Latitude is an open-source platform for monitoring AI agents by collecting execution traces, grouping failures, dispatching coding agents to make fixes, and replaying failures to verify them. Teams use it to observe agent behavior, investigate errors, and monitor whether fixes prevent regressions. The catalogue entries include skills, instructions, and an MCP server for working with Latitude.
Borrowing it
Nothing to install: this file belongs to latitude-dev/latitude-llm. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/latitude-dev/latitude-llm/development/.agents/skills/better-auth-best-practices/SKILL.mdgit clone --depth 1 https://github.com/latitude-dev/latitude-llmWrote 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/latitude-dev/latitude-llm/better-auth-best-practices)<a href="https://agentmods.dev/skills/latitude-dev/latitude-llm/better-auth-best-practices"><img src="https://agentmods.dev/badge/skills/latitude-dev/latitude-llm/better-auth-best-practices/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/latitude-dev/latitude-llm/better-auth-best-practices"><img src="https://agentmods.dev/badge/skills/latitude-dev/latitude-llm/better-auth-best-practices.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 4 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 18 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 35 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 36 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 37 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00061 | $0.01675 |
| Opus 5 | $0.00030 | $0.00838 |
| Sonnet 5 | $0.00012 | $0.00335 |
| Haiku 4.5 | $0.00006 | $0.00168 |
Grade A, and why
better-auth-best-practices 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.
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.
Copies of this mod
8 near-identical copies found in the catalogue:
- better-auth-best-practices — 100% identical, 35 lines differ
- better-auth-best-practices — 100% identical, 1 lines differ
- better-auth-best-practices — 100% identical, 0 lines differ
- tool-better-auth — 88% identical, 16 lines differ
- better-auth-best-practices — 86% identical, 48 lines differ
- better-auth-best-practices — 86% identical, 13 lines differ
- better-auth-best-practices — 86% identical, 13 lines differ
- better-auth-best-practices — 86% identical, 48 lines differ
How it starts
The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Better Auth Integration Guide
Always consult better-auth.com/docs for code examples and latest API.
Setup Workflow
- Install:
npm install better-auth - Set env vars:
BETTER_AUTH_SECRETandBETTER_AUTH_URL - Create
auth.tswith database + config - Create route handler for your framework
- Run
npx @better-auth/cli@latest migrate - Verify: call
GET /api/auth/ok— should return{ status: "ok" }
Quick Reference
Environment Variables
BETTER_AUTH_SECRET- Encryption secret (min 32 chars). Generate:openssl rand -base64 32BETTER_AUTH_URL- Base URL (e.g.,https://example.com)
Only define baseURL/secret in config if env vars are NOT set.
File Location
CLI looks for auth.ts in: ./, ./lib, ./utils, or under ./src. Use --config for custom path.
CLI Commands
npx @better-auth/cli@latest migrate- Apply schema (built-in adapter)npx @better-auth/cli@latest generate- Generate schema for Prisma/Drizzlenpx @better-auth/cli mcp --cursor- Add MCP to AI tools
Re-run after adding/changing plugins.
Core Config Options
| Option | Notes |
|---|---|
appName |
Optional display name |
baseURL |
Only if BETTER_AUTH_URL not set |
basePath |
Default /api/auth. Set / for root. |
secret |
Only if BETTER_AUTH_SECRET not set |
database |
Required for most features. See adapters docs. |
secondaryStorage |
Redis/KV for sessions & rate limits |
emailAndPassword |
{ enabled: true } to activate |
socialProviders |
{ google: { clientId, clientSecret }, ... } |
plugins |
Array of plugins |
trustedOrigins |
CSRF whitelist |
Database
Direct connections: Pass pg.Pool, mysql2 pool, better-sqlite3, or bun:sqlite instance.
ORM adapters: Import from better-auth/adapters/drizzle, better-auth/adapters/prisma, better-auth/adapters/mongodb.
Critical: Better Auth uses adapter model names, NOT underlying table names. If Prisma model is User mapping to table users, use modelName: "user" (Prisma reference), not "users".
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.
- 10d ago First seen · 175 lines · 61 tokens per session scan A c62acc0464f8
better-auth-best-practices is a skill published in the GitHub repository latitude-dev/latitude-llm (4,632 stars, last pushed yesterday), licensed MIT. It adds 61 tokens to every session and 1,675 once invoked, about $0.0003 per session on Opus 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.
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