CachiBot Plugin Creation

Create new plugins that expose tools to the CachiBot agent. Plugins are capability-gated, meaning they're only loaded when a bot has the corresponding capability enabled.

Architecture Overview

• Base class: CachibotPlugin extends Tukuy's TransformerPlugin
• Context: PluginContext carries config, sandbox, bot_id, tool_configs, bot_models
• Skills: Each plugin exposes tools via Tukuy's @skill decorator
• Registry: PluginManager bridges plugin skills to Prompture's ToolRegistry

Step-by-Step Process

1. Create the Plugin File

Create cachibot/plugins/<your_plugin>.py:

"""
<Description> plugin — <tool_name> tool.

<What it does and what external services it uses.>
"""

import logging

from tukuy.manifest import PluginManifest, PluginRequirements
from tukuy.skill import ConfigParam, RiskLevel, Skill, skill

from cachibot.plugins.base import CachibotPlugin, PluginContext

logger = logging.getLogger(__name__)


class YourPlugin(CachibotPlugin):
    """Provides the <tool_name> tool for <purpose>."""

    def __init__(self, ctx: PluginContext) -> None:
        super().__init__("<plugin_name>", ctx)
        self._skills_map = self._build_skills()

    @property
    def manifest(self) -> PluginManifest:
        return PluginManifest(
            name="<plugin_name>",
            display_name="<Display Name>",
            icon="<lucide-icon-name>",
            group="<group>",  # e.g. "Creative", "Utility", "Integration"
            requires=PluginRequirements(network=True),  # set True if network needed
        )

    def _build_skills(self) -> dict[str, Skill]:
        ctx = self.ctx

        @skill(
            name="<tool_name>",
            description="<Clear description of what the tool does for the LLM>",
            category="<category>",
            tags=["<tag1>", "<tag2>"],
            side_effects=False,  # True if it modifies external state
            requires_network=True,  # True if it makes network calls
            display_name="<Display Name>",
            icon="<icon>",
            risk_level=RiskLevel.MODERATE,  # SAFE, MODERATE, DANGEROUS, CRITICAL
            config_params=[
                ConfigParam(
                    name="<param_name>",
                    display_name="<Param Display Name>",
                    description="<What this config does>",
                    type="<type>",  # "string", "number", "select", "boolean"
                    default=<default_value>,
                    # For select: options=["opt1", "opt2"]
                    # For number: min=0, max=100, step=1, unit="seconds"
                ),
            ],
        )
        async def your_tool(arg1: str, arg2: str = "") -> str:
            """Tool function docstring (shown in API docs).

            Args:
                arg1: Description of arg1.
                arg2: Description of arg2. Defaults to plugin config.

            Returns:
                Human-readable result string.
            """
            # Access per-tool config
            tool_cfg = ctx.tool_configs.get("<tool_name>", {})
            effective_arg2 = arg2 or tool_cfg.get("<param_name>", "<default>")

            # Access bot model slots (if tool uses a specific model)
            model = ""
            if ctx.bot_models:
                model = ctx.bot_models.get("<slot>", "")  # "image", "audio", etc.

            try:
                # Implementation here
                result = "..."
                return result
            except Exception as exc:
                logger.error("<tool_name> failed: %s", exc, exc_info=True)
                return f"Error: <tool_name> failed: {exc}"

        return {"<tool_name>": your_tool.__skill__}

    @property
    def skills(self) -> dict[str, Skill]:
        return self._skills_map

2. Export from __init__.py

Add to cachibot/plugins/__init__.py:

from cachibot.plugins.your_plugin import YourPlugin

# Add to CACHIBOT_PLUGINS dict:
CACHIBOT_PLUGINS: dict[...] = {
    # ... existing entries ...
    "your_plugin": YourPlugin,
}

# Add to __all__:
__all__ = [
    # ... existing entries ...
    "YourPlugin",
]

3. Register in Plugin Manager

Edit cachibot/services/plugin_manager.py:

Option A — Gate under a NEW capability:

from cachibot.plugins import YourPlugin

CAPABILITY_PLUGINS: dict[str, list[PluginClass]] = {
    # ... existing mappings ...
    "yourCapability": [YourPlugin],
}

Then add the capability to the frontend types (Step 5).

Option B — Gate under an EXISTING capability:

CAPABILITY_PLUGINS: dict[str, list[PluginClass]] = {
    "webAccess": [WebPlugin, HttpPlugin, YourPlugin],  # append to existing
}

Option C — Always enabled (no capability gate):

ALWAYS_ENABLED: list[PluginClass] = [TaskPlugin, NotesPlugin, YourPlugin]

4. Add Frontend Capability (if new capability)

Edit frontend/src/types/index.ts — add to BotCapabilities:

export interface BotCapabilities {
  // ... existing capabilities ...
  yourCapability: boolean
}

5. Add Frontend Capability Toggle (if new capability)

In the bot settings view (frontend/src/components/views/SettingsView.tsx), add a toggle for the new capability so users can enable/disable it per bot.

Key Patterns

Returning Media

For tools that produce images or audio, return markdown data URIs:

# Image
return f"![Generated Image](data:image/png;base64,{base64_data})"

# Audio
return f"![Generated Audio](data:audio/mpeg;base64,{base64_data})"

The frontend's MarkdownRenderer auto-detects these and renders <img> or <audio> elements.

Config Params

Config params defined in @skill(config_params=[...]) become per-tool settings in the bot's toolConfigs. Access them via:

cfg = ctx.tool_configs.get("tool_name", {})
value = cfg.get("param_name", default_value)

Risk Levels

• SAFE — No side effects, read-only
• MODERATE — External API calls, generates content
• DANGEROUS — Writes files, executes code, sends messages
• CRITICAL — Destructive operations, shell access

Bot Model Slots

If the tool uses an AI model (image gen, audio gen, etc.), read from ctx.bot_models:

model = ctx.bot_models.get("image", "") if ctx.bot_models else ""

Available slots: default, image, audio, structured.

Checklist

• Plugin file created in cachibot/plugins/
• Plugin extends CachibotPlugin with proper __init__, manifest, _build_skills, skills
• Skills use @skill decorator with description, risk_level, config_params
• Plugin exported in cachibot/plugins/__init__.py
• Plugin registered in cachibot/services/plugin_manager.py
• If new capability: added to BotCapabilities in frontend types
• If new capability: toggle added to settings view
• Tool returns human-readable strings (not raw JSON)
• Errors caught and returned as "Error: ..." strings (never raise)