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 skills add PolarCoding85/convex-agent-skillz --skill convex-auth-skillgit clone --depth 1 https://github.com/PolarCoding85/convex-agent-skillzWrote 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.
[](https://agentmods.dev/skills/polarcoding85/convex-agent-skillz/convex-auth-skill)<a href="https://agentmods.dev/skills/polarcoding85/convex-agent-skillz/convex-auth-skill"><img src="https://agentmods.dev/badge/skills/polarcoding85/convex-agent-skillz/convex-auth-skill/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.
<a href="https://agentmods.dev/skills/polarcoding85/convex-agent-skillz/convex-auth-skill"><img src="https://agentmods.dev/badge/skills/polarcoding85/convex-agent-skillz/convex-auth-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.01296 |
| Opus 5.5 | $0.00021 | $0.00518 |
| Sonnet 5.5 | $0.00010 | $0.00259 |
| Haiku 4.5 | $0.00005 | $0.00130 |
Grade A, and why
convex-auth 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 1mo ago.
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 — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Convex Authentication - Core Patterns
This skill covers universal auth patterns that work with ANY authentication provider.
Auth in Functions
Access the authenticated user via ctx.auth.getUserIdentity():
import { query, mutation, action } from './_generated/server';
export const myQuery = query({
args: {},
handler: async (ctx) => {
const identity = await ctx.auth.getUserIdentity();
if (identity === null) {
throw new Error('Not authenticated');
}
// identity.tokenIdentifier - unique across providers
// identity.subject - user ID from provider
// identity.email, identity.name, etc. (if configured)
}
});
UserIdentity Fields
| Field | Guaranteed | Description |
|---|---|---|
tokenIdentifier |
✅ | Unique ID (subject + issuer combined) |
subject |
✅ | User ID from auth provider |
issuer |
✅ | Auth provider domain |
email |
Provider-dependent | User's email |
name |
Provider-dependent | Display name |
pictureUrl |
Provider-dependent | Avatar URL |
Critical: Race Condition Prevention
Problem: Queries can execute before auth is validated on page load.
Client-side: Always use useConvexAuth() from convex/react, NOT your provider's hook:
// ✅ Correct - waits for Convex to validate token
import { useConvexAuth } from 'convex/react';
const { isLoading, isAuthenticated } = useConvexAuth();
// ❌ Wrong - only checks provider, not Convex validation
const { isSignedIn } = useAuth(); // from @clerk/clerk-react
Skip queries until authenticated:
const user = useQuery(api.users.current, isAuthenticated ? {} : 'skip');
Use Convex auth components:
What ships with it
2 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.
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.
- 1mo ago First seen · 206 lines · 52 tokens per session scan A 901ed7c63171
convex-auth is a skill published in the GitHub repository PolarCoding85/convex-agent-skillz (16 stars, last pushed 8mo ago), licensed MIT. It adds 52 tokens to every session and 1,296 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.
Other skills, from other repositories
mcp-server
Configure, launch, validate, and troubleshoot CCAM's comprehensive MCP server for Claude Code, Codex, and other MCP hosts. Use when installing dependencies, building the server, selecting stdio, HTTP, or REPL transport, setting mutation/destructive policy, supplying dashboard authentication, or checking complete tool…
endpoint-probe
Probes each major Agent Monitor API route — /api/stats, /api/analytics, /api/sessions, /api/pricing/cost, /api/workflows/runs, /api/cc-config/overview — and reports each one's HTTP status, latency, and response shape, flagging which are reachable. Use to verify a dashboard install is wired up correctly.
laravel-architecture
Use when structuring a Laravel project, creating services/repositories/actions, implementing dependency injection, or organizing code layers.
fusecore
Use when creating modules, understanding FuseCore structure, or implementing features in a FuseCore modular-monolith Laravel project.
laravel-api
Use when creating API endpoints, transforming responses with API Resources, or handling API authentication, rate limiting, or versioning.
laravel-attributes
Use when migrating Eloquent models, Jobs, Console commands, Controllers, API Resources, Validation, Factories or Seeders to Laravel 13 PHP attributes.