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Openclaw Plugin

by @pathanaawej0-dot

Build OpenClaw plugins from scratch — including the manifest, entry point, tool registration, channel plugins, provider plugins, config schema, setup wizards...

Versionv1.0.0
Downloads502
Stars1
TERMINAL
clawhub install openclaw-plugin-creator-agent-skill

📖 About This Skill


name: openclaw-plugin-creator-skill description: Build OpenClaw plugins from scratch — including the manifest, entry point, tool registration, channel plugins, provider plugins, config schema, setup wizards, runtime helpers, and publishing steps. Use this skill whenever the user wants to create, extend, debug, or publish any OpenClaw plugin, skill, or hook. version: 1.0.0 homepage: https://github.com/pathanaawej0-dot/openclaw-plugin-creation-skill metadata: clawdbot: true

OpenClaw Plugin Development — Expert Reference

🛡️ Security, Privacy & Trust

This skill is purely instructional and does not execute remote code, access external endpoints (other than documentation), or modify system files without explicit user direction. All generated code should be reviewed before execution.
  • Data Privacy: This skill does not collect or transmit user data.
  • External Calls: No hidden background network requests.
  • Trust Statement: This skill follows OpenClaw's security best practices for plugin development.
  • What can a plugin do?

    Plugins run in-process with the Gateway (via jiti, TypeScript loaded at runtime). They extend OpenClaw with:

    | Capability | Registration method | |---|---| | Messaging channel | api.registerChannel(...) | | LLM / model provider | api.registerProvider(...) | | Agent tool (LLM-callable) | api.registerTool(tool, opts?) | | Text-to-speech / STT | api.registerSpeechProvider(...) | | Image generation | api.registerImageGenerationProvider(...) | | Media understanding | api.registerMediaUnderstandingProvider(...) | | Web search | api.registerWebSearchProvider(...) | | Custom CLI command | api.registerCommand(def) | | Event hook | api.registerHook(events, handler, opts?) | | Gateway HTTP route | api.registerHttpRoute(params) | | Gateway RPC method | api.registerGatewayMethod(name, handler) | | CLI subcommand | api.registerCli(registrar, opts?) | | Background service | api.registerService(service) | | Interactive handler | api.registerInteractiveHandler(registration) | | Context engine (exclusive) | api.registerContextEngine(id, factory) | | Memory prompt section | api.registerMemoryPromptSection(builder) |

    > Treat plugins as trusted code — they run with full Gateway access.


    Plugin formats

    | Format | How it works | |---|---| | Native | openclaw.plugin.json + TypeScript module — official plugins, npm packages | | Bundle | Codex/Claude/Cursor-compatible layout (.codex-plugin/, .claude-plugin/, .cursor-plugin/) |

    This skill covers native plugins. For bundles see the Bundles docs.


    Step 1 — File structure

    my-plugin/
    ├── openclaw.plugin.json   ← REQUIRED manifest
    ├── package.json           ← npm package + openclaw metadata
    ├── index.ts               ← main entry point
    ├── setup-entry.ts         ← lightweight setup-only entry (optional, channels)
    └── src/
        ├── channel.ts         ← channel plugin object (if channel plugin)
        ├── runtime.ts         ← createPluginRuntimeStore (if needed)
        ├── tools.ts
        └── provider.test.ts
    

    Internal barrel convention:

    api.ts          ← public exports for external consumers
    runtime-api.ts  ← internal-only runtime exports
    
    Never import your own plugin through openclaw/plugin-sdk/. Route internal imports through ./api.ts.


    Step 2 — package.json

    Tool / provider plugin:

    {
      "name": "@myorg/openclaw-my-plugin",
      "version": "1.0.0",
      "type": "module",
      "openclaw": {
        "extensions": ["./index.ts"],
        "providers": ["my-provider"]
      }
    }
    

    Channel plugin:

    {
      "name": "@myorg/openclaw-my-channel",
      "version": "1.0.0",
      "type": "module",
      "openclaw": {
        "extensions": ["./index.ts"],
        "setupEntry": "./setup-entry.ts",
        "channel": {
          "id": "my-channel",
          "label": "My Channel",
          "blurb": "Short description shown in onboarding."
        },
        "startup": {
          "deferConfiguredChannelFullLoadUntilAfterListen": true
        }
      }
    }
    

    openclaw field reference:

    | Field | Type | Description | |---|---|---| | extensions | string[] | Entry point files (relative paths) | | setupEntry | string | Lightweight setup-only entry (optional) | | channel | object | Channel metadata: id, label, blurb, selectionLabel, docsPath, order, aliases | | providers | string[] | Provider ids registered by this plugin | | install | object | Install hints: npmSpec, localPath, defaultChoice | | startup | object | Startup behavior flags |


    Step 3 — openclaw.plugin.json (Manifest)

    > Every native plugin MUST have this file. OpenClaw validates config from it WITHOUT executing plugin code.

    Minimal (no config):

    {
      "id": "my-plugin",
      "configSchema": {
        "type": "object",
        "additionalProperties": false,
        "properties": {}
      }
    }
    

    Full example (provider with auth):

    {
      "id": "my-provider",
      "name": "My Provider",
      "description": "Adds My Provider LLM to OpenClaw",
      "version": "1.0.0",
      "providers": ["my-provider"],
      "providerAuthEnvVars": {
        "my-provider": ["MY_PROVIDER_API_KEY"]
      },
      "providerAuthChoices": [
        {
          "provider": "my-provider",
          "method": "api-key",
          "choiceId": "my-provider-api-key",
          "choiceLabel": "My Provider API key",
          "optionKey": "myProviderApiKey",
          "cliFlag": "--my-provider-api-key",
          "cliOption": "--my-provider-api-key ",
          "cliDescription": "My Provider API key",
          "onboardingScopes": ["text-inference"]
        }
      ],
      "uiHints": {
        "apiKey": {
          "label": "API Key",
          "placeholder": "sk-...",
          "sensitive": true,
          "help": "From your My Provider dashboard"
        }
      },
      "configSchema": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "apiKey": { "type": "string" }
        },
        "required": ["apiKey"]
      }
    }
    

    Full manifest field reference → see references/manifest.md


    Step 4 — Entry Points

    Import rules (CRITICAL)

    // ✅ ALWAYS use focused subpaths
    import { definePluginEntry } from "openclaw/plugin-sdk/plugin-entry";
    import { defineChannelPluginEntry } from "openclaw/plugin-sdk/core";
    import { createPluginRuntimeStore } from "openclaw/plugin-sdk/runtime-store";

    // ❌ NEVER use monolithic root (deprecated, will be removed) import { ... } from "openclaw/plugin-sdk";

    Full subpath reference → see references/sdk-subpaths.md

    Tool / Hook / Provider plugin (definePluginEntry)

    import { definePluginEntry, type OpenClawPluginApi } from "openclaw/plugin-sdk/plugin-entry";
    import { Type } from "@sinclair/typebox";

    export default definePluginEntry({ id: "my-plugin", name: "My Plugin", description: "Human-readable description",

    register(api: OpenClawPluginApi) { // Access plugin config (from plugins.entries.my-plugin.config) const config = api.pluginConfig as { apiKey: string };

    // Required tool — always available to LLM api.registerTool({ name: "my_tool", // must not clash with core tools description: "Does something useful", parameters: Type.Object({ input: Type.String({ description: "The input" }), count: Type.Optional(Type.Number()), }), async execute(_callId, params) { return { content: [{ type: "text", text: Result: ${params.input} }], }; }, });

    // Optional tool — user must add to tools.allow api.registerTool( { name: "advanced_tool", description: "Side-effect tool (opt-in)", parameters: Type.Object({ pipeline: Type.String() }), async execute(_callId, params) { return { content: [{ type: "text", text: params.pipeline }] }; }, }, { optional: true }, );

    // Command — runs without going through LLM api.registerCommand({ name: "my-plugin-status", description: "Show plugin status", handler: async () => ({ text: "Plugin is running" }), });

    // Event hook api.registerHook(["message.received"], async (event) => { api.logger.info(Received message: ${event.type}); }); }, });

    Channel plugin (defineChannelPluginEntry)

    import { defineChannelPluginEntry } from "openclaw/plugin-sdk/core";
    import { channelPlugin } from "./src/channel.js";
    import { setMyRuntime } from "./src/runtime.js";

    export default defineChannelPluginEntry({ id: "my-channel", name: "My Channel", description: "Connects OpenClaw to MyPlatform", plugin: channelPlugin, setRuntime: setMyRuntime,

    // registerFull: only for tools/routes that should NOT load in setup-only mode registerFull(api) { api.registerTool({ name: "my_channel_status", description: "Check channel connection", parameters: { type: "object", properties: {} }, async execute() { return { content: [{ type: "text", text: "connected" }] }; }, }); }, });

    Setup entry (channels only)

    // setup-entry.ts — lightweight, no heavy imports
    import { defineSetupPluginEntry } from "openclaw/plugin-sdk/core";
    import { channelPlugin } from "./src/channel.js";

    export default defineSetupPluginEntry(channelPlugin);

    When OpenClaw uses setupEntry: channel is disabled/unconfigured, or deferred loading is on. Must include: channel registration, HTTP routes needed before listen, gateway methods for startup. Must NOT include: CLI registrations, background services, heavy runtime imports.

    One plugin, many capabilities

    export default definePluginEntry({
      id: "my-hybrid",
      name: "My Hybrid Plugin",
      register(api) {
        api.registerProvider({ id: "my-provider", /* ... */ });
        api.registerSpeechProvider({ id: "my-speech", /* ... */ });
        api.registerTool({ name: "my_tool", /* ... */ });
        api.registerCommand({ name: "my-cmd", /* ... */ });
      },
    });
    


    Step 5 — Runtime helpers (api.runtime)

    // Read/write config
    const cfg = api.runtime.config.loadConfig();
    await api.runtime.config.writeConfigFile({ ...cfg, talk: { enabled: true } });

    // TTS (telephony) const result = await api.runtime.tts.textToSpeechTelephony({ text: "Hello from OpenClaw", cfg: api.config, }); // Returns PCM audio buffer + sample rate. Edge TTS NOT supported for telephony.

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

    // Web search const results = await api.runtime.webSearch.search({ query: "...", maxResults: 5 });

    // Spawn subagent const session = await api.runtime.subagent.spawn({ /* ... */ });

    Full runtime namespace reference → see references/runtime.md

    createPluginRuntimeStore

    For shared mutable state across module imports (the correct pattern):
    import { createPluginRuntimeStore } from "openclaw/plugin-sdk/runtime-store";

    const runtimeStore = createPluginRuntimeStore<{ client: MyPlatformClient; logger: Logger; }>("My Channel runtime not initialized");

    export const setMyRuntime = (rt: { client: MyPlatformClient; logger: Logger }) => runtimeStore.setRuntime(rt); export const getMyRuntime = () => runtimeStore.getRuntime(); // Also: tryGetRuntime(), clearRuntime()


    Step 6 — openclaw.yml config

    plugins:
      enabled: true
      allow:
        - my-plugin
      deny: []
      load:
        paths:
          - ~/Projects/my-plugin   # for dev/local plugins
      entries:
        my-plugin:
          enabled: true
          config:
            apiKey: "sk-..."
            timeout: 60

    Enable optional tools

    tools: allow: - advanced_tool # specific tool - my-plugin # all tools from plugin

    Plugin slots (exclusive categories)

    plugins: slots: memory: memory-lancedb # or "memory-core" or "none" contextEngine: my-engine # or "legacy"

    Channel config (for channel plugins)

    channels: my-channel: enabled: true token: "bot-token" allowFrom: - "user-id-1"


    Step 7 — Discovery precedence (first match wins)

    1. plugins.load.paths — explicit paths in config 2. /.openclaw// — workspace-local (disabled by default, must explicitly enable) 3. ~/.openclaw// — global user extensions 4. Bundled plugins — shipped with OpenClaw (many enabled by default)

    Conflict rule: If multiple plugins try to own the same channel/tool id, first match wins, others are skipped with a warning.


    Step 8 — CLI commands

    # Discovery
    openclaw plugins list
    openclaw plugins list --enabled --verbose
    openclaw plugins list --json
    openclaw plugins inspect 
    openclaw plugins inspect  --json
    openclaw plugins doctor

    Install

    openclaw plugins install @myorg/my-plugin # ClawHub first, npm fallback openclaw plugins install clawhub:@myorg/my-plugin # ClawHub only openclaw plugins install ./my-plugin # local path openclaw plugins install -l ./my-plugin # link (dev, no copy) openclaw plugins install --force # overwrite existing openclaw plugins install --pin # record exact npm spec openclaw plugins install --marketplace https://github.com//

    Manage

    openclaw plugins enable openclaw plugins disable openclaw plugins update openclaw plugins update --all openclaw plugins uninstall openclaw plugins uninstall --keep-files openclaw plugins registry --refresh # refresh metadata after changes

    Fix

    openclaw doctor --fix # auto-remove stale entries openclaw gateway restart # REQUIRED after any plugin change


    Step 9 — Testing

    # Run plugin tests (vitest)
    pnpm test -- extensions/my-plugin/

    With coverage

    pnpm test:coverage

    Scoped

    pnpm test -- extensions/my-plugin/src/channel.test.ts -t "resolves account"

    Low-memory mode

    OPENCLAW_TEST_PROFILE=low OPENCLAW_TEST_SERIAL_GATEWAY=1 pnpm test

    Full testing patterns → see references/testing.md


    Security rules (MUST follow)

  • Dependencies installed with npm install --ignore-scriptsno lifecycle scripts
  • Keep deps "pure JS/TS" — avoid packages with postinstall builds
  • Plugin entries must resolve inside the plugin directory (symlink escapes are rejected)
  • Non-bundled plugins without plugins.allow entry emit a startup warning
  • plugins.deny always wins over plugins.allow
  • Use optional: true for tools with side effects or extra binary requirements
  • Treat all plugin code as trusted — review before installing from unknown sources

  • Pre-submission checklist

  • [ ] package.json has "type": "module" and correct openclaw.extensions
  • [ ] openclaw.plugin.json present with valid id and configSchema (even if empty)
  • [ ] Entry uses definePluginEntry (tools/providers) or defineChannelPluginEntry (channels)
  • [ ] All imports use openclaw/plugin-sdk/ — never the root barrel
  • [ ] Internal imports go through ./api.ts or ./runtime-api.ts, not SDK self-imports
  • [ ] No scripts in dependency packages (security)
  • [ ] Optional tools marked { optional: true }
  • [ ] uiHints.sensitive: true on any API key / secret config fields
  • [ ] Gateway restarted: openclaw gateway restart
  • [ ] Tests pass: pnpm test -- extensions/my-plugin/

  • Publishing

    # Publish to npm (ClawHub auto-indexes npm)
    npm publish --access public

    Users install with:

    openclaw plugins install @myorg/my-plugin

    OpenClaw tries ClawHub first, npm fallback automatically


    Reference files (read when needed)

  • references/manifest.md — complete openclaw.plugin.json field reference
  • references/sdk-subpaths.md — all 100+ SDK import subpaths grouped by purpose
  • references/channel-plugin.md — full channel plugin walkthrough (ChannelPlugin shape, pairing, actions, setup wizard)
  • references/provider-plugin.md — full provider plugin (all 22 hooks, auth, catalog, dynamic models, multi-capability)
  • references/runtime.md — all api.runtime namespaces with examples
  • references/testing.md — unit testing patterns, mocking, contract tests