Adds a Usage Limits block under the sidebar Context section.
Shows current Codex usage windows from OpenAI/Codex auth.
Shows current ZAI quota windows from ZAI Coding Plan auth.
Shows current Synthetic rolling 5-hour and weekly windows.
Shows current MiniMax Token Plan rolling 5-hour and weekly windows.
Shows current Qwen Token Plan windows from the local qwencloud CLI.
Shows current OpenCode GO rolling, weekly, and monthly windows.
Adds compact prompt-footer usage when the current session uses an OpenAI, OpenCode GO, ZAI Coding Plan, Synthetic, or MiniMax Token Plan model.
Providers are toggled from ~/.config/opencode/usage-limits.jsonc.
Reads OpenCode-connected credentials first, then falls back to explicit config/env credentials.

Install

Install globally with the OpenCode CLI:

opencode plugin oc-usage-limits-plugin -g

-g / --global installs to ~/.config/opencode/tui.json.
Without -g, installs locally to <project>/.opencode/tui.json (requires a git worktree).
--force replaces an existing pinned version.

The CLI installs the package and updates the TUI plugin config for you.

To configure it manually instead, add the plugin to ~/.config/opencode/tui.json:

{
  "$schema": "https://opencode.ai/tui.json",
  "plugin": ["oc-usage-limits-plugin"],
}

OpenCode TUI plugins are configured in tui.json, not opencode.jsonc.

Restart OpenCode after changing TUI plugin config.

Troubleshooting

Reinstall or refresh the cached plugin

If the plugin is stale, broken, or needs a clean reinstall, quit OpenCode and remove its cached package.

PowerShell:

Remove-Item -LiteralPath "$HOME\.cache\opencode\packages\oc-usage-limits-plugin@latest" -Recurse -Force

macOS/Linux:

rm -rf ~/.cache/opencode/packages/oc-usage-limits-plugin@latest

Start OpenCode again and it will reinstall the plugin from the existing tui.json entry. If the plugin is no longer configured, run the install command again:

opencode plugin oc-usage-limits-plugin -g

Dependency conflicts involving @opencode-ai/plugin usually mean OpenCode's package cache contains an older plugin API package. Update OpenCode, clear the cached plugin as above, then retry the install. This package does not publish OpenCode runtime packages as peer dependencies.
No versions available right after a release means a supply-chain cooldown policy (e.g. min-release-age) is blocking the fresh version. Wait for the cooldown window to pass, or install a previously vetted version instead.

Usage Config

Create ~/.config/opencode/usage-limits.jsonc. The same file lives at examples/usage-limits.jsonc and can be copied verbatim:

{
  "$schema": "https://raw.githubusercontent.com/mynameistito/oc-usage-limits-plugin/main/usage-limits.schema.json",
  "enabled": true,
  "refreshIntervalSeconds": 60,
  "requestTimeoutMs": 10000,
  "showErrors": true,
  "providers": {
    "codex": {
      "enabled": true,
      "label": "Codex",
    },
    "zai": {
      "enabled": true,
      "label": "ZAI",
      "apiKey": "{env:OC_ZAI_API_KEY}", // Optional fallback when OpenCode auth has no ZAI key
      "authorizationScheme": "raw",
    },
    "synthetic": {
      "enabled": true,
      "label": "Synthetic",
      "apiKey": "{env:OC_SYNTHETIC_API_KEY}", // Optional fallback when OpenCode auth has no Synthetic key
    },
    "minimax": {
      "enabled": true,
      "label": "MiniMax",
      "apiKey": "{env:OC_MINIMAX_TOKEN_PLAN_KEY}", // Optional fallback when OpenCode auth has no MiniMax key
    },
  },
}

Minimal config

If you only need Codex and ZAI with auto-discovered credentials:

{
  "$schema": "https://raw.githubusercontent.com/mynameistito/oc-usage-limits-plugin/main/usage-limits.schema.json",
  "providers": {
    "codex": { "enabled": true },
    "zai": { "enabled": true, "authorizationScheme": "raw" },
  },
}

Disabled providers are hidden:

"providers": {
  "codex": { "enabled": true },
  "zai": { "enabled": false }
}

Providers

Provider ID	Service	Env var	Auth header	Default base URL
`codex`	ChatGPT Codex usage	—	Bearer	`https://chatgpt.com/backend-api`
`zai`	Z.AI Coding Plan quota	`OC_ZAI_API_KEY`	raw / Bearer	`https://api.z.ai`
`synthetic`	Synthetic quotas	`OC_SYNTHETIC_API_KEY`	Bearer	`https://api.synthetic.new`
`minimax`	MiniMax Token Plan	`OC_MINIMAX_TOKEN_PLAN_KEY`	Bearer	`https://www.minimax.io`
`qwen`	Qwen Token Plan	`qwencloud` CLI	CLI	—
`opencode-go`	OpenCode GO usage	`OPENCODE_API_KEY`	Bearer	`https://opencode.ai/zen/go/v1`

Synthetic always uses Bearer auth and ignores authorizationScheme.

Set baseUrl on minimax to https://api.minimaxi.com when using the mainland-China region. MiniMax always uses Bearer auth and ignores authorizationScheme.

Credential Lookup

authPath and apiKey are optional overrides. Typical OpenCode users only need enabled: true; label is an optional display override. Credentials are discovered automatically from OpenCode auth and provider defaults. Set apiKey (or authPath to a standalone key file) only when auto-discovery is not enough.

Codex lookup order:

OpenCode auth at ~/.local/share/opencode/auth.json, provider openai.
Codex auth file from authPath, default ~/.codex/auth.json.

ZAI lookup order:

Config authPath, which can point at OpenCode auth JSON or a simple { "key": "..." } / { "apiKey": "..." } JSON file.
OpenCode auth at ~/.local/share/opencode/auth.json, provider zai-coding-plan.
OpenCode auth provider zai.
Config apiKey, including {env:OC_ZAI_API_KEY} references.

Synthetic lookup order:

Config authPath JSON file ({ "key": "..." } / { "apiKey": "..." } / { "synthetic": { "key": "..." } }).
OpenCode auth at ~/.local/share/opencode/auth.json, provider synthetic.
Config apiKey, including {env:OC_SYNTHETIC_API_KEY} references.

MiniMax Token Plan lookup order:

Config authPath JSON file ({ "key": "..." } / { "apiKey": "..." } / { "minimax-coding-plan": { "key": "..." } }).
OpenCode auth at ~/.local/share/opencode/auth.json, provider minimax-coding-plan, minimax, or minimax-token-plan.
Config apiKey, including {env:OC_MINIMAX_TOKEN_PLAN_KEY} references.

Display

Sidebar rows look like:

Usage Limits
codex
  5h: 42% used resets 1h 2m
  weekly: 12% used resets 3d 4h
ZAI
  tokens: 18% used resets 2h
  MCP: 6% used
Synthetic
  5h: 0% used resets 11m
  weekly: 11% used resets 7m
MiniMax
  5h: 10% used resets 2h 56m

Prompt footer shows compact usage when the current session model belongs to a supported provider:

5h: 42% used resets 1h 2m

Provider mapping:

OpenCode provider openai -> Codex usage.
OpenCode provider zai-coding-plan -> ZAI token usage.
OpenCode provider synthetic -> Synthetic usage.
OpenCode provider minimax-coding-plan -> MiniMax Token Plan usage (prompt footer); minimax is also accepted as an alias.
OpenCode provider qwen -> Qwen Token Plan usage.
OpenCode provider opencode-go -> OpenCode GO usage.

Development

bun install
bun run typecheck
bun run test
bun run check
bun run build

The package exposes a TUI entrypoint at oc-usage-limits-plugin/tui for OpenCode's package plugin loader.

Notes

The refresh interval defaults to 60 seconds.
The effective minimum refresh interval is 15 seconds.
Provider work starts in a scoped coordinator after both TUI slots are registered. Disposal interrupts the coordinator and its active provider work.
Errors are intentionally short and do not include auth tokens or response bodies.
MiniMax Token Plan returns { model_remains, base_resp }; the per-model current_interval_status and current_weekly_status are treated as 1 = in plan and 3 = not in plan, and a window is hidden when its status is 3 (the API otherwise reports a meaningless 100% remaining for a non-existent bucket).