convex

convex is a skill for Claude Code, Codex from ashish7802/awesome-api-skills. It costs 0 tokens per session (540 once invoked), scanned A, original, MIT.

A platform that combines a database, backend functions, and live updates for React applications. When stored data changes, connected parts of the app can update automatically through a WebSocket connection.

In plain words
What is it for?
Use it to build live data features such as message lists, write database queries and updates in TypeScript, and call outside services from backend actions.
Why use it?
It removes much of the code normally needed to keep a frontend synchronized with a database. It also separates ordinary database changes from actions such as calling payment or AI services.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to build live data features such as message lists, write database queries and updates in TypeScript, and call outside services from backend actions.

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Install with agentmods
npx agentmods add skills/ashish7802/awesome-api-skills/convex
Install

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.

Any agent
npx skills add ashish7802/awesome-api-skills --skill convex
Clone the repo
git clone --depth 1 https://github.com/ashish7802/awesome-api-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for convex

README.md
[![agentmods](https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/convex/github.svg)](https://agentmods.dev/skills/ashish7802/awesome-api-skills/convex)
Your own site
<a href="https://agentmods.dev/skills/ashish7802/awesome-api-skills/convex"><img src="https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/convex/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for convex

Your own site · 80×15
<a href="https://agentmods.dev/skills/ashish7802/awesome-api-skills/convex"><img src="https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/convex.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 540 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00540
Opus 5 $0.00000 $0.00270
Sonnet 5 $0.00000 $0.00108
Haiku 4.5 $0.00000 $0.00054

Measured 10d ago against content hash 2ad764243a66, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

convex 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 10d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (examples/basic.py, examples/mutation.ts, examples/query.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/convex/SKILL.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Convex API Skill

Quick Start

Convex manages your database, server functions, and client state. You write server functions in TypeScript, and Convex automatically syncs the results to your React frontend via WebSockets.

npm install convex

Common Workflows

Realtime Queries

Write a query function in your convex/ folder. In your React component, use useQuery(api.messages.list). Convex handles the WebSocket subscription; if the database changes, the React component automatically re-renders.

Production Patterns

Mutations and Actions

Use mutation functions for deterministic database writes. Use action functions (which can call third-party APIs like OpenAI or Stripe) for non-deterministic side effects. Actions can subsequently call mutations to update the database.

Error Recovery

Convex automatically retries deterministic queries and mutations if they fail due to transient database locks. Actions are NOT retried automatically; handle HTTP failures explicitly within your action code.

Security Notes

Enforce authorization directly within your Convex query and mutation functions by verifying the ctx.auth object before reading or writing data.

Performance Considerations

Because queries are strictly deterministic, Convex caches their results transparently. Avoid fetching massive data sets; utilize pagination patterns or explicit limit clauses.

Testing Guidance

Use the convex-test library to write unit tests for your backend functions, passing in mock authentication states to verify your row-level security logic.

Troubleshooting

If a mutation throws a non-deterministic error (e.g., Math.random() or fetch()), Convex will reject it. Move side-effects into action functions.

References

Why use this skill

Use this when your agent works with convex — structured patterns beat pasted docs and prevent common hallucinations.

Read the full file on GitHub · 59 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 10d ago First seen · 59 lines · 0 tokens per session scan A 2ad764243a66

Subscribe to this mod's changes

convex is a skill published in the GitHub repository ashish7802/awesome-api-skills (13 stars, last pushed 9d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 540 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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