Time Send

Publishable OpenCode plugin that delays provider calls until a configured local send window. It is built as an external plugin package with separate server and TUI targets.

Default behavior:

• Send window: 02:00 <= now < 09:00 local time.
• Before 02:00: wait until today's 02:00.
• From 02:00 through 08:59: send immediately.
• At or after 09:00: wait until the next local 02:00.
• Malformed JSON or invalid times fail closed before any provider call.

The wait is process-local: if OpenCode exits while waiting, the request is not durable-rescheduled.

Install

Local development config:

{
  "plugin": [
    "file:///C:/Users/Zhang/opencode-timed-send"
  ]
}

After npm view time-send@latest version succeeds, replace the local file URL with the published package name in both opencode.json and tui.json:

{
  "plugin": [
    "time-send@latest"
  ]
}

Keep the local file:///C:/Users/Zhang/opencode-timed-send entry active until the npm lookup succeeds. Switching active config to time-send@latest before publish will make OpenCode fail to load the plugin on restart.

The same package-name plugin entry is needed in opencode.json for server gating and tui.json for the TUI indicator. Do not use time-send/tui in tui.json: OpenCode installs the configured package spec first, then resolves the package's ./tui export from that installed package.

No plugin option is required. time-send looks for opencode-timed-send.json by default: it first checks the active directory OpenCode provides, then falls back to OPENCODE_CONFIG_DIR or $XDG_CONFIG_HOME/opencode, so the JSON can live next to your active OpenCode config files without being referenced from opencode.json or tui.json.

JSON Config

Create opencode-timed-send.json in the OpenCode config directory:

{
  "$schema": "C:/Users/Zhang/opencode-timed-send/schema.json",
  "enabled": true,
  "start": "01:30",
  "end": "09:30",
  "statusFile": "opencode-timed-send.status.json",
  "display": {
    "promptRight": true,
    "appBottom": true
  }
}

Fields:

• enabled: set false to bypass waiting while keeping the plugin installed.
• start: local HH:mm window start.
• end: local HH:mm window end. The window is [start,end).
• statusFile: relative to the JSON config directory, or absolute.
• display.promptRight / display.appBottom: legacy display toggles. If either is true, the TUI shows the indicator in the public sidebar_content slot.

Example waiting indicator:

01:30 in 4h 12m

Example open-window indicator:

window open until 09:30

Status UI

The TUI target uses only public OpenCode TUI plugin APIs:

• sidebar_content for a sidebar indicator alongside the built-in sidebar blocks.
• /timed-send-status for a plugin-owned status command.
• /time-send-now to release the current timed-send wait through the shared status file.

OpenCode does not currently expose a public plugin slot for replacing the built-in lower-right progress spinner or injecting custom rows into the built-in /status dialog. This plugin therefore provides a supported external-plugin indicator instead of patching OpenCode core.

Package Exports

The package exposes target-only OpenCode modules:

• time-send/server: default export { id, server }.
• time-send/tui: default export { id, tui }.
• time-send/schema.json: JSON schema for config editors.

The package root defaults to the server target for OpenCode package detection. The TUI target stays available through the ./tui export while tui.json still points at the package name.

Development

bun install
bun test
bun run typecheck
bun run build

The tests cover config parsing, malformed JSON fail-closed behavior, [02:00,09:00) window semantics, DST-safe next-start calculation, status file read/write, server chat.params gating, TUI slot/command registration, and target-only package exports.

Publish Checklist

1. Run bun test, bun run typecheck, and bun run build.
2. Verify dist/server.js, dist/tui.js, schema.json, README.md, and LICENSE are included by the files list.
3. Log in with npm login, confirm with npm whoami, then run npm publish --dry-run.
4. Publish with npm publish only after the dry run reports package time-send@0.1.4 and the expected files.
5. Verify the network package with npm view time-send@latest version, then replace the local plugin entries with time-send@latest and restart OpenCode.

GitHub Checklist

1. Initialize and commit the repository locally.
2. Create an empty GitHub repository named time-send.
3. Add the SSH remote, for example git remote add origin git@github.com:<owner>/time-send.git.
4. Push with git push -u origin main.

License

MIT. See LICENSE.