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 ivegamsft/basecoat --skill data-tiergit clone --depth 1 https://github.com/ivegamsft/basecoatWrote 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/ivegamsft/basecoat/data-tier)<a href="https://agentmods.dev/skills/ivegamsft/basecoat/data-tier"><img src="https://agentmods.dev/badge/skills/ivegamsft/basecoat/data-tier.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 5.1 | $0.00081 | $0.00290 |
| Opus 5 | $0.00041 | $0.00145 |
| Sonnet 5 | $0.00016 | $0.00058 |
| Haiku 4.5 | $0.00008 | $0.00029 |
Grade A, and why
data-tier 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 4d 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
Data Tier Skill
Schema design, database migrations, query review, indexing strategy, and data access pattern definition.
Templates in This Skill
| Template | Purpose |
|---|---|
schema-design-template.md |
Schema design: entities, attributes, relationships, constraints, and indexes |
migration-template.md |
Migration scaffold with up/down blocks, rollback plan, and zero-downtime notes |
query-review-checklist.md |
Query review: N+1 check, index usage, pagination, explain plan guidance |
data-dictionary-template.md |
Data dictionary: table, column, type, nullable, description, and example values |
Agent Pairing
Use with data-tier agent. Schema changes require coordination with backend-dev to keep repository patterns aligned.
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago First seen · 29 lines · 81 tokens per session scan A 302f6c6d6d17
data-tier is a skill published in the GitHub repository ivegamsft/basecoat (4 stars, last pushed today), licensed MIT. It adds 81 tokens to every session and 290 once invoked, about $0.0004 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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