OpenCode marks an MCP server failed when it does not come up at startup
or when a live connection drops, and never retries. A new managed plugin
reconnects those servers with a per-server backoff (1s doubling to a 30s
cap), wakes early on mcp.tools.changed, and stops on dispose. Only the
failed state is retried; disabled and auth states stay untouched.
The OPENCODE_CONFIG_CONTENT merge that agent-tool and system-prompt each
carried is now one shared helper so the three managed plugins compose.
Claude-Session: https://claude.ai/code/session_01VqV56Hez25hTxXH4ipJfzH
Add an opt-in OpenCode plugin that replaces the built-in provider behavioral prompt with a minimal identity while preserving environment, project, MCP, skill, history, and tool context.
Track the active agent per session and apply the transform only to build and plan. Keep plan/build mode reminders and permission enforcement owned by OpenCode, leave all other agents untouched, and fail safely when the expected prompt boundary is absent.
Expose the feature in Behavior settings with localized guidance, explicit Save + Reload application, settings search integration, persisted boolean validation, and managed-runtime lifecycle composition that does not load the plugin while disabled or on external OpenCode servers.
Document the runtime contract and cover plugin materialization, config preservation, build/plan selection, agent switching, unknown prompt formats, and settings sanitization.
Bohdan Triapitsyn