ofw-fpx

ofw-fpx is a skill for Claude Code from chrischall/ofw-mcp. It costs 94 tokens per session (1,236 once invoked), scanned A, original, MIT.

A command-line method for accessing OurFamilyWizard, a co-parenting web service for messages, calendars, expenses, and journals. It captures a signed-in browser session's access token once, then uses web requests to read or change the account.

In plain words
What is it for?
Use it to read or update OurFamilyWizard messages, events, expenses, journal entries, and attachments from a shell. It can also delete supported records.
Why use it?
It avoids running the OurFamilyWizard MCP server, but its changes are real, permanent, and visible to the other co-parent.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ofw plugin — 2 skills, 2 MCP servers shipped together

Good fit Use it to read or update OurFamilyWizard messages, events, expenses, journal entries, and attachments from a shell. It can also delete supported records.

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Install with agentmods
npx agentmods add skills/chrischall/ofw-mcp/ofw-fpx
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 chrischall/ofw-mcp --skill ofw-fpx
Clone the repo
git clone --depth 1 https://github.com/chrischall/ofw-mcp

Made for: Claude Code.

Or install ofw, the plugin that ships this one along with the rest of its 2 skills, 2 MCP servers.

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 ofw-fpx

README.md
[![agentmods](https://agentmods.dev/badge/skills/chrischall/ofw-mcp/ofw-fpx/github.svg)](https://agentmods.dev/skills/chrischall/ofw-mcp/ofw-fpx)
Your own site
<a href="https://agentmods.dev/skills/chrischall/ofw-mcp/ofw-fpx"><img src="https://agentmods.dev/badge/skills/chrischall/ofw-mcp/ofw-fpx/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 ofw-fpx

Your own site · 80×15
<a href="https://agentmods.dev/skills/chrischall/ofw-mcp/ofw-fpx"><img src="https://agentmods.dev/badge/skills/chrischall/ofw-mcp/ofw-fpx.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,236 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00094 $0.01236
Opus 5 $0.00047 $0.00618
Sonnet 5 $0.00019 $0.00247
Haiku 4.5 $0.00009 $0.00124

Measured 12d ago against content hash 11781fb9920f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

ofw-fpx scanned grade A with 1 finding 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 12d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

browser bridge, then curl the REST API directly. Use when you want OFW
skills/ofw-fpx/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OurFamilyWizard via fpx + curl (no MCP)

OFW's app (ofw.ourfamilywizard.com) has no API key a script can request — the only credential is the Bearer token the web app itself mints on login and stores in localStorage["auth"] (with localStorage["tokenExpiry"] alongside). Once you have that token the API itself has no bot wallofw-mcp's own src/client.ts calls it with plain Node fetch for every request. So this skill is hybrid: fpx captures the token from a signed-in browser tab ONCE, then plain curl does every read/write from then on. fetchproxy never touches the actual API calls.

This is a shared family-court record. Every write here (send, create_event, create_expense, create_journal_entry, upload_attachment, the delete_*/bulk-delete calls) lands on the same record the MCP's OFW_WRITE_MODE gate exists to protect. There is no dry-run/confirm here — curl just does it. Treat every write like the MCP's all mode: real, permanent, and visible to your co-parent.

One-time setup

npm install -g @fetchproxy/cli                                       # provides `fpx`
fpx profile add ofw --domain ourfamilywizard.com
fpx profile declare ofw --local-storage auth --local-storage tokenExpiry
fpx pair -p ofw                                                       # prints a pair code → approve in Transporter

Requirements: the Transporter browser extension installed, with an open, signed-in ofw.ourfamilywizard.com (or www.ourfamilywizard.com) tab, and its Chrome Site access allowing ourfamilywizard.com. Pairing persists across invocations.

Capture the token (once per shell / whenever it goes stale)

LS=$(fpx local-storage auth tokenExpiry -p ofw)
TOKEN=$(jq -r '.auth' <<<"$LS")
EXPIRES=$(jq -r '.tokenExpiry' <<<"$LS")

If auth comes back empty, sign into OFW in the browser tab first — the same precondition ofw-mcp's own fetchproxy fallback documents in src/auth.ts.

Core call

Every request needs the bearer token plus OFW's two protocol headers (sent on every call, not just login):

Read the full file on GitHub · 107 lines

Files

What ships with it

1 file 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. 12d ago First seen · 107 lines · 94 tokens per session scan A 11781fb9920f

Subscribe to this mod's changes

ofw-fpx is a skill published in the GitHub repository chrischall/ofw-mcp (9 stars, last pushed yesterday), licensed MIT. It adds 94 tokens to every session and 1,236 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

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