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 chrischall/ofw-mcp --skill ofw-fpxgit clone --depth 1 https://github.com/chrischall/ofw-mcpWrote 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/chrischall/ofw-mcp/ofw-fpx)<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.
<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>- NVIDIA SkillSpector pass
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 | $0.00094 | $0.01236 |
| Opus 5 | $0.00047 | $0.00618 |
| Sonnet 5 | $0.00019 | $0.00247 |
| Haiku 4.5 | $0.00009 | $0.00124 |
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 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 wall —
ofw-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):
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.
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.
- 12d ago First seen · 107 lines · 94 tokens per session scan A 11781fb9920f
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.
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