Crosscheck 0.3.0-rc.1

Crosscheck 0.3.0-rc.1

Crosscheck independently checks whether completed work meets its requirements before an owner merges a PR or closes work as completed. It runs with fresh context, keeps the target read-only, and produces an evidence-backed PASS, FAIL or BLOCKED report.

Included

• Task-aware checks for code, websites, interactions, documents, data, operations, decisions and QA processes.
• Exact-target evidence manifests and tamper-checked receipts; stale or changed work cannot reuse a PASS.
• Screenshot and interaction recording/trace requirements where needed to prove the result, with privacy review before sharing.
• Plain-language issue, PR and original-worker reporting with idempotent delivery tracking.
• Codex skill/plugin packaging and legacy installation/command compatibility.

Release scope

This is the first Crosscheck release candidate, not a stable 0.3.0 release. Codex installation, discovery and instruction invocation are verified. Claude installation/discovery is checked, but authenticated Claude model invocation remains unverified and is not part of this Codex-first release's required acceptance.

Run Crosscheck after implementation and No Mistakes where applicable, before owner-controlled merge or completed-issue closure. Only a fresh PASS for the exact target clears the QA gate. Crosscheck does not merge, close issues, deploy, or automatically enable organization-wide hooks or branch protection.

The runtime wheel and plugin archive are attached. The wheel installs the crosscheck command and retained final-boss alias. Existing legacy package paths remain available in the source. No package registry publication or automatic installation into user profiles is performed.

Implementation and review: #2

Verification

Independent Crosscheck PASS: all 20 required criteria passed, with 40 shipped tests, 51 replayed independent cases and six new counterexamples. Required verdict delivery to the PR, source issue and original worker was completed and read back before merge. The merge tree exactly matches the independently verified candidate.

Independent QA report summary. This supersedes the prior Claude-login blocker under the explicitly clarified release scope; that historical result is preserved.

This release tag identifies the exact verified candidate commit 76ce4f4c752c5c8d0c7edfe1861263e35714683a, now merged into main.