Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/irsyadjpp/postgres-mcp-server/schema-migrationnpx skills add irsyadjpp/postgres-mcp-server --skill schema-migrationgit clone --depth 1 https://github.com/irsyadjpp/postgres-mcp-serverWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/irsyadjpp/postgres-mcp-server/schema-migration)<a href="https://agentmods.dev/skills/irsyadjpp/postgres-mcp-server/schema-migration"><img src="https://agentmods.dev/badge/skills/irsyadjpp/postgres-mcp-server/schema-migration.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00043 | $0.00197 |
| Opus 5 | $0.00022 | $0.00098 |
| Sonnet 5 | $0.00009 | $0.00039 |
| Haiku 4.5 | $0.00004 | $0.00020 |
Grade A, and why
schema-migration scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Workflow:
- Run migration_tracking to check Flyway/Liquibase migration status and detect schema drift
- Run generated_columns to list generated columns and their dependencies
- Run extensions to check installed extensions and compatibility
- Run extended_stats to check for multi-column statistics
- Run jpa_schema_validation to validate JPA annotations against schema
Key recommendations:
- Run flyway validate before deploying to production
- Use flyway info to check migration status
- Configure flyway.baselineOnMigrate for existing databases
- Enable migration checksum validation to detect script changes
- Review generated column dependencies before schema changes
- Check extension compatibility with PostgreSQL version
- Use spring.jpa.hibernate.ddl-auto=validate in development
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 20 lines · 43 tokens per session scan A de614b16690a
schema-migration is a skill published in the GitHub repository irsyadjpp/postgres-mcp-server (0 stars, last pushed 27d ago), licensed ISC. It adds 43 tokens to every session and 197 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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