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Workflow Generator

Architecture diagram with concurrency capacity and bottleneck estimates from any codebase.

Automation & WorkflowPythonv0.3.1

workflow-generator

Scan any project and generate WORKFLOW.html — a dark-mode visual system diagram showing every component, how they talk to each other, and where your throughput ceiling actually is.

Works with Python, Node.js, Go, Java, Rust, Ruby, and mixed projects. No external dependencies for the core scanner. Vendored and generated directories (node_modules, venv, site-packages, dist, …) are never scanned, and capacity figures are clearly labeled as static-analysis estimates.

Live demo → — generated from fastapi/full-stack-fastapi-template, unmodified.

Running workflow-generator against fastapi/full-stack-fastapi-template, from pip install to the generated diagram

(real CLI output, unscripted — static screenshot if you'd rather not autoplay)

What it produces

Every generated page contains:

SectionWhat you get
Stat rowWorkers · Concurrent I/O ceiling · Semaphore limit · Rate limit · Practical throughput
Architecture diagramLayered flow: external sources → gateway → API → queues → AI → storage
Data flow cardsWrite path, read/query path, background jobs — inferred from what's detected
Concurrency tableEvery layer: model · ceiling · limiting factor
Bottleneck analysisRanked CRITICAL → LOW with mitigation notes
Codebase dependency graphForce-directed module/import graph — click a node to isolate its neighbors, hover for file details. Import-direction edges are clearly distinguished from real observed traffic (see below)
Guided tourSpotlight walkthrough of every section, shown automatically the first time a report is opened; replay anytime with the ? button

Codebase dependency graph

Every source file (Python, JS/TS, Go, Java, Rust, Ruby) becomes a node; every real import becomes an edge — resolved with a language-appropriate parser (Python's ast module, regex for JS/TS/Go/ Java/Rust/Ruby), not guessed. Files that match an already-detected component (an LLM call, a database client, a queue) get an edge to that component too, so you can see exactly which files talk to Redis, OpenAI, etc. Large repos (350+ files) are automatically aggregated into directory-level nodes so the graph stays readable; override with --graph-detail files or --graph-detail dirs.

By default the graph only shows what the code says (import direction, static "this file calls Redis"), which is honest but not the same as real traffic. Pass --access-log /path/to/access.log (any combined/common log format) to overlay real observed request counts onto the HTTP-entry edges — and the generated report includes a ready-to-run k6 load-test script covering up to 5 detected routes, so the "Practical throughput" number can be checked against a real measurement instead of only a static-analysis estimate.

What it detects

CategoryExamples
API frameworksFastAPI, Flask, Django, Express, Nest.js, Gin
Gatewaysnginx, Caddy, Traefik (with rate limits + worker_connections)
LLM providersOpenAI, Anthropic Claude, Cohere, AWS Bedrock
Vector storesQdrant, Pinecone, Weaviate, ChromaDB, pgvector, FAISS, Milvus
DatabasesPostgreSQL, MySQL, MongoDB, SQLite, Redis
QueuesCelery, BullMQ, Kafka, RabbitMQ, RQ, AWS SQS
Async primitivesasyncio.Semaphore, run_in_executor, asyncio.gather, asyncio.Lock
Workers--workers N (uvicorn/gunicorn), replicas: (docker-compose), PM2 instances
External sourcesJira, Azure DevOps, Slack, GitHub, Stripe, Salesforce, Twilio
EvaluationTruLens, RAGAS, LangSmith

Install

pip (CLI + MCP server)

pip install workflow-generator-mcp

workflow-generator . WORKFLOW.html       # CLI: scan and write the report
workflow-generator-mcp                    # stdio MCP server

With pip installed, any MCP host config reduces to:

{
  "mcpServers": {
    "workflow-generator": { "command": "workflow-generator-mcp" }
  }
}

Claude Code (skill)

mkdir -p ~/.claude/skills
git clone https://github.com/askuma/workflow-generator.git ~/.claude/skills/workflow-generator

Then in any Claude Code session:

/workflow-generator
/workflow-generator /path/to/project

MCP server (Claude Desktop, VS Code, Cursor, Zed, Windsurf, Continue)

1. Install the dependency:

pip install mcp

2. Add to your MCP host config (replace ~ with your actual home path):

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json (Mac)
%APPDATA%\Claude\claude_desktop_config.json (Windows)

{
  "mcpServers": {
    "workflow-generator": {
      "command": "python3",
      "args": ["~/.claude/skills/workflow-generator/mcp/server.py"]
    }
  }
}
VS Code

.vscode/mcp.json

{
  "servers": {
    "workflow-generator": {
      "type": "stdio",
      "command": "python3",
      "args": ["~/.claude/skills/workflow-generator/mcp/server.py"]
    }
  }
}
Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "workflow-generator": {
      "command": "python3",
      "args": ["~/.claude/skills/workflow-generator/mcp/server.py"]
    }
  }
}
Zed

.zed/settings.json

{
  "context_servers": {
    "workflow-generator": {
      "command": {
        "path": "python3",
        "args": ["~/.claude/skills/workflow-generator/mcp/server.py"]
      }
    }
  }
}
Windsurf

~/.windsurf/mcp_config.json

{
  "mcpServers": {
    "workflow-generator": {
      "command": "python3",
      "args": ["~/.claude/skills/workflow-generator/mcp/server.py"]
    }
  }
}

3. Restart your tool, then ask:

generate a workflow diagram for this project
how many concurrent requests can this handle?
show me the system architecture

MCP tools exposed:

  • generate_workflow — scans project, writes WORKFLOW.html, optionally opens in browser
  • analyze_workflow — returns structured JSON summary (no file written)

Command line (standalone)

No install needed beyond Python 3.8+:

python3 ~/.claude/skills/workflow-generator/scripts/analyze.py . ~/WORKFLOW.html
# then open ~/WORKFLOW.html

Optional flags:

--access-log /path/to/access.log   # overlay real request counts onto the dependency graph
--graph-detail auto|files|dirs     # force file-level or directory-level graph nodes (default: auto)

Example output (terminal)

Written: /your/project/WORKFLOW.html
Framework: FastAPI · Workers: 8 · Concurrent I/O: ~800
Practical throughput: ~50–200 req/min
Bottleneck: OpenAI (LLM latency 3–30s per call)
Gateway: nginx · 2 rate limit zone(s)
LLM: OpenAI · eval: TruLens RAG Triad
Storage: Qdrant, Redis
External sources: Jira, Azure DevOps, Slack

Repo layout

workflow-generator/
├── SKILL.md                        ← Claude Code skill definition
├── INSTALL.md                      ← detailed per-platform install guide
├── workflow_generator_mcp/
│   ├── analyze.py                  ← core scanner + HTML renderer (stdlib only)
│   └── server.py                   ← MCP stdio server (package form)
├── scripts/
│   └── analyze.py                  ← thin compatibility shim -> workflow_generator_mcp/analyze.py
├── tests/                          ← pytest suite for the scanner
├── mcp/
│   ├── server.py                   ← MCP stdio server
│   └── requirements.txt            ← pip install mcp
└── copilot/
    ├── index.js                    ← GitHub Copilot Extension (Express)
    ├── package.json
    └── openai_function.json

License

MIT

Installation

Source-derived launch command. Check the maintainer’s required arguments and credentials before running:

bash
uvx workflow-generator-mcp

Set up in your AI client

Merge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.

json
{
  "mcpServers": {
    "io-github-askuma-workflow-generator": {
      "command": "uvx",
      "args": [
        "workflow-generator-mcp"
      ]
    }
  }
}

Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.

Claude Desktop setup reference

Package

workflow-generator-mcppypi

Compatible MCP Clients

Workflow Generator works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.

  • Claude Desktop~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.
  • Cursor~/.cursor/mcp.jsonRestart Cursor for changes to take effect.
  • VS Code.vscode/mcp.jsonReload VS Code window for changes to take effect.
  • Windsurf~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect.
  • Claude Code.mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.

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