What is ioffice-mcp CLAUDE.md?

Project instructions for ioffice-mcp, an MCP server that connects Claude to iOffice workplace and facility-management APIs. It exposes tools for buildings, floors, spaces, reservations, and visitor check-ins.

Use them when building, testing, running, or extending the server and its workplace-management tools.

They explain how the server is built, how its tools are named, and which environment settings are needed to run it.

How chrischall/ioffice-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to chrischall/ioffice-mcp. 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/chrischall/ioffice-mcp/main/CLAUDE.md

Clone the repo

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

Made for: Claude Code.

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/instructions/chrischall/ioffice-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/chrischall/ioffice-mcp/claude-md)

Your own site

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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

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Per session 2,452 This file is loaded in full into every session.

When invoked 2,452 The same file — it is already loaded in full.

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	$0.02452	$0.02452
Opus 5.5	$0.00981	$0.00981
Sonnet 5.5	$0.00490	$0.00490
Haiku 4.5	$0.00245	$0.00245

Measured yesterday against content hash 9366387c23f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ioffice-mcp CLAUDE.md 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 yesterday.

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.

CLAUDE.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ioffice-mcp

MCP server exposing iOffice workspace/facility management APIs to Claude. Uses stdio transport.

Commands

npm run build            # tsc + esbuild bundle → dist/index.js + dist/bundle.js
npm test                 # Check formatting, typecheck, then run tests with coverage (CI runs this; 100% thresholds enforced)
npm run test:watch       # Watch mode
npm run test:coverage    # Coverage report (100% thresholds enforced)
npm run dev              # node --env-file=.env dist/index.js (requires built dist)

Run locally (requires built dist):

IOFFICE_HOST=tenant.ioffice.com IOFFICE_TOKEN=xxx node dist/index.js

Tool naming

All tools are prefixed io_ (e.g. io_list_buildings, io_create_reservation, io_checkin_visitor).

Architecture

src/
  index.ts          # MCP server entry — runMcp() from @chrischall/mcp-utils, registers all tool modules, stdio transport
  client.ts         # IOfficeClient (thin wrapper over createApiClient from @chrischall/mcp-utils) + re-exported buildQueryString/buildOptionalBody + local optionalBody helper
  view.ts           # the compact/full rungs + untrusted-data envelope every read answers in
  brief.ts          # view: "brief" for the two canonical reads (one line per item, `-- ` note lines)
  tools/
    _hints.ts       # _meta.mint context-group hints (group "work"; tests/hints.test.ts holds the rules)
    buildings.ts    # io_{list,get,create,update,delete}_building
    floors.ts       # io_{list,get,create,update,delete}_floor
    spaces.ts       # io_{list,get,create,update,delete}_space
    users.ts        # io_{list,get,create,update,delete}_user
    reservations.ts # io_{list,get,create,update,delete,checkin,checkout}_reservation
    visitors.ts     # io_{list,get,create,update,checkin,checkout}_visitor
    maintenance.ts  # io_{list,get,create,update,accept,start,complete,archive}_maintenance_request
    mail.ts         # io_{list,get,create,deliver,return}_mail
    moves.ts        # io_{list,get,create,update,approve,cancel}_move

Read the full file on GitHub · 140 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.

yesterday Changed · +3 lines · +75 tokens per session 9366387c23f5
28d ago Changed · +29 tokens per session 6f8a33f13d98
1mo ago Changed · +53 tokens per session 29d822dcd91d
1mo ago Changed · +1 lines · +143 tokens per session 0d5cb6f1b235
1mo ago Changed · +7 tokens per session 0e66b0a35ec5
2mo ago First seen · 136 lines · 2,145 tokens per session scan A 6c72a923edf4

Subscribe to this mod's changes

ioffice-mcp CLAUDE.md is an instructions file published in the GitHub repository chrischall/ioffice-mcp (1 stars, last pushed 2d ago), licensed MIT. It adds 2,452 tokens to every session, about $0.0098 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

ioffice-mcp CLAUDE.md next to 6 instructions from other repositories
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ioffice-mcp: Instructions file for Claude Code