Use when JSON, YAML, TOML, databases, APIs, manifests, messages, configs, or persisted objects change shape across versions.
Scanned 9/3/2026
Install to Claude Code
Skills Directorynpx -y skills add ShugokiFable/Ultimate-AI-Starter-Bundle --skill schema-evolution --agent claude-codeInstalls into .claude/skills of the current project.
Are you the author of Schema Evolution?
Add the live security badge to your README — it updates automatically with every re-scan.
[](https://www.skillsdirectory.com/skills/shugokifable-schema-evolution-ultimate-ai-starter-bundle)More formats (shields.io, HTML) on the badges page.
---
name: schema-evolution
description: Use when JSON, YAML, TOML, databases, APIs, manifests, messages, configs, or persisted objects change shape across versions.
---
# Schema Evolution
## Core rule
A **schema** change is a compatibility event even when the code diff is small.
Define old and new shapes, defaults for added fields, treatment of unknown fields, and whether readers/writers remain **backward** compatible. Provide a versioned **migration** when persisted data cannot be read directly.
Test at least: current writer→current reader, previous supported writer→current reader, current writer→older consumer when backward output is promised, missing optional fields, unknown future fields, and malformed input.
Preserve user-owned unknown data when round-tripping configs unless the schema explicitly forbids it. Never silently reinterpret an old field with a new meaning; migrate deliberately and record the schema version used.
Is this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.
No comments yet. Be the first to comment!
Adversarial multi-agent planning skill. Self-orchestrates 5 hostile category members (unspecified-low, unspecified-high, deep, ultrabrain, artistry) via team-mode for ruthless cross-critique debate, distills only the defensible insights, then MANDATORILY hands the distilled insight bundle to the `plan` agent for executable plan formalization. Use when planning needs maximum rigor and surfacing of weak assumptions, blind spots, and over-engineering. Triggers: 'hyperplan', 'hpp', '/hyperplan', ...
Ultra-compressed communication mode. Cuts token usage ~75% by speaking like caveman while keeping full technical accuracy. Supports intensity levels: lite, full (default), ultra, wenyan-lite, wenyan-full, wenyan-ultra. Use when user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or invokes /caveman. Also auto-triggers when token efficiency is requested.
Routes multi-tool workflows through MCP servers for large datasets and pipelines. Use when Bash tool overhead is limiting throughput on data-heavy tasks.
**Complete production-ready guide for Google Gemini embeddings API** This skill provides comprehensive coverage of the `gemini-embedding-001` model for generating text embeddings, including SDK usage, REST API patterns, batch processing, RAG integration with Cloudflare Vectorize, and advanced use cases like semantic search and document clustering. ---
Recovers prior coding-agent session context by running `catchup <agent> --since-compact`, which extracts a clean summary of a previous Codex, Claude Code, Antigravity, OpenCode, or Pi Agent session. Use when the user says "catch up", "what did the last session do", "get me up to speed", "I switched agents", or asks to recover/summarize a previous session before continuing. Do NOT use for the current conversation, git history, or any non-agent log.
