# Codex

> Cordium documentation. Canonical page: <https://octelium.com/docs/cordium/latest/examples/codex>.

Cordium does not simply provide an isolated sandbox for Codex. Every Workspace operates as an identity-aware execution environment backed by Octelium, allowing the agent to securely access authorized infrastructure resources, including APIs, databases, Kubernetes clusters, SSH targets, and internal services through policy-driven, secretless access mechanism provided by the underlying Octelium Cluster without exposing raw credentials such as API tokens, SSH private keys, passwords, or kubeconfigs inside the Workspace itself. All Workspace activity and infrastructure access are emitted via OpenTelemetry-native identity-based application-layer-aware visibility in real-time. Here is an example:

```yaml
spec:
  image:
    registry:
      url: ubuntu:24.04

  repository:
    url: https://github.com/example/payment-service

  vars:
    name: PROMPT
    value: |
      The test suite is failing.
      Analyze the repository, fix the failing tests,
      run the tests again, and create a git commit
      describing the fix.

  runtime:
    autoStop: true
    envVars:
      - key: OPENAI_API_KEY
        fromSecret: openai-api-key

      - key: OPENAI_MODEL
        value: o4-mini

      - key: GIT_AUTHOR_NAME
        value: cordium-codex

      - key: GIT_AUTHOR_EMAIL
        value: codex@example.com

    tasks:
      - name: setup
        type: ON_CREATE
        run: |
          apt-get update
          apt-get install -y git curl nodejs npm

          npm install -g @openai/codex

          npm ci

      - name: run-tests
        type: POST_START
        run: |
          npm test
        onFailure: ON_FAILURE_CONTINUE

      - name: codex-remediation
        type: POST_START
        run: |
          codex exec "${{ vars.PROMPT}}"

      - name: push-branch
        type: POST_START
        run: |
          BRANCH=codex-fix-$(date +%s)

          git checkout -b $BRANCH
          git push origin $BRANCH

  limit:
    cpu:
      millicores: 4000
    memory:
      megabytes: 8192
    storage:
      megabytes: 30000
```