Minimal

This is the smallest practical personal setup: one provider, one key, and one model pool.

~/.config/chord/auth.yaml

anthropic:
  - "$ANTHROPIC_API_KEY"

~/.config/chord/config.yaml

providers:
  anthropic:
    type: messages
    api_url: https://api.anthropic.com/v1/messages
    models:
      claude-opus-5:
        limit:
          context: 1000000
          output: 128000
        thinking:
          type: adaptive
          effort: medium
          display: summarized
        modalities:
          input: [text, image, pdf]

model_pools:
  default:
    - anthropic/claude-opus-5

context:
  compaction:
    threshold: 0.8
desktop_notification: true
log_level: info

Use this when you want to verify provider connectivity, credentials, basic chat flow, and conversation compaction with the smallest working config.

Credentials to prepare

Set ANTHROPIC_API_KEY in your shell or replace the environment-variable reference in auth.yaml with a real key stored outside the repository.

Verify

chord doctor models --model anthropic/claude-opus-5

Common failures

• 401 / 403: the key is missing, expired, or not visible in the environment where Chord runs.
• 404 / model not found: the model name is not enabled on your Anthropic account.
• Context-limit errors: update limit.context, limit.input, and limit.output to match your provider account’s published limits.