[waleedlatif1]

Summary

• Workflow edits (CLI, Chat, MCP — all go through the same operations engine) now refuse a new block whose type is sunset (legacy / deprecated), e.g. table instead of table_v2
• Covers every creation path: add, loop/parallel nestedNodes children, insert_into_subflow, and an edit that switches a block's type
• The refusal is a block_not_allowed skipped item whose reason names the successor (use "table_v2" instead) and whose details.replacedBy carries it, so the agent self-corrects
• Placed sunset blocks keep executing and stay editable; only new placements are refused, matching the catalog, which already hides sunset blocks from blocks list
• Agents were writing legacy block ids from memory; the catalog read side was already correct but the write side accepted them silently

Type of Change

• Bug fix

Testing

• lib/workflows/editing + lib/workflows/application suites: 542 passed
• New tests in operations.test.ts fail with each guard (add, nested, insert, type switch) reverted and pass with the fix
• bun run lint, check-block-registry.ts origin/staging
• Type-check / check:audits / full suite left to CI

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing (new tests pass the test-audit authoring gate)
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Oct 29, 2026 10:18pm UTC

[cubic-dev-ai]

No issues found across 2 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Turn on auto-fix | Re-trigger cubic}

[greptile-apps]

Confidence Score: 5/5

[Medium impact] The PR appears safe to merge.

Summary

Workflow edits now refuse new sunset blocks while keeping placed blocks editable.

• Workflow edits reject new sunset blocks and suggest their replacements.

_{Reviews (2) · Last reviewed commit: "test(workflows): cover sunset refusal wh..." · Reviewed by Greptile}

[waleedlatif1]

@greptile

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@waleedlatif1 I have started the AI code review. It will take a few minutes to complete.

[cubic-dev-ai]

No issues found across 2 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Turn on auto-fix | Re-trigger cubic}