acp-provider

# ACP providers Known agents can be discovered automatically when their CLI is installed on the host: `opencode`, `omp`, `grok`, and `hermes` appear as `acp-opencode`, `acp-omp`, `acp-grok`, and `acp-hermes-agent`. Inspect the target host's catalog with `bb provider list` and `bb provider models <provider-id>` using its environment or machine selector. Cursor project skills come from `.cursor/skills`, which can link to `.agents/skills`. BB lists these linked skills as read-only under `cursor-project`. ACP agents may reject unlisted model IDs. OpenCode requires models in its own configuration; BB discovers them there. OpenCode agents are session modes, not models selectable through BB's model field. OpenCode ACP supports the core `bb thread compact` command; Cursor ACP does not expose compatible compaction. Check the actual agent's capabilities before attempting provider-specific recovery.