Use the Codex app and its MCP-building skill to turn a concrete operator question into a narrow tool contract.

Build workflows operators can run and explain
Practical paths for business owners becoming operators. Start in the OpenAI ecosystem with the Codex app, create a RapidAPI-backed MCP, then use Canon image rules to make boundaries, policy, proof, and handoff visible.
- Learning paths 2 / 11 lessons
- Working surface Codex app + MCP
- Evidence Canon workflow images
- Outcome Operator-ready proof
Prompt. Create. Prove.
Performance learning is complete when the operator can run the workflow, inspect its boundary, and explain the evidence it leaves behind.
Create the MCP server, connect one RapidAPI endpoint, and keep the schema inspectable.
Use Canon image rules to show the object, boundary, policy gate, receipt, owner, and next action.
Two operator paths: create the workflow, then make it visible.
Build Your First Business MCP
One practical path: use the Codex app to turn a RapidAPI business-data endpoint into a stable local MCP server for a real operator workflow.
- 01 What Codex Uses MCP For10 min
Understand how Codex uses MCP tools and its MCP-building skill to make business workflows repeatable.
- 02 Scaffold an MCP Server20 min
Use the Codex MCP-building skill to plan a minimal TypeScript server, then scaffold it locally.
- 03 Add a Business Search Tool25 min
Connect RapidAPI Local Business Data with Zod input validation and machine-readable output.
- 04 Connect the Server to Codex15 min
Register the server in the Codex app, inspect the MCP settings, and invoke the tool from chat.
- 05 Test, Debug, Iterate25 min
Use Inspector, Codex config checks, and stderr logs to diagnose API, schema, and prompt failures.
- 06 Ship and Extend10 min
Document the tool contract, safety model, evidence loop, and next useful tools.
Make Your Workflow Visible
Use Canon image rules to turn an operator workflow into clear maps, MCP boundaries, policy gates, validation receipts, and handoff artifacts.
- 01 What a Workflow Image Must Prove10 min
Learn the Canon rule for useful images: show the object, decision state, proof, or owner.
- 02 Map Database, Automation, Judgment15 min
Turn a business workflow into three visible lanes so Codex and operators know what is data, execution, and policy.
- 03 Show the MCP Boundary15 min
Draw the edge between Codex, the MCP server, external APIs, and the human approval point.
- 04 Place Policy Gates15 min
Use run, review, stop, and escalate states to make automation limits visible before work ships.
- 05 Ship Receipts and Metadata15 min
Package the image with the claim, validation evidence, owner, refresh date, and next action.
The course is judged by artifacts, not vibes.
Input schema, output shape, API limits, and failure behavior are explicit.
Codex can find and run the server from your environment.
The object, MCP boundary, policy gate, owner, and receipt are visible.
You leave with a scoped extension instead of a vague automation roadmap.
Build the smallest useful workflow first.
Start with one Codex prompt, one endpoint, one schema, and one MCP call. Then use Canon to make the operating boundary visible enough to govern.
- Owner
- Learner / operator
- Authority
- Artifact review
- Proof
- Working MCP + workflow image
- State
- ready