openclaw/docs/plugins/sdk-runtime.md

summary, title, sidebarTitle, read_when

summary	title	sidebarTitle	read_when
api.runtime -- the injected runtime helpers available to plugins	Plugin runtime helpers	Runtime helpers	You need to call core helpers from a plugin (TTS, STT, image gen, web search, subagent, nodes) You want to understand what api.runtime exposes You are accessing config, agent, or media helpers from plugin code

Reference for the api.runtime object injected into every plugin during registration. Use these helpers instead of importing host internals directly.

Step-by-step guide that uses these helpers in context for channel plugins. Step-by-step guide that uses these helpers in context for provider plugins.

register(api) {
  const runtime = api.runtime;
}

Runtime namespaces

Agent identity, directories, and session management.

```typescript
// Resolve the agent's working directory
const agentDir = api.runtime.agent.resolveAgentDir(cfg);

// Resolve agent workspace
const workspaceDir = api.runtime.agent.resolveAgentWorkspaceDir(cfg);

// Get agent identity
const identity = api.runtime.agent.resolveAgentIdentity(cfg);

// Get default thinking level
const thinking = api.runtime.agent.resolveThinkingDefault(cfg, provider, model);

// Get agent timeout
const timeoutMs = api.runtime.agent.resolveAgentTimeoutMs(cfg);

// Ensure workspace exists
await api.runtime.agent.ensureAgentWorkspace(cfg);

// Run an embedded agent turn
const agentDir = api.runtime.agent.resolveAgentDir(cfg);
const result = await api.runtime.agent.runEmbeddedAgent({
  sessionId: "my-plugin:task-1",
  runId: crypto.randomUUID(),
  sessionFile: path.join(agentDir, "sessions", "my-plugin-task-1.jsonl"),
  workspaceDir: api.runtime.agent.resolveAgentWorkspaceDir(cfg),
  prompt: "Summarize the latest changes",
  timeoutMs: api.runtime.agent.resolveAgentTimeoutMs(cfg),
});
```

`runEmbeddedAgent(...)` is the neutral helper for starting a normal OpenClaw agent turn from plugin code. It uses the same provider/model resolution and agent-harness selection as channel-triggered replies.

`runEmbeddedPiAgent(...)` remains as a compatibility alias.

**Session store helpers** are under `api.runtime.agent.session`:

```typescript
const storePath = api.runtime.agent.session.resolveStorePath(cfg);
const store = api.runtime.agent.session.loadSessionStore(cfg);
await api.runtime.agent.session.saveSessionStore(cfg, store);
const filePath = api.runtime.agent.session.resolveSessionFilePath(cfg, sessionId);
```

Default model and provider constants:

```typescript
const model = api.runtime.agent.defaults.model; // e.g. "anthropic/claude-sonnet-4-6"
const provider = api.runtime.agent.defaults.provider; // e.g. "anthropic"
```

Launch and manage background subagent runs.

```typescript
// Start a subagent run
const { runId } = await api.runtime.subagent.run({
  sessionKey: "agent:main:subagent:search-helper",
  message: "Expand this query into focused follow-up searches.",
  provider: "openai", // optional override
  model: "gpt-4.1-mini", // optional override
  deliver: false,
});

// Wait for completion
const result = await api.runtime.subagent.waitForRun({ runId, timeoutMs: 30000 });

// Read session messages
const { messages } = await api.runtime.subagent.getSessionMessages({
  sessionKey: "agent:main:subagent:search-helper",
  limit: 10,
});

// Delete a session
await api.runtime.subagent.deleteSession({
  sessionKey: "agent:main:subagent:search-helper",
});
```

<Warning>
Model overrides (`provider`/`model`) require operator opt-in via `plugins.entries.<id>.subagent.allowModelOverride: true` in config. Untrusted plugins can still run subagents, but override requests are rejected.
</Warning>

List connected nodes and invoke a node-host command from Gateway-loaded plugin code or from plugin CLI commands. Use this when a plugin owns local work on a paired device, for example a browser or audio bridge on another Mac.

```typescript
const { nodes } = await api.runtime.nodes.list({ connected: true });

const result = await api.runtime.nodes.invoke({
  nodeId: "mac-studio",
  command: "my-plugin.command",
  params: { action: "start" },
  timeoutMs: 30000,
});
```

Inside the Gateway this runtime is in-process. In plugin CLI commands it calls the configured Gateway over RPC, so commands such as `openclaw googlemeet recover-tab` can inspect paired nodes from the terminal. Node commands still go through normal Gateway node pairing, command allowlists, and node-local command handling.

Bind a Task Flow runtime to an existing OpenClaw session key or trusted tool context, then create and manage Task Flows without passing an owner on every call.

```typescript
const taskFlow = api.runtime.taskFlow.fromToolContext(ctx);

const created = taskFlow.createManaged({
  controllerId: "my-plugin/review-batch",
  goal: "Review new pull requests",
});

const child = taskFlow.runTask({
  flowId: created.flowId,
  runtime: "acp",
  childSessionKey: "agent:main:subagent:reviewer",
  task: "Review PR #123",
  status: "running",
  startedAt: Date.now(),
});

const waiting = taskFlow.setWaiting({
  flowId: created.flowId,
  expectedRevision: created.revision,
  currentStep: "await-human-reply",
  waitJson: { kind: "reply", channel: "telegram" },
});
```

Use `bindSession({ sessionKey, requesterOrigin })` when you already have a trusted OpenClaw session key from your own binding layer. Do not bind from raw user input.

Text-to-speech synthesis.

```typescript
// Standard TTS
const clip = await api.runtime.tts.textToSpeech({
  text: "Hello from OpenClaw",
  cfg: api.config,
});

// Telephony-optimized TTS
const telephonyClip = await api.runtime.tts.textToSpeechTelephony({
  text: "Hello from OpenClaw",
  cfg: api.config,
});

// List available voices
const voices = await api.runtime.tts.listVoices({
  provider: "elevenlabs",
  cfg: api.config,
});
```

Uses core `messages.tts` configuration and provider selection. Returns PCM audio buffer + sample rate.

Image, audio, and video analysis.

```typescript
// Describe an image
const image = await api.runtime.mediaUnderstanding.describeImageFile({
  filePath: "/tmp/inbound-photo.jpg",
  cfg: api.config,
  agentDir: "/tmp/agent",
});

// Transcribe audio
const { text } = await api.runtime.mediaUnderstanding.transcribeAudioFile({
  filePath: "/tmp/inbound-audio.ogg",
  cfg: api.config,
  mime: "audio/ogg", // optional, for when MIME cannot be inferred
});

// Describe a video
const video = await api.runtime.mediaUnderstanding.describeVideoFile({
  filePath: "/tmp/inbound-video.mp4",
  cfg: api.config,
});

// Generic file analysis
const result = await api.runtime.mediaUnderstanding.runFile({
  filePath: "/tmp/inbound-file.pdf",
  cfg: api.config,
});
```

Returns `{ text: undefined }` when no output is produced (e.g. skipped input).

<Info>
`api.runtime.stt.transcribeAudioFile(...)` remains as a compatibility alias for `api.runtime.mediaUnderstanding.transcribeAudioFile(...)`.
</Info>

Image generation.

```typescript
const result = await api.runtime.imageGeneration.generate({
  prompt: "A robot painting a sunset",
  cfg: api.config,
});

const providers = api.runtime.imageGeneration.listProviders({ cfg: api.config });
```

Web search.

```typescript
const providers = api.runtime.webSearch.listProviders({ config: api.config });

const result = await api.runtime.webSearch.search({
  config: api.config,
  args: { query: "OpenClaw plugin SDK", count: 5 },
});
```

Low-level media utilities.

```typescript
const webMedia = await api.runtime.media.loadWebMedia(url);
const mime = await api.runtime.media.detectMime(buffer);
const kind = api.runtime.media.mediaKindFromMime("image/jpeg"); // "image"
const isVoice = api.runtime.media.isVoiceCompatibleAudio(filePath);
const metadata = await api.runtime.media.getImageMetadata(filePath);
const resized = await api.runtime.media.resizeToJpeg(buffer, { maxWidth: 800 });
const terminalQr = await api.runtime.media.renderQrTerminal("https://openclaw.ai");
const pngQr = await api.runtime.media.renderQrPngBase64("https://openclaw.ai", {
  scale: 6, // 1-12
  marginModules: 4, // 0-16
});
const pngQrDataUrl = await api.runtime.media.renderQrPngDataUrl("https://openclaw.ai");
const tmpRoot = resolvePreferredOpenClawTmpDir();
const pngQrFile = await api.runtime.media.writeQrPngTempFile("https://openclaw.ai", {
  tmpRoot,
  dirPrefix: "my-plugin-qr-",
  fileName: "qr.png",
});
```

Config load and write.

```typescript
const cfg = await api.runtime.config.loadConfig();
await api.runtime.config.writeConfigFile(cfg);
```

System-level utilities.

```typescript
await api.runtime.system.enqueueSystemEvent(event);
api.runtime.system.requestHeartbeatNow();
const output = await api.runtime.system.runCommandWithTimeout(cmd, args, opts);
const hint = api.runtime.system.formatNativeDependencyHint(pkg);
```

Event subscriptions.

```typescript
api.runtime.events.onAgentEvent((event) => {
  /* ... */
});
api.runtime.events.onSessionTranscriptUpdate((update) => {
  /* ... */
});
```

Logging.

```typescript
const verbose = api.runtime.logging.shouldLogVerbose();
const childLogger = api.runtime.logging.getChildLogger({ plugin: "my-plugin" }, { level: "debug" });
```

Model and provider auth resolution.

```typescript
const auth = await api.runtime.modelAuth.getApiKeyForModel({ model, cfg });
const providerAuth = await api.runtime.modelAuth.resolveApiKeyForProvider({
  provider: "openai",
  cfg,
});
```

State directory resolution.

```typescript
const stateDir = api.runtime.state.resolveStateDir();
```

Memory tool factories and CLI.

```typescript
const getTool = api.runtime.tools.createMemoryGetTool(/* ... */);
const searchTool = api.runtime.tools.createMemorySearchTool(/* ... */);
api.runtime.tools.registerMemoryCli(/* ... */);
```

Channel-specific runtime helpers (available when a channel plugin is loaded).

`api.runtime.channel.mentions` is the shared inbound mention-policy surface for bundled channel plugins that use runtime injection:

```typescript
const mentionMatch = api.runtime.channel.mentions.matchesMentionWithExplicit(text, {
  mentionRegexes,
  mentionPatterns,
});

const decision = api.runtime.channel.mentions.resolveInboundMentionDecision({
  facts: {
    canDetectMention: true,
    wasMentioned: mentionMatch.matched,
    implicitMentionKinds: api.runtime.channel.mentions.implicitMentionKindWhen(
      "reply_to_bot",
      isReplyToBot,
    ),
  },
  policy: {
    isGroup,
    requireMention,
    allowTextCommands,
    hasControlCommand,
    commandAuthorized,
  },
});
```

Available mention helpers:

- `buildMentionRegexes`
- `matchesMentionPatterns`
- `matchesMentionWithExplicit`
- `implicitMentionKindWhen`
- `resolveInboundMentionDecision`

`api.runtime.channel.mentions` intentionally does not expose the older `resolveMentionGating*` compatibility helpers. Prefer the normalized `{ facts, policy }` path.

Storing runtime references

Use createPluginRuntimeStore to store the runtime reference for use outside the register callback:

```typescript import { createPluginRuntimeStore } from "openclaw/plugin-sdk/runtime-store"; import type { PluginRuntime } from "openclaw/plugin-sdk/runtime-store";

const store = createPluginRuntimeStore<PluginRuntime>({
  pluginId: "my-plugin",
  errorMessage: "my-plugin runtime not initialized",
});
```

```typescript export default defineChannelPluginEntry({ id: "my-plugin", name: "My Plugin", description: "Example", plugin: myPlugin, setRuntime: store.setRuntime, }); ``` ```typescript export function getRuntime() { return store.getRuntime(); // throws if not initialized }

export function tryGetRuntime() {
  return store.tryGetRuntime(); // returns null if not initialized
}
```

Prefer `pluginId` for the runtime-store identity. The lower-level `key` form is for uncommon cases where one plugin intentionally needs more than one runtime slot.

Other top-level api fields

Beyond api.runtime, the API object also provides:

Plugin id. Plugin display name. Current config snapshot (active in-memory runtime snapshot when available). Plugin-specific config from `plugins.entries..config`. Scoped logger (`debug`, `info`, `warn`, `error`). Current load mode; `"setup-runtime"` is the lightweight pre-full-entry startup/setup window. Resolve a path relative to the plugin root.

Related

• Plugin internals — capability model and registry
• SDK entry points — definePluginEntry options
• SDK overview — subpath reference