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/random6913/claude-code-superkit/new-migrationnpx skills add RaNDoM6913/claude-code-superkit --skill new-migrationgit clone --depth 1 https://github.com/RaNDoM6913/claude-code-superkitWhat 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 | $0.00026 | $0.00902 |
| Opus 5 | $0.00013 | $0.00451 |
| Sonnet 5 | $0.00005 | $0.00180 |
| Haiku 4.5 | $0.00003 | $0.00090 |
Grade A, and why
new-migration 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.
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
New Migration
Create a new database migration file pair following the project's conventions.
Context from User
Parse the user's request to determine the migration description and any specific SQL requirements.
Step 1 — Detect Migration System
Scan the project for migration directories and tools:
| Marker | Tool | Directory Pattern | Naming Pattern |
|---|---|---|---|
backend/migrations/*.sql with numbered names |
golang-migrate | backend/migrations/ |
000NNN_desc.{up,down}.sql |
migrations/*.sql with numbered names |
golang-migrate | migrations/ |
000NNN_desc.{up,down}.sql |
db/migrations/*.sql |
golang-migrate / dbmate | db/migrations/ |
NNNNNN_desc.{up,down}.sql |
db/migrate/*.rb |
Rails | db/migrate/ |
YYYYMMDDHHMMSS_desc.rb |
alembic/versions/*.py |
Alembic | alembic/versions/ |
rev_desc.py |
prisma/migrations/ |
Prisma | prisma/migrations/ |
YYYYMMDDHHMMSS_desc/ |
drizzle/ + drizzle.config.ts |
Drizzle | drizzle/ |
NNNN_desc.sql |
Step 2 — Find Next Number
# List existing migrations, find the latest number
ls <migrations_dir>/ | sort | tail -2
Increment the number by 1, keeping the project's zero-padding format.
Step 3 — Convert Description to Filename
Convert the user's description to snake_case for the filename:
- "add user preferences" ->
add_user_preferences - "Create events table" ->
create_events_table
Step 4 — Create Migration Files
Create the migration pair in the detected directory:
For SQL migrations (golang-migrate, dbmate):
Up migration (000NNN_description.up.sql):
-- 000NNN_description.up.sql
-- Description: [user's description]
-- TODO: Add your migration SQL here
-- Conventions:
-- IF NOT EXISTS / IF EXISTS for safety
-- TIMESTAMPTZ for timestamps (not TIMESTAMP)
-- BIGSERIAL or UUID for primary keys
-- JSONB for flexible metadata
-- created_at TIMESTAMPTZ NOT NULL DEFAULT now() on new tables
-- ON DELETE CASCADE or SET NULL for foreign keys
-- CREATE INDEX for frequently queried columns
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 · 103 lines · 26 tokens per session scan A 495d389f91f4
new-migration is a skill published in the GitHub repository RaNDoM6913/claude-code-superkit (2 stars, last pushed 1mo ago), licensed MIT. It adds 26 tokens to every session and 902 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 2026-08-31.
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