How craigomatic/worddoc-aiplugin works
This repository is a small .NET plugin service whose job is to create Word documents and append content to them. The architecture is centered around a serverless-style HTTP endpoint layer plus a document-writing helper, rather than a traditional app with UI or database.
1. Runtime / hosting model
- The presence of host.json, local.settings.json, and Program.cs strongly suggests an Azure Functions-style .NET host.
- worddoc-aiplugin.csproj defines the app as a single deployable service, likely containerless/serverless.
2. Public integration surface
- PluginEndpoint.cs is the outward-facing API boundary.
- This is the component other systems call to invoke document actions such as creating a new Word document or appending text/content.
3. Plugin metadata / contract
- Model/AIPlugin.cs likely represents the plugin definition or tool metadata exposed to an AI orchestration layer.
- It probably describes the operations the plugin supports, enabling an LLM or agent framework to discover and call them.
4. Request model boundary
- Model/AppendToDocRequest.cs captures the input contract for append operations.
- This separates transport concerns from document logic and makes the endpoint shape explicit.
5. Configuration boundary
- Model/ModelConfig.cs holds runtime settings used by the plugin and writer.
- In this repo, configuration is likely used to control document location, storage settings, or other environment-dependent values loaded from app settings.
6. Document generation core
- WordDocWriter.cs is the main internal service responsible for Word document creation and mutation.
- It is the core business logic boundary: endpoints call into it, and it handles the actual document update behavior.
7. Data flow
- A caller sends a plugin request to PluginEndpoint.
- The request is mapped into a model such as AppendToDocRequest.
- The endpoint delegates to WordDocWriter.
- The writer produces or updates the document and returns success/identity details back through the endpoint.
8. Storage / external dependency
- The README notes it works best with azblob-aiplugin, which implies this plugin is designed to pair with blob storage for reading/writing document files.
- So the document itself is probably stored externally rather than kept in memory or a local database.
9. Operational configuration
- local.settings.json is for local development environment variables.
- host.json controls host-level runtime behavior, reinforcing that this is deployed and operated as a hosted function/service.
10. System boundary summary
- This repo contains one focused service boundary: “AI-callable Word document operations.”
- Everything inside it supports that purpose: endpoint entry, request models, config, and document-writing implementation.
Main entry points: PluginEndpoint.cs Plugin endpoint · WordDocWriter.cs Word writer · Program.cs Program · AIPlugin.cs Plugin contract
Components 11
Runtime
Azure Functions-style hosting and deployment entry points.
- Program · Wires up the function host and service dependencies.
Program.cs - Host config · Function host configuration and runtime behavior.
host.json - Local settings · Local development environment variables and secrets.
local.settings.json - Project file · Single deployable .NET service definition and package references.
worddoc-aiplugin.csproj
API Surface
External invocation boundary for plugin actions.
- Plugin endpoint · Public API boundary for invoking document operations.
PluginEndpoint.cs
Contracts
Plugin metadata, request shapes, and runtime settings.
- Plugin contract · Describes the plugin surface exposed to an AI orchestrator.
Model/AIPlugin.cs - Append request · Input contract for appending content to a document.
Model/AppendToDocRequest.cs - Model config · Configuration values consumed by the plugin and writer.
Model/ModelConfig.cs
Document Core
Word document creation and append behavior.
- Word writer · Core service that creates and mutates Word documents.
WordDocWriter.cs - Blob storage · External file store used to persist document assets.
- Word document · The generated or updated document produced by the service.
Connections 12
- Program → Plugin endpoint: hosts · Bootstraps the HTTP/function entry point.
- Host config → Program: configures · Supplies host-level runtime behavior.
- Local settings → Program: env · Provides local environment settings during development.
- Project file → Program: builds · Defines the service and its dependencies.
- Plugin endpoint → Plugin contract: exposes · Publishes the plugin contract for discovery.
- Plugin endpoint → Append request: accepts · Parses append operation input.
- Plugin endpoint → Word writer: delegates · Routes document actions to the writer service.
- Word writer → Model config: reads · Uses runtime settings to control document behavior.
- Word writer → Blob storage: persists · Reads and writes document content via external storage.
- Word writer → Word document: creates · Produces or updates the Word document artifact.
- Append request → Word writer: drives · Supplies append parameters into document logic.
- Plugin contract → Plugin endpoint: describes · Maps supported operations to the callable endpoint.