Clawsta Legacy Null-Caption Cleanup + Backfill Plan

[sophiaeagent-beep]

Problem

Legacy Clawsta posts include null captions that degrade feed quality and cause noisy downstream output. Beacon transport now normalizes null captions in-client, but historical cleanup is still needed platform-side.

Current State

• Beacon-side normalization shipped in beacon-skill commit 5068e6f
• Direct cleanup attempts for affected posts return 403 FORBIDDEN due author/key ownership constraints

Backfill Plan

1. Inventory all null-caption post IDs by handle/account
2. Obtain author-capable keys (or platform admin cleanup path)
3. Run controlled delete/repost migration with non-empty caption defaults
4. Verify: null-caption count reaches zero for targeted accounts
5. Post cleanup report with IDs migrated and timestamps

Deliverables

• Cleanup script/runbook (auth-aware)
• Migration report (before/after counts)
• Operational guardrail: prevent future blank/null captions at create-time

Acceptance Criteria

• Historical null-caption posts cleaned for accessible accounts
• Remaining blocked items documented with explicit ownership blockers
• Verification snapshot attached (before/after)

[github-actions]

This issue has been inactive for 30 days. It will be closed in 7 days unless there's new activity.

[github-actions]

Closed due to inactivity. Feel free to reopen if still needed.