What is invite-with-password?

A workflow for inviting people into an app with a custom sign-up and password setup experience. Users open an invitation link, choose their first password inside the app, and then sign in with it.

Use it for branded client portals and other apps that invite users and need them to create their first password within the app. It covers first-time password setup, not password resets.

It prevents invitees from being sent to a separate platform login page or a password-reset email for an account they have not used yet.

How fusebase-dev/fusebase-flow configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to fusebase-dev/fusebase-flow. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/fusebase-dev/fusebase-flow/main/.agents/skills/invite-with-password/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/fusebase-dev/fusebase-flow

Made for: Claude Code.

Or install fusebase-flow, the plugin that ships this one along with the rest of its 56 skills, 8 commands, 4 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/fusebase-dev/fusebase-flow/invite-with-password/github.svg)](https://agentmods.dev/skills/fusebase-dev/fusebase-flow/invite-with-password)

Your own site

<a href="https://agentmods.dev/skills/fusebase-dev/fusebase-flow/invite-with-password"><img src="https://agentmods.dev/badge/skills/fusebase-dev/fusebase-flow/invite-with-password/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/fusebase-dev/fusebase-flow/invite-with-password"><img src="https://agentmods.dev/badge/skills/fusebase-dev/fusebase-flow/invite-with-password.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 106 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,279 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00106	$0.01279
Opus 5.5	$0.00042	$0.00512
Sonnet 5.5	$0.00021	$0.00256
Haiku 4.5	$0.00011	$0.00128

Measured 2mo ago against content hash d8c5de17dea0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

invite-with-password 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 2mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

invite-with-password — 100% identical, 29 lines differ

.agents/skills/invite-with-password/SKILL.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Invite With Password

When to use this

The app owns its account UI: a custom login form, a custom onboarding screen, its own password setup and reset — the user never leaves the app and never sees a Fusebase auth page. Typical asks: "invite my clients into the portal app", "our own branded sign-in", "let them pick a password when they accept the invite".

Without this, an invited user has no password they know, so the only way in is the platform's "Trying to reset your password?" email — nonsense for somebody who never registered, and it drops them onto a platform page in the middle of your onboarding. setFusebaseInitialPassword is what makes an app-owned form possible: the invitee sets their first password inside the app.

The reset half of app-owned auth is a different op: requestFusebaseRestoreKey mints a restore key without sending the platform email, so the app can send its own branded reset mail — see fusebase-gate/references/fusebase-auth.md § Password Restore. This skill covers the first password only.

Flow

Invite → invitee opens the app through the magic link → app shows a Create your password form → the account signs in with email + password from then on. No platform email beyond the invite itself.

Both pre-provisioning paths — addOrgUser (orgRole: 'client', autoConfirmClientInvite: true) and createAppMagicLink (addToAccessPrincipals: true) — create an account holding a random password the user never learns, which is why the invitee needs setFusebaseInitialPassword to get one they know.

Invite — app backend, process.env.FBS_FEATURE_TOKEN: addOrgUser or createAppMagicLink.
Open — invitee clicks the link, the platform activates it, the app host gets the invitee's fbsfeaturetoken. Do the mandatory magic-link exchange first (fusebase-gate/references/fusebase-auth.md).
Detect — SPA reads needsInitialPassword from /auth/context. true = this account has never had a password → render the password form. Absent/false → do not offer it.
Set — app backend forwards the invitee's own token to Gate. FBS_FEATURE_TOKEN gets 403.
Sign in right away — a 200 mints no session and drops every existing session of the account, including the magic-link one, so log the user back in with the password from the same form.

Read the full file on GitHub · 82 lines

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.

2mo ago First seen · 82 lines · 106 tokens per session scan A d8c5de17dea0

Subscribe to this mod's changes

invite-with-password is a skill published in the GitHub repository fusebase-dev/fusebase-flow (9 stars, last pushed 13d ago), licensed MIT. It adds 106 tokens to every session and 1,279 once invoked, about $0.0004 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 2026-08-31.

Backend and APIs Claude Code Security ai-coding-assistant codex cursor fusebase github-copilot

invite-with-password next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
invite-with-passwordfusebase-dev/fusebase-flow	Skill	9	13d ago	MIT	A	106	Claude Code
adobe-express-cors-and-backendSandgrouse/adobe-express-dev-skill	Skill	9	2mo ago	none	A	92	Claude Code, Codex
adobe-express-oauth-authenticationSandgrouse/adobe-express-dev-skill	Skill	9	2mo ago	none	A	50	Claude Code, Codex
lov-optimize-tauri-backendlovstudio/skills	Skill	72	yesterday	MIT	A	71	Claude Code
lov-cli-creatorlovstudio/skills	Skill	72	yesterday	MIT	A	58	Claude Code
lov-api-creatorlovstudio/skills	Skill	72	yesterday	MIT	A	75	Claude Code
lov-cli2anythinglovstudio/skills	Skill	72	yesterday	MIT	A	55	Claude Code

fusebase-flow: Skill for Claude Code