Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add rules/ekakit/lightfast-mcp/development-workflowgit clone --depth 1 https://github.com/ekakit/lightfast-mcpWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00412 | $0.00412 |
| Opus 5 | $0.00206 | $0.00206 |
| Sonnet 5 | $0.00082 | $0.00082 |
| Haiku 4.5 | $0.00041 | $0.00041 |
Grade A, and why
development-workflow scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Development Workflow
Tool Stack
- Use
uvfor dependency management and running commands - Use
taskipyfor common development tasks - Use
noxfor comprehensive testing across Python versions - Use
rufffor linting and formatting
Common Commands
Setup & Development
# Setup
uv sync --extra dev
# Development
uv run task lint # Run linting
uv run task format # Format code
uv run task test_fast # Quick tests
uv run task demo # Test working system
Server Management
uv run lightfast-mcp-orchestrator init # Create sample config
uv run lightfast-mcp-orchestrator list # List available servers
uv run lightfast-mcp-orchestrator start # Start servers interactively
uv run lightfast-mcp-orchestrator ai # Start AI client
# Individual Servers
uv run lightfast-blender-server # Start Blender server directly
uv run lightfast-mock-server # Start mock server directly
Testing Commands
# Fast feedback
nox -s test_fast # Fast tests (excluding slow)
# Full test suite
nox
# Specific test types
nox -s test_e2e # End-to-end tests
nox -s test_integration # Integration tests
nox -s test_coverage # Tests with coverage
nox -s test-3.13 # Python 3.13 tests
nox -s typecheck # MyPy type checking
nox -s verify_system # System verification
Development Guidelines
- Use async/await patterns throughout for better performance
- Prefer configuration over hardcoded values
- Include appropriate tests for new functionality
- Follow the existing project patterns and conventions
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 63 lines · 412 tokens per session scan A 007261702b8f
development-workflow is a cursor rule published in the GitHub repository ekakit/lightfast-mcp (2 stars, last pushed 1y ago), licensed MIT. It adds 412 tokens to every session, about $0.0021 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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