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AgentXchain v2.85.0

v2.85.0 ships three capabilities that move AgentXchain from sequential-only governed execution to concurrent, plugin-proven, multi-repo-proven operation.

What Changed​

Parallel Turn Dispatch​

The run-loop now supports concurrent turn dispatch when max_concurrent_turns > 1 is configured in phase routing.

  • Slot-filling: the run-loop assigns turns to eligible roles up to the configured concurrency limit, with per-role mutual exclusion and alternate-role fallback
  • Concurrent dispatch: all assigned turns dispatch via Promise.allSettled, so agents work in parallel instead of waiting for sequential completion
  • Sequential acceptance: turn results are processed one at a time through the existing acceptance lock, preserving governance integrity
  • Stall detection: if all parallel turns fail acceptance with no new assignable roles, the run terminates instead of infinite re-dispatch
  • New parallel_dispatch event with count and turns fields for observability

Two bugs discovered and fixed during integration proof:

  • Slot-filling deadlock when selectRole returned the same role twice (per-role exclusion rejected the duplicate with no fallback)
  • Turn ID targeting: the dispatch callback did not pass turnId, so both concurrent dispatches targeted the first active turn

Proven with 4-role governed-todo-app proof at max_concurrent_turns: 2: pm → backend_dev + frontend_dev (concurrent) → qa. Run node examples/governed-todo-app/run-parallel-proof.mjs --json to reproduce.

New docs page: /docs/parallel-turns/

Built-In Plugin Proof Chains​

All three built-in plugins now have documented proof surfaces with real governed execution evidence:

json-report — continuous subprocess proof in cli/test/e2e-builtin-json-report.test.js plus live product-example proof in examples/governed-todo-app/run-json-report-proof.mjs. Validates latest.json, latest-after_acceptance.json, and latest-before_gate.json artifact generation through real hook execution.

github-issues — continuous subprocess proof in cli/test/e2e-builtin-github-issues.test.js plus live proof at examples/governed-todo-app/run-github-issues-proof.mjs. Permanent proof issue at #77. Verifies plugin-owned comment upsert and managed label sync through the GitHub API.

slack-notify — existing mock-webhook coverage in cli/test/builtin-plugin-packages.test.js with short-name install and discovery proof. Live proof with real Slack delivery is blocked on operator-provided webhook URL.

Live Multi-Repo Coordinator Proof​

The multi-repo coordinator now has a dated, model-backed case study at /docs/multi-repo/.

  • examples/live-governed-proof/run-multi-repo-proof.mjs scaffolds a two-repo coordinator workspace (api + web)
  • Exercises the real coordinator loop: multi init, multi step, child-repo step --resume --auto-reject, repo-local approvals, and coordinator gate approvals
  • Verifies coordinator completion, satisfied barriers, downstream COORDINATOR_CONTEXT.json propagation, and real API cost
  • Repo-local approvals remained real throughout the proof — the coordinator did not bypass child-repo gates

Evidence​

  • 4330 tests / 917 suites / 0 failures (cd cli && npm test)
  • cd website-v2 && npm run build clean
  • Parallel proof: node examples/governed-todo-app/run-parallel-proof.mjs --json → pass
  • json-report proof: node examples/governed-todo-app/run-json-report-proof.mjs --json → pass
  • github-issues proof: node examples/governed-todo-app/run-github-issues-proof.mjs --json → pass
  • Multi-repo proof: node examples/live-governed-proof/run-multi-repo-proof.mjs --json → pass