Official agent skill

New Lint

Create a new splinter lint — a SQL view that checks for a database anti-pattern.

OfficialNo licenceAuto-check: notesDevelopment

Install New Lint

skills CLI

$ npx skills add supabase/splinter --skill new-lint -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install supabase/splinter new-lint --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/supabase/splinter.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/new-lint .claude/skills/new-lint && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "new-lint" agent skill from https://github.com/supabase/splinter/tree/main/.claude/skills/new-lint into .claude/skills/new-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-lint", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/supabase/splinter/tree/main/.claude/skills/new-lint

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add supabase/splinter --skill new-lint -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install supabase/splinter new-lint --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/supabase/splinter.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/new-lint .agents/skills/new-lint && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "new-lint" agent skill from https://github.com/supabase/splinter/tree/main/.claude/skills/new-lint into .agents/skills/new-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-lint", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add supabase/splinter --skill new-lint -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install supabase/splinter new-lint --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/supabase/splinter.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/new-lint .cursor/skills/new-lint && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "new-lint" agent skill from https://github.com/supabase/splinter/tree/main/.claude/skills/new-lint into .cursor/skills/new-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-lint", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/supabase/splinter.git --path .claude/skills/new-lint

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add supabase/splinter --skill new-lint -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install supabase/splinter new-lint --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/supabase/splinter.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/new-lint .gemini/skills/new-lint && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "new-lint" agent skill from https://github.com/supabase/splinter/tree/main/.claude/skills/new-lint into .gemini/skills/new-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-lint", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install supabase/splinter new-lint

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add supabase/splinter --skill new-lint -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/supabase/splinter.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/new-lint .github/skills/new-lint && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "new-lint" agent skill from https://github.com/supabase/splinter/tree/main/.claude/skills/new-lint into .github/skills/new-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-lint", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add supabase/splinter --skill new-lint -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install supabase/splinter new-lint --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/supabase/splinter.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/new-lint .opencode/skills/new-lint && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "new-lint" agent skill from https://github.com/supabase/splinter/tree/main/.claude/skills/new-lint into .opencode/skills/new-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-lint", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: new-lint
GitHub stars: 280
Token cost: ~2.9k tokens
SKILL.md length: 960 words
Files: 1
Skills in repo: 1
Repo updated: Sep 29, 2026
First seen: Oct 7, 2026
Licence: None found

At a glance

Create a new splinter lint — a SQL view that checks for a database anti-pattern.

Works in 9 steps: Determine the next lint number → Create lints/XXXX_.sql → Update bin/installcheck → …
The user asks to add a lint
SKILL.md covers Step 1 — Determine the next…, Step 2 — Create lints/XXXX_.sql, Step 3 — Update bin/installcheck and Step 4 — Create docs/XXXX_.md, plus 7 more sections
Calls docker, docker-compose and python; reaches supabase.com

What it does

New Lint is an agent skill from supabase/splinter, published by the product's own GitHub organization. Create a new splinter lint — a SQL view that checks for a database anti-pattern. Use this skill when the user asks to add a lint, create a new check, implement a linting rule, or extend splinter with a new detection.

Its SKILL.md is about 2.9k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Linting and formatting. It works with SQL, Supabase and PostgreSQL. The repository describes itself as: Supabase Postgres Linter: Performance and Security Advisors.

When your agent uses it

The user asks to add a lint
Create a new check
Implement a linting rule
Extend splinter with a new detection

Example prompts

“/new-lint”

Requirements

Python 3
Docker
Pre-approved tools (allowed-tools): Read, Edit, Write, Glob, Grep, Bash

Workflow steps

9 steps, taken from the step headings in SKILL.md.

Determine the next lint number
Create lints/XXXX_.sql
Update bin/installcheck
Create docs/XXXX_.md
Run Docker tests and generate test/expected/XXXX_.out
Update test/sql/queries_are_unionable.sql
Verify and promote test/expected/queries_are_unionable.out
Regenerate splinter.sql
Install pre-commit hooks (if not already installed)

What it can do on your machine

Read from SKILL.md and the folder at commit fccca4b. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Read
- Edit
- Write
- Glob
- Grep
- Bash
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- docker
- docker-compose
- python
- git
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
- supabase.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

New Lint loads about 2.9k tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 960 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~56
When it runs · the whole SKILL.md, loaded when a task matches: ~2.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
```
allowed-tools: Read, Edit, Write, Glob, Grep, Bash
```

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 960 words (~2,908 tokens).

“You are implementing a new lint for the splinter PostgreSQL linting tool. Follow every step in order. Do not skip steps.”

— opening of SKILL.md by supabase

name: new-lint
allowed-tools: Read, Edit, Write, Glob, Grep, Bash
argument-hint: <lint_name> <brief description of what it detects>

Outline of SKILL.md

Create a New Splinter Lint
Step 1 — Determine the next lint number
Step 2 — Create lints/XXXX_.sql
Step 3 — Update bin/installcheck
Step 4 — Create docs/XXXX_.md
Example
False Positives
Step 6 — Run Docker tests and generate test/expected/XXXX_.out
Step 7 — Update test/sql/queries_are_unionable.sql
Step 8 — Verify and promote test/expected/queries_are_unionable.out
Step 9 — Regenerate splinter.sql
Step 10 — Install pre-commit hooks (if not already installed)
Verification Checklist
Key Reference Files

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/new-lint of supabase/splinter.

Open the folder on GitHubat commit fccca4b

Compare with similar skills

New Lint next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

New Lint compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
New Lint this skillsupabase/splinter	280	—	~2.9k	Automated safety check: Notes	None	9 days ago
PR Bot Reviewspgplex/pgconsole	155	—	~2.1k	Automated safety check: Pass	Apache-2.0	1 mo ago
Requesting Code Reviewt1mmen/srtd	105	—	~807	Automated safety check: Pass	MIT	1 mo ago
Supabase Advanced Troubleshootingjeremylongshore/tons-of-skills-marketplace	2.8k	—	~2.8k	Automated safety check: Pass	MIT	today
Diesel Guardayarotsky/diesel-guard	121	—	~3.1k	Automated safety check: Pass	MIT	10 days ago
Srtd Devt1mmen/srtd	105	—	~2.3k	Automated safety check: Pass	MIT	1 mo ago

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Works with

Questions about New Lint

What does New Lint do?

Create a new splinter lint — a SQL view that checks for a database anti-pattern. New Lint is an agent skill from supabase/splinter, published by the product's own GitHub organization. Create a new splinter lint — a SQL view that checks for a database anti-pattern.

When should I use New Lint?

New Lint fits situations like: the user asks to add a lint; create a new check; implement a linting rule; extend splinter with a new detection.

How do I install New Lint in Claude Code?

Run `npx skills add supabase/splinter --skill new-lint -a claude-code`. Or copy the skill folder (.claude/skills/new-lint in supabase/splinter) into .claude/skills/new-lint in your project. Claude Code loads it when a task matches its description.

How do I install New Lint in Codex?

Run `npx skills add supabase/splinter --skill new-lint -a codex`. Or copy the skill folder (.claude/skills/new-lint in supabase/splinter) into .agents/skills/new-lint in your project. Codex loads it when a task matches its description.

Can I use New Lint in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add supabase/splinter --skill new-lint -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/new-lint, .gemini/skills/new-lint, .github/skills/new-lint and .opencode/skills/new-lint in your project.

What does New Lint need to run?

Going by SKILL.md and its folder, New Lint needs the command-line tools its instructions call (docker, docker-compose, python and git). Our summary lists: Python 3; Docker. Its frontmatter pre-approves these tools: Read, Edit, Write, Glob, Grep, Bash.

Does New Lint access the network?

SKILL.md names 1 domain. In commands or code: supabase.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is New Lint safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does New Lint use?

No licence was found for New Lint or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does New Lint use?

About 2.9k tokens (SKILL.md is roughly 12k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to New Lint?

Skills that share tags, products or a category with New Lint: PR Bot Reviews (pgplex/pgconsole, 155 stars), Requesting Code Review (t1mmen/srtd, 105 stars), Supabase Advanced Troubleshooting (jeremylongshore/tons-of-skills-marketplace, 2.8k stars) and Diesel Guard (ayarotsky/diesel-guard, 121 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains New Lint?

supabase (a GitHub organization, an official publisher) maintains it in supabase/splinter, which has 280 GitHub stars. The repository was last updated on September 29, 2026.

Source: supabase/splinter on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install New Lint

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

PR Bot Reviews

Requesting Code Review

Supabase Advanced Troubleshooting

Diesel Guard

Srtd Dev

Clickhouse Logs Queries

Related

Questions about New Lint