ADR 0235: Install Plugins For Detected Hosts

• Status: Accepted
• Date: 2026-10-07
• Task: CLI-402
• Authority: the maintainer requests a single all-install entry and confirms that it should cover every already-installed supported client, with Skills and MCP supplied by each Plugin.
• Supersedes only ADR 0225's unconditional all-Host selection. Its source, approval, receipt, conflict and cancellation boundaries remain unchanged.

Add qiongli install all, its existing update/upgrade equivalents, main guide choice 5 and Plugin Host choice 6/all. These entries and --target all select the supported Host CLIs found through the existing read-only executable lookup: Codex, Claude Code, DeepSeek Harness and Antigravity, in that order. Report the selected set and skipped missing CLIs before starting installation. If no client is found, return an actionable error and perform no install. Detection does not execute the clients or establish that their versions and configuration are valid.

Explicit Host lists remain strict, including 3/both for Codex and Claude. For the all preset, validate options against the full supported set before filtering; detecting only one client does not authorize a shared destination or Host-specific Hook flags. All is terminal-only and supplies no new scripted batch plan.

Pass the detected set to the existing sequential Plugin installers. Each Plugin includes Skills and Full MCP, so no extra standalone export or MCP registration is added. Keep the existing per-Host source and registration approvals and stop on a selected Host's cancellation, conflict or failure, retaining completed steps. Missing clients are skipped only during selection; subsequent failures are not ignored. The guide continues to choose or reuse each Host's source through its existing owner. It does not install client applications or choose a model.

Checks cover detection order and missing-client reporting, empty selection, strict explicit lists, incompatible/duplicate options, terminal-only behavior and cancellation without writes. Rollback removes the new entries and restores the earlier all-selection behavior without changing installed Plugins. No receipt, public App schema or per-Host registration command changes are required.