
Sibling Sync (Grade A)Security-tested data-ai skill for Claude AI. Grade A. Bilateral SYNERGY/UPSTREAM reconciliation across sibling projects. Use when the user wants to sync sibling SYNERGY/UPSTREAM files, compare both si
Overview
Key features
- Bilateral SYNERGY/UPSTREAM reconciliation
- Read-only by default
- Optional --auto-reciprocate flag
- Compares SYNERGY-*.md and UPSTREAM-*.md files
- Handles peer-to-peer drift between sibling vp-* projects
Pricing
- Model
- Free
- Category
- Skills
- Rating
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Use cases
Syncing Sibling Projects
Use Sibling Sync to sync sibling SYNERGY/UPSTREAM files and compare both sides to surface drift and reciprocal gaps.
Surface Friction and Drift
Use Sibling Sync to surface friction the sibling tracks about this project and detect status drift across sides.
Auto-Reciprocate
Use the optional --auto-reciprocate flag to write reciprocal entries to the sibling's SYNERGY file via per-entry confirmation.
Pros & Cons
Pros
- Surfaces drift and reciprocal gaps between sibling projects
- Flags stale-aligned rows and status drift across sides
- Surfaces friction the sibling tracks about this project
- Optional auto-reciprocate feature for writing reciprocal entries
Cons
- Not for logging entries on this side (use /synergy-tracker workflow 1)
- Not for upstream project drift (use /vendor-sync)
- Requires manual confirmation for auto-reciprocate
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Q&A
Can Sibling Sync log new synergy entries for the current project?
No, logging entries on this side is handled by the /synergy‑tracker workflow; Sibling Sync only reports findings and optionally writes to the sibling’s SYNERGY file.
Asked by Robert Ainsworth · Jan 10, 2026
When should I use Sibling Sync versus /vendor‑sync?
Use Sibling Sync for peer‑to‑peer drift between sibling projects; use /vendor‑sync for upstream project drift that involves third‑party dependencies.
Asked by Elena Rossi · Dec 13, 2025
What types of files does Sibling Sync compare?
It reconciles the SYNERGY‑*.md and UPSTREAM‑*.md files between sibling vp‑* projects, surfacing drift, gaps, stale rows, and status differences.
Asked by Rina Desai · Oct 18, 2025
Does Sibling Sync modify files automatically?
No, it operates in read‑only mode by default and only writes reciprocal entries when you use the optional --auto‑reciprocate flag, which requires per‑entry confirmation.
Asked by Ximena Torres · Oct 13, 2025
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