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/evolution-foundation/evo-nexus/db-mysqlnpx skills add evolution-foundation/evo-nexus --skill db-mysqlgit clone --depth 1 https://github.com/evolution-foundation/evo-nexusWrote 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/evolution-foundation/evo-nexus/db-mysql)<a href="https://agentmods.dev/skills/evolution-foundation/evo-nexus/db-mysql"><img src="https://agentmods.dev/badge/skills/evolution-foundation/evo-nexus/db-mysql.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 | $0.00080 | $0.01959 |
| Opus 5 | $0.00040 | $0.00979 |
| Sonnet 5 | $0.00016 | $0.00392 |
| Haiku 4.5 | $0.00008 | $0.00196 |
Grade A, and why
db-mysql 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 yesterday.
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.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
What ships with it
1 file 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.
- yesterday First seen · 158 lines · 80 tokens per session scan A d5e852017e13
db-mysql is a skill published in the GitHub repository evolution-foundation/evo-nexus (530 stars, last pushed 3mo ago), with no licence file. It adds 80 tokens to every session and 1,959 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.
Other skills, from other repositories
architect-agent
A high-level system design expert. Use when: (1) planning new system architectures, (2) designing database schemas, (3) evaluating tech stacks, (4) creating technical design documents (TDD). This agent uses the sqlite-mcp to maintain a persistent architectural log for the project.
database
Database and ORM knowledge base - Prisma, Drizzle, migrations, seeding, connection pooling. Use when setting up a database, configuring an ORM, writing migrations, or managing data connections.
database-optimizer
Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.
mongodb
MongoDB MCP - query dirette a Payload CMS collections, debug dati, analisi tenant, aggregazioni. Use when querying MongoDB directly, debugging Payload CMS data, running aggregations, or analyzing tenant collections.
postgres-pro
Use when optimizing PostgreSQL queries, configuring replication, or implementing advanced database features. Invoke for EXPLAIN analysis, JSONB operations, extension usage, VACUUM tuning, performance monitoring.
sql-pro
Optimizes SQL queries, designs database schemas, and troubleshoots performance issues. Use when a user asks why their query is slow, needs help writing complex joins or aggregations, mentions database performance issues, or wants to design or migrate a schema. Invoke for complex queries, window functions, CTEs…