[waleedlatif1]

Summary

• Log display projection runs each envelope value (error, message, final output, block dumps) as a synthetic span alongside the real spans; the budget-overrun warning counted those as spans, so running out on the trailing block dumps read as "withholding the remaining spans" when every real span was kept
• New displayFieldsBySpanId option on projectTraceSpansForSecrets: the budget warning now reports real retainedSpanCount / withheldSpanCount and lists withheldDisplayFields separately; the message says "remaining content"
• A display field that fails its own sanitize is logged as displayField: '<key>' instead of a synthetic span id with field: 'output' (block outputs as blockOutput:<blockId>)
• Structure-fallback warnings ("exceeded projection limits", "could not be safely traversed") now carry the run ids and phase
• The post-save invariant check stamps phase: 'write' explicitly instead of deriving it from its read-only projection context
• Log payloads only: projection output, budgets, and the save path's per-field payload are unchanged

Type of Change

• Bug fix

Testing

• trace-store.test.ts, trace-secret-projection.test.ts, logging-session.test.ts (129 passing)
• New assertions shown red by reverting each guard: old span counting fails the block-dump budget test; dropping the display-field label fails the envelope ref test
• Biome on changed files; CI runs type-check, audits, and the full suite

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		Nov 5, 2026 1:41am UTC

[cubic-dev-ai]

No issues found across 4 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

[Low impact] This PR appears safe to merge.

Summary

This PR makes trace projection warnings distinguish real spans from display fields.

• Projection warnings name omitted display fields and count real spans.
• Fallback warnings identify the run and whether it was read or written.

No actionable issues were found. Tests were inspected but not run during this review.

_{Reviews (1) · Last reviewed commit: "fix(logs): name display fields and real ..." · Reviewed by Greptile}