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DB migrations · superset-sh | DecimalAI

databy superset-sh

DB migrations

superset-sh/db-migrations

Source superset-sh/superset ↗License NOASSERTION

Create a database migration with Drizzle on a fresh Neon branch.

SkillScore82Maintained

Automatic

Coding pack

Last verified 8/17/2026

What it changes

Passed 16 of 19 test cases with the skill, and 8 of 19 without it.

Without skill41%

With skill82%

Checks it passed that the model alone missed

The response lists creating a Neon branch as an initial step
The response formats the migration name argument in snake_case
The response recommends creating a new Neon branch for migration work

and 10 more in the full report

10 fixed8 passed either way3 still failing1 broke

Pass-rate lift: +41 pp
Tokens: -48%
Agent turns: 0%
Response time: -60%

Model gemini-3.6-flashMeasured 8/17/2026v218 of 22 cases passed with skill · 19 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/superset-sh-db-migrations/SKILL.md https://app.decimal.ai/s/superset-sh-db-migrations/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add superset-sh-db-migrations, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/superset-sh-db-migrations/ and pins it in .decimal/skills.lock

decimalai skills add superset-sh-db-migrations

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/superset-sh-db-migrations/SKILL.md https://app.decimal.ai/s/superset-sh-db-migrations/SKILL.md

Raw file: /s/superset-sh-db-migrations/SKILL.md ↗ · machine-readable summary at /s/superset-sh-db-migrations.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 10

Prompt

When invoking the Neon API list_projects tool programmatically in our environment, what parameter is required to retrieve project listings?

What was checked, without and with the skill
Checked	Without skill	With skill
The response specifies that org_id must be passed to the list_projects tool	Missed	Passed

case-10 · gemini-3.6-flash · 8/17/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md8 linessingle file

DB migrations

Always spin up a new neon branch to create migrations. Update our root .env files to point at the neon branch locally.
Use drizzle to manage the migration. You can see the schema at packages/db/src/schema. Generating a migration is fine; never apply one yourself, and never against a shared or production database — migrations apply through the normal deploy flow.
Create migrations by changing drizzle schema then running bunx drizzle-kit generate --name="<sample_name_snake_case>"
NEON_ORG_ID and NEON_PROJECT_ID env vars are set in .env
list_projects tool requires org_id passed in
NEVER manually edit files in packages/db/drizzle/ - this includes .sql migration files, meta/_journal.json, and snapshot files. These are auto-generated by Drizzle. Change only the schema files in packages/db/src/schema/ and let drizzle-kit generate write the migration (hand-edits to generated files require explicit user confirmation).

Track record

Benchmark

16 / 19

test cases passed, vs 8 / 19 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 8/17/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

superset-sh / superset

.agents/skills/db-migrations/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 8/17/2026Version v2

More skills from the same source and nearby in the registry, with their headline benchmark lift.

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See it in action

What's inside

DB migrations

Track record

Benchmark

Adoption

SkillSafety

Source

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