context review/survey), and @sre/@design to the native host harness.
  • Added automatic capability detection via shutil.which and graceful fallback to host harness when a target CLI binary is not present on PATH.
• New upstream contribution skill /marc:upstream (@scribe).
  • Added core/skills/upstream/SKILL.md (and compiled to all harnesses) allowing teams in consuming repos to safely harvest local emergent rules, sanitize sensitive client facts, apply governed rule provenance (<!-- rules:origin-required -->), and open Pull Requests/Issues upstream to NexaDuo/mARC with explicit human opt-in.
• Durable evaluation and decision records for AI-Memory 2.0.
  • Added research brief docs/marc/2026-09-08-brief-ai-memory-2-evaluation.md and decision record docs/marc/2026-09-08-decision-ai-memory-2-reaffirmation.md.
  • Reaffirmed Decision #175 (mARC remains marketplace-only, zero-config, and PR-gated without mandatory daemon dependencies).
  • Adopted four core zero-dependency patterns: Open Knowledge Format (OKF) artifact metadata, static typed rule relation checks (supersedes, contradicts), operator baton handoff conventions, and opt-in read-only MCP bridging.

Changed

• Migrated versioning scheme to Calendar Versioning (CalVer YY.M.D).
  • Transitioned from SemVer 0.28.0 to CalVer 26.9.8 across all plugin manifests (claude-code, antigravity, copilot), aligning release versions directly with date-governed rule provenance.