Borrowing it
Nothing to install: this file belongs to terrene-foundation/metis. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/terrene-foundation/metis/main/.claude/skills/03-nexus/SKILL.mdgit clone --depth 1 https://github.com/terrene-foundation/metisWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/terrene-foundation/metis/03-nexus)<a href="https://agentmods.dev/skills/terrene-foundation/metis/03-nexus"><img src="https://agentmods.dev/badge/skills/terrene-foundation/metis/03-nexus/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/terrene-foundation/metis/03-nexus"><img src="https://agentmods.dev/badge/skills/terrene-foundation/metis/03-nexus.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00172 | $0.02121 |
| Opus 5 | $0.00086 | $0.01060 |
| Sonnet 5 | $0.00034 | $0.00424 |
| Haiku 4.5 | $0.00017 | $0.00212 |
Grade A, and why
nexus 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 12d ago.
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.
This is a copy
91% identical to nexus — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 271 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Kailash Nexus - Multi-Channel Platform Framework
Nexus is a zero-config multi-channel platform built on Kailash Core SDK that deploys workflows as API + CLI + MCP simultaneously.
Features
Nexus transforms workflows into a complete platform with:
- Zero Configuration: Deploy workflows instantly without boilerplate code
- Multi-Channel Access: API, CLI, and MCP from single deployment
- Unified Sessions: Consistent session management across all channels
- Enterprise Features: Health monitoring, plugins, event system, comprehensive logging
- DataFlow Integration: Automatic CRUD API generation from database models
- Production Ready: Deployment patterns, monitoring, troubleshooting guides
- Zero-Config Platform: Workflow-based platform without manual route definition
- Async-First: Uses AsyncLocalRuntime by default for optimal performance
Quick Start
from nexus import Nexus
# Define workflow
workflow = create_my_workflow()
# Deploy to all channels at once
app = Nexus()
app.register("my_workflow", workflow.build())
app.start()
# Now available via:
# - HTTP API: POST http://localhost:8000/api/workflow/{workflow_id}
# - CLI: nexus run {workflow_id} --input '{"key": "value"}'
# - MCP: Connect via MCP client (Claude Desktop, etc.)
Reference Documentation
Getting Started
- nexus-quickstart - Quick start guide
- nexus-installation - Installation and setup
- nexus-architecture - Architecture overview
- README - Framework overview
- nexus-comparison - Nexus vs traditional frameworks
Core Concepts
- nexus-workflow-registration - Registering workflows
- nexus-multi-channel - Multi-channel architecture
- nexus-sessions - Session management
- nexus-config-options - Configuration options
What ships with it
34 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- codegen-decision-tree.md 13 KB
- golden-patterns-catalog.md 15 KB
- handler-status-codes.md 12 KB
- nexus-agent-reference.md 11 KB
- nexus-api-input-mapping.md 7.5 KB
- nexus-api-patterns.md 6.8 KB
- nexus-architecture.md 13 KB
- nexus-auth-plugin.md 9.4 KB
- nexus-cli-patterns.md 4.0 KB
- nexus-comparison.md 1.8 KB
- nexus-config-options.md 10 KB
- nexus-dataflow-integration.md 6.4 KB
- nexus-enterprise-features.md 11 KB
- nexus-essential-patterns.md 4.8 KB
- nexus-event-system.md 12 KB
- nexus-eventbus-phase2.md 5.7 KB
- nexus-extractors.md 8.4 KB
- nexus-for-fastapi-users.md 5.5 KB
- nexus-handler-support.md 6.1 KB
- nexus-health-monitoring.md 5.2 KB
- nexus-http-status-convention.md 8.8 KB
- nexus-installation.md 1.3 KB
- nexus-k8s-probes.md 2.0 KB
- nexus-mcp-channel.md 4.3 KB
- nexus-multi-channel.md 7.8 KB
- nexus-plugins.md 12 KB
- nexus-production-deployment.md 5.3 KB
- nexus-quickstart.md 3.1 KB
- nexus-security-best-practices.md 4.6 KB
- nexus-sessions.md 8.7 KB
- nexus-transport-architecture.md 4.9 KB
- nexus-troubleshooting.md 7.3 KB
- nexus-workflow-registration.md 5.6 KB
- README.md 7.2 KB
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.
- 12d ago First seen · 271 lines · 172 tokens per session scan A e1f25dc61bc9
nexus is a skill published in the GitHub repository terrene-foundation/metis (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 172 tokens to every session and 2,121 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to nexus, differing in 2 lines, and is treated as a copy.
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