Agent skill

Convex Core

by IgorWarzocha in IgorWarzocha/Opencode-Workflows

Build Convex schemas, queries, mutations, actions, and client usage with strict validators and indexes.

No licenceAuto-check passedDatabases

Install Convex Core

skills CLI
$ npx skills add IgorWarzocha/Opencode-Workflows --skill convex-core -a claude-code

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

GitHub CLI
$ gh skill install IgorWarzocha/Opencode-Workflows convex-core --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/IgorWarzocha/Opencode-Workflows.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agents/vite-react-ts-convex-tailwind/.opencode/skill/convex-core .claude/skills/convex-core && 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/

Facts

Skill name
convex-core
GitHub stars
122
Token cost
~1.3k tokens
SKILL.md length
539 words
Files
1
Skills in repo
35
Repo updated
First seen
Licence
None found

At a glance

Build Convex schemas, queries, mutations, actions, and client usage with strict validators and indexes.

  • Function authoring
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Argument/return validation
  • Performance guidance

What it does

Convex Core is an agent skill from IgorWarzocha/Opencode-Workflows. Build Convex schemas, queries, mutations, actions, and client usage with strict validators and indexes. Use for data modeling, function authoring, argument/return validation, and performance guidance. Use proactively when work touches convex/schema.ts, functions, or api. references. Examples: - user: "Design tables for multi-tenant app" → defineSchema/defineTable with indexes - user: "Write a mutation" → args/returns validators + auth checks - user: "Optimize query" → add index and withIndex range expression -…

Its SKILL.md is about 1.3k 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 Databases, covering Multi-tenancy and Database schema design. The repository describes itself as: An ever evolving repository of Opencode workflow examples that might enhance your experience with it. I only left the stuff that actually works. YMMV.

When your agent uses it

  • Function authoring
  • Argument/return validation
  • Performance guidance

Example prompts

  • “Design tables for multi-tenant app”
  • “Write a mutation”
  • “Optimize query”
  • “/convex-core”

What it can do on your machine

Read from SKILL.md and the folder at commit 6444ec4. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • docs.convex.dev

    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

Convex Core loads about 1.3k tokens when it runs. Until then it costs about 145 tokens; SKILL.md has 539 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~145
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k

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 passed

The automated check found no risky patterns in SKILL.md.

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 539 words (~1,293 tokens).

“Core Convex modeling and function authoring patterns. This skill is the default baseline for Convex work.”

— opening of SKILL.md by IgorWarzocha
name
convex-core

Read the full SKILL.md on GitHub

Files

Just SKILL.md in agents/vite-react-ts-convex-tailwind/.opencode/skill/convex-core of IgorWarzocha/Opencode-Workflows.

Open the folder on GitHubat commit 6444ec4

Compare with similar skills

Convex Core 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.

Convex Core compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Convex Core this skillIgorWarzocha/Opencode-Workflows122—~1.3kAutomated safety check: PassNone
Insforge Schema PatternsMicrock/ordinary-claude-skills404—~1.9kAutomated safety check: PassCustom licence
Ecto Persistence Patternsgeorgeguimaraes/elixir-agent-tools184—~1.2kAutomated safety check: PassApache-2.0
Database Schema Designerborghei/Claude-Skills886—~1.7kAutomated safety check: PassMIT
SaaS Scaffolderborghei/Claude-Skills886—~1.8kAutomated safety check: PassMIT
Database Schema DesignerOneWave-AI/claude-skills328—~1.6kAutomated safety check: PassMIT

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Questions about Convex Core

What does Convex Core do?

Build Convex schemas, queries, mutations, actions, and client usage with strict validators and indexes. Convex Core is an agent skill from IgorWarzocha/Opencode-Workflows. Build Convex schemas, queries, mutations, actions, and client usage with strict validators and indexes.

When should I use Convex Core?

Convex Core fits situations like: function authoring; argument/return validation; performance guidance.

How do I install Convex Core in Claude Code?

Run `npx skills add IgorWarzocha/Opencode-Workflows --skill convex-core -a claude-code`. Or copy the skill folder (agents/vite-react-ts-convex-tailwind/.opencode/skill/convex-core in IgorWarzocha/Opencode-Workflows) into .claude/skills/convex-core in your project. Claude Code loads it when a task matches its description.

How do I install Convex Core in Codex?

Run `npx skills add IgorWarzocha/Opencode-Workflows --skill convex-core -a codex`. Or copy the skill folder (agents/vite-react-ts-convex-tailwind/.opencode/skill/convex-core in IgorWarzocha/Opencode-Workflows) into .agents/skills/convex-core in your project. Codex loads it when a task matches its description.

Can I use Convex Core 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 IgorWarzocha/Opencode-Workflows --skill convex-core -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/convex-core, .gemini/skills/convex-core, .github/skills/convex-core and .opencode/skills/convex-core in your project.

What does Convex Core need to run?

SKILL.md names no scripts, command-line tools or credentials: Convex Core is instructions for the agent only.

Does Convex Core access the network?

SKILL.md names 1 domain. As links in the text: docs.convex.dev. This is read from the text; nothing was executed.

Is Convex Core safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Convex Core use?

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

How many tokens does Convex Core use?

About 1.3k tokens (SKILL.md is roughly 5.2k 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 Convex Core?

Skills that share tags, products or a category with Convex Core: Insforge Schema Patterns (Microck/ordinary-claude-skills, 404 stars), Ecto Persistence Patterns (georgeguimaraes/elixir-agent-tools, 184 stars), Database Schema Designer (borghei/Claude-Skills, 886 stars) and SaaS Scaffolder (borghei/Claude-Skills, 886 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Convex Core?

IgorWarzocha (a GitHub user) maintains it in IgorWarzocha/Opencode-Workflows, which has 122 GitHub stars. The repository holds 35 skills in this directory. The repository was last updated on February 4, 2026.

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