A skill for searching OneHome, a private real-estate portal from CoreLogic that agents use to share property listings with buyers. It can retrieve listing details, photos, schools, saved searches, and related information.

Use it to inspect OneHome listings, search by address or MLS number, compare properties, view photos and school information, and calculate basic affordability figures.

It lets an agent look up properties from an agent-provided OneHome link or search group rather than relying on incomplete public listing results.

onehome — Skill for Claude Code by chrischall

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/onehome-mcp --skill onehome

Clone the repo

git clone --depth 1 https://github.com/chrischall/onehome-mcp

Made for: Claude Code.

Or install onehome-mcp, the plugin that ships this one along with the rest of its 2 skills, 1 MCP server.

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/chrischall/onehome-mcp/onehome/github.svg)](https://agentmods.dev/skills/chrischall/onehome-mcp/onehome)

Your own site

<a href="https://agentmods.dev/skills/chrischall/onehome-mcp/onehome"><img src="https://agentmods.dev/badge/skills/chrischall/onehome-mcp/onehome/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/chrischall/onehome-mcp/onehome"><img src="https://agentmods.dev/badge/skills/chrischall/onehome-mcp/onehome.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,632 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	$0.00060	$0.01632
Opus 5	$0.00030	$0.00816
Sonnet 5	$0.00012	$0.00326
Haiku 4.5	$0.00006	$0.00163

Measured 5d ago against content hash 9bc4138ba3d7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

onehome 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 5d 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.

skills/onehome/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OneHome MCP

OneHome is a CoreLogic product. Buyers reach it through a private magic-link URL their real-estate agent emailed (https://portal.onehome.com/.../?token=...). It's an Angular SPA backed by a single GraphQL API at services.onehome.com/graphql.

This skill drives the onehome-mcp tools (onehome_*) — all GraphQL-bound except for the local PITI / affordability calculators.

When to use

The user mentions OneHome, a portal.onehome.com URL, or a CoreLogic magic-link they got from their agent.
They ask about listings in a specific "group" their agent set up (Lake Lure, downtown condos, etc.).
They want to look up a listing by MLS number or address and the other realty MCPs returned nothing.
They want photos, school info, or to compare two OneHome listings.

If the user asks generally about a property without naming OneHome, prefer one of the public-listing MCPs (zillow / redfin / homes / compass) first.

Auth modes

The MCP picks one at startup:

ONEHOME_TOKEN (env): raw bearer JWT.
ONEHOME_MAGIC_LINK (env): full URL with ?token=. The token IS the bearer.
fetchproxy capture: capture from a signed-in portal.onehome.com tab.

Run onehome_healthcheck first to confirm auth is wired up — it returns the mode, token expiry (when known), and a one-line hint.

Workflow

Pick a group. onehome_get_groups → the curated buckets the agent shared with the buyer. Most tools take a group_id.
Search inside the group. onehome_search_properties { group_id, [saved_search_id] }. Pass a saved_search_id from onehome_get_saved_search to apply a saved filter; leave it off for the group default. onehome_get_saved_search_with_listings returns the saved search and its inflated listings in one call.
Inflate a listing. onehome_get_property { group_id, listing_id } for the full record. The listing id is an OSK like EYxOzZSAbCdEf12345; you can pass a portal URL instead and the MCP will extract it.
Photos / schools / walkability are separate calls. Use the lat/lng from onehome_get_property to drive onehome_get_schools and onehome_get_walk_score.
Compare onehome_compare_properties { group_id, targets: [...], view? } — 2 to 8 listings, concurrent fetch, per-row error capture. Don't fan out manual get_property calls when comparing.
Escape hatch. onehome_graphql { operation_name, query, variables?, view? } lets you send a raw document when you need a field the structured tools don't expose. Common operation names: GetOneHomeUser, GetListings, GetPins, ListingById, MediaListingById, GetSavedSearches, ListingSuggestionsSearch. (LocalLogic schools / walk-score are REST endpoints, not GraphQL operations — use onehome_get_schools / onehome_get_walk_score instead.)

Read the full file on GitHub · 95 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.

5d ago Changed · +42 lines 9bc4138ba3d7
10d ago First seen · 53 lines · 60 tokens per session scan A 43e818c6756c

Subscribe to this mod's changes

onehome is a skill published in the GitHub repository chrischall/onehome-mcp (1 stars, last pushed today), licensed MIT. It adds 60 tokens to every session and 1,632 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 2026-08-31.

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