[waleedlatif1]

Summary

• On agent tool calls the model's args arrive under the tool's param names and merge with the stored tool params. The block's tools.config.params mapper then runs, and its output is spread over the result. A mapper that explicitly assigns a param from a differently named dedicated subBlock therefore overwrote the model's value with undefined/null, because that subBlock is never shown in agent tool-input.
• Each affected mapper now takes (params, context) and falls back to the model's value. Where an advanced subBlock with the same id could hold a stale canvas value, the fallback is gated on context?.operation, which only agent calls pass (the same pattern as the Gauge block).
• Canvas behavior is unchanged: canvas calls pass no context, and every new fallback is either context-gated or reads a field the canvas can't serialize for that operation.
• Sites:
  • Azure DevOps: pipeline and comment continuation tokens, query top, update iterationPath, comment format.
  • Outlook: reply/forward cc and bcc, send/draft importance.
  • Gmail V2: thread id, thread format, label name, list query and label ids.
  • Google Calendar: list timeZone.
  • Google Drive: page size and page token for search, revisions, comments and permissions, plus the search query.
  • Google Groups: orderBy.
  • Google Vault: includeSharedDrives.
  • Microsoft AD: $filter/$search (these assignments weren't gated, so every agent call dropped the model's value) and membership transitive.

Type of Change

• Bug fix

Testing

• Agent-call and canvas cases in the touched block tests: azure_devops, gmail, google_calendar, google_drive, google_groups, google_vault, microsoft_ad, outlook.
• All 27 agent cases fail against the pre-fix mappers, and the canvas cases pass on both versions. 79/79 pass with blocks/blocks.test.ts.
• check:utils, check:test-patterns, check:comment-hygiene, check-block-registry origin/staging, check:tool-metadata and check:docs pass.

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)

🤖 Generated with Claude Code

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Ignored	Preview	Nov 13, 2026 8:41pm UTC

[greptile-apps]

Confidence Score: 5/5

[Medium impact] The PR appears safe to merge; no actionable new issues were found.

Summary

Keeps model-supplied tool arguments when block mappers read differently named fields.

• Agent tool calls keep arguments that block fields otherwise overwrite.

_{Reviews (2) · Last reviewed commit: "fix(blocks): gate every agent fallback o..." · Reviewed by Greptile}

[cubic-dev-ai]

All reported issues were addressed across 16 files

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[waleedlatif1]

@greptile

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

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[cubic-dev-ai]

No issues found across 17 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}