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 skills add berkcangumusisik/claude-code-practices --skill schema-reviewgit clone --depth 1 https://github.com/berkcangumusisik/claude-code-practicesWrote 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/berkcangumusisik/claude-code-practices/schema-review)<a href="https://agentmods.dev/skills/berkcangumusisik/claude-code-practices/schema-review"><img src="https://agentmods.dev/badge/skills/berkcangumusisik/claude-code-practices/schema-review/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/berkcangumusisik/claude-code-practices/schema-review"><img src="https://agentmods.dev/badge/skills/berkcangumusisik/claude-code-practices/schema-review.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00016 | $0.00277 |
| Opus 5 | $0.00008 | $0.00138 |
| Sonnet 5 | $0.00003 | $0.00055 |
| Haiku 4.5 | $0.00002 | $0.00028 |
Grade A, and why
schema-review 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 6d 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
Database Schema Review
- Read the schema:
cat prisma/schema.prisma 2>/dev/null \
|| cat schema.sql 2>/dev/null \
|| ls migrations/ | sort | tail -5 | xargs -I{} cat migrations/{}
-
Check normalization:
- Data duplicated across tables (denormalization without justification)
- Missing junction tables for many-to-many
- Arrays/JSON where a related table would be better
-
Check indexes:
- Foreign keys without indexes (full table scan on joins)
- Columns frequently filtered/sorted without indexes
- Redundant indexes (covered by another)
-
Check naming conventions:
- Consistent casing (snake_case vs camelCase)
- Tables plural vs singular (pick one)
- Foreign key naming (
userIdvsuser_id)
-
Check data integrity:
- Nullable columns that shouldn't be
- Missing
NOT NULLconstraints - Missing
UNIQUEconstraints where applicable - Missing
ON DELETEbehavior on foreign keys
-
Report findings ranked by impact.
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.
- 6d ago First seen · 40 lines · 16 tokens per session scan A 650b18da3573
schema-review is a skill published in the GitHub repository berkcangumusisik/claude-code-practices (10 stars, last pushed 4mo ago), licensed MIT. It adds 16 tokens to every session and 277 once invoked, about $0.0001 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 2026-09-03.
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