opencode-status-indicator

A TUI plugin for OpenCode v2 that shows, inline in the prompt footer, whether the active request is still prefilling or already decoding — Claude-Code style:

↑ processing 1.2s
↓ generating 340ms

• ↑ processing — the request was dispatched but the provider has not started emitting tokens yet.
• ↓ generating — the provider is streaming tokens back.
• Hidden when the session is idle, while tools run, and while a failed attempt is backing off before its scheduled retry.

Screen.Recording.2026-10-04.at.22.02.56.mov

Install

Add the package name to the plugins array in ~/.config/opencode/cli.json:

{
  "plugins": [
    "opencode-status-indicator"
  ]
}

OpenCode resolves and loads the plugin's tui entrypoint itself — there is nothing to install manually. Restart OpenCode after editing the config.

You can also add it from the TUI via the command palette (plugins.list).

How it works

It listens to the v2 session event stream and tracks a phase per sessionID:

Signal	Phase
session.execution.started, session.step.started, session.compaction.started	prefill
session.step.ended (a following step's request is dispatched immediately, with no start event)	prefill
session.text.started, session.reasoning.started, session.tool.input.started	decode
session.text.delta, session.reasoning.delta, session.tool.input.delta (extend only — never open a phase)	decode
session.tool.called (tool execution begins), session.retry.scheduled (backoff — hidden until its scheduled time, then prefill), session.step.failed, session.execution.{succeeded,failed,interrupted}, session.idle	clear

Deltas are batched by the host, so a late flush after a failure or tool call must not re-open generating; only unbatched *.started events open the decode phase. During a retry backoff the indicator is hidden, and it re-arms prefill at the scheduled retry time so the next attempt's in-flight window is visible.

Elapsed time is derived from each event's created timestamp (host clock), not wall time, so batching does not skew it. The UI is registered as an append to the prompt.footer.status slot.

Build

bun install
bun run build     # emits dist/tui.mjs

Requires Bun for the build. It uses OpenTUI's first-party Solid transform (@opentui/solid/bun-plugin, a wrapper over babel-preset-solid with generate: "universal", moduleName: "@opentui/solid"). Runtime dependencies (@opentui/solid, solid-js, @opencode/plugin/tui) are supplied by the OpenCode host and are marked external.