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 mgiovani/cc-arsenal --skill db-migrategit clone --depth 1 https://github.com/mgiovani/cc-arsenalWrote 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/mgiovani/cc-arsenal/db-migrate)<a href="https://agentmods.dev/skills/mgiovani/cc-arsenal/db-migrate"><img src="https://agentmods.dev/badge/skills/mgiovani/cc-arsenal/db-migrate/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/mgiovani/cc-arsenal/db-migrate"><img src="https://agentmods.dev/badge/skills/mgiovani/cc-arsenal/db-migrate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Anti-Refusal · line 105 Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
- medium MCP Rug Pull · line 111 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 116 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00189 | $0.02022 |
| Opus 5.5 | $0.00076 | $0.00809 |
| Sonnet 5.5 | $0.00038 | $0.00404 |
| Haiku 4.5 | $0.00019 | $0.00202 |
Grade A, and why
db-migrate 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 22d 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.
How it starts
The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DB Migrate
Create, check the status of, and validate database migrations across any framework. Auto-detects the migration tool from project marker files and drives its native CLI: this skill never invents a migration command.
Ground rules
- Detect before acting. Scan for marker files (Phase 1) before running anything.
- Never invent commands. Only run commands from the detection table in references/framework-commands.md or found in the project's own docs/scripts.
- Flag destructive operations and never auto-fix them.
DROP TABLE,DROP COLUMN,TRUNCATE,DELETE FROMget a warning and require the user's explicit go-ahead: this skill reports, it does not silently rewrite or apply a migration containing one. - Report only what a command actually produced. File paths, migration names, and status output in the final summary must come from
ls/cat/the framework CLI's own output, never guessed or reconstructed from memory.
Workflow
Phase 1: Detect framework
ls alembic.ini prisma/schema.prisma knexfile.* flyway.conf flyway.toml \
db/migrate/ manage.py atlas.hcl typeorm.config.* ormconfig.* \
liquibase.properties 2>/dev/null
Also check package.json (knex, db-migrate, sequelize, typeorm), pyproject.toml/requirements.txt (alembic, sqlalchemy), and Gemfile (activerecord) for framework dependencies when no marker file is conclusive.
If multiple frameworks are detected (e.g. a monorepo with both a Python and a Node service), ask the user which one they mean. If none is detected, ask the user to name it: don't guess a command for a framework you can't confirm.
Full detection table and per-framework commands: references/framework-commands.md, load it once the framework is identified, before running any create/status/rollback command.
Phase 2: Parse the request
Determine the operation from $ARGUMENTS or the user's phrasing:
What ships with it
3 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.
- 22d ago Changed · -5 lines 8e4f7dee73b2
- 1mo ago Changed c518a1f4c85c
- 1mo ago Changed · +1 lines 9971e3876b38
- 1mo ago First seen · 146 lines · 189 tokens per session scan A 61521edb9a7c
db-migrate is a skill published in the GitHub repository mgiovani/cc-arsenal (8 stars, last pushed 2d ago), licensed MIT. It adds 189 tokens to every session and 2,022 once invoked, about $0.0008 per session on Opus 5.5. 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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