Router First Architecture Skill for Claude

by parcadei

Router-First Architecture

401 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

3880

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/parcadei/Continuous-Claude-v3 --skill router-first-architecture

The instruction itself

7 sections, as written by the author

Router-First Architecture

Route through domain routers before using individual tools. Routers abstract tool selection.

Pattern

Domain routers (like math-router) provide deterministic mapping from user intent to exact CLI commands. Always use the router first; only bypass for edge cases.

DO

Call math-router route "<intent>" before any math operation
Let domain skills co-activate with their router (via coActivate in skill-rules.json)
Trust the router's confidence score; only fall back if command: null
Keep trigger keywords/patterns in skill-rules.json broader than routing patterns

DON'T

Call individual scripts directly when a router exists
Duplicate routing logic in individual skills
Let domain skills bypass their router

Co-Activation Pattern

Domain skills should co-activate with their router:

{
  "math/abstract-algebra/groups": {
    "coActivate": ["math-router"],
    "coActivateMode": "always"
  }
}

This ensures the router is always available when domain knowledge is activated.

Two-Layer Architecture

Skill-rules trigger layer: Nudges Claude to use the router (keywords, intent patterns)
Router routing layer: Deterministic mapping to scripts via regex patterns

Keep the trigger layer broader than routing - the router should handle "not found" gracefully.

Source Sessions

2bbc8d6e: "Trigger layer was narrower than routing layer" - expanded triggers
This session: Wired 8 domain math skills to co-activate with math-router

Other skills for the same job

different authors, same section of the catalogue

Protocolsio Integration

by christophacham

×4

Integration with protocols.io API for managing scientific protocols. This skill should be used when working with protocols.io to search, create, update, or publish protocols; manage protocol steps and materials; handle discussions and comments; organize workspaces; upload and manage files; or integrate protocols.io functionality into workflows. Applicable for protocol discovery, collaborative protocol development, experiment tracking, lab protocol management, and scientific documentation.

16k tokens

Tailored Resume Generator

by frostant

×4

Analyzes job descriptions and generates tailored resumes that highlight relevant experience, skills, and achievements to maximize interview chances

3k tokens

Excalidraw Diagram Generator

by github

vendor ×3

Generate Excalidraw diagrams from natural language descriptions. Use when asked to "create a diagram", "make a flowchart", "visualize a process", "draw a system architecture", "create a mind map", or "generate an Excalidraw file". Supports flowcharts, relationship diagrams, mind maps, and system architecture diagrams. Outputs .excalidraw JSON files that can be opened directly in Excalidraw.

Build and distribute Expo development clients locally or via TestFlight

Use when you have a written implementation plan to execute in a separate session with review checkpoints

Data structure for annotated matrices in single-cell analysis. Use when working with .h5ad files or integrating with the scverse ecosystem. This is the data format skill—for analysis workflows use scanpy; for probabilistic models use scvi-tools; for population-scale queries use cellxgene-census.

16k tokens

Benchling Integration

by christophacham

×3

Benchling R&D platform integration. Access registry (DNA, proteins), inventory, ELN entries, workflows via API, build Benchling Apps, query Data Warehouse, for lab data management automation.

Comprehensive molecular biology toolkit. Use for sequence manipulation, file parsing (FASTA/GenBank/PDB), phylogenetics, and programmatic NCBI/PubMed access (Bio.Entrez). Best for batch processing, custom bioinformatics pipelines, BLAST automation. For quick lookups use gget; for multi-service integration use bioservices.

24k tokens

How to use it

Copy the folder

Take parcadei/router-first-architecture from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.