Codex

codex --version && [ -n "$SAMBANOVA_API_KEY" ] && echo "SambaNova OK"

export OPENAI_API_KEY="sk-…your-key-here…"
printenv OPENAI_API_KEY | codex login --with-api-key

codex login status   # or: codex doctor

[model_providers.sambanova]
name = "SambaNova"
base_url = "https://api.sambanova.ai/v1"
env_key = "SAMBANOVA_API_KEY"
wire_api = "responses"

# --- frontier planner (default OpenAI provider) ---
[profiles.plan]
model_provider = "openai"
model = "gpt-5"
approval_policy = "on-request"
sandbox_mode = "workspace-write"

# --- SambaNova planner ---
[profiles.plan-sn]
model_provider = "sambanova"
model = "gpt-oss-120b"
approval_policy = "on-request"
sandbox_mode = "workspace-write"

# --- SambaNova executor ---
[profiles.execute-sn]
model_provider = "sambanova"
model = "MiniMax-M2.7"
approval_policy = "on-request"
sandbox_mode = "workspace-write"

mkdir -p ~/sambanova-codex-demo && cd ~/sambanova-codex-demo

codex --profile execute-sn "Create a minimalist, pet-friendly 'hello world' landing page in this directory. One index.html, one style.css, no JS frameworks. Soft pastel palette, a friendly paw-print emoji, a short tagline ('Hello, friend'), and a single call-to-action button. Keep it under 80 lines of HTML+CSS combined. Open the file when done so I can preview it."

open index.html

codex --profile plan "Read index.html and style.css in this directory. Write PLAN.md describing how to extend this landing page into a 'pet adoption finder' demo:
- A gallery of 6 placeholder pet cards (name, species, one-line bio) in CSS grid
- A search input that filters cards by name (vanilla JS, no frameworks)
- A dark-mode toggle that persists in localStorage

Include exact file layout, the JS event handlers needed, and a verification checklist a human can run in the browser. Don't modify any code yet."

codex --profile execute-sn "Read PLAN.md and execute every step. After each step, list which acceptance criteria from the plan are now satisfied. Open index.html at the end so I can verify in the browser."

open index.html

export CONTEXT7_API_KEY=ctx7sk-…

[mcp_servers.context7]
command = "npx"
args = ["-y", "@upstash/context7-mcp"]
env = { "CONTEXT7_API_KEY" = "${CONTEXT7_API_KEY}" }

codex --profile plan "List the tools you can call from the context7 MCP server."

codex --profile plan "Use the context7 MCP server to look up current docs for the 'date-fns' library, specifically formatDistanceToNow with the addSuffix option, and how to load date-fns in a plain browser page via its UMD CDN build (the dateFns global) vs ESM named imports. Then update PLAN.md with a section 'Phase 2: relative date labels' describing how to give each pet card a fixed data-added ISO date and render an 'Added X days ago' label from it on load. Use the up-to-date API from Context7, not what you remember. Quote the exact <script> CDN tag, the global function call, and addSuffix usage verbatim from the docs, and include a verification step."

codex --profile execute-sn "Read PLAN.md 'Phase 2' and execute it. After loading, open index.html and confirm each card shows an 'Added X days ago' label."

open index.html