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 rules/romkey/i2c-directory/databasegit clone --depth 1 https://github.com/romkey/I2C-DirectoryWhat 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 | $0.00000 | $0.00285 |
| Opus 5 | $0.00000 | $0.00143 |
| Sonnet 5 | $0.00000 | $0.00057 |
| Haiku 4.5 | $0.00000 | $0.00028 |
Grade A, and why
database 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.
What it actually says
Database and Migrations
- Database: PostgreSQL 16
- Adapter:
pggem with connection viaDATABASE_URLor individualDB_HOST/DB_PORT/DB_USERNAME/DB_PASSWORDenv vars
Migration Conventions
- Always provide a reversible migration or implement both
upanddownmethods - Use
add_indexfor columns used inWHERE,ORDER BY, orJOINclauses - Use
add_referencewithforeign_key: truefor associations - Prefer
change_column_nullover allowing nullable columns by default — be explicit - Use PostgreSQL-specific types when beneficial:
citextfor case-insensitive text,jsonbfor JSON data,uuidfor external IDs - Add
NOT NULLconstraints with defaults for new required columns on existing tables to avoid downtime
# ✅ Safe addition of a required column to an existing table
class AddStatusToMembers < ActiveRecord::Migration[8.0]
def change
add_column :members, :status, :string, null: false, default: 'active'
add_index :members, :status
end
end
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 · 30 lines · 0 tokens per session scan A 422852495c33
database is a cursor rule published in the GitHub repository romkey/I2C-Directory (11 stars, last pushed 21d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 285 tokens. 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 2026-08-30.
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