How do I use Iron Bridge Construction MCP Equipment Safety Server?

Q: How do I use Iron Bridge Construction MCP Equipment Safety Server?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Iron Bridge Construction MCP Equipment Safety Server Check the certification status of worker ID 447." That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

Iron Bridge Construction MCP Equipment Safety Server

by mo7-s3d690

Overview Schema Related Servers Score Discussions

Python

Hybrid

Iron Bridge Construction — MCP Equipment Safety Server

Company & Problem

Iron Bridge Construction manages heavy equipment (cranes, excavators, scaffolding) across multiple job sites.
Before this system, site workers used paper checklists. Nothing stopped an uncertified operator from taking a crane, and nothing forced a human supervisor sign-off when the work was near power lines.

The fix: an MCP server that gives an LLM scoped, safe access to equipment data. The model never talks to the database directly. Every write that carries real risk is gated by capability checks, role changes, elicitation, and sampling.

Related MCP server: MCP Airlock

Protocol Concerns Mapping

#	Concern	How it appears in this system
1	Capability negotiation	Server checks `ctx.session.check_client_capability(...)` for elicitation+sampling before attempting either, inside `request_equipment`'s high-risk branch — not just via try/except after the fact. The demo client only gets this far because it registers real `sampling_callback` + `elicitation_callback` on `ClientSession`.
2	Notifications	Worker starts with read-only tools; `approve_equipment_request` is not registered at all. After `authenticate_supervisor`, the server calls `mcp.add_tool(...)` to register it for the first time, then pushes `tools/list_changed`. The tool set genuinely changes, not just the notification.
3	Elicitation	`request_equipment` for high-risk items (crane / near power lines) pauses mid-call and asks a human supervisor for explicit confirmation.
4	Resources	Safety policies (`lifting-safety`, `electrical-proximity`) are exposed as resources, not tools.
5	Prompts	Reusable template `prepare-equipment-receipt` that takes `{request_id}`.
6	Sampling	Before final approval of a high-risk request the server asks the client's model to draft a short risk summary; result is stored in audit log.
7	Progress tracking	`generate_site_compliance_report` walks every request and reports 25/50/75/100 %.
8	Defensive tool design	Strict JSON Schema (`additionalProperties: false`), server-side `jsonschema` validation, parameterized SQL, and handler-level authorization.

Transport

Development: stdio (default).
Demo / multi-site: Streamable HTTP (MCP_TRANSPORT=streamable-http).

Commit history shows the transition from stdio-only to HTTP support.

Quick Start

python -m venv .venv
source .venv/bin/activate   # or .venv\Scripts\Activate.ps1 on Windows
pip install -r requirements.txt
cp .env.example .env        # set SUPERVISOR_PIN; ANTHROPIC_API_KEY is optional
python db/init_db.py
python agent/client.py      # starts stdio server automatically

mcp is pinned to 1.29.0 in requirements.txt — mcp>=1.1.0 would let a fresh install pull mcp==2.0.0, which removed the fastmcp module this server is built on.

HTTP mode:

export MCP_TRANSPORT=streamable-http
export MCP_HOST=127.0.0.1
export MCP_PORT=8000
python -m mcp_server.server
# endpoint: http://127.0.0.1:8000/mcp

Tool Comparison

Tool	Read/Write	Needs elicitation?	Needs sampling?	Notes
`check_worker_certification`	read	no	no	always available
`get_equipment_status`	read	no	no	always available
`request_equipment`	write	yes if high-risk	yes if high-risk	creates PENDING request
`authenticate_supervisor`	write (session)	no	no	triggers `tools/list_changed`
`approve_equipment_request`	write	no	no	only after supervisor auth
`generate_site_compliance_report`	read (report)	no	no	progress updates

If a client connects without elicitation or sampling capability, high-risk requests return NOT_SUBMITTED and nothing is written to the database.

Folder Layout

db/                 schema, seed, ERD, init script
mcp_server/         server, schemas, service layer, database helpers
agent/              demo client that performs the full handshake
docs/               progressive code parts for team commits
issues/             ready-to-paste GitHub Issue bodies (one per concern)

Team Workflow (4 sequential parts per concern)

See docs/ and issues/. Each concern is an independent GitHub Issue.
Code for each concern is delivered in 4 progressive commits so every teammate has a visible contribution.

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maintenance

How are these scores calculated?

Maintenance

–Maintainers

–Response time

–Release cycle

–Releases (12mo)

Commit activity

Resources

GitHub Repository

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